minetest
/
minetest
mirror of https://github.com/minetest/minetest.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Added an experimental "far view" thing. Doesn't work exactly like it should and not suitable for real use yet, and might never be.

This commit is contained in:
Perttu Ahola 2011-06-07 22:08:16 +03:00
parent fdee31abf1
commit 72e742c24e
7 changed files with 386 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
minetest.conf.example
View File

@ -58,6 +58,12 @@
# Whether to fog out the end of the visible area
#enable_fog = true
# Enable/disable clouds
#enable_clouds = true
# Experimental
#enable_farmesh = false
# Enable a bit lower water surface; disable for speed
#new_style_water = true

1
src/CMakeLists.txt
View File

@ -85,6 +85,7 @@ set(common_SRCS
# Client sources
set(minetest_SRCS
${common_SRCS}
farmesh.cpp
keycode.cpp
clouds.cpp
clientobject.cpp

2
src/clouds.cpp
View File

@ -58,8 +58,8 @@ void Clouds::OnRegisterSceneNode()
{
if(IsVisible)
{
SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
//SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
}
ISceneNode::OnRegisterSceneNode();

3
src/defaultsettings.cpp
View File

@ -61,11 +61,12 @@ void set_default_settings()
g_settings.setDefault("enable_texture_atlas", "true");
g_settings.setDefault("texture_path", "");
g_settings.setDefault("video_driver", "opengl");
g_settings.setDefault("free_move", "false");
g_settings.setDefault("continuous_forward", "false");
g_settings.setDefault("fast_move", "false");
g_settings.setDefault("invert_mouse", "false");
g_settings.setDefault("enable_farmesh", "false");
g_settings.setDefault("enable_clouds", "true");
// Server stuff
g_settings.setDefault("enable_experimental", "false");

