ui基本完毕，修了一大把的bug
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Shader "Bansonic/Sprite Outline"
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{
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Properties
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{
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[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
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[HideInInspector] _Color ("Tint", Color) = (1,1,1,1)
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[HideInInspector] PixelSnap ("Pixel snap", Float) = 0
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[HideInInspector] _RendererColor ("RendererColor", Color) = (1,1,1,1)
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[HideInInspector] _AlphaTex ("External Alpha", 2D) = "white" {}
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[HideInInspector] _EnableExternalAlpha ("Enable External Alpha", Float) = 0
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[HDR]_OutlineColor ("Outline Color", Color) = (1,1,1,1)
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_OutlineThickness ("Outline Thickness", Range(0, 12)) = 1
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_AlphaThreshold ("Alpha Threshold", Range(0, 1)) = 0.1
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_OutlineOpacity ("Outline Opacity", Range(0, 1)) = 1
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_InnerOutline ("Inner Outline Blend", Range(0, 1)) = 0
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_SpriteAlpha ("Sprite Alpha", Range(0, 1)) = 1
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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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"Queue" = "Transparent"
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"RenderType" = "Transparent"
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"RenderPipeline" = "UniversalPipeline"
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"CanUseSpriteAtlas" = "True"
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}
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Blend SrcAlpha OneMinusSrcAlpha, One OneMinusSrcAlpha
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Cull Off
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ZWrite Off
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Pass
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{
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Tags { "LightMode" = "Universal2D" }
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HLSLPROGRAM
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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/Shaders/2D/Include/Core2D.hlsl"
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#pragma vertex SpriteVertex
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#pragma fragment SpriteFragment
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#pragma target 2.0
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#pragma multi_compile_instancing
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#pragma multi_compile _ SKINNED_SPRITE
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struct Attributes
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{
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float3 positionOS : POSITION;
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float4 color : COLOR;
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float2 uv : TEXCOORD0;
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UNITY_SKINNED_VERTEX_INPUTS
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct Varyings
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{
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float4 positionCS : SV_POSITION;
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half4 color : COLOR;
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float2 uv : TEXCOORD0;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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TEXTURE2D(_MainTex);
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SAMPLER(sampler_MainTex);
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float4 _MainTex_TexelSize;
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CBUFFER_START(UnityPerMaterial)
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half4 _Color;
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half4 _OutlineColor;
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half _OutlineThickness;
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half _AlphaThreshold;
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half _OutlineOpacity;
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half _InnerOutline;
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half _SpriteAlpha;
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CBUFFER_END
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Varyings SpriteVertex(Attributes input)
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{
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Varyings output = (Varyings)0;
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UNITY_SETUP_INSTANCE_ID(input);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
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UNITY_SKINNED_VERTEX_COMPUTE(input);
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SetUpSpriteInstanceProperties();
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input.positionOS = UnityFlipSprite(input.positionOS, unity_SpriteProps.xy);
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output.positionCS = TransformObjectToHClip(input.positionOS);
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output.uv = input.uv;
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output.color = input.color * _Color * unity_SpriteColor;
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return output;
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}
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half SampleAlpha(float2 uv, half4 tint)
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{
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half4 tex = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, uv) * tint;
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return tex.a;
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}
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half ComputeOuterMask(float2 uv, half4 tint)
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{
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float2 texel = _MainTex_TexelSize.xy * max(_OutlineThickness, 0.001h);
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half center = SampleAlpha(uv, tint);
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half maxNeighbor = 0h;
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 1.0, 0.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2(-1.0, 0.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.0, 1.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.0, -1.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.7071, 0.7071), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2(-0.7071, 0.7071), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.7071, -0.7071), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2(-0.7071, -0.7071), tint));
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half centerMask = step(_AlphaThreshold, center);
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half neighborMask = step(_AlphaThreshold, maxNeighbor);
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return saturate(neighborMask - centerMask);
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}
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half ComputeInnerMask(float2 uv, half4 tint)
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{
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float2 texel = _MainTex_TexelSize.xy * max(_OutlineThickness, 0.001h);
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half center = SampleAlpha(uv, tint);
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half minNeighbor = 1h;
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 1.0, 0.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2(-1.0, 0.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.0, 1.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.0, -1.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.7071, 0.7071), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2(-0.7071, 0.7071), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.7071, -0.7071), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2(-0.7071, -0.7071), tint));
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half centerMask = step(_AlphaThreshold, center);
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half neighborMask = step(_AlphaThreshold, minNeighbor);
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return saturate(centerMask - neighborMask);
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}
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half4 SpriteFragment(Varyings input) : SV_Target
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{
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half4 baseSample = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, input.uv) * input.color;
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half outerMask = ComputeOuterMask(input.uv, input.color);
