mirror of https://github.com/minetest/minetest.git
1764 lines
55 KiB
C++
1764 lines
55 KiB
C++
/*
|
||
Minetest
|
||
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU Lesser General Public License as published by
|
||
the Free Software Foundation; either version 2.1 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU Lesser General Public License for more details.
|
||
|
||
You should have received a copy of the GNU Lesser General Public License along
|
||
with this program; if not, write to the Free Software Foundation, Inc.,
|
||
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
*/
|
||
|
||
#include <cmath>
|
||
#include "content_mapblock.h"
|
||
#include "util/numeric.h"
|
||
#include "util/directiontables.h"
|
||
#include "mapblock_mesh.h"
|
||
#include "settings.h"
|
||
#include "nodedef.h"
|
||
#include "client/tile.h"
|
||
#include "mesh.h"
|
||
#include <IMeshManipulator.h>
|
||
#include "client/meshgen/collector.h"
|
||
#include "client/renderingengine.h"
|
||
#include "client.h"
|
||
#include "noise.h"
|
||
|
||
// Distance of light extrapolation (for oversized nodes)
|
||
// After this distance, it gives up and considers light level constant
|
||
#define SMOOTH_LIGHTING_OVERSIZE 1.0
|
||
|
||
// Node edge count (for glasslike-framed)
|
||
#define FRAMED_EDGE_COUNT 12
|
||
|
||
// Node neighbor count, including edge-connected, but not vertex-connected
|
||
// (for glasslike-framed)
|
||
// Corresponding offsets are listed in g_27dirs
|
||
#define FRAMED_NEIGHBOR_COUNT 18
|
||
|
||
// Maps light index to corner direction
|
||
static const v3s16 light_dirs[8] = {
|
||
v3s16(-1, -1, -1),
|
||
v3s16(-1, -1, 1),
|
||
v3s16(-1, 1, -1),
|
||
v3s16(-1, 1, 1),
|
||
v3s16( 1, -1, -1),
|
||
v3s16( 1, -1, 1),
|
||
v3s16( 1, 1, -1),
|
||
v3s16( 1, 1, 1),
|
||
};
|
||
|
||
// Maps cuboid face and vertex indices to the corresponding light index
|
||
static const u8 light_indices[6][4] = {
|
||
{3, 7, 6, 2},
|
||
{0, 4, 5, 1},
|
||
{6, 7, 5, 4},
|
||
{3, 2, 0, 1},
|
||
{7, 3, 1, 5},
|
||
{2, 6, 4, 0},
|
||
};
|
||
|
||
// Standard index set to make a quad on 4 vertices
|
||
static constexpr u16 quad_indices_02[] = {0, 1, 2, 2, 3, 0};
|
||
static constexpr u16 quad_indices_13[] = {0, 1, 3, 3, 1, 2};
|
||
static const auto &quad_indices = quad_indices_02;
|
||
|
||
const std::string MapblockMeshGenerator::raillike_groupname = "connect_to_raillike";
|
||
|
||
MapblockMeshGenerator::MapblockMeshGenerator(MeshMakeData *input, MeshCollector *output,
|
||
scene::IMeshManipulator *mm):
|
||
data(input),
|
||
collector(output),
|
||
nodedef(data->nodedef),
|
||
meshmanip(mm),
|
||
blockpos_nodes(data->m_blockpos * MAP_BLOCKSIZE),
|
||
enable_mesh_cache(g_settings->getBool("enable_mesh_cache") &&
|
||
!data->m_smooth_lighting) // Mesh cache is not supported with smooth lighting
|
||
{
|
||
}
|
||
|
||
void MapblockMeshGenerator::useTile(int index, u8 set_flags, u8 reset_flags, bool special)
|
||
{
|
||
if (special)
|
||
getSpecialTile(index, &cur_node.tile, cur_node.p == data->m_crack_pos_relative);
|
||
else
|
||
getTile(index, &cur_node.tile);
|
||
if (!data->m_smooth_lighting)
|
||
cur_node.color = encode_light(cur_node.light, cur_node.f->light_source);
|
||
|
||
for (auto &layer : cur_node.tile.layers) {
|
||
layer.material_flags |= set_flags;
|
||
layer.material_flags &= ~reset_flags;
|
||
}
|
||
}
|
||
|
||
// Returns a tile, ready for use, non-rotated.
|
||
void MapblockMeshGenerator::getTile(int index, TileSpec *tile)
|
||
{
|
||
getNodeTileN(cur_node.n, cur_node.p, index, data, *tile);
|
||
}
|
||
|
||
// Returns a tile, ready for use, rotated according to the node facedir.
|
||
void MapblockMeshGenerator::getTile(v3s16 direction, TileSpec *tile)
|
||
{
|
||
getNodeTile(cur_node.n, cur_node.p, direction, data, *tile);
|
||
}
|
||
|
||
// Returns a special tile, ready for use, non-rotated.
|
||
void MapblockMeshGenerator::getSpecialTile(int index, TileSpec *tile, bool apply_crack)
|
||
{
|
||
*tile = cur_node.f->special_tiles[index];
|
||
TileLayer *top_layer = nullptr;
|
||
|
||
for (auto &layernum : tile->layers) {
|
||
TileLayer *layer = &layernum;
|
||
if (layer->texture_id == 0)
|
||
continue;
|
||
top_layer = layer;
|
||
if (!layer->has_color)
|
||
cur_node.n.getColor(*cur_node.f, &layer->color);
|
||
}
|
||
|
||
if (apply_crack)
|
||
top_layer->material_flags |= MATERIAL_FLAG_CRACK;
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawQuad(v3f *coords, const v3s16 &normal,
|
||
float vertical_tiling)
|
||
{
|
||
const v2f tcoords[4] = {v2f(0.0, 0.0), v2f(1.0, 0.0),
|
||
v2f(1.0, vertical_tiling), v2f(0.0, vertical_tiling)};
|
||
video::S3DVertex vertices[4];
|
||
bool shade_face = !cur_node.f->light_source && (normal != v3s16(0, 0, 0));
|
||
v3f normal2(normal.X, normal.Y, normal.Z);
|
||
for (int j = 0; j < 4; j++) {
|
||
vertices[j].Pos = coords[j] + cur_node.origin;
|
||
vertices[j].Normal = normal2;
|
||
if (data->m_smooth_lighting)
|
||
vertices[j].Color = blendLightColor(coords[j]);
|
||
else
|
||
vertices[j].Color = cur_node.color;
|
||
if (shade_face)
|
||
applyFacesShading(vertices[j].Color, normal2);
|
||
vertices[j].TCoords = tcoords[j];
|
||
}
|
||
collector->append(cur_node.tile, vertices, 4, quad_indices, 6);
|
||
}
|
||
|
||
static std::array<video::S3DVertex, 24> setupCuboidVertices(const aabb3f &box, const f32 *txc, TileSpec *tiles, int tilecount) {
|
||
v3f min = box.MinEdge;
|
||
v3f max = box.MaxEdge;
|
||
|
||
std::array<video::S3DVertex, 24> vertices = {{
|
||
// top
|
||
video::S3DVertex(min.X, max.Y, max.Z, 0, 1, 0, {}, txc[0], txc[1]),
|
||
video::S3DVertex(max.X, max.Y, max.Z, 0, 1, 0, {}, txc[2], txc[1]),
|
||
video::S3DVertex(max.X, max.Y, min.Z, 0, 1, 0, {}, txc[2], txc[3]),
|
||
video::S3DVertex(min.X, max.Y, min.Z, 0, 1, 0, {}, txc[0], txc[3]),
|
||
// bottom
|
||
video::S3DVertex(min.X, min.Y, min.Z, 0, -1, 0, {}, txc[4], txc[5]),
|
||
video::S3DVertex(max.X, min.Y, min.Z, 0, -1, 0, {}, txc[6], txc[5]),
|
||
video::S3DVertex(max.X, min.Y, max.Z, 0, -1, 0, {}, txc[6], txc[7]),
|
||
video::S3DVertex(min.X, min.Y, max.Z, 0, -1, 0, {}, txc[4], txc[7]),
|
||
// right
|
||
video::S3DVertex(max.X, max.Y, min.Z, 1, 0, 0, {}, txc[ 8], txc[9]),
|
||
video::S3DVertex(max.X, max.Y, max.Z, 1, 0, 0, {}, txc[10], txc[9]),
|
||
video::S3DVertex(max.X, min.Y, max.Z, 1, 0, 0, {}, txc[10], txc[11]),
|
||
video::S3DVertex(max.X, min.Y, min.Z, 1, 0, 0, {}, txc[ 8], txc[11]),
|
||
// left
|
||
video::S3DVertex(min.X, max.Y, max.Z, -1, 0, 0, {}, txc[12], txc[13]),
|
||
video::S3DVertex(min.X, max.Y, min.Z, -1, 0, 0, {}, txc[14], txc[13]),
|
||
video::S3DVertex(min.X, min.Y, min.Z, -1, 0, 0, {}, txc[14], txc[15]),
|
||
video::S3DVertex(min.X, min.Y, max.Z, -1, 0, 0, {}, txc[12], txc[15]),
|
||
// back
|
||
video::S3DVertex(max.X, max.Y, max.Z, 0, 0, 1, {}, txc[16], txc[17]),
|
||
video::S3DVertex(min.X, max.Y, max.Z, 0, 0, 1, {}, txc[18], txc[17]),
|
||
video::S3DVertex(min.X, min.Y, max.Z, 0, 0, 1, {}, txc[18], txc[19]),
|
||
video::S3DVertex(max.X, min.Y, max.Z, 0, 0, 1, {}, txc[16], txc[19]),
|
||
// front
|
||
video::S3DVertex(min.X, max.Y, min.Z, 0, 0, -1, {}, txc[20], txc[21]),
|
||
video::S3DVertex(max.X, max.Y, min.Z, 0, 0, -1, {}, txc[22], txc[21]),
|
||
video::S3DVertex(max.X, min.Y, min.Z, 0, 0, -1, {}, txc[22], txc[23]),
|
||
video::S3DVertex(min.X, min.Y, min.Z, 0, 0, -1, {}, txc[20], txc[23]),
|
||
}};
|
||
|
||
for (int face = 0; face < 6; face++) {
|
||
int tileindex = MYMIN(face, tilecount - 1);
|
||
const TileSpec &tile = tiles[tileindex];
|
||
for (int j = 0; j < 4; j++) {
|
||
video::S3DVertex &vertex = vertices[face * 4 + j];
|
||
v2f &tcoords = vertex.TCoords;
|
||
switch (tile.rotation) {
|
||
case TileRotation::None:
|
||
break;
|
||
case TileRotation::R90:
|
||
tcoords.set(-tcoords.Y, tcoords.X);
|
||
break;
|
||
case TileRotation::R180:
|
||
tcoords.set(-tcoords.X, -tcoords.Y);
|
||
break;
|
||
case TileRotation::R270:
|
||
tcoords.set(tcoords.Y, -tcoords.X);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
return vertices;
|
||
}
|
||
|
||
enum class QuadDiagonal {
|
||
Diag02,
|
||
Diag13,
|
||
};
|
||
|
||
// Create a cuboid with custom lighting.
