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Add back-face culling

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duarteapcoelho 2022-11-16 14:58:28 +00:00
parent 9877547fe1
commit 0b11ffac4c
1 changed files with 4 additions and 0 deletions
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4
src/rasterizer.cpp
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@ -114,6 +114,10 @@ namespace Rasterizer {
vec3<int> p1 = toScreen(p1_d);
vec3<int> p2 = toScreen(p2_d);
if(dot(mat4::toMat3(model->viewMatrix) * mat4::toMat3(model->modelMatrix) * triangle.normal, vec3<fp>(0, 0, 1)) > 0){
return;
}
int minY = max(min(min(p0.y, p1.y), p2.y), 0);
int maxY = min(max(max(p0.y, p1.y), p2.y), RENDER_HEIGHT);
fp z = (p0.z + p1.z + p2.z) / 3;