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Adjust magic number to prevent z-fighting.

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yunfeibai
2016-12-06 13:36:41 -08:00
parent 08c9bf88e9
commit 08b449f149
1 changed files with 1 additions and 1 deletions
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examples/TinyRenderer/TinyRenderer.cpp
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@@ -126,7 +126,7 @@ struct Shader : public IShader {
int index_x = b3Max(0, b3Min(m_width-1, int(p[0]))); int index_x = b3Max(0, b3Min(m_width-1, int(p[0])));
int index_y = b3Max(0, b3Min(m_height-1, int(p[1]))); int index_y = b3Max(0, b3Min(m_height-1, int(p[1])));
int idx = index_x + index_y*m_width; // index in the shadowbuffer array int idx = index_x + index_y*m_width; // index in the shadowbuffer array
float shadow = 0.8+0.2*(m_shadowBuffer->at(idx)<-depth+0.2); // magic coeff to avoid z-fighting float shadow = 0.8+0.2*(m_shadowBuffer->at(idx)<-depth+0.05); // magic coeff to avoid z-fighting
Vec3f bn = (varying_nrm*bar).normalize(); Vec3f bn = (varying_nrm*bar).normalize();
Vec2f uv = varying_uv*bar; Vec2f uv = varying_uv*bar;