|
||
// tiles - the tiles (materials) to use (for all 6 faces)
|
||
// tilecount - number of entries in tiles, 1<=tilecount<=6
|
||
// txc - texture coordinates - this is a list of texture coordinates
|
||
// for the opposite corners of each face - therefore, there
|
||
// should be (2+2)*6=24 values in the list. The order of
|
||
// the faces in the list is up-down-right-left-back-front
|
||
// (compatible with ContentFeatures).
|
||
// mask - a bit mask that suppresses drawing of tiles.
|
||
// tile i will not be drawn if mask & (1 << i) is 1
|
||
// face_lighter(int face, video::S3DVertex vertices[4]) -> QuadDiagonal -
|
||
// a callback that will be called for each face drawn to setup vertex colors,
|
||
// and to choose diagonal to split the quad at.
|
||
template <typename Fn>
|
||
void MapblockMeshGenerator::drawCuboid(const aabb3f &box,
|
||
TileSpec *tiles, int tilecount, const f32 *txc, u8 mask, Fn &&face_lighter)
|
||
{
|
||
assert(tilecount >= 1 && tilecount <= 6); // pre-condition
|
||
|
||
auto vertices = setupCuboidVertices(box, txc, tiles, tilecount);
|
||
|
||
for (int k = 0; k < 6; ++k) {
|
||
if (mask & (1 << k))
|
||
continue;
|
||
QuadDiagonal diagonal = face_lighter(k, &vertices[4 * k]);
|
||
const u16 *indices = diagonal == QuadDiagonal::Diag13 ? quad_indices_13 : quad_indices_02;
|
||
int tileindex = MYMIN(k, tilecount - 1);
|
||
collector->append(tiles[tileindex], &vertices[4 * k], 4, indices, 6);
|
||
}
|
||
}
|
||
|
||
// Gets the base lighting values for a node
|
||
void MapblockMeshGenerator::getSmoothLightFrame()
|
||
{
|
||
for (int k = 0; k < 8; ++k)
|
||
cur_node.frame.sunlight[k] = false;
|
||
for (int k = 0; k < 8; ++k) {
|
||
LightPair light(getSmoothLightTransparent(blockpos_nodes + cur_node.p, light_dirs[k], data));
|
||
cur_node.frame.lightsDay[k] = light.lightDay;
|
||
cur_node.frame.lightsNight[k] = light.lightNight;
|
||
// If there is direct sunlight and no ambient occlusion at some corner,
|
||
// mark the vertical edge (top and bottom corners) containing it.
|
||
if (light.lightDay == 255) {
|
||
cur_node.frame.sunlight[k] = true;
|
||
cur_node.frame.sunlight[k ^ 2] = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Calculates vertex light level
|
||
// vertex_pos - vertex position in the node (coordinates are clamped to [0.0, 1.0] or so)
|
||
LightInfo MapblockMeshGenerator::blendLight(const v3f &vertex_pos)
|
||
{
|
||
// Light levels at (logical) node corners are known. Here,
|
||
// trilinear interpolation is used to calculate light level
|
||
// at a given point in the node.
|
||
f32 x = core::clamp(vertex_pos.X / BS + 0.5, 0.0 - SMOOTH_LIGHTING_OVERSIZE, 1.0 + SMOOTH_LIGHTING_OVERSIZE);
|
||
f32 y = core::clamp(vertex_pos.Y / BS + 0.5, 0.0 - SMOOTH_LIGHTING_OVERSIZE, 1.0 + SMOOTH_LIGHTING_OVERSIZE);
|
||
f32 z = core::clamp(vertex_pos.Z / BS + 0.5, 0.0 - SMOOTH_LIGHTING_OVERSIZE, 1.0 + SMOOTH_LIGHTING_OVERSIZE);
|
||
f32 lightDay = 0.0; // daylight
|
||
f32 lightNight = 0.0;
|
||
f32 lightBoosted = 0.0; // daylight + direct sunlight, if any
|
||
for (int k = 0; k < 8; ++k) {
|
||
f32 dx = (k & 4) ? x : 1 - x;
|
||
f32 dy = (k & 2) ? y : 1 - y;
|
||
f32 dz = (k & 1) ? z : 1 - z;
|
||
// Use direct sunlight (255), if any; use daylight otherwise.
|
||
f32 light_boosted = cur_node.frame.sunlight[k] ? 255 : cur_node.frame.lightsDay[k];
|
||
lightDay += dx * dy * dz * cur_node.frame.lightsDay[k];
|
||
lightNight += dx * dy * dz * cur_node.frame.lightsNight[k];
|
||
lightBoosted += dx * dy * dz * light_boosted;
|
||
}
|
||
return LightInfo{lightDay, lightNight, lightBoosted};
|
||
}
|
||
|
||
// Calculates vertex color to be used in mapblock mesh
|
||
// vertex_pos - vertex position in the node (coordinates are clamped to [0.0, 1.0] or so)
|
||
// tile_color - node's tile color
|
||
video::SColor MapblockMeshGenerator::blendLightColor(const v3f &vertex_pos)
|
||
{
|
||
LightInfo light = blendLight(vertex_pos);
|
||
return encode_light(light.getPair(), cur_node.f->light_source);
|
||
}
|
||
|
||
video::SColor MapblockMeshGenerator::blendLightColor(const v3f &vertex_pos,
|
||
const v3f &vertex_normal)
|
||
{
|
||
LightInfo light = blendLight(vertex_pos);
|
||
video::SColor color = encode_light(light.getPair(MYMAX(0.0f, vertex_normal.Y)),
|
||
cur_node.f->light_source);
|
||
if (!cur_node.f->light_source)
|
||
applyFacesShading(color, vertex_normal);
|
||
return color;
|
||
}
|
||
|
||
void MapblockMeshGenerator::generateCuboidTextureCoords(const aabb3f &box, f32 *coords)
|
||
{
|
||
f32 tx1 = (box.MinEdge.X / BS) + 0.5;
|
||
f32 ty1 = (box.MinEdge.Y / BS) + 0.5;
|
||
f32 tz1 = (box.MinEdge.Z / BS) + 0.5;
|
||
f32 tx2 = (box.MaxEdge.X / BS) + 0.5;
|
||
f32 ty2 = (box.MaxEdge.Y / BS) + 0.5;
|
||
f32 tz2 = (box.MaxEdge.Z / BS) + 0.5;
|
||
f32 txc[24] = {
|
||
tx1, 1 - tz2, tx2, 1 - tz1, // up
|
||
tx1, tz1, tx2, tz2, // down
|
||
tz1, 1 - ty2, tz2, 1 - ty1, // right
|
||
1 - tz2, 1 - ty2, 1 - tz1, 1 - ty1, // left
|
||
1 - tx2, 1 - ty2, 1 - tx1, 1 - ty1, // back
|
||
tx1, 1 - ty2, tx2, 1 - ty1, // front
|
||
};
|
||
for (int i = 0; i != 24; ++i)
|
||
coords[i] = txc[i];
|
||
}
|
||
|
||
static inline int lightDiff(LightPair a, LightPair b)
|
||
{
|
||
return abs(a.lightDay - b.lightDay) + abs(a.lightNight - b.lightNight);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawAutoLightedCuboid(aabb3f box, const f32 *txc,
|
||
TileSpec *tiles, int tile_count, u8 mask)
|
||
{
|
||
bool scale = std::fabs(cur_node.f->visual_scale - 1.0f) > 1e-3f;
|
||
f32 texture_coord_buf[24];
|
||
f32 dx1 = box.MinEdge.X;
|
||
f32 dy1 = box.MinEdge.Y;
|
||
f32 dz1 = box.MinEdge.Z;
|
||
f32 dx2 = box.MaxEdge.X;
|
||
f32 dy2 = box.MaxEdge.Y;
|
||
f32 dz2 = box.MaxEdge.Z;
|
||
if (scale) {
|
||
if (!txc) { // generate texture coords before scaling
|
||
generateCuboidTextureCoords(box, texture_coord_buf);
|
||
txc = texture_coord_buf;
|
||
}
|
||
box.MinEdge *= cur_node.f->visual_scale;
|
||
box.MaxEdge *= cur_node.f->visual_scale;
|
||
}
|
||
box.MinEdge += cur_node.origin;
|
||
box.MaxEdge += cur_node.origin;
|
||
if (!txc) {
|
||
generateCuboidTextureCoords(box, texture_coord_buf);
|
||
txc = texture_coord_buf;
|
||
}
|
||
if (!tiles) {
|
||
tiles = &cur_node.tile;
|
||
tile_count = 1;
|
||
}
|
||
if (data->m_smooth_lighting) {
|
||
LightInfo lights[8];
|
||
for (int j = 0; j < 8; ++j) {
|
||
v3f d;
|
||
d.X = (j & 4) ? dx2 : dx1;
|
||
d.Y = (j & 2) ? dy2 : dy1;
|
||
d.Z = (j & 1) ? dz2 : dz1;
|
||
lights[j] = blendLight(d);
|
||
}
|
||
|
||
drawCuboid(box, tiles, tile_count, txc, mask, [&] (int face, video::S3DVertex vertices[4]) {
|
||
LightPair final_lights[4];
|
||
for (int j = 0; j < 4; j++) {
|
||
video::S3DVertex &vertex = vertices[j];
|
||
final_lights[j] = lights[light_indices[face][j]].getPair(MYMAX(0.0f, vertex.Normal.Y));
|
||
vertex.Color = encode_light(final_lights[j], cur_node.f->light_source);
|
||
if (!cur_node.f->light_source)
|
||
applyFacesShading(vertex.Color, vertex.Normal);
|
||
}
|
||
if (lightDiff(final_lights[1], final_lights[3]) < lightDiff(final_lights[0], final_lights[2]))
|
||
return QuadDiagonal::Diag13;
|
||
return QuadDiagonal::Diag02;
|
||
});
|
||
} else {
|
||
drawCuboid(box, tiles, tile_count, txc, mask, [&] (int face, video::S3DVertex vertices[4]) {
|
||
video::SColor color = encode_light(cur_node.light, cur_node.f->light_source);
|
||
if (!cur_node.f->light_source)
|
||
applyFacesShading(color, vertices[0].Normal);
|
||
for (int j = 0; j < 4; j++) {
|
||
video::S3DVertex &vertex = vertices[j];
|
||
vertex.Color = color;
|
||
}
|
||
return QuadDiagonal::Diag02;
|
||
});
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawSolidNode()
|
||
{
|
||
u8 faces = 0; // k-th bit will be set if k-th face is to be drawn.
