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4a96885323
Move tangent space generation to the vertex shaders Support diffuse parallax when no normal map is present Don't use diffuse parallax if there's no diffuse map Generalize normal-to-view conversion Rewrite parallax
14 lines
418 B
GLSL
14 lines
418 B
GLSL
varying mat3 normalToViewMatrix;
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mat3 generateTangentSpace(vec4 tangent, vec3 normal)
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{
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vec3 normalizedNormal = normalize(normal);
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vec3 normalizedTangent = normalize(tangent.xyz);
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vec3 binormal = cross(normalizedTangent, normalizedNormal) * tangent.w;
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return mat3(normalizedTangent, binormal, normalizedNormal);
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}
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vec3 normalToView(vec3 normal)
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{
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return normalize(normalToViewMatrix * normal);
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}
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