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184 changes: 184 additions & 0 deletions
184
NormalPainter/Assets/UTJ/NormalPainter/Shaders/Overlay.shader
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| Shader "Hidden/NormalPainter/Overlay" { | ||
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| CGINCLUDE | ||
| #include "UnityCG.cginc" | ||
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| StructuredBuffer<float3> _BaseNormals; | ||
| StructuredBuffer<float4> _BaseTangents; | ||
| StructuredBuffer<float3> _Points; | ||
| StructuredBuffer<float3> _Normals; | ||
| StructuredBuffer<float4> _Tangents; | ||
| StructuredBuffer<float> _Selection; | ||
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| struct ia_out | ||
| { | ||
| float4 vertex : POSITION; | ||
| float4 normal : NORMAL; | ||
| float4 uv : TEXCOORD0; | ||
| float4 color : COLOR; | ||
| uint vertexID : SV_VertexID; | ||
| uint instanceID : SV_InstanceID; | ||
| }; | ||
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| struct vs_out | ||
| { | ||
| float4 vertex : SV_POSITION; | ||
| float4 color : TEXCOORD0; | ||
| }; | ||
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| vs_out vert_local_space_normals_overlay(ia_out v) | ||
| { | ||
| vs_out o; | ||
| o.vertex = UnityObjectToClipPos(v.vertex); | ||
| o.color.rgb = v.normal.xyz * 0.5 + 0.5; | ||
| o.color.a = 1.0; | ||
| return o; | ||
| } | ||
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| float3 ToBaseTangentSpace(uint vid, float3 n) | ||
| { | ||
| float3 base_normal = _BaseNormals[vid]; | ||
| float4 base_tangent = _BaseTangents[vid]; | ||
| float3 base_binormal = normalize(cross(base_normal, base_tangent.xyz) * base_tangent.w); | ||
| float3x3 tbn = float3x3(base_tangent.xyz, base_binormal, base_normal); | ||
| return normalize(mul(n, transpose(tbn))); | ||
| } | ||
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| vs_out vert_tangent_space_normals_overlay(ia_out v) | ||
| { | ||
| vs_out o; | ||
| o.vertex = UnityObjectToClipPos(v.vertex); | ||
| o.color.rgb = ToBaseTangentSpace(v.vertexID, v.normal.xyz) * 0.5 + 0.5; | ||
| o.color.a = 1.0; | ||
| return o; | ||
| } | ||
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| vs_out vert_tangents_overlay(ia_out v) | ||
| { | ||
| vs_out o; | ||
| o.vertex = UnityObjectToClipPos(v.vertex); | ||
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| float4 tangent = _Tangents[v.vertexID]; | ||
| o.color.rgb = (tangent.xyz * tangent.w) * 0.5 + 0.5; | ||
| o.color.a = 1.0; | ||
| return o; | ||
| } | ||
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| vs_out vert_binormals_overlay(ia_out v) | ||
| { | ||
| vs_out o; | ||
| o.vertex = UnityObjectToClipPos(v.vertex); | ||
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| float4 tangent = _Tangents[v.vertexID]; | ||
| float3 binormal = normalize(cross(v.normal.xyz, tangent.xyz * tangent.w)); | ||
| o.color.rgb = binormal * 0.5 + 0.5; | ||
| o.color.a = 1.0; | ||
| return o; | ||
| } | ||
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| vs_out vert_uv_overlay(ia_out v) | ||
| { | ||
| vs_out o; | ||
| o.vertex = UnityObjectToClipPos(v.vertex); | ||
| o.color = float4(v.uv.xy, 0.0, 1.0); | ||
| return o; | ||
| } | ||
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| vs_out vert_color_overlay(ia_out v) | ||
| { | ||
| vs_out o; | ||
| o.vertex = UnityObjectToClipPos(v.vertex); | ||
| o.color = v.color; | ||
| return o; | ||
| } | ||
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| float4 frag(vs_out v) : SV_Target | ||
| { | ||
| return v.color; | ||
| } | ||
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| ENDCG | ||
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| SubShader | ||
| { | ||
| Tags{ "RenderType" = "Transparent" "Queue" = "Transparent+99" } | ||
| Blend SrcAlpha OneMinusSrcAlpha | ||
| ZWrite Off | ||
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| // pass 0: local space normals overlay | ||
| Pass | ||
| { | ||
| ZTest LEqual | ||
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| CGPROGRAM | ||
| #pragma vertex vert_local_space_normals_overlay | ||
| #pragma fragment frag | ||
| #pragma target 4.5 | ||
| ENDCG | ||
| } | ||
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| // pass 1: tangent space normals overlay | ||
| Pass | ||
| { | ||
| ZTest LEqual | ||
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| CGPROGRAM | ||
| #pragma vertex vert_tangent_space_normals_overlay | ||
| #pragma fragment frag | ||
| #pragma target 4.5 | ||
| ENDCG | ||
| } | ||
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| // pass 2: tangents overlay | ||
| Pass | ||
| { | ||
| ZTest LEqual | ||
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| CGPROGRAM | ||
| #pragma vertex vert_tangents_overlay | ||
| #pragma fragment frag | ||
| #pragma target 4.5 | ||
| ENDCG | ||
| } | ||
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| // pass 3: binormals overlay | ||
| Pass | ||
| { | ||
| ZTest LEqual | ||
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| CGPROGRAM | ||
| #pragma vertex vert_binormals_overlay | ||
| #pragma fragment frag | ||
| #pragma target 4.5 | ||
| ENDCG | ||
| } | ||
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| // pass 4: uv overlay | ||
| Pass | ||
| { | ||
| ZTest LEqual | ||
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| CGPROGRAM | ||
| #pragma vertex vert_uv_overlay | ||
| #pragma fragment frag | ||
| #pragma target 4.5 | ||
| ENDCG | ||
| } | ||
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| // pass 5: vertex color overlay | ||
| Pass | ||
| { | ||
| ZTest LEqual | ||
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| CGPROGRAM | ||
| #pragma vertex vert_color_overlay | ||
| #pragma fragment frag | ||
| #pragma target 4.5 | ||
| ENDCG | ||
| } | ||
| } | ||
| } |
10 changes: 10 additions & 0 deletions
10
NormalPainter/Assets/UTJ/NormalPainter/Shaders/Overlay.shader.meta
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