|
||
static const v3s16 tile_dirs[6] = {
|
||
v3s16(0, 1, 0),
|
||
v3s16(0, -1, 0),
|
||
v3s16(1, 0, 0),
|
||
v3s16(-1, 0, 0),
|
||
v3s16(0, 0, 1),
|
||
v3s16(0, 0, -1)
|
||
};
|
||
TileSpec tiles[6];
|
||
u16 lights[6];
|
||
content_t n1 = cur_node.n.getContent();
|
||
for (int face = 0; face < 6; face++) {
|
||
v3s16 p2 = blockpos_nodes + cur_node.p + tile_dirs[face];
|
||
MapNode neighbor = data->m_vmanip.getNodeNoEx(p2);
|
||
content_t n2 = neighbor.getContent();
|
||
bool backface_culling = cur_node.f->drawtype == NDT_NORMAL;
|
||
if (n2 == n1)
|
||
continue;
|
||
if (n2 == CONTENT_IGNORE)
|
||
continue;
|
||
if (n2 != CONTENT_AIR) {
|
||
const ContentFeatures &f2 = nodedef->get(n2);
|
||
if (f2.solidness == 2)
|
||
continue;
|
||
if (cur_node.f->drawtype == NDT_LIQUID) {
|
||
if (cur_node.f->sameLiquidRender(f2))
|
||
continue;
|
||
backface_culling = f2.solidness || f2.visual_solidness;
|
||
}
|
||
}
|
||
faces |= 1 << face;
|
||
getTile(tile_dirs[face], &tiles[face]);
|
||
for (auto &layer : tiles[face].layers) {
|
||
if (backface_culling)
|
||
layer.material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
|
||
layer.material_flags |= MATERIAL_FLAG_TILEABLE_HORIZONTAL;
|
||
layer.material_flags |= MATERIAL_FLAG_TILEABLE_VERTICAL;
|
||
}
|
||
if (!data->m_smooth_lighting) {
|
||
lights[face] = getFaceLight(cur_node.n, neighbor, nodedef);
|
||
}
|
||
}
|
||
if (!faces)
|
||
return;
|
||
u8 mask = faces ^ 0b0011'1111; // k-th bit is set if k-th face is to be *omitted*, as expected by cuboid drawing functions.
|
||
cur_node.origin = intToFloat(cur_node.p, BS);
|
||
auto box = aabb3f(v3f(-0.5 * BS), v3f(0.5 * BS));
|
||
f32 texture_coord_buf[24];
|
||
box.MinEdge += cur_node.origin;
|
||
box.MaxEdge += cur_node.origin;
|
||
generateCuboidTextureCoords(box, texture_coord_buf);
|
||
if (data->m_smooth_lighting) {
|
||
LightPair lights[6][4];
|
||
for (int face = 0; face < 6; ++face) {
|
||
for (int k = 0; k < 4; k++) {
|
||
v3s16 corner = light_dirs[light_indices[face][k]];
|
||
lights[face][k] = LightPair(getSmoothLightSolid(
|
||
blockpos_nodes + cur_node.p, tile_dirs[face], corner, data));
|
||
}
|
||
}
|
||
|
||
drawCuboid(box, tiles, 6, texture_coord_buf, mask, [&] (int face, video::S3DVertex vertices[4]) {
|
||
auto final_lights = lights[face];
|
||
for (int j = 0; j < 4; j++) {
|
||
video::S3DVertex &vertex = vertices[j];
|
||
vertex.Color = encode_light(final_lights[j], cur_node.f->light_source);
|
||
if (!cur_node.f->light_source)
|
||
applyFacesShading(vertex.Color, vertex.Normal);
|
||
}
|
||
if (lightDiff(final_lights[1], final_lights[3]) < lightDiff(final_lights[0], final_lights[2]))
|
||
return QuadDiagonal::Diag13;
|
||
return QuadDiagonal::Diag02;
|
||
});
|
||
} else {
|
||
drawCuboid(box, tiles, 6, texture_coord_buf, mask, [&] (int face, video::S3DVertex vertices[4]) {
|
||
video::SColor color = encode_light(lights[face], cur_node.f->light_source);
|
||
if (!cur_node.f->light_source)
|
||
applyFacesShading(color, vertices[0].Normal);
|
||
for (int j = 0; j < 4; j++) {
|
||
video::S3DVertex &vertex = vertices[j];
|
||
vertex.Color = color;
|
||
}
|
||
return QuadDiagonal::Diag02;
|
||
});
|
||
}
|
||
}
|
||
|
||
u8 MapblockMeshGenerator::getNodeBoxMask(aabb3f box, u8 solid_neighbors, u8 sametype_neighbors) const
|
||
{
|
||
const f32 NODE_BOUNDARY = 0.5 * BS;
|
||
|
||
// For an oversized nodebox, return immediately
|
||
if (box.MaxEdge.X > NODE_BOUNDARY ||
|
||
box.MinEdge.X < -NODE_BOUNDARY ||
|
||
box.MaxEdge.Y > NODE_BOUNDARY ||
|
||
box.MinEdge.Y < -NODE_BOUNDARY ||
|
||
box.MaxEdge.Z > NODE_BOUNDARY ||
|
||
box.MinEdge.Z < -NODE_BOUNDARY)
|
||
return 0;
|
||
|
||
// We can skip faces at node boundary if the matching neighbor is solid
|
||
u8 solid_mask =
|
||
(box.MaxEdge.Y == NODE_BOUNDARY ? 1 : 0) |
|
||
(box.MinEdge.Y == -NODE_BOUNDARY ? 2 : 0) |
|
||
(box.MaxEdge.X == NODE_BOUNDARY ? 4 : 0) |
|
||
(box.MinEdge.X == -NODE_BOUNDARY ? 8 : 0) |
|
||
(box.MaxEdge.Z == NODE_BOUNDARY ? 16 : 0) |
|
||
(box.MinEdge.Z == -NODE_BOUNDARY ? 32 : 0);
|
||
|
||
u8 sametype_mask = 0;
|
||
if (cur_node.f->alpha == AlphaMode::ALPHAMODE_OPAQUE) {
|
||
// In opaque nodeboxes, faces on opposite sides can cancel
|
||
// each other out if there is a matching neighbor of the same type
|
||
sametype_mask =
|
||
((solid_mask & 3) == 3 ? 3 : 0) |
|
||
((solid_mask & 12) == 12 ? 12 : 0) |
|
||
((solid_mask & 48) == 48 ? 48 : 0);
|
||
}
|
||
|
||
// Combine masks with actual neighbors to get the faces to be skipped
|
||
return (solid_mask & solid_neighbors) | (sametype_mask & sametype_neighbors);
|
||
}
|
||
|
||
|
||
void MapblockMeshGenerator::prepareLiquidNodeDrawing()
|
||
{
|
||
getSpecialTile(0, &cur_liquid.tile_top);
|
||
getSpecialTile(1, &cur_liquid.tile);
|
||
|
||
MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + cur_node.p + v3s16(0, 1, 0));
|
||
MapNode nbottom = data->m_vmanip.getNodeNoEx(blockpos_nodes + cur_node.p + v3s16(0, -1, 0));
|
||
cur_liquid.c_flowing = cur_node.f->liquid_alternative_flowing_id;
|
||
cur_liquid.c_source = cur_node.f->liquid_alternative_source_id;
|
||
cur_liquid.top_is_same_liquid = (ntop.getContent() == cur_liquid.c_flowing)
|
||
|| (ntop.getContent() == cur_liquid.c_source);
|
||
cur_liquid.draw_bottom = (nbottom.getContent() != cur_liquid.c_flowing)
|
||
&& (nbottom.getContent() != cur_liquid.c_source);
|
||
if (cur_liquid.draw_bottom) {
|
||
const ContentFeatures &f2 = nodedef->get(nbottom.getContent());
|
||
if (f2.solidness > 1)
|
||
cur_liquid.draw_bottom = false;
|
||
}
|
||
|
||
if (data->m_smooth_lighting)
|
||
return; // don't need to pre-compute anything in this case
|
||
|
||
if (cur_node.f->light_source != 0) {
|
||
// If this liquid emits light and doesn't contain light, draw
|
||
// it at what it emits, for an increased effect
|
||
u8 e = decode_light(cur_node.f->light_source);
|
||
cur_node.light = LightPair(std::max(e, cur_node.light.lightDay),
|
||
std::max(e, cur_node.light.lightNight));
|
||
} else if (nodedef->getLightingFlags(ntop).has_light) {
|
||
// Otherwise, use the light of the node on top if possible
|
||
cur_node.light = LightPair(getInteriorLight(ntop, 0, nodedef));
|
||
}
|
||
|
||
cur_liquid.color_top = encode_light(cur_node.light, cur_node.f->light_source);
|
||
cur_node.color = encode_light(cur_node.light, cur_node.f->light_source);
|
||
}
|
||
|
||
void MapblockMeshGenerator::getLiquidNeighborhood()
|
||
{
|
||
u8 range = rangelim(nodedef->get(cur_liquid.c_flowing).liquid_range, 1, 8);
|
||
|
||
for (int w = -1; w <= 1; w++)
|
||
for (int u = -1; u <= 1; u++) {
|
||
LiquidData::NeighborData &neighbor = cur_liquid.neighbors[w + 1][u + 1];
|
||
v3s16 p2 = cur_node.p + v3s16(u, 0, w);
|
||
MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
|
||
neighbor.content = n2.getContent();
|
||
neighbor.level = -0.5f;
|
||
neighbor.is_same_liquid = false;
|
||
neighbor.top_is_same_liquid = false;
|
||
|
||
if (neighbor.content == CONTENT_IGNORE)
|
||
continue;
|
||
|
||
if (neighbor.content == cur_liquid.c_source) {
|
||
neighbor.is_same_liquid = true;
|
||
neighbor.level = 0.5f;
|
||
} else if (neighbor.content == cur_liquid.c_flowing) {
|
||
neighbor.is_same_liquid = true;
|
||
u8 liquid_level = (n2.param2 & LIQUID_LEVEL_MASK);
|
||
if (liquid_level <= LIQUID_LEVEL_MAX + 1 - range)
|
||
liquid_level = 0;
|
||
else
|
||
liquid_level -= (LIQUID_LEVEL_MAX + 1 - range);
|
||
neighbor.level = (-0.5f + (liquid_level + 0.5f) / range);
|
||
}
|
||
|
||
// Check node above neighbor.
