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Few fixes normal mapping code.

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Joey de Vries
2020-05-26 17:39:54 +02:00
parent 42eeb4a01f
commit bc75e9bae0
1 changed files with 1 additions and 5 deletions
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6
src/5.advanced_lighting/4.normal_mapping/normal_mapping.cpp
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@@ -180,17 +180,15 @@ void renderQuad()
glm::vec2 deltaUV1 = uv2 - uv1;
glm::vec2 deltaUV2 = uv3 - uv1;
GLfloat f = 1.0f / (deltaUV1.x * deltaUV2.y - deltaUV2.x * deltaUV1.y);
float f = 1.0f / (deltaUV1.x * deltaUV2.y - deltaUV2.x * deltaUV1.y);
tangent1.x = f * (deltaUV2.y * edge1.x - deltaUV1.y * edge2.x);
tangent1.y = f * (deltaUV2.y * edge1.y - deltaUV1.y * edge2.y);
tangent1.z = f * (deltaUV2.y * edge1.z - deltaUV1.y * edge2.z);
tangent1 = glm::normalize(tangent1);
bitangent1.x = f * (-deltaUV2.x * edge1.x + deltaUV1.x * edge2.x);
bitangent1.y = f * (-deltaUV2.x * edge1.y + deltaUV1.x * edge2.y);
bitangent1.z = f * (-deltaUV2.x * edge1.z + deltaUV1.x * edge2.z);
bitangent1 = glm::normalize(bitangent1);
// triangle 2
// ----------
@@ -204,13 +202,11 @@ void renderQuad()
tangent2.x = f * (deltaUV2.y * edge1.x - deltaUV1.y * edge2.x);
tangent2.y = f * (deltaUV2.y * edge1.y - deltaUV1.y * edge2.y);
tangent2.z = f * (deltaUV2.y * edge1.z - deltaUV1.y * edge2.z);
tangent2 = glm::normalize(tangent2);
bitangent2.x = f * (-deltaUV2.x * edge1.x + deltaUV1.x * edge2.x);
bitangent2.y = f * (-deltaUV2.x * edge1.y + deltaUV1.x * edge2.y);
bitangent2.z = f * (-deltaUV2.x * edge1.z + deltaUV1.x * edge2.z);
bitangent2 = glm::normalize(bitangent2);
float quadVertices[] = {