programming

Creating a Physically Based Rendering Shader 2018-11-29

While trying to convert a 3d model that was made for Physically Based Rendering for use in the Source Engine 2013. I decided to look at the feasability of implementing a shader to use the model as is.

Other implementations:

• Unreal Engine 4
• Example HLSL PBR implementation
• Source Engine non-PBR shading
• Vulcan PBR implementation

Lighting

• Cook-Torrance
• Using environment maps as indirect illumination
• Specular IBL
• Program to compute the BRDF integration map

Normal mapping

• Tangent Basis
• Explanation on how normal mapping works
• MikktSpace source code
• Difference between vertex shader and pixel shader tangent basis calculation
• Pixel shader tangent basis calculation source code
• Unity tangent basis source code

Other links

• Unreal Engine 4 texture naming convention
• Parallax mapping on environment maps
• Someone with the same idea as me, lots of links on physically based rendering
• Examples of the different parameters