|
||
// NOTE: This doesn't get executed if neighbor
|
||
// doesn't exist
|
||
p2.Y++;
|
||
n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
|
||
if (n2.getContent() == cur_liquid.c_source || n2.getContent() == cur_liquid.c_flowing)
|
||
neighbor.top_is_same_liquid = true;
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::calculateCornerLevels()
|
||
{
|
||
for (int k = 0; k < 2; k++)
|
||
for (int i = 0; i < 2; i++)
|
||
cur_liquid.corner_levels[k][i] = getCornerLevel(i, k);
|
||
}
|
||
|
||
f32 MapblockMeshGenerator::getCornerLevel(int i, int k) const
|
||
{
|
||
float sum = 0;
|
||
int count = 0;
|
||
int air_count = 0;
|
||
for (int dk = 0; dk < 2; dk++)
|
||
for (int di = 0; di < 2; di++) {
|
||
const LiquidData::NeighborData &neighbor_data = cur_liquid.neighbors[k + dk][i + di];
|
||
content_t content = neighbor_data.content;
|
||
|
||
// If top is liquid, draw starting from top of node
|
||
if (neighbor_data.top_is_same_liquid)
|
||
return 0.5f;
|
||
|
||
// Source always has the full height
|
||
if (content == cur_liquid.c_source)
|
||
return 0.5f;
|
||
|
||
// Flowing liquid has level information
|
||
if (content == cur_liquid.c_flowing) {
|
||
sum += neighbor_data.level;
|
||
count++;
|
||
} else if (content == CONTENT_AIR) {
|
||
air_count++;
|
||
}
|
||
}
|
||
if (air_count >= 2)
|
||
return -0.5f + 0.2f / BS;
|
||
if (count > 0)
|
||
return sum / count;
|
||
return 0;
|
||
}
|
||
|
||
namespace {
|
||
struct LiquidFaceDesc {
|
||
v3s16 dir; // XZ
|
||
v3s16 p[2]; // XZ only; 1 means +, 0 means -
|
||
};
|
||
struct UV {
|
||
int u, v;
|
||
};
|
||
static const LiquidFaceDesc liquid_base_faces[4] = {
|
||
{v3s16( 1, 0, 0), {v3s16(1, 0, 1), v3s16(1, 0, 0)}},
|
||
{v3s16(-1, 0, 0), {v3s16(0, 0, 0), v3s16(0, 0, 1)}},
|
||
{v3s16( 0, 0, 1), {v3s16(0, 0, 1), v3s16(1, 0, 1)}},
|
||
{v3s16( 0, 0, -1), {v3s16(1, 0, 0), v3s16(0, 0, 0)}},
|
||
};
|
||
static const UV liquid_base_vertices[4] = {
|
||
{0, 1},
|
||
{1, 1},
|
||
{1, 0},
|
||
{0, 0}
|
||
};
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawLiquidSides()
|
||
{
|
||
for (const auto &face : liquid_base_faces) {
|
||
const LiquidData::NeighborData &neighbor = cur_liquid.neighbors[face.dir.Z + 1][face.dir.X + 1];
|
||
|
||
// No face between nodes of the same liquid, unless there is node
|
||
// at the top to which it should be connected. Again, unless the face
|
||
// there would be inside the liquid
|
||
if (neighbor.is_same_liquid) {
|
||
if (!cur_liquid.top_is_same_liquid)
|
||
continue;
|
||
if (neighbor.top_is_same_liquid)
|
||
continue;
|
||
}
|
||
|
||
const ContentFeatures &neighbor_features = nodedef->get(neighbor.content);
|
||
// Don't draw face if neighbor is blocking the view
|
||
if (neighbor_features.solidness == 2)
|
||
continue;
|
||
|
||
video::S3DVertex vertices[4];
|
||
for (int j = 0; j < 4; j++) {
|
||
const UV &vertex = liquid_base_vertices[j];
|
||
const v3s16 &base = face.p[vertex.u];
|
||
float v = vertex.v;
|
||
|
||
v3f pos;
|
||
pos.X = (base.X - 0.5f) * BS;
|
||
pos.Z = (base.Z - 0.5f) * BS;
|
||
if (vertex.v) {
|
||
pos.Y = (neighbor.is_same_liquid ? cur_liquid.corner_levels[base.Z][base.X] : -0.5f) * BS;
|
||
} else if (cur_liquid.top_is_same_liquid) {
|
||
pos.Y = 0.5f * BS;
|
||
} else {
|
||
pos.Y = cur_liquid.corner_levels[base.Z][base.X] * BS;
|
||
v += 0.5f - cur_liquid.corner_levels[base.Z][base.X];
|
||
}
|
||
|
||
if (data->m_smooth_lighting)
|
||
cur_node.color = blendLightColor(pos);
|
||
pos += cur_node.origin;
|
||
vertices[j] = video::S3DVertex(pos.X, pos.Y, pos.Z, 0, 0, 0, cur_node.color, vertex.u, v);
|
||
};
|
||
collector->append(cur_liquid.tile, vertices, 4, quad_indices, 6);
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawLiquidTop()
|
||
{
|
||
// To get backface culling right, the vertices need to go
|
||
// clockwise around the front of the face. And we happened to
|
||
// calculate corner levels in exact reverse order.
|
||
static const int corner_resolve[4][2] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}};
|
||
|
||
video::S3DVertex vertices[4] = {
|
||
video::S3DVertex(-BS / 2, 0, BS / 2, 0, 0, 0, cur_liquid.color_top, 0, 1),
|
||
video::S3DVertex( BS / 2, 0, BS / 2, 0, 0, 0, cur_liquid.color_top, 1, 1),
|
||
video::S3DVertex( BS / 2, 0, -BS / 2, 0, 0, 0, cur_liquid.color_top, 1, 0),
|
||
video::S3DVertex(-BS / 2, 0, -BS / 2, 0, 0, 0, cur_liquid.color_top, 0, 0),
|
||
};
|
||
|
||
for (int i = 0; i < 4; i++) {
|
||
int u = corner_resolve[i][0];
|
||
int w = corner_resolve[i][1];
|
||
vertices[i].Pos.Y += cur_liquid.corner_levels[w][u] * BS;
|
||
if (data->m_smooth_lighting)
|
||
vertices[i].Color = blendLightColor(vertices[i].Pos);
|
||
vertices[i].Pos += cur_node.origin;
|
||
}
|
||
|
||
// Default downwards-flowing texture animation goes from
|
||
// -Z towards +Z, thus the direction is +Z.
|
||
// Rotate texture to make animation go in flow direction
|
||
// Positive if liquid moves towards +Z
|
||
f32 dz = (cur_liquid.corner_levels[0][0] + cur_liquid.corner_levels[0][1]) -
|
||
(cur_liquid.corner_levels[1][0] + cur_liquid.corner_levels[1][1]);
|
||
// Positive if liquid moves towards +X
|
||
f32 dx = (cur_liquid.corner_levels[0][0] + cur_liquid.corner_levels[1][0]) -
|
||
(cur_liquid.corner_levels[0][1] + cur_liquid.corner_levels[1][1]);
|
||
v2f tcoord_center(0.5, 0.5);
|
||
v2f tcoord_translate(blockpos_nodes.Z + cur_node.p.Z,
|
||
blockpos_nodes.X + cur_node.p.X);
|
||
v2f dir = v2f(dx, dz).normalize();
|
||
if (dir == v2f{0.0f, 0.0f}) // if corners are symmetrical
|
||
dir = v2f{1.0f, 0.0f};
|
||
|
||
// Rotate tcoord_translate around the origin. The X axis turns to dir.
|
||
tcoord_translate.set(
|
||
dir.X * tcoord_translate.X - dir.Y * tcoord_translate.Y,
|
||
dir.Y * tcoord_translate.X + dir.X * tcoord_translate.Y);
|
||
|
||
tcoord_translate.X -= floor(tcoord_translate.X);
|
||
tcoord_translate.Y -= floor(tcoord_translate.Y);
|
||
|
||
for (video::S3DVertex &vertex : vertices) {
|
||
// Rotate vertex.TCoords around tcoord_center. The X axis turns to dir.
|
||
vertex.TCoords -= tcoord_center;
|
||
vertex.TCoords.set(
|
||
dir.X * vertex.TCoords.X - dir.Y * vertex.TCoords.Y,
|
||
dir.Y * vertex.TCoords.X + dir.X * vertex.TCoords.Y);
|
||
vertex.TCoords += tcoord_center;
|
||
|
||
vertex.TCoords += tcoord_translate;
|
||
}
|
||
|
||
std::swap(vertices[0].TCoords, vertices[2].TCoords);
|
||
|
||
collector->append(cur_liquid.tile_top, vertices, 4, quad_indices, 6);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawLiquidBottom()
|
||
{
|
||
video::S3DVertex vertices[4] = {
|
||
video::S3DVertex(-BS / 2, -BS / 2, -BS / 2, 0, 0, 0, cur_liquid.color_top, 0, 0),
|
||
video::S3DVertex( BS / 2, -BS / 2, -BS / 2, 0, 0, 0, cur_liquid.color_top, 1, 0),
|
||
video::S3DVertex( BS / 2, -BS / 2, BS / 2, 0, 0, 0, cur_liquid.color_top, 1, 1),
|
||
video::S3DVertex(-BS / 2, -BS / 2, BS / 2, 0, 0, 0, cur_liquid.color_top, 0, 1),
|
||
};
|
||
|
||
for (int i = 0; i < 4; i++) {
|
||
if (data->m_smooth_lighting)
|
||
vertices[i].Color = blendLightColor(vertices[i].Pos);
|
||
vertices[i].Pos += cur_node.origin;
|
||
}
|
||
|
||
collector->append(cur_liquid.tile_top, vertices, 4, quad_indices, 6);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawLiquidNode()
|
||
{
|
||
prepareLiquidNodeDrawing();
|
||
getLiquidNeighborhood();
|
||
calculateCornerLevels();
|
||
drawLiquidSides();
|
||
if (!cur_liquid.top_is_same_liquid)
|
||
drawLiquidTop();
|
||
if (cur_liquid.draw_bottom)
|
||
drawLiquidBottom();
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawGlasslikeNode()
|
||
{
|
||
useTile(0, 0, 0);
|
||
|
||
for (int face = 0; face < 6; face++) {
|
||
// Check this neighbor
|
||
v3s16 dir = g_6dirs[face];
|
||
v3s16 neighbor_pos = blockpos_nodes + cur_node.p + dir;
|
||
MapNode neighbor = data->m_vmanip.getNodeNoExNoEmerge(neighbor_pos);
|
||
// Don't make face if neighbor is of same type
|
||
if (neighbor.getContent() == cur_node.n.getContent())
|
||
continue;
|
||
// Face at Z-
|
||
v3f vertices[4] = {
|
||
v3f(-BS / 2, BS / 2, -BS / 2),
|
||
v3f( BS / 2, BS / 2, -BS / 2),
|
||
v3f( BS / 2, -BS / 2, -BS / 2),
|
||
v3f(-BS / 2, -BS / 2, -BS / 2),
|
||
};
|
||
|
||
for (v3f &vertex : vertices) {
|
||
switch (face) {
|
||
case D6D_ZP:
|
||
vertex.rotateXZBy(180); break;
|
||
case D6D_YP:
|
||
vertex.rotateYZBy( 90); break;
|
||
case D6D_XP:
|
||
vertex.rotateXZBy( 90); break;
|
||
case D6D_ZN:
|
||
vertex.rotateXZBy( 0); break;
|
||
case D6D_YN:
|
||
vertex.rotateYZBy(-90); break;
|
||
case D6D_XN:
|
||
vertex.rotateXZBy(-90); break;
|
||
}
|
||
}
|
||
drawQuad(vertices, dir);
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawGlasslikeFramedNode()
|
||
{
|
||
TileSpec tiles[6];
|
||
for (int face = 0; face < 6; face++)
|
||
getTile(g_6dirs[face], &tiles[face]);
|
||
|
||
if (!data->m_smooth_lighting)
|
||
cur_node.color = encode_light(cur_node.light, cur_node.f->light_source);
|
||
|
||
TileSpec glass_tiles[6];
|
||
for (auto &glass_tile : glass_tiles)
|
||
glass_tile = tiles[4];
|
||
|
||
// Only respect H/V merge bits when paramtype2 = "glasslikeliquidlevel" (liquid tank)
|
||
u8 param2 = (cur_node.f->param_type_2 == CPT2_GLASSLIKE_LIQUID_LEVEL) ?
