luanti-org/luanti
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Try to add a bit of topside brightness when not using shaders

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This commit is contained in:
Perttu Ahola
2012-12-02 23:47:27 +02:00
parent ec54e35757
commit 07632b7d69
1 changed files with 26 additions and 0 deletions
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26
src/mapblock_mesh.cpp
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@@ -32,6 +32,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "settings.h"
#include "util/directiontables.h"
float srgb_linear_multiply(float f, float m, float max)
{
f = f * f; // SRGB -> Linear
f *= m;
f = sqrt(f); // Linear -> SRGB
if(f > max)
f = max;
return f;
}
/*
MeshMakeData
*/
@@ -1071,11 +1081,19 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data):
for(u32 j = 0; j < p.vertices.size(); j++)
{
video::SColor &vc = p.vertices[j].Color;
// Set initial real color and store for later updates
u8 day = vc.getRed();
u8 night = vc.getGreen();
finalColorBlend(vc, day, night, 1000);
if(day != night)
m_daynight_diffs[i][j] = std::make_pair(day, night);
// Brighten topside (no shaders)
if(p.vertices[j].Normal.Y > 0.5)
{
vc.setRed (srgb_linear_multiply(vc.getRed(), 1.3, 255.0));
vc.setGreen(srgb_linear_multiply(vc.getGreen(), 1.3, 255.0));
vc.setBlue (srgb_linear_multiply(vc.getBlue(), 1.3, 255.0));
}
}
}
@@ -1229,6 +1247,14 @@ bool MapBlockMesh::animate(bool faraway, float time, int crack, u32 daynight_rat
u8 night = j->second.second;
finalColorBlend(vertices[vertexIndex].Color,
day, night, daynight_ratio);
// Brighten topside (no shaders)
if(vertices[vertexIndex].Normal.Y > 0.5)
{
video::SColor &vc = vertices[vertexIndex].Color;
vc.setRed (srgb_linear_multiply(vc.getRed(), 1.3, 255.0));
vc.setGreen(srgb_linear_multiply(vc.getGreen(), 1.3, 255.0));
vc.setBlue (srgb_linear_multiply(vc.getBlue(), 1.3, 255.0));
}
}
}
m_last_daynight_ratio = daynight_ratio;