Overhaul PBR overlay

Add second PBR overlay and fix masking behavior.

Also elide keywords based on shader variant. This should improve
performance.

1 files changed, 115 insertions, 24 deletions

diff --git a/globals.cginc b/globals.cginc
index 4d80955..6e56eac 100644
--- a/globals.cginc
+++ b/globals.cginc
@@ -3,12 +3,26 @@
 
 #include "AutoLight.cginc"
 
+SamplerState linear_repeat_s;
+
 float4 _BaseColor;
 float _Metallic;
 float _Roughness;
+float _Tex_NormalStr;
+float _NormalStr;
+
+float _Min_Brightness;
+float _Max_Brightness;
+
+float _Mesh_Normals_Mode;
+float _Flatten_Mesh_Normals_Str;
+float _Confabulate_Normals;
+
 
+#if defined(_BASECOLOR_MAP)
 texture2D _BaseColorTex;
 float4 _BaseColorTex_ST;
+#endif
 texture2D _NormalTex;
 float4 _NormalTex_ST;
 texture2D _MetallicTex;
@@ -16,43 +30,97 @@ float4 _MetallicTex_ST;
 texture2D _RoughnessTex;
 float4 _RoughnessTex_ST;
 
-float4 _PBR_Overlay_BaseColor;
-float _PBR_Overlay_Metallic;
-float _PBR_Overlay_Roughness;
-texture2D _PBR_Overlay_BaseColorTex;
-float4 _PBR_Overlay_BaseColorTex_ST;
-texture2D _PBR_Overlay_NormalTex;
-float4 _PBR_Overlay_NormalTex_ST;
-texture2D _PBR_Overlay_MetallicTex;
-float4 _PBR_Overlay_MetallicTex_ST;
-texture2D _PBR_Overlay_RoughnessTex;
-float4 _PBR_Overlay_RoughnessTex_ST;
-float _PBR_Overlay_Tex_NormalStr;
-texture2D _PBR_Overlay_Mask;
+#if defined(_PBR_OVERLAY0)
+float4 _PBR_Overlay0_BaseColor;
+float _PBR_Overlay0_Metallic;
+float _PBR_Overlay0_Roughness;
+texture2D _PBR_Overlay0_BaseColorTex;
+float4 _PBR_Overlay0_BaseColorTex_ST;
+texture2D _PBR_Overlay0_NormalTex;
+float4 _PBR_Overlay0_NormalTex_ST;
+texture2D _PBR_Overlay0_MetallicTex;
+float4 _PBR_Overlay0_MetallicTex_ST;
+texture2D _PBR_Overlay0_RoughnessTex;
+float4 _PBR_Overlay0_RoughnessTex_ST;
+float _PBR_Overlay0_Tex_NormalStr;
+texture2D _PBR_Overlay0_Mask;
+float _PBR_Overlay0_Mask_Invert;
+#endif
 
-texture2D _EmissionTex;
-float _EmissionStrength;
+#if defined(_PBR_OVERLAY1)
+float4 _PBR_Overlay1_BaseColor;
+float _PBR_Overlay1_Metallic;
+float _PBR_Overlay1_Roughness;
+texture2D _PBR_Overlay1_BaseColorTex;
+float4 _PBR_Overlay1_BaseColorTex_ST;
+texture2D _PBR_Overlay1_NormalTex;
+float4 _PBR_Overlay1_NormalTex_ST;
+texture2D _PBR_Overlay1_MetallicTex;
+float4 _PBR_Overlay1_MetallicTex_ST;
+texture2D _PBR_Overlay1_RoughnessTex;
+float4 _PBR_Overlay1_RoughnessTex_ST;
+float _PBR_Overlay1_Tex_NormalStr;
+texture2D _PBR_Overlay1_Mask;
+float _PBR_Overlay1_Mask_Invert;
+#endif
 
-SamplerState linear_repeat_s;
+#if defined(_PBR_OVERLAY2)
+float4 _PBR_Overlay2_BaseColor;
+float _PBR_Overlay2_Metallic;
+float _PBR_Overlay2_Roughness;
+texture2D _PBR_Overlay2_BaseColorTex;
+float4 _PBR_Overlay2_BaseColorTex_ST;
+texture2D _PBR_Overlay2_NormalTex;
+float4 _PBR_Overlay2_NormalTex_ST;
+texture2D _PBR_Overlay2_MetallicTex;
+float4 _PBR_Overlay2_MetallicTex_ST;
+texture2D _PBR_Overlay2_RoughnessTex;
+float4 _PBR_Overlay2_RoughnessTex_ST;
+float _PBR_Overlay2_Tex_NormalStr;
+texture2D _PBR_Overlay2_Mask;
+float _PBR_Overlay2_Mask_Invert;
+#endif
 