|
||
cur_node.n.getParam2() : 0;
|
||
bool H_merge = !(param2 & 128);
|
||
bool V_merge = !(param2 & 64);
|
||
param2 &= 63;
|
||
|
||
static const float a = BS / 2.0f;
|
||
static const float g = a - 0.03f;
|
||
static const float b = 0.876f * (BS / 2.0f);
|
||
|
||
static const aabb3f frame_edges[FRAMED_EDGE_COUNT] = {
|
||
aabb3f( b, b, -a, a, a, a), // y+
|
||
aabb3f(-a, b, -a, -b, a, a), // y+
|
||
aabb3f( b, -a, -a, a, -b, a), // y-
|
||
aabb3f(-a, -a, -a, -b, -b, a), // y-
|
||
aabb3f( b, -a, b, a, a, a), // x+
|
||
aabb3f( b, -a, -a, a, a, -b), // x+
|
||
aabb3f(-a, -a, b, -b, a, a), // x-
|
||
aabb3f(-a, -a, -a, -b, a, -b), // x-
|
||
aabb3f(-a, b, b, a, a, a), // z+
|
||
aabb3f(-a, -a, b, a, -b, a), // z+
|
||
aabb3f(-a, -a, -a, a, -b, -b), // z-
|
||
aabb3f(-a, b, -a, a, a, -b), // z-
|
||
};
|
||
|
||
// tables of neighbor (connect if same type and merge allowed),
|
||
// checked with g_26dirs
|
||
|
||
// 1 = connect, 0 = face visible
|
||
bool nb[FRAMED_NEIGHBOR_COUNT] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
|
||
|
||
// 1 = check
|
||
static const bool check_nb_vertical [FRAMED_NEIGHBOR_COUNT] =
|
||
{0,1,0,0,1,0, 0,0,0,0, 0,0,0,0, 0,0,0,0};
|
||
static const bool check_nb_horizontal [FRAMED_NEIGHBOR_COUNT] =
|
||
{1,0,1,1,0,1, 0,0,0,0, 1,1,1,1, 0,0,0,0};
|
||
static const bool check_nb_all [FRAMED_NEIGHBOR_COUNT] =
|
||
{1,1,1,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1};
|
||
const bool *check_nb = check_nb_all;
|
||
|
||
// neighbors checks for frames visibility
|
||
if (H_merge || V_merge) {
|
||
if (!H_merge)
|
||
check_nb = check_nb_vertical; // vertical-only merge
|
||
if (!V_merge)
|
||
check_nb = check_nb_horizontal; // horizontal-only merge
|
||
content_t current = cur_node.n.getContent();
|
||
for (int i = 0; i < FRAMED_NEIGHBOR_COUNT; i++) {
|
||
if (!check_nb[i])
|
||
continue;
|
||
v3s16 n2p = blockpos_nodes + cur_node.p + g_26dirs[i];
|
||
MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
|
||
content_t n2c = n2.getContent();
|
||
if (n2c == current)
|
||
nb[i] = 1;
|
||
}
|
||
}
|
||
|
||
// edge visibility
|
||
|
||
static const u8 nb_triplet[FRAMED_EDGE_COUNT][3] = {
|
||
{1, 2, 7}, {1, 5, 6}, {4, 2, 15}, {4, 5, 14},
|
||
{2, 0, 11}, {2, 3, 13}, {5, 0, 10}, {5, 3, 12},
|
||
{0, 1, 8}, {0, 4, 16}, {3, 4, 17}, {3, 1, 9},
|
||
};
|
||
|
||
cur_node.tile = tiles[1];
|
||
for (int edge = 0; edge < FRAMED_EDGE_COUNT; edge++) {
|
||
bool edge_invisible;
|
||
if (nb[nb_triplet[edge][2]])
|
||
edge_invisible = nb[nb_triplet[edge][0]] & nb[nb_triplet[edge][1]];
|
||
else
|
||
edge_invisible = nb[nb_triplet[edge][0]] ^ nb[nb_triplet[edge][1]];
|
||
if (edge_invisible)
|
||
continue;
|
||
drawAutoLightedCuboid(frame_edges[edge]);
|
||
}
|
||
|
||
for (int face = 0; face < 6; face++) {
|
||
if (nb[face])
|
||
continue;
|
||
|
||
cur_node.tile = glass_tiles[face];
|
||
// Face at Z-
|
||
v3f vertices[4] = {
|
||
v3f(-a, a, -g),
|
||
v3f( a, a, -g),
|
||
v3f( a, -a, -g),
|
||
v3f(-a, -a, -g),
|
||
};
|
||
|
||
for (v3f &vertex : vertices) {
|
||
switch (face) {
|
||
case D6D_ZP:
|
||
vertex.rotateXZBy(180); break;
|
||
case D6D_YP:
|
||
vertex.rotateYZBy( 90); break;
|
||
case D6D_XP:
|
||
vertex.rotateXZBy( 90); break;
|
||
case D6D_ZN:
|
||
vertex.rotateXZBy( 0); break;
|
||
case D6D_YN:
|
||
vertex.rotateYZBy(-90); break;
|
||
case D6D_XN:
|
||
vertex.rotateXZBy(-90); break;
|
||
}
|
||
}
|
||
v3s16 dir = g_6dirs[face];
|
||
drawQuad(vertices, dir);
|
||
}
|
||
|
||
// Optionally render internal liquid level defined by param2
|
||
// Liquid is textured with 1 tile defined in nodedef 'special_tiles'
|
||
if (param2 > 0 && cur_node.f->param_type_2 == CPT2_GLASSLIKE_LIQUID_LEVEL &&
|
||
cur_node.f->special_tiles[0].layers[0].texture) {
|
||
// Internal liquid level has param2 range 0 .. 63,
|
||
// convert it to -0.5 .. 0.5
|
||
float vlev = (param2 / 63.0f) * 2.0f - 1.0f;
|
||
getSpecialTile(0, &cur_node.tile);
|
||
drawAutoLightedCuboid(aabb3f(-(nb[5] ? g : b),
|
||
-(nb[4] ? g : b),
|
||
-(nb[3] ? g : b),
|
||
(nb[2] ? g : b),
|
||
(nb[1] ? g : b) * vlev,
|
||
(nb[0] ? g : b)));
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawAllfacesNode()
|
||
{
|
||
static const aabb3f box(-BS / 2, -BS / 2, -BS / 2, BS / 2, BS / 2, BS / 2);
|
||
useTile(0, 0, 0);
|
||
drawAutoLightedCuboid(box);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawTorchlikeNode()
|
||
{
|
||
u8 wall = cur_node.n.getWallMounted(nodedef);
|
||
u8 tileindex = 0;
|
||
switch (wall) {
|
||
case DWM_YP: tileindex = 1; break; // ceiling
|
||
case DWM_YN: tileindex = 0; break; // floor
|
||
case DWM_S1: tileindex = 1; break; // ceiling, but rotated
|
||
case DWM_S2: tileindex = 0; break; // floor, but rotated
|
||
default: tileindex = 2; // side (or invalid, shouldn't happen)
|
||
}
|
||
useTile(tileindex, MATERIAL_FLAG_CRACK_OVERLAY, MATERIAL_FLAG_BACKFACE_CULLING);
|
||
|
||
float size = BS / 2 * cur_node.f->visual_scale;
|
||
v3f vertices[4] = {
|
||
v3f(-size, size, 0),
|
||
v3f( size, size, 0),
|
||
v3f( size, -size, 0),
|
||
v3f(-size, -size, 0),
|
||
};
|
||
|
||
for (v3f &vertex : vertices) {
|
||
switch (wall) {
|
||
case DWM_YP:
|
||
vertex.Y += -size + BS/2;
|
||
vertex.rotateXZBy(-45);
|
||
break;
|
||
case DWM_YN:
|
||
vertex.Y += size - BS/2;
|
||
vertex.rotateXZBy(45);
|
||
break;
|
||
case DWM_XP:
|
||
vertex.X += -size + BS/2;
|
||
break;
|
||
case DWM_XN:
|
||
vertex.X += -size + BS/2;
|
||
vertex.rotateXZBy(180);
|
||
break;
|
||
case DWM_ZP:
|
||
vertex.X += -size + BS/2;
|
||
vertex.rotateXZBy(90);
|
||
break;
|
||
case DWM_ZN:
|
||
vertex.X += -size + BS/2;
|
||
vertex.rotateXZBy(-90);
|
||
break;
|
||
case DWM_S1:
|
||
// same as DWM_YP, but rotated 90°
|
||
vertex.Y += -size + BS/2;
|
||
vertex.rotateXZBy(45);
|
||
break;
|
||
case DWM_S2:
|
||
// same as DWM_YN, but rotated -90°
|
||
vertex.Y += size - BS/2;
|
||
vertex.rotateXZBy(-45);
|
||
break;
|
||
}
|
||
}
|
||
drawQuad(vertices);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawSignlikeNode()
|
||
{
|
||
u8 wall = cur_node.n.getWallMounted(nodedef);
|
||
useTile(0, MATERIAL_FLAG_CRACK_OVERLAY, MATERIAL_FLAG_BACKFACE_CULLING);
|
||
static const float offset = BS / 16;
|
||
float size = BS / 2 * cur_node.f->visual_scale;
|
||
// Wall at X+ of node
|
||
v3f vertices[4] = {
|
||
v3f(BS / 2 - offset, size, size),
|
||
v3f(BS / 2 - offset, size, -size),
|
||
v3f(BS / 2 - offset, -size, -size),
|
||
v3f(BS / 2 - offset, -size, size),
|
||
};
|
||
|
||
