Useful pages

• CG Standard Library Documentation: https://developer.download.nvidia.com/cg/index_stdlib.html
• Built in Shader Variables: https://docs.unity3d.com/6000.1/Documentation/Manual/SL-UnityShaderVariables.html
• Built in Shader Functions: https://docs.unity3d.com/6000.1/Documentation/Manual/SL-BuiltinFunctions.html

Useful code snippets

Rot2D Matrix

float2x2 rot2D(float rad) {  return float2x2(cos(rad), -sin(rad), sin(rad), cos(rad));}

Example

Rotation around y axis

v.vertex.xz = mul(rot2D(x), v.vertex.xz);

Getting Camera position VR + Normal

float3 camera;
#ifdef USING_STEREO_MATRICES
    camera = (unity_StereoWorldSpaceCameraPos[0] + unity_StereoWorldSpaceCameraPos[1]) * .5; // VR Camera average
#else
    camera = _WorldSpaceCameraPos.xyz; // Use the fallback for non-stereo
#endif

GC Include path

C:\\Program Files\\Unity\\Hub\\Editor\\2022.3.22f1\\Editor\\Data\\CGIncludes