253
src/farmesh.cpp Normal file
View File

@ -0,0 +1,253 @@
/*
Part of Minetest-c55
Copyright (C) 2011 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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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.
*/
/*
A quick messy implementation of terrain rendering for a long
distance according to map seed
*/
#include "farmesh.h"
#include "constants.h"
#include "debug.h"
#include "noise.h"
#include "map.h"
FarMesh::FarMesh(
scene::ISceneNode* parent,
scene::ISceneManager* mgr,
s32 id,
u64 seed
):
scene::ISceneNode(parent, mgr, id),
m_seed(seed),
m_camera_pos(0,0),
m_time(0)
{
dstream<<__FUNCTION_NAME<<std::endl;
m_material.setFlag(video::EMF_LIGHTING, false);
m_material.setFlag(video::EMF_BACK_FACE_CULLING, true);
m_material.setFlag(video::EMF_BILINEAR_FILTER, false);
m_material.setFlag(video::EMF_FOG_ENABLE, false);
//m_material.setFlag(video::EMF_ANTI_ALIASING, true);
//m_material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
m_box = core::aabbox3d<f32>(-BS*1000000,-BS*31000,-BS*1000000,
BS*1000000,BS*31000,BS*1000000);
}
FarMesh::~FarMesh()
{
dstream<<__FUNCTION_NAME<<std::endl;
}
void FarMesh::OnRegisterSceneNode()
{
if(IsVisible)
{
//SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
//SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
SceneManager->registerNodeForRendering(this, scene::ESNRP_SKY_BOX);
}
ISceneNode::OnRegisterSceneNode();
}
#define MYROUND(x) (x > 0.0 ? (int)x : (int)x - 1)
// Temporary hack
core::map<v2s16, float> g_heights;
float ground_height(u64 seed, v2s16 p2d)
{
core::map<v2s16, float>::Node *n = g_heights.find(p2d);
if(n)
return n->getValue();
float avg_mud_amount = 4;
float gh = BS*base_rock_level_2d(seed, p2d) + avg_mud_amount*BS;
//gh *= 10;
g_heights[p2d] = gh;
return gh;
}
void FarMesh::render()
{
video::IVideoDriver* driver = SceneManager->getVideoDriver();
/*if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_TRANSPARENT)
return;*/
/*if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_SOLID)
return;*/
if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_SKY_BOX)
return;
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
driver->setMaterial(m_material);
const s16 grid_radius_i = 12;
const float grid_size = BS*50;
const v2f grid_speed(-BS*0, 0);
// Position of grid noise origin in world coordinates
v2f world_grid_origin_pos_f(0,0);
// Position of grid noise origin from the camera
v2f grid_origin_from_camera_f = world_grid_origin_pos_f - m_camera_pos;
// The center point of drawing in the noise
v2f center_of_drawing_in_noise_f = -grid_origin_from_camera_f;
// The integer center point of drawing in the noise
v2s16 center_of_drawing_in_noise_i(
MYROUND(center_of_drawing_in_noise_f.X / grid_size),
MYROUND(center_of_drawing_in_noise_f.Y / grid_size)
);
// The world position of the integer center point of drawing in the noise
v2f world_center_of_drawing_in_noise_f = v2f(
center_of_drawing_in_noise_i.X * grid_size,
center_of_drawing_in_noise_i.Y * grid_size
) + world_grid_origin_pos_f;
for(s16 zi=-grid_radius_i; zi<grid_radius_i; zi++)
for(s16 xi=-grid_radius_i; xi<grid_radius_i; xi++)
{
v2s16 p_in_noise_i(
xi+center_of_drawing_in_noise_i.X,
zi+center_of_drawing_in_noise_i.Y
);
/*if((p_in_noise_i.X + p_in_noise_i.Y)%2==0)
continue;*/
/*if((p_in_noise_i.X/2 + p_in_noise_i.Y/2)%2==0)
continue;*/
v2f p0 = v2f(xi,zi)*grid_size + world_center_of_drawing_in_noise_f;
/*double noise[4];
double d = 100*BS;
noise[0] = d*noise2d_perlin(
(float)(p_in_noise_i.X+0)*grid_size/BS/100,
(float)(p_in_noise_i.Y+0)*grid_size/BS/100,
m_seed, 3, 0.5);
noise[1] = d*noise2d_perlin(
(float)(p_in_noise_i.X+0)*grid_size/BS/100,
(float)(p_in_noise_i.Y+1)*grid_size/BS/100,
m_seed, 3, 0.5);
noise[2] = d*noise2d_perlin(
(float)(p_in_noise_i.X+1)*grid_size/BS/100,
(float)(p_in_noise_i.Y+1)*grid_size/BS/100,
m_seed, 3, 0.5);
noise[3] = d*noise2d_perlin(
(float)(p_in_noise_i.X+1)*grid_size/BS/100,
(float)(p_in_noise_i.Y+0)*grid_size/BS/100,
m_seed, 3, 0.5);*/
float noise[4];
noise[0] = ground_height(m_seed, v2s16(
(p_in_noise_i.X+0)*grid_size/BS,
(p_in_noise_i.Y+0)*grid_size/BS));
noise[1] = ground_height(m_seed, v2s16(
(p_in_noise_i.X+0)*grid_size/BS,
(p_in_noise_i.Y+1)*grid_size/BS));
noise[2] = ground_height(m_seed, v2s16(
(p_in_noise_i.X+1)*grid_size/BS,
(p_in_noise_i.Y+1)*grid_size/BS));
noise[3] = ground_height(m_seed, v2s16(
(p_in_noise_i.X+1)*grid_size/BS,
(p_in_noise_i.Y+0)*grid_size/BS));
float h_min = BS*65535;
float h_max = -BS*65536;
for(u32 i=0; i<4; i++)
{
if(noise[i] < h_min)
h_min = noise[i];
if(noise[i] > h_max)
h_max = noise[i];
}
float steepness = (h_max - h_min)/grid_size;
float h_avg = (noise[0]+noise[1]+noise[2]+noise[3])/4.0;
float light_f = noise[0]+noise[1]-noise[2]-noise[3];
light_f /= 100;
if(light_f < -1.0) light_f = -1.0;
if(light_f > 1.0) light_f = 1.0;
//light_f += 1.0;
//light_f /= 2.0;
v2f p1 = p0 + v2f(1,1)*grid_size;
video::SColor c;
// Detect water
if(h_avg < WATER_LEVEL*BS && h_max < (WATER_LEVEL+5)*BS)
{
c = video::SColor(128,59,86,146);
/*// Set to water level
for(u32 i=0; i<4; i++)
{
if(noise[i] < BS*WATER_LEVEL)
noise[i] = BS*WATER_LEVEL;
}*/
light_f = 0;
}
else if(steepness > 2.0)
c = video::SColor(128,128,128,128);
else
c = video::SColor(128,107,134,51);
// Set to water level
for(u32 i=0; i<4; i++)
{
if(noise[i] < BS*WATER_LEVEL)
noise[i] = BS*WATER_LEVEL;
}
float b = m_brightness + light_f*0.1*m_brightness;
if(b < 0) b = 0;
if(b > 2) b = 2;
c = video::SColor(128, b*c.getRed(), b*c.getGreen(), b*c.getBlue());
video::S3DVertex vertices[4] =
{
video::S3DVertex(p0.X,noise[0],p0.Y, 0,0,0, c, 0,1),
video::S3DVertex(p0.X,noise[1],p1.Y, 0,0,0, c, 1,1),
video::S3DVertex(p1.X,noise[2],p1.Y, 0,0,0, c, 1,0),
video::S3DVertex(p1.X,noise[3],p0.Y, 0,0,0, c, 0,0),
};
u16 indices[] = {0,1,2,2,3,0};
driver->drawVertexPrimitiveList(vertices, 4, indices, 2,
video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT);
}
driver->clearZBuffer();
}
void FarMesh::step(float dtime)
{
m_time += dtime;
}
void FarMesh::update(v2f camera_p, float brightness)
{
m_camera_pos = camera_p;
m_brightness = brightness;
}