for (v3f &vertex : vertices) {
|
||
switch (wall) {
|
||
case DWM_YP:
|
||
vertex.rotateXYBy( 90); break;
|
||
case DWM_YN:
|
||
vertex.rotateXYBy(-90); break;
|
||
case DWM_XP:
|
||
vertex.rotateXZBy( 0); break;
|
||
case DWM_XN:
|
||
vertex.rotateXZBy(180); break;
|
||
case DWM_ZP:
|
||
vertex.rotateXZBy( 90); break;
|
||
case DWM_ZN:
|
||
vertex.rotateXZBy(-90); break;
|
||
case DWM_S1:
|
||
vertex.rotateXYBy( 90); vertex.rotateXZBy(90); break;
|
||
case DWM_S2:
|
||
vertex.rotateXYBy(-90); vertex.rotateXZBy(-90); break;
|
||
}
|
||
}
|
||
drawQuad(vertices);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawPlantlikeQuad(float rotation, float quad_offset,
|
||
bool offset_top_only)
|
||
{
|
||
const f32 scale = cur_node.scale;
|
||
v3f vertices[4] = {
|
||
v3f(-scale, -BS / 2 + 2.0 * scale * cur_plant.plant_height, 0),
|
||
v3f( scale, -BS / 2 + 2.0 * scale * cur_plant.plant_height, 0),
|
||
v3f( scale, -BS / 2, 0),
|
||
v3f(-scale, -BS / 2, 0),
|
||
};
|
||
if (cur_plant.random_offset_Y) {
|
||
PseudoRandom yrng(cur_plant.face_num++
|
||
| cur_node.p.X << 16
|
||
| cur_node.p.Z << 8
|
||
| cur_node.p.Y << 24);
|
||
cur_plant.offset.Y = -BS * ((yrng.next() % 16 / 16.0) * 0.125);
|
||
}
|
||
int offset_count = offset_top_only ? 2 : 4;
|
||
for (int i = 0; i < offset_count; i++)
|
||
vertices[i].Z += quad_offset;
|
||
|
||
for (v3f &vertex : vertices) {
|
||
vertex.rotateXZBy(rotation + cur_plant.rotate_degree);
|
||
vertex += cur_plant.offset;
|
||
}
|
||
|
||
u8 wall = cur_node.n.getWallMounted(nodedef);
|
||
if (wall != DWM_YN) {
|
||
for (v3f &vertex : vertices) {
|
||
switch (wall) {
|
||
case DWM_YP:
|
||
vertex.rotateYZBy(180);
|
||
vertex.rotateXZBy(180);
|
||
break;
|
||
case DWM_XP:
|
||
vertex.rotateXYBy(90);
|
||
break;
|
||
case DWM_XN:
|
||
vertex.rotateXYBy(-90);
|
||
vertex.rotateYZBy(180);
|
||
break;
|
||
case DWM_ZP:
|
||
vertex.rotateYZBy(-90);
|
||
vertex.rotateXYBy(90);
|
||
break;
|
||
case DWM_ZN:
|
||
vertex.rotateYZBy(90);
|
||
vertex.rotateXYBy(90);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
drawQuad(vertices, v3s16(0, 0, 0), cur_plant.plant_height);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawPlantlike(bool is_rooted)
|
||
{
|
||
cur_plant.draw_style = PLANT_STYLE_CROSS;
|
||
cur_node.scale = BS / 2 * cur_node.f->visual_scale;
|
||
cur_plant.offset = v3f(0, 0, 0);
|
||
cur_plant.rotate_degree = 0.0f;
|
||
cur_plant.random_offset_Y = false;
|
||
cur_plant.face_num = 0;
|
||
cur_plant.plant_height = 1.0;
|
||
|
||
switch (cur_node.f->param_type_2) {
|
||
case CPT2_MESHOPTIONS:
|
||
cur_plant.draw_style = PlantlikeStyle(cur_node.n.param2 & MO_MASK_STYLE);
|
||
if (cur_node.n.param2 & MO_BIT_SCALE_SQRT2)
|
||
cur_node.scale *= 1.41421;
|
||
if (cur_node.n.param2 & MO_BIT_RANDOM_OFFSET) {
|
||
PseudoRandom rng(cur_node.p.X << 8 | cur_node.p.Z | cur_node.p.Y << 16);
|
||
cur_plant.offset.X = BS * ((rng.next() % 16 / 16.0) * 0.29 - 0.145);
|
||
cur_plant.offset.Z = BS * ((rng.next() % 16 / 16.0) * 0.29 - 0.145);
|
||
}
|
||
if (cur_node.n.param2 & MO_BIT_RANDOM_OFFSET_Y)
|
||
cur_plant.random_offset_Y = true;
|
||
break;
|
||
|
||
case CPT2_DEGROTATE:
|
||
case CPT2_COLORED_DEGROTATE:
|
||
cur_plant.rotate_degree = 1.5f * cur_node.n.getDegRotate(nodedef);
|
||
break;
|
||
|
||
case CPT2_LEVELED:
|
||
cur_plant.plant_height = cur_node.n.param2 / 16.0;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
if (is_rooted) {
|
||
u8 wall = cur_node.n.getWallMounted(nodedef);
|
||
switch (wall) {
|
||
case DWM_YP:
|
||
cur_plant.offset.Y += BS*2;
|
||
break;
|
||
case DWM_XN:
|
||
case DWM_XP:
|
||
case DWM_ZN:
|
||
case DWM_ZP:
|
||
cur_plant.offset.X += -BS;
|
||
cur_plant.offset.Y += BS;
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (cur_plant.draw_style) {
|
||
case PLANT_STYLE_CROSS:
|
||
drawPlantlikeQuad(46);
|
||
drawPlantlikeQuad(-44);
|
||
break;
|
||
|
||
case PLANT_STYLE_CROSS2:
|
||
drawPlantlikeQuad(91);
|
||
drawPlantlikeQuad(1);
|
||
break;
|
||
|
||
case PLANT_STYLE_STAR:
|
||
drawPlantlikeQuad(121);
|
||
drawPlantlikeQuad(241);
|
||
drawPlantlikeQuad(1);
|
||
break;
|
||
|
||
case PLANT_STYLE_HASH:
|
||
drawPlantlikeQuad( 1, BS / 4);
|
||
drawPlantlikeQuad( 91, BS / 4);
|
||
drawPlantlikeQuad(181, BS / 4);
|
||
drawPlantlikeQuad(271, BS / 4);
|
||
break;
|
||
|
||
case PLANT_STYLE_HASH2:
|
||
drawPlantlikeQuad( 1, -BS / 2, true);
|
||
drawPlantlikeQuad( 91, -BS / 2, true);
|
||
drawPlantlikeQuad(181, -BS / 2, true);
|
||
drawPlantlikeQuad(271, -BS / 2, true);
|
||
break;
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawPlantlikeNode()
|
||
{
|
||
useTile();
|
||
drawPlantlike();
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawPlantlikeRootedNode()
|
||
{
|
||
drawSolidNode();
|
||
useTile(0, MATERIAL_FLAG_CRACK_OVERLAY, 0, true);
|
||
cur_node.origin += v3f(0.0, BS, 0.0);
|
||
cur_node.p.Y++;
|
||
if (data->m_smooth_lighting) {
|
||
getSmoothLightFrame();
|
||
} else {
|
||
MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + cur_node.p);
|
||
cur_node.light = LightPair(getInteriorLight(ntop, 0, nodedef));
|
||
}
|
||
drawPlantlike(true);
|
||
cur_node.p.Y--;
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawFirelikeQuad(float rotation, float opening_angle,
|
||
float offset_h, float offset_v)
|
||
{
|
||
const f32 scale = cur_node.scale;
|
||
v3f vertices[4] = {
|
||
v3f(-scale, -BS / 2 + scale * 2, 0),
|
||
v3f( scale, -BS / 2 + scale * 2, 0),
|
||
v3f( scale, -BS / 2, 0),
|
||
v3f(-scale, -BS / 2, 0),
|
||
};
|
||
|
||
for (v3f &vertex : vertices) {
|
||
vertex.rotateYZBy(opening_angle);
|
||
vertex.Z += offset_h;
|
||
vertex.rotateXZBy(rotation);
|
||
vertex.Y += offset_v;
|
||
}
|
||
drawQuad(vertices);
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawFirelikeNode()
|
||
{
|
||
useTile();
|
||
cur_node.scale = BS / 2 * cur_node.f->visual_scale;
|
||
|
||
// Check for adjacent nodes
|
||
bool neighbors = false;
|
||
bool neighbor[6] = {0, 0, 0, 0, 0, 0};
|
||
content_t current = cur_node.n.getContent();
|
||
for (int i = 0; i < 6; i++) {
|
||
v3s16 n2p = blockpos_nodes + cur_node.p + g_6dirs[i];
|
||
MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
|
||
content_t n2c = n2.getContent();
|
||
if (n2c != CONTENT_IGNORE && n2c != CONTENT_AIR && n2c != current) {
|
||
neighbor[i] = true;
|
||
neighbors = true;
|
||
}
|
||
}
|
||
bool drawBasicFire = neighbor[D6D_YN] || !neighbors;
|
||
bool drawBottomFire = neighbor[D6D_YP];
|
||
|
||
if (drawBasicFire || neighbor[D6D_ZP])
|
||