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half innerMask = ComputeInnerMask(input.uv, input.color);
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half outlineMask = saturate(lerp(outerMask, max(outerMask, innerMask), _InnerOutline)) * _OutlineOpacity;
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half4 color = baseSample;
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color.rgb *= _SpriteAlpha;
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color.a *= _SpriteAlpha;
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color.rgb = lerp(color.rgb, _OutlineColor.rgb, outlineMask * _OutlineColor.a);
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color.a = saturate(color.a + outlineMask * _OutlineColor.a);
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return color;
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}
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ENDHLSL
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}
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Pass
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{
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Tags { "LightMode" = "UniversalForward" }
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HLSLPROGRAM
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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/Shaders/2D/Include/Core2D.hlsl"
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#pragma vertex SpriteVertex
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#pragma fragment SpriteFragment
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#pragma target 2.0
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#pragma multi_compile_instancing
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#pragma multi_compile _ SKINNED_SPRITE
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struct Attributes
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{
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float3 positionOS : POSITION;
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float4 color : COLOR;
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float2 uv : TEXCOORD0;
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UNITY_SKINNED_VERTEX_INPUTS
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct Varyings
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{
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float4 positionCS : SV_POSITION;
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half4 color : COLOR;
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float2 uv : TEXCOORD0;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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TEXTURE2D(_MainTex);
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SAMPLER(sampler_MainTex);
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float4 _MainTex_TexelSize;
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CBUFFER_START(UnityPerMaterial)
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half4 _Color;
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half4 _OutlineColor;
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half _OutlineThickness;
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half _AlphaThreshold;
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half _OutlineOpacity;
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half _InnerOutline;
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half _SpriteAlpha;
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CBUFFER_END
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Varyings SpriteVertex(Attributes input)
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{
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Varyings output = (Varyings)0;
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UNITY_SETUP_INSTANCE_ID(input);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
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UNITY_SKINNED_VERTEX_COMPUTE(input);
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SetUpSpriteInstanceProperties();
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input.positionOS = UnityFlipSprite(input.positionOS, unity_SpriteProps.xy);
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output.positionCS = TransformObjectToHClip(input.positionOS);
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output.uv = input.uv;
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output.color = input.color * _Color * unity_SpriteColor;
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return output;
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}
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half SampleAlpha(float2 uv, half4 tint)
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{
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half4 tex = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, uv) * tint;
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return tex.a;
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}
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half ComputeOuterMask(float2 uv, half4 tint)
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{
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float2 texel = _MainTex_TexelSize.xy * max(_OutlineThickness, 0.001h);
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half center = SampleAlpha(uv, tint);
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half maxNeighbor = 0h;
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 1.0, 0.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2(-1.0, 0.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.0, 1.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.0, -1.0), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.7071, 0.7071), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2(-0.7071, 0.7071), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2( 0.7071, -0.7071), tint));
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maxNeighbor = max(maxNeighbor, SampleAlpha(uv + texel * float2(-0.7071, -0.7071), tint));
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half centerMask = step(_AlphaThreshold, center);
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half neighborMask = step(_AlphaThreshold, maxNeighbor);
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return saturate(neighborMask - centerMask);
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}
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half ComputeInnerMask(float2 uv, half4 tint)
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{
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float2 texel = _MainTex_TexelSize.xy * max(_OutlineThickness, 0.001h);
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half center = SampleAlpha(uv, tint);
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half minNeighbor = 1h;
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 1.0, 0.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2(-1.0, 0.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.0, 1.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.0, -1.0), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.7071, 0.7071), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2(-0.7071, 0.7071), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2( 0.7071, -0.7071), tint));
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minNeighbor = min(minNeighbor, SampleAlpha(uv + texel * float2(-0.7071, -0.7071), tint));
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half centerMask = step(_AlphaThreshold, center);
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half neighborMask = step(_AlphaThreshold, minNeighbor);
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return saturate(centerMask - neighborMask);
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}
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half4 SpriteFragment(Varyings input) : SV_Target
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{
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half4 baseSample = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, input.uv) * input.color;
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half outerMask = ComputeOuterMask(input.uv, input.color);
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half innerMask = ComputeInnerMask(input.uv, input.color);
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half outlineMask = saturate(lerp(outerMask, max(outerMask, innerMask), _InnerOutline)) * _OutlineOpacity;
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half4 color = baseSample;
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color.rgb *= _SpriteAlpha;
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color.a *= _SpriteAlpha;
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color.rgb = lerp(color.rgb, _OutlineColor.rgb, outlineMask * _OutlineColor.a);
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color.a = saturate(color.a + outlineMask * _OutlineColor.a);
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return color;
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}
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ENDHLSL
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}
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}
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FallBack "Sprites/Default"
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}
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