84
src/farmesh.h Normal file
View File

@ -0,0 +1,84 @@
/*
Part of Minetest-c55
Copyright (C) 2010-2011 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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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.
*/
#ifndef FARMESH_HEADER
#define FARMESH_HEADER
/*
A quick messy implementation of terrain rendering for a long
distance according to map seed
*/
#include "common_irrlicht.h"
class FarMesh : public scene::ISceneNode
{
public:
FarMesh(
scene::ISceneNode* parent,
scene::ISceneManager* mgr,
s32 id,
u64 seed
);
~FarMesh();
/*
ISceneNode methods
*/
virtual void OnRegisterSceneNode();
virtual void render();
virtual const core::aabbox3d<f32>& getBoundingBox() const
{
return m_box;
}
virtual u32 getMaterialCount() const
{
return 1;
}
virtual video::SMaterial& getMaterial(u32 i)
{
return m_material;
}
/*
Other stuff
*/
void step(float dtime);
void update(v2f camera_p, float brightness);
private:
video::SMaterial m_material;
core::aabbox3d<f32> m_box;
float m_cloud_y;
float m_brightness;
u32 m_seed;
v2f m_camera_pos;
float m_time;
};
#endif

42
src/game.cpp
View File

@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "config.h"
#include "clouds.h"
#include "keycode.h"
#include "farmesh.h"
/*
Setting this to 1 enables a special camera mode that forces
@ -595,6 +596,10 @@ void update_skybox(video::IVideoDriver* driver,
skybox->remove();
}
// Disable skybox if FarMesh is enabled
if(g_settings.getBool("enable_farmesh"))
return;
if(brightness >= 0.5)
{
skybox = smgr->addSkyBoxSceneNode(
@ -815,8 +820,21 @@ void the_game(
float cloud_height = BS*100;
Clouds *clouds = NULL;
clouds = new Clouds(smgr->getRootSceneNode(), smgr, -1,
cloud_height, time(0));
if(g_settings.getBool("enable_clouds"))
{
clouds = new Clouds(smgr->getRootSceneNode(), smgr, -1,
cloud_height, time(0));
}
/*
FarMesh
*/
FarMesh *farmesh = NULL;
if(g_settings.getBool("enable_farmesh"))
{
farmesh = new FarMesh(smgr->getRootSceneNode(), smgr, -1, client.getMapSeed());
}
/*
Move into game
@ -1789,6 +1807,16 @@ void the_game(
0.05+brightness*0.95);
}
/*
Update farmesh (TODO: Remove from here)
*/
if(farmesh)
{
farmesh->step(dtime);
farmesh->update(v2f(player_position.X, player_position.Z),
0.05+brightness*0.95);
}
// Store brightness value
old_brightness = brightness;
@ -1999,6 +2027,13 @@ void the_game(
//driver->beginScene(false, true, bgcolor);
beginscenetime = timer.stop(true);
}
/*
Draw farmesh before everything else
*/
{
//farmesh->render();
}
//timer3.stop();
@ -2131,7 +2166,8 @@ void the_game(
/*
Drop stuff
*/
clouds->drop();
if(clouds)
clouds->drop();
/*
Draw a "shutting down" screen, which will be shown while the map