drawFirelikeQuad(0, -10, 0.4 * BS);
|
||
else if (drawBottomFire)
|
||
drawFirelikeQuad(0, 70, 0.47 * BS, 0.484 * BS);
|
||
|
||
if (drawBasicFire || neighbor[D6D_XN])
|
||
drawFirelikeQuad(90, -10, 0.4 * BS);
|
||
else if (drawBottomFire)
|
||
drawFirelikeQuad(90, 70, 0.47 * BS, 0.484 * BS);
|
||
|
||
if (drawBasicFire || neighbor[D6D_ZN])
|
||
drawFirelikeQuad(180, -10, 0.4 * BS);
|
||
else if (drawBottomFire)
|
||
drawFirelikeQuad(180, 70, 0.47 * BS, 0.484 * BS);
|
||
|
||
if (drawBasicFire || neighbor[D6D_XP])
|
||
drawFirelikeQuad(270, -10, 0.4 * BS);
|
||
else if (drawBottomFire)
|
||
drawFirelikeQuad(270, 70, 0.47 * BS, 0.484 * BS);
|
||
|
||
if (drawBasicFire) {
|
||
drawFirelikeQuad(45, 0, 0.0);
|
||
drawFirelikeQuad(-45, 0, 0.0);
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawFencelikeNode()
|
||
{
|
||
useTile(0, 0, 0);
|
||
TileSpec tile_nocrack = cur_node.tile;
|
||
|
||
for (auto &layer : tile_nocrack.layers)
|
||
layer.material_flags &= ~MATERIAL_FLAG_CRACK;
|
||
|
||
// Put wood the right way around in the posts
|
||
TileSpec tile_rot = cur_node.tile;
|
||
tile_rot.rotation = TileRotation::R90;
|
||
|
||
static const f32 post_rad = BS / 8;
|
||
static const f32 bar_rad = BS / 16;
|
||
static const f32 bar_len = BS / 2 - post_rad;
|
||
|
||
// The post - always present
|
||
static const aabb3f post(-post_rad, -BS / 2, -post_rad,
|
||
post_rad, BS / 2, post_rad);
|
||
static const f32 postuv[24] = {
|
||
0.375, 0.375, 0.625, 0.625,
|
||
0.375, 0.375, 0.625, 0.625,
|
||
0.000, 0.000, 0.250, 1.000,
|
||
0.250, 0.000, 0.500, 1.000,
|
||
0.500, 0.000, 0.750, 1.000,
|
||
0.750, 0.000, 1.000, 1.000,
|
||
};
|
||
cur_node.tile = tile_rot;
|
||
drawAutoLightedCuboid(post, postuv);
|
||
|
||
cur_node.tile = tile_nocrack;
|
||
|
||
// Now a section of fence, +X, if there's a post there
|
||
v3s16 p2 = cur_node.p;
|
||
p2.X++;
|
||
MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
|
||
const ContentFeatures *f2 = &nodedef->get(n2);
|
||
if (f2->drawtype == NDT_FENCELIKE) {
|
||
static const aabb3f bar_x1(BS / 2 - bar_len, BS / 4 - bar_rad, -bar_rad,
|
||
BS / 2 + bar_len, BS / 4 + bar_rad, bar_rad);
|
||
static const aabb3f bar_x2(BS / 2 - bar_len, -BS / 4 - bar_rad, -bar_rad,
|
||
BS / 2 + bar_len, -BS / 4 + bar_rad, bar_rad);
|
||
static const f32 xrailuv[24] = {
|
||
0.000, 0.125, 1.000, 0.250,
|
||
0.000, 0.250, 1.000, 0.375,
|
||
0.375, 0.375, 0.500, 0.500,
|
||
0.625, 0.625, 0.750, 0.750,
|
||
0.000, 0.500, 1.000, 0.625,
|
||
0.000, 0.875, 1.000, 1.000,
|
||
};
|
||
drawAutoLightedCuboid(bar_x1, xrailuv);
|
||
drawAutoLightedCuboid(bar_x2, xrailuv);
|
||
}
|
||
|
||
// Now a section of fence, +Z, if there's a post there
|
||
p2 = cur_node.p;
|
||
p2.Z++;
|
||
n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
|
||
f2 = &nodedef->get(n2);
|
||
if (f2->drawtype == NDT_FENCELIKE) {
|
||
static const aabb3f bar_z1(-bar_rad, BS / 4 - bar_rad, BS / 2 - bar_len,
|
||
bar_rad, BS / 4 + bar_rad, BS / 2 + bar_len);
|
||
static const aabb3f bar_z2(-bar_rad, -BS / 4 - bar_rad, BS / 2 - bar_len,
|
||
bar_rad, -BS / 4 + bar_rad, BS / 2 + bar_len);
|
||
static const f32 zrailuv[24] = {
|
||
0.1875, 0.0625, 0.3125, 0.3125, // cannot rotate; stretch
|
||
0.2500, 0.0625, 0.3750, 0.3125, // for wood texture instead
|
||
0.0000, 0.5625, 1.0000, 0.6875,
|
||
0.0000, 0.3750, 1.0000, 0.5000,
|
||
0.3750, 0.3750, 0.5000, 0.5000,
|
||
0.6250, 0.6250, 0.7500, 0.7500,
|
||
};
|
||
drawAutoLightedCuboid(bar_z1, zrailuv);
|
||
drawAutoLightedCuboid(bar_z2, zrailuv);
|
||
}
|
||
}
|
||
|
||
bool MapblockMeshGenerator::isSameRail(v3s16 dir)
|
||
{
|
||
MapNode node2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + cur_node.p + dir);
|
||
if (node2.getContent() == cur_node.n.getContent())
|
||
return true;
|
||
const ContentFeatures &def2 = nodedef->get(node2);
|
||
return ((def2.drawtype == NDT_RAILLIKE) &&
|
||
(def2.getGroup(raillike_groupname) == cur_rail.raillike_group));
|
||
}
|
||
|
||
namespace {
|
||
static const v3s16 rail_direction[4] = {
|
||
v3s16( 0, 0, 1),
|
||
v3s16( 0, 0, -1),
|
||
v3s16(-1, 0, 0),
|
||
v3s16( 1, 0, 0),
|
||
};
|
||
static const int rail_slope_angle[4] = {0, 180, 90, -90};
|
||
|
||
enum RailTile {
|
||
straight,
|
||
curved,
|
||
junction,
|
||
cross,
|
||
};
|
||
struct RailDesc {
|
||
int tile_index;
|
||
int angle;
|
||
};
|
||
static const RailDesc rail_kinds[16] = {
|
||
// +x -x -z +z
|
||
//-------------
|
||
{straight, 0}, // . . . .
|
||
{straight, 0}, // . . . +Z
|
||
{straight, 0}, // . . -Z .
|
||
{straight, 0}, // . . -Z +Z
|
||
{straight, 90}, // . -X . .
|
||
{ curved, 180}, // . -X . +Z
|
||
{ curved, 270}, // . -X -Z .
|
||
{junction, 180}, // . -X -Z +Z
|
||
{straight, 90}, // +X . . .
|
||
{ curved, 90}, // +X . . +Z
|
||
{ curved, 0}, // +X . -Z .
|
||
{junction, 0}, // +X . -Z +Z
|
||
{straight, 90}, // +X -X . .
|
||
{junction, 90}, // +X -X . +Z
|
||
{junction, 270}, // +X -X -Z .
|
||
{ cross, 0}, // +X -X -Z +Z
|
||
};
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawRaillikeNode()
|
||
{
|
||
cur_rail.raillike_group = cur_node.f->getGroup(raillike_groupname);
|
||
|
||
int code = 0;
|
||
int angle;
|
||
int tile_index;
|
||
bool sloped = false;
|
||
for (int dir = 0; dir < 4; dir++) {
|
||
bool rail_above = isSameRail(rail_direction[dir] + v3s16(0, 1, 0));
|
||
if (rail_above) {
|
||
sloped = true;
|
||
angle = rail_slope_angle[dir];
|
||
}
|
||
if (rail_above ||
|
||
isSameRail(rail_direction[dir]) ||
|
||
isSameRail(rail_direction[dir] + v3s16(0, -1, 0)))
|
||
code |= 1 << dir;
|
||
}
|
||
|
||
if (sloped) {
|
||
tile_index = straight;
|
||
} else {
|
||
tile_index = rail_kinds[code].tile_index;
|
||
angle = rail_kinds[code].angle;
|
||
}
|
||
|
||
useTile(tile_index, MATERIAL_FLAG_CRACK_OVERLAY, MATERIAL_FLAG_BACKFACE_CULLING);
|
||
|
||
static const float offset = BS / 64;
|
||
static const float size = BS / 2;
|
||
float y2 = sloped ? size : -size;
|
||
v3f vertices[4] = {
|
||
v3f(-size, y2 + offset, size),
|
||
v3f( size, y2 + offset, size),
|
||
v3f( size, -size + offset, -size),
|
||
v3f(-size, -size + offset, -size),
|
||
};
|
||
if (angle)
|
||
for (v3f &vertex : vertices)
|
||
vertex.rotateXZBy(angle);
|
||
drawQuad(vertices);
|
||
}
|
||
|
||
namespace {
|
||
static const v3s16 nodebox_tile_dirs[6] = {
|
||
v3s16(0, 1, 0),
|
||
v3s16(0, -1, 0),
|
||
v3s16(1, 0, 0),
|
||
v3s16(-1, 0, 0),
|
||
v3s16(0, 0, 1),
|
||
v3s16(0, 0, -1)
|
||
};
|
||
|
||
// we have this order for some reason...
