1 files changed, 119 insertions, 0 deletions
diff --git a/VRCSDK3Worlds/Assets/VRCSDK/Sample Assets/Shaders/Mobile/VRChat-Mobile-MatCapLit.shader b/VRCSDK3Worlds/Assets/VRCSDK/Sample Assets/Shaders/Mobile/VRChat-Mobile-MatCapLit.shader
new file mode 100644
index 00000000..574a5914
--- /dev/null
+++ b/VRCSDK3Worlds/Assets/VRCSDK/Sample Assets/Shaders/Mobile/VRChat-Mobile-MatCapLit.shader
@@ -0,0 +1,119 @@
+// VRChat MatCapLit shader, based on Unity's Mobile/Diffuse. Copyright (c) 2019 VRChat.
+
+// Simple MatCapLit shader.
+// -fully supports only 1 directional light. Other lights can affect it, but it will be per-vertex/SH.
+
+Shader "VRChat/Mobile/MatCap Lit"
+{
+    Properties
+    {    
+        _MainTex("Texture", 2D) = "white" {}
+        _MatCap ("MatCap (RGB)", 2D) = "white" {}
+    }
+
+    SubShader
+    {
+        Tags { "RenderType"="Opaque" "Queue"="Geometry" }
+        Pass
+        {
+            Name "FORWARD"
+            Tags { "LightMode" = "ForwardBase" }
+            
+            CGPROGRAM
+            
+            #pragma vertex vert
+            #pragma fragment frag
+
+            #pragma multi_compile_fwdbase
+            #pragma multi_compile_instancing
+            #pragma skip_variants SHADOWS_SHADOWMASK SHADOWS_SCREEN SHADOWS_DEPTH SHADOWS_CUBE
+
+            #include "UnityPBSLighting.cginc"
+            #include "AutoLight.cginc"
+
+            struct VertexInput
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+                float3 normal : NORMAL;
+                float4 color : COLOR;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct VertexOutput
+            {    
+                float4 pos : SV_POSITION;
+                float2 uv : TEXCOORD0;
+                float4 worldPos : TEXCOORD1;
+                float4 color : TEXCOORD2;
+                float4 indirect : TEXCOORD3;
+                float4 direct : TEXCOORD4;
+                float2 matcapUV : TEXCOORD5;
+                SHADOW_COORDS(7)
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+                UNITY_VERTEX_OUTPUT_STEREO
+            };
+
+            UNITY_DECLARE_TEX2D(_MainTex); 
+            half4 _MainTex_ST;
+
+            UNITY_DECLARE_TEX2D(_MatCap);
+
+            float2 matcapSample(float3 viewDirection, float3 normalDirection)
+            {
+                half3 worldUp = float3(0,1,0);
+                half3 worldViewUp = normalize(worldUp - viewDirection * dot(viewDirection, worldUp));
+                half3 worldViewRight = normalize(cross(viewDirection, worldViewUp));
+                half2 matcapUV = half2(dot(worldViewRight, normalDirection), dot(worldViewUp, normalDirection)) * 0.5 + 0.5;
+                return matcapUV;
+            }
+  
+            VertexOutput vert (VertexInput v)
+            {
+                VertexOutput o;
+                UNITY_SETUP_INSTANCE_ID(v);
+                UNITY_INITIALIZE_OUTPUT(VertexOutput, o);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+
+                o.pos = UnityObjectToClipPos(v.vertex);
+                o.worldPos = mul(unity_ObjectToWorld, v.vertex);
+                o.uv = v.uv;
+                
+                half3 indirectDiffuse = ShadeSH9(float4(0, 0, 0, 1)); // We don't care about anything other than the color from GI, so only feed in 0,0,0, rather than the normal
+                half4 lightCol = _LightColor0;
+                 
+                //If we don't have a directional light or realtime light in the scene, we can derive light color from a slightly modified indirect color.
+                int lightEnv = int(any(_WorldSpaceLightPos0.xyz));
+                if(lightEnv != 1)
+                    lightCol = indirectDiffuse.xyzz * 0.2; 
+            
+                float4 lighting = lightCol; 
+                
+                o.color = v.color;
+                o.direct = lighting;
+                o.indirect = indirectDiffuse.xyzz;
+                
+                float3 worldNorm = normalize(unity_WorldToObject[0].xyz * v.normal.x + unity_WorldToObject[1].xyz * v.normal.y + unity_WorldToObject[2].xyz * v.normal.z);
+                worldNorm = mul((float3x3)UNITY_MATRIX_V, worldNorm);
+                o.matcapUV = matcapSample(normalize(_WorldSpaceCameraPos - o.worldPos), UnityObjectToWorldNormal(v.normal)); //worldNorm.xy * 0.5 + 0.5; 
+                
+                TRANSFER_SHADOW(o);
+                return o;
+            }
+            
+            float4 frag (VertexOutput i, float facing : VFACE) : SV_Target
+            {
+                UNITY_LIGHT_ATTENUATION(attenuation, i, i.worldPos.xyz);
+            
+                float4 albedo = UNITY_SAMPLE_TEX2D(_MainTex, TRANSFORM_TEX(i.uv, _MainTex));
+                float4 mc = UNITY_SAMPLE_TEX2D(_MatCap, i.matcapUV);
+                half4 final = (albedo * i.color * mc) * (i.direct * attenuation + i.indirect);
+                
+                return float4(final.rgb, 1);
+            }
+            ENDCG
+        }
+    }
+
+    Fallback "VRChat/Mobile/Diffuse"
+}