mirror of
https://github.com/aharabada/glitchy-engine-beef.git
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Simon Lübeß
c1a87ed946
+ AssetHierarchy: Exposed RootNode
+ ContentBrowserWindow: Fixed Empty Folder not being Leaf-Node
+ TreeNode: Added IsParentOf, IsChildOf and IsInSubtree.
+ Fixed InternalDeleteTreeAndChildren for null trees
28 lines
1.1 KiB
HLSL
28 lines
1.1 KiB
HLSL
#define PI 3.14159265358979323846f
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/**
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* Calculates the diffuse lighting of a lambertian surface
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* @param diffuseColor (rho/ pi) * C_diffuse
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* @param illuminanceColor The product of the "brightness" and the light color.
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* @param n_dot_l The dot product of the surface normal and the light direction.
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*/
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float3 CalculateDiffuseReflection(float3 diffuseColor, float3 illuminanceColor, float3 n_dot_l)
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{
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float3 directColor = illuminanceColor * saturate(n_dot_l);
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return (directColor * diffuseColor);
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}
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/**
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* Calculates the blinn-phong-specular reflection
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* @param n The normalized surface normal
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* @param h The normalized half way vector (nrm(l + v))
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* @param alpha The reflections alpha-value
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* @param illuminanceColor The product of the "brightness" and the light color.
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* @param n_dot_l The dot product of the surface normal and the light direction.
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*/
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float3 CalculateSpecularReflection(float3 n, float3 h, float alpha, float3 illuminanceColor, float n_dot_l)
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{
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float highlight = pow(saturate(dot(n, h)), alpha) * float(n_dot_l > 0.0);
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return (illuminanceColor * highlight); // Todo: * SpecularColor
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} |