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Change loop in barycentric coordinates calculation function

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Abdelrahman Said 2024-08-26 16:41:37 +01:00
parent e905fed7a5
commit 0e6235da9a
1 changed files with 2 additions and 2 deletions
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4
src/model/render.c
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@ -195,7 +195,7 @@ internal TriangleBBox get_triangle_bbox(const Image *img,
internal V3f get_barycentric_coords(V3f a, V3f b, V3f c, V3f p) { internal V3f get_barycentric_coords(V3f a, V3f b, V3f c, V3f p) {
V3f s[2]; V3f s[2];
for (int i = 2; i--;) { for (u64 i = 0; i < 2; ++i) {
s[i].x = c.elements[i] - a.elements[i]; s[i].x = c.elements[i] - a.elements[i];
s[i].y = b.elements[i] - a.elements[i]; s[i].y = b.elements[i] - a.elements[i];
s[i].z = a.elements[i] - p.elements[i]; s[i].z = a.elements[i] - p.elements[i];
@ -206,7 +206,7 @@ internal V3f get_barycentric_coords(V3f a, V3f b, V3f c, V3f p) {
return (V3f){-1.0f, 1.0f, 1.0f}; return (V3f){-1.0f, 1.0f, 1.0f};
} }
return (V3f){1.f - (u.x + u.y) / u.z, u.y / u.z, u.x / u.z}; return (V3f){1.0f - (u.x + u.y) / u.z, u.y / u.z, u.x / u.z};
} }
internal V3f get_viewport_vertex(const V3f *vertex, const Image *img) { internal V3f get_viewport_vertex(const V3f *vertex, const Image *img) {