Arturo Nereu
4 年前
当前提交
06e52bd6
共有 7 个文件被更改，包括 159 次插入 和 537 次删除
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4Assets/Shaders/Materials/WireFrame.mat
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4Assets/Shaders/Models/TestARMesh.fbx.meta
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358Assets/Shaders/Scenes/Shaders Test Bed.unity
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31Assets/Shaders/Scripts/BarycentricDataBuilder.cs
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176Assets/Shaders/Shader Graphs/WireFrame.shadergraph
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9Assets/Shaders/Shaders/Wireframe.shader.meta
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114Assets/Shaders/Shaders/Wireframe.shader
176
Assets/Shaders/Shader Graphs/WireFrame.shadergraph
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fileFormatVersion: 2 |
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guid: 2ebf8588c637ced48975d10b3856a104 |
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ShaderImporter: |
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externalObjects: {} |
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defaultTextures: [] |
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nonModifiableTextures: [] |
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userData: |
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assetBundleName: |
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assetBundleVariant: |
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// Based on https://catlikecoding.com/unity/tutorials/advanced-rendering/flat-and-wireframe-shading/ |
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Shader "AR/Wireframe" |
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{ |
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Properties |
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{ |
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_WireThickness("Thickness", Range(0, 20)) = 1 |
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_DistanceToEdgeThreshold("Smoothing", Range(0,2)) = 0.01 |
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_WireColor("Color", Color) = (1.0,1.0,1.0,1.0) |
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} |
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SubShader |
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{ |
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Tags |
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{ |
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"LightMode" = "UniversalForward" |
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"PassFlags" = "OnlyDirectional" |
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"Queue" = "Transparent" |
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"RenderType" = "Transparent" |
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} |
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Pass |
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{ |
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Name "WirePass" |
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Blend SrcAlpha OneMinusSrcAlpha |
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HLSLPROGRAM |
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#pragma vertex vert |
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#pragma fragment frag |
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#pragma geometry geom |
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl" |
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl" |
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struct appdata |
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{ |
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float4 vertex : POSITION; |
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float2 uv : TEXCOORD0; |
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}; |
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struct v2g |
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{ |
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float4 vertex : SV_POSITION; |
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}; |
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struct g2f |
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{ |
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float4 vertex : SV_POSITION; |
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float4 dist : TEXCOORD2; |
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}; |
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half _WireThickness; |
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half _DistanceToEdgeThreshold; |
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half4 _WireColor; |
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v2g vert(appdata v) |
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{ |
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v2g o; |
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o.vertex = TransformObjectToHClip(v.vertex); |
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return o; |
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} |
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[maxvertexcount(3)] |
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void geom(triangle v2g i[3], inout TriangleStream<g2f> stream) |
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{ |
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float2 p0 = i[0].vertex.xy / i[0].vertex.w; |
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float2 p1 = i[1].vertex.xy / i[1].vertex.w; |
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float2 p2 = i[2].vertex.xy / i[2].vertex.w; |
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float2 edge0 = p2 - p1; |
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float2 edge1 = p2 - p0; |
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float2 edge2 = p1 - p0; |
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float area = abs(edge1.x * edge2.y - edge1.y * edge2.x); |
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float wireThickness = 20 - _WireThickness; |
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g2f o; |
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o.vertex = i[0].vertex; |
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o.dist.xyz = float3((area / length(edge0)), 0.0, 0.0) * o.vertex.w * wireThickness; |
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o.dist.w = 1.0 / o.vertex.w; |
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stream.Append(o); |
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o.vertex = i[1].vertex; |
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o.dist.xyz = float3(0.0, (area / length(edge1)), 0.0) * o.vertex.w * wireThickness; |
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o.dist.w = 1.0 / o.vertex.w; |
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stream.Append(o); |
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o.vertex = i[2].vertex; |
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o.dist.xyz = float3(0.0, 0.0, (area / length(edge2))) * o.vertex.w * wireThickness; |
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o.dist.w = 1.0 / o.vertex.w; |
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stream.Append(o); |
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} |
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half4 frag(g2f i) : SV_Target |
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{ |
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half4 col = _WireColor;// half4(0.0,0.0,0.0,0.0); |
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float minDistanceToEdge = min(i.dist[0], min(i.dist[1], i.dist[2])) * i.dist[3]; |
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if (minDistanceToEdge > _DistanceToEdgeThreshold) |
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{ |
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col.a = 0.0; |
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} |
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else col.a = 1.0; |
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return col; |
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} |
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ENDHLSL |
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} |
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} |
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} |
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