88 lines
2.6 KiB
Plaintext
88 lines
2.6 KiB
Plaintext
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Shader "Hidden/AstarPathfindingProject/Navmesh Outline" {
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Properties {
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_Color ("Main Color", Color) = (1,1,1,0.5)
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_FadeColor ("Fade Color", Color) = (1,1,1,0.3)
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_PixelWidth ("Width (px)", Float) = 4
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}
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SubShader {
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Blend SrcAlpha OneMinusSrcAlpha
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ZWrite Off
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Offset -2, -50
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Pass {
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ZTest LEqual
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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#include "Navmesh.cginc"
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float4 _Color;
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float _PixelWidth;
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// Number of screen pixels that the _Falloff texture corresponds to
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static const float FalloffTextureScreenPixels = 2;
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line_v2f vert (appdata_color v, out float4 outpos : SV_POSITION) {
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line_v2f o = line_vert(v, _PixelWidth, outpos);
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o.col = v.color * _Color;
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if (!IsGammaSpaceCompatibility()) {
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o.col.rgb = GammaToLinearSpace(o.col.rgb);
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}
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return o;
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}
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half4 frag (line_v2f i, UNITY_VPOS_TYPE screenPos : VPOS) : COLOR {
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float2 p = (i.screenPos.xy/i.screenPos.w) - (i.originScreenPos.xy / i.originScreenPos.w);
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// Handle DirectX properly. See https://docs.unity3d.com/Manual/SL-PlatformDifferences.html
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p.y *= _ProjectionParams.x;
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float dist = dot(p*_ScreenParams.xy, i.normal) / _PixelWidth;
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float FalloffFractionOfWidth = FalloffTextureScreenPixels/(_PixelWidth*0.5);
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float a = lineAA((abs(dist*4) - (1 - FalloffFractionOfWidth))/FalloffFractionOfWidth);
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return i.col * float4(1,1,1,a);
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}
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ENDCG
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}
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Pass {
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ZTest Greater
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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#include "Navmesh.cginc"
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float4 _Color;
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float4 _FadeColor;
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float _PixelWidth;
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static const float FalloffTextureScreenPixels = 2;
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line_v2f vert (appdata_color v, out float4 outpos : SV_POSITION) {
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line_v2f o = line_vert(v, _PixelWidth, outpos);
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o.col = v.color * _Color * _FadeColor;
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if (!IsGammaSpaceCompatibility()) {
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o.col.rgb = GammaToLinearSpace(o.col.rgb);
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}
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return o;
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}
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half4 frag (line_v2f i, UNITY_VPOS_TYPE screenPos : VPOS) : COLOR {
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float2 p = (i.screenPos.xy/i.screenPos.w) - (i.originScreenPos.xy / i.originScreenPos.w);
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// Handle DirectX properly. See https://docs.unity3d.com/Manual/SL-PlatformDifferences.html
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p.y *= _ProjectionParams.x;
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float dist = dot(p*_ScreenParams.xy, i.normal) / _PixelWidth;
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float FalloffFractionOfWidth = FalloffTextureScreenPixels/(_PixelWidth*0.5);
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float a = lineAA((abs(dist*4) - (1 - FalloffFractionOfWidth))/FalloffFractionOfWidth);
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return i.col * float4(1,1,1,a);
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}
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ENDCG
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}
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}
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Fallback Off
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}
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