feat: static branching instead of macros

package/Shaders/Common/Permutation.hlsl

@@ -0,0 +1,46 @@
+
+
+#define _Glowmap 2
+#define _Hair 6
+
+// LightingShaderFlags
+#define _VC (1 << 0)
+#define _Skinned (1 << 1)
+#define _ModelSpaceNormals (1 << 2)
+// flags 3 to 8 are unused
+#define _Specular (1 << 9)
+#define _SoftLighting (1 << 10)
+#define _RimLighting (1 << 11)
+#define _BackLighting (1 << 12)
+#define _ShadowDir (1 << 13)
+#define _DefShadow (1 << 14)
+#define _ProjectedUV (1 << 15)
+// (HAIR technique only)
+#define _DepthWriteDecals (1 << 15)
+#define _AnisoLighting (1 << 16)
+#define _AmbientSpecular (1 << 17)
+#define _WorldMap (1 << 18)
+#define _BaseObjectIsSnow (1 << 19)
+#define _DoAlphaTest (1 << 20)
+#define _Snow (1 << 21)
+#define _CharacterLight (1 << 22)
+#define _AdditionalAlphaMask (1 << 23)
+
+#define _NormalTexCoord (1 << 1)
+#define _Reflections (1 << 2)
+#define _Refractions (1 << 3)
+#define _Depth (1 << 4)
+#define _Interior (1 << 5)
+#define _Wading (1 << 6)
+#define _VertexAlphaDepth (1 << 7)
+#define _Cubemap (1 << 8)
+#define _Flowmap (1 << 9)
+#define _BlendNormals (1 << 10)
+
+struct PerShader
+{
+	uint VertexShaderDescriptor;
+	uint PixelShaderDescriptor;
+};
+
+StructuredBuffer<PerShader> shaderDescriptors : register(t127);