-float _Tex_NormalStr;
-float _NormalStr;
+#if defined(_PBR_OVERLAY3)
+float4 _PBR_Overlay3_BaseColor;
+float _PBR_Overlay3_Metallic;
+float _PBR_Overlay3_Roughness;
+texture2D _PBR_Overlay3_BaseColorTex;
+float4 _PBR_Overlay3_BaseColorTex_ST;
+texture2D _PBR_Overlay3_NormalTex;
+float4 _PBR_Overlay3_NormalTex_ST;
+texture2D _PBR_Overlay3_MetallicTex;
+float4 _PBR_Overlay3_MetallicTex_ST;
+texture2D _PBR_Overlay3_RoughnessTex;
+float4 _PBR_Overlay3_RoughnessTex_ST;
+float _PBR_Overlay3_Tex_NormalStr;
+texture2D _PBR_Overlay3_Mask;
+float _PBR_Overlay3_Mask_Invert;
+#endif
 
-float _Min_Brightness;
-float _Max_Brightness;
+#if defined(_EMISSION)
+texture2D _EmissionTex;
+float _EmissionStrength;
+#endif
 
-float _Alpha_Cutoff;
+#if defined(_AMBIENT_OCCLUSION)
+texture2D _Ambient_Occlusion;
+float _Ambient_Occlusion_Strength;
+#endif
 
-float _Mesh_Normals_Mode;
-float _Flatten_Mesh_Normals_Str;
-float _Confabulate_Normals;
+#if defined(_RENDERING_CUTOUT)
+float _Alpha_Cutoff;
+#endif
 
+#if defined(_OUTLINES)
 float _Outline_Width;
 float4 _Outline_Color;
 float _Outline_Emission_Strength;
 texture2D _Outline_Mask;
 float _Outline_Mask_Invert;
+#endif
 
+#if defined(_GLITTER)
 texture2D _Glitter_Mask;
 float _Glitter_Density;
 float _Glitter_Amount;
@@ -61,19 +129,27 @@ float _Glitter_Seed;
 float _Glitter_Brightness;
 float _Glitter_Angle;
 float _Glitter_Power;
+#endif
 
+#if defined(_EXPLODE)
 float _Explode_Phase;
+#endif
 
+#if defined(_SCROLL)
 float _Scroll_Toggle;
 float _Scroll_Top;
 float _Scroll_Bottom;
 float _Scroll_Width;
 float _Scroll_Strength;
 float _Scroll_Speed;
+#endif
 
+#if defined(_TESSELLATION)
 float _Tess_Factor;
 float _Tess_Dist_Cutoff;
+#endif
 
+#if defined(_MATCAP0)
 float _Enable_Matcap0;
 texture2D _Matcap0;
 texture2D _Matcap0_Mask;
@@ -81,7 +157,9 @@ float _Matcap0_Mask_Invert;
 float _Matcap0Str;
 float _Matcap0Mode;
 float _Matcap0Emission;
+#endif
 
+#if defined(_MATCAP1)
 float _Enable_Matcap1;
 texture2D _Matcap1;
 texture2D _Matcap1_Mask;
@@ -89,7 +167,9 @@ float _Matcap1_Mask_Invert;
 float _Matcap1Str;
 float _Matcap1Mode;
 float _Matcap1Emission;
+#endif
 
+#if defined(_RIM_LIGHTING0)
 float _Rim_Lighting0_Enabled;
 float _Rim_Lighting0_Mode;
 float3 _Rim_Lighting0_Color;
@@ -99,7 +179,9 @@ float _Rim_Lighting0_Center;
 float _Rim_Lighting0_Power;
 float _Rim_Lighting0_Strength;
 float _Rim_Lighting0_Emission;
+#endif
 
+#if defined(_RIM_LIGHTING1)
 float _Rim_Lighting1_Enabled;
 float _Rim_Lighting1_Mode;
 float3 _Rim_Lighting1_Color;
@@ -109,27 +191,36 @@ float _Rim_Lighting1_Center;
 float _Rim_Lighting1_Power;
 float _Rim_Lighting1_Strength;
 float _Rim_Lighting1_Emission;
+#endif
 
+#if defined(_OKLAB)
 float _OKLAB_Enabled;
 texture2D _OKLAB_Mask;
 float _OKLAB_Lightness_Shift;
 float _OKLAB_Chroma_Shift;
 float _OKLAB_Hue_Shift;
+#endif
 
+#if defined(_CLONES)
 float _Clones_Enabled;
 float _Clones_Count;
 float _Clones_dx;
 float _Clones_Dist_Cutoff;
+#endif
 
+#if defined(_UVSCROLL)
 float _UVScroll_Enabled;
 texture2D _UVScroll_Mask;
 float _UVScroll_U_Speed;
 float _UVScroll_V_Speed;
 texture2D _UVScroll_Alpha;
+#endif
 
+#if defined(_LTCGI)
 float _LTCGI_Enabled;
 float4 _LTCGI_SpecularColor;
 float4 _LTCGI_DiffuseColor;
+#endif
 
 #endif