|
||
static const v3s16 nodebox_connection_dirs[6] = {
|
||
v3s16( 0, 1, 0), // top
|
||
v3s16( 0, -1, 0), // bottom
|
||
v3s16( 0, 0, -1), // front
|
||
v3s16(-1, 0, 0), // left
|
||
v3s16( 0, 0, 1), // back
|
||
v3s16( 1, 0, 0), // right
|
||
};
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawNodeboxNode()
|
||
{
|
||
TileSpec tiles[6];
|
||
for (int face = 0; face < 6; face++) {
|
||
// Handles facedir rotation for textures
|
||
getTile(nodebox_tile_dirs[face], &tiles[face]);
|
||
}
|
||
|
||
bool param2_is_rotation =
|
||
cur_node.f->param_type_2 == CPT2_COLORED_FACEDIR ||
|
||
cur_node.f->param_type_2 == CPT2_COLORED_WALLMOUNTED ||
|
||
cur_node.f->param_type_2 == CPT2_COLORED_4DIR ||
|
||
cur_node.f->param_type_2 == CPT2_FACEDIR ||
|
||
cur_node.f->param_type_2 == CPT2_WALLMOUNTED ||
|
||
cur_node.f->param_type_2 == CPT2_4DIR;
|
||
|
||
bool param2_is_level =
|
||
cur_node.f->param_type_2 == CPT2_LEVELED;
|
||
|
||
// locate possible neighboring nodes to connect to
|
||
u8 neighbors_set = 0;
|
||
u8 solid_neighbors = 0;
|
||
u8 sametype_neighbors = 0;
|
||
for (int dir = 0; dir != 6; dir++) {
|
||
u8 flag = 1 << dir;
|
||
v3s16 p2 = blockpos_nodes + cur_node.p + nodebox_tile_dirs[dir];
|
||
MapNode n2 = data->m_vmanip.getNodeNoEx(p2);
|
||
|
||
// mark neighbors that are the same node type
|
||
// and have the same rotation or higher level stored as param2
|
||
if (n2.param0 == cur_node.n.param0 &&
|
||
(!param2_is_rotation || cur_node.n.param2 == n2.param2) &&
|
||
(!param2_is_level || cur_node.n.param2 <= n2.param2))
|
||
sametype_neighbors |= flag;
|
||
|
||
// mark neighbors that are simple solid blocks
|
||
if (nodedef->get(n2).drawtype == NDT_NORMAL)
|
||
solid_neighbors |= flag;
|
||
|
||
if (cur_node.f->node_box.type == NODEBOX_CONNECTED) {
|
||
p2 = blockpos_nodes + cur_node.p + nodebox_connection_dirs[dir];
|
||
n2 = data->m_vmanip.getNodeNoEx(p2);
|
||
if (nodedef->nodeboxConnects(cur_node.n, n2, flag))
|
||
neighbors_set |= flag;
|
||
}
|
||
}
|
||
|
||
std::vector<aabb3f> boxes;
|
||
cur_node.n.getNodeBoxes(nodedef, &boxes, neighbors_set);
|
||
|
||
bool isTransparent = false;
|
||
|
||
for (const TileSpec &tile : tiles) {
|
||
if (tile.layers[0].isTransparent()) {
|
||
isTransparent = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (isTransparent) {
|
||
std::vector<float> sections;
|
||
// Preallocate 8 default splits + Min&Max for each nodebox
|
||
sections.reserve(8 + 2 * boxes.size());
|
||
|
||
for (int axis = 0; axis < 3; axis++) {
|
||
// identify sections
|
||
|
||
if (axis == 0) {
|
||
// Default split at node bounds, up to 3 nodes in each direction
|
||
for (float s = -3.5f * BS; s < 4.0f * BS; s += 1.0f * BS)
|
||
sections.push_back(s);
|
||
}
|
||
else {
|
||
// Avoid readding the same 8 default splits for Y and Z
|
||
sections.resize(8);
|
||
}
|
||
|
||
// Add edges of existing node boxes, rounded to 1E-3
|
||
for (size_t i = 0; i < boxes.size(); i++) {
|
||
sections.push_back(std::floor(boxes[i].MinEdge[axis] * 1E3) * 1E-3);
|
||
sections.push_back(std::floor(boxes[i].MaxEdge[axis] * 1E3) * 1E-3);
|
||
}
|
||
|
||
// split the boxes at recorded sections
|
||
// limit splits to avoid runaway crash if inner loop adds infinite splits
|
||
// due to e.g. precision problems.
|
||
// 100 is just an arbitrary, reasonably high number.
|
||
for (size_t i = 0; i < boxes.size() && i < 100; i++) {
|
||
aabb3f *box = &boxes[i];
|
||
for (float section : sections) {
|
||
if (box->MinEdge[axis] < section && box->MaxEdge[axis] > section) {
|
||
aabb3f copy(*box);
|
||
copy.MinEdge[axis] = section;
|
||
box->MaxEdge[axis] = section;
|
||
boxes.push_back(copy);
|
||
box = &boxes[i]; // find new address of the box in case of reallocation
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
for (auto &box : boxes) {
|
||
u8 mask = getNodeBoxMask(box, solid_neighbors, sametype_neighbors);
|
||
drawAutoLightedCuboid(box, nullptr, tiles, 6, mask);
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawMeshNode()
|
||
{
|
||
u8 facedir = 0;
|
||
scene::IMesh* mesh;
|
||
bool private_mesh; // as a grab/drop pair is not thread-safe
|
||
int degrotate = 0;
|
||
|
||
if (cur_node.f->param_type_2 == CPT2_FACEDIR ||
|
||
cur_node.f->param_type_2 == CPT2_COLORED_FACEDIR ||
|
||
cur_node.f->param_type_2 == CPT2_4DIR ||
|
||
cur_node.f->param_type_2 == CPT2_COLORED_4DIR) {
|
||
facedir = cur_node.n.getFaceDir(nodedef);
|
||
} else if (cur_node.f->param_type_2 == CPT2_WALLMOUNTED ||
|
||
cur_node.f->param_type_2 == CPT2_COLORED_WALLMOUNTED) {
|
||
// Convert wallmounted to 6dfacedir.
|
||
// When cache enabled, it is already converted.
|
||
facedir = cur_node.n.getWallMounted(nodedef);
|
||
if (!enable_mesh_cache)
|
||
facedir = wallmounted_to_facedir[facedir];
|
||
} else if (cur_node.f->param_type_2 == CPT2_DEGROTATE ||
|
||
cur_node.f->param_type_2 == CPT2_COLORED_DEGROTATE) {
|
||
degrotate = cur_node.n.getDegRotate(nodedef);
|
||
}
|
||
|
||
if (!data->m_smooth_lighting && cur_node.f->mesh_ptr[facedir] && !degrotate) {
|
||
// use cached meshes
|
||
private_mesh = false;
|
||
mesh = cur_node.f->mesh_ptr[facedir];
|
||
} else if (cur_node.f->mesh_ptr[0]) {
|
||
// no cache, clone and rotate mesh
|
||
private_mesh = true;
|
||
mesh = cloneMesh(cur_node.f->mesh_ptr[0]);
|
||
if (facedir)
|
||
rotateMeshBy6dFacedir(mesh, facedir);
|
||
else if (degrotate)
|
||
rotateMeshXZby(mesh, 1.5f * degrotate);
|
||
recalculateBoundingBox(mesh);
|
||
meshmanip->recalculateNormals(mesh, true, false);
|
||
} else
|
||
return;
|
||
|
||
int mesh_buffer_count = mesh->getMeshBufferCount();
|
||
for (int j = 0; j < mesh_buffer_count; j++) {
|
||
useTile(j);
|
||
scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
|
||
video::S3DVertex *vertices = (video::S3DVertex *)buf->getVertices();
|
||
int vertex_count = buf->getVertexCount();
|
||
|
||
if (data->m_smooth_lighting) {
|
||
// Mesh is always private here. So the lighting is applied to each
|
||
// vertex right here.
|
||
for (int k = 0; k < vertex_count; k++) {
|
||
video::S3DVertex &vertex = vertices[k];
|
||
vertex.Color = blendLightColor(vertex.Pos, vertex.Normal);
|
||
vertex.Pos += cur_node.origin;
|
||
}
|
||
collector->append(cur_node.tile, vertices, vertex_count,
|
||
buf->getIndices(), buf->getIndexCount());
|
||
} else {
|
||
// Don't modify the mesh, it may not be private here.
|
||
// Instead, let the collector process colors, etc.
|
||
collector->append(cur_node.tile, vertices, vertex_count,
|
||
buf->getIndices(), buf->getIndexCount(), cur_node.origin,
|
||
cur_node.color, cur_node.f->light_source);
|
||
}
|
||
}
|
||
if (private_mesh)
|
||
mesh->drop();
|
||
}
|
||
|
||
// also called when the drawtype is known but should have been pre-converted
|
||
void MapblockMeshGenerator::errorUnknownDrawtype()
|
||
{
|
||
infostream << "Got drawtype " << cur_node.f->drawtype << std::endl;
|
||
FATAL_ERROR("Unknown drawtype");
|
||
}
|
||
|
||
void MapblockMeshGenerator::drawNode()
|
||
{
|
||
switch (cur_node.f->drawtype) {
|
||
case NDT_AIRLIKE: // Not drawn at all
|
||
return;
|
||
case NDT_LIQUID:
|
||
case NDT_NORMAL: // solid nodes don’t need the usual setup
|
||
drawSolidNode();
|
||
return;
|
||
default:
|
||
break;
|
||
}
|
||
cur_node.origin = intToFloat(cur_node.p, BS);
|
||
if (data->m_smooth_lighting)
|
||
getSmoothLightFrame();
|
||
else
|
||
cur_node.light = LightPair(getInteriorLight(cur_node.n, 0, nodedef));
|
||
switch (cur_node.f->drawtype) {
|
||
case NDT_FLOWINGLIQUID: drawLiquidNode(); break;
|
||
case NDT_GLASSLIKE: drawGlasslikeNode(); break;
|
||
case NDT_GLASSLIKE_FRAMED: drawGlasslikeFramedNode(); break;
|
||
case NDT_ALLFACES: drawAllfacesNode(); break;
|
||
case NDT_TORCHLIKE: drawTorchlikeNode(); break;
|
||
case NDT_SIGNLIKE: drawSignlikeNode(); break;
|
||
case NDT_PLANTLIKE: drawPlantlikeNode(); break;
|
||
case NDT_PLANTLIKE_ROOTED: drawPlantlikeRootedNode(); break;
|
||
case NDT_FIRELIKE: drawFirelikeNode(); break;
|
||
case NDT_FENCELIKE: drawFencelikeNode(); break;
|
||
case NDT_RAILLIKE: drawRaillikeNode(); break;
|
||
case NDT_NODEBOX: drawNodeboxNode(); break;
|
||
case NDT_MESH: drawMeshNode(); break;
|
||
default: errorUnknownDrawtype(); break;
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::generate()
|
||
{
|
||
for (cur_node.p.Z = 0; cur_node.p.Z < data->side_length; cur_node.p.Z++)
|
||
for (cur_node.p.Y = 0; cur_node.p.Y < data->side_length; cur_node.p.Y++)
|
||
for (cur_node.p.X = 0; cur_node.p.X < data->side_length; cur_node.p.X++) {
|
||
cur_node.n = data->m_vmanip.getNodeNoEx(blockpos_nodes + cur_node.p);
|
||
cur_node.f = &nodedef->get(cur_node.n);
|
||
drawNode();
|
||
}
|
||
}
|
||
|
||
void MapblockMeshGenerator::renderSingle(content_t node, u8 param2)
|
||
{
|
||
cur_node.p = {0, 0, 0};
|
||
cur_node.n = MapNode(node, 0xff, param2);
|
||
cur_node.f = &nodedef->get(cur_node.n);
|
||
drawNode();
|
||
}
|