xingwei.zhu
6 年前
当前提交
61a56230
共有 14 个文件被更改，包括 365 次插入 和 65 次删除
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2Runtime/engine/UIWidgetsPanel.cs
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6Runtime/ui/painting/painting.cs
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25Runtime/ui/painting/path.cs
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6Runtime/ui/painting/shadow_utils.cs
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8Runtime/ui/renderer/cmdbufferCanvas/rendering/canvas_impl.cs
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86Runtime/ui/renderer/cmdbufferCanvas/rendering/canvas_shader.cs
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32Runtime/ui/renderer/common/geometry/path/path.cs
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6Samples/UIWidgetSample/MaterialSample.cs
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85Runtime/Resources/UIWidgets_canvas_shadowBox.shader
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9Runtime/Resources/UIWidgets_canvas_shadowBox.shader.meta
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100Runtime/Resources/UIWidgets_canvas_shadowRBox.shader
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9Runtime/Resources/UIWidgets_canvas_shadowRBox.shader.meta
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37Runtime/ui/renderer/cmdbufferCanvas/rendering/canvas_shadow_utils.cs
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19Runtime/ui/renderer/common/geometry/path/path_extension.cs
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Shader "UIWidgets/ShadowBox" |
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{ |
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//originally from http://madebyevan.com/shaders/fast-rounded-rectangle-shadows/ |
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Properties |
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{ |
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_SrcBlend("_SrcBlend", Int) = 1 // One |
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_DstBlend("_DstBlend", Int) = 10 // OneMinusSrcAlpha |
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_StencilComp("_StencilComp", Float) = 8 // - Equal, 8 - Always |
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} |
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SubShader |
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{ |
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ZTest Always |
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ZWrite Off |
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Blend [_SrcBlend] [_DstBlend] |
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Stencil { |
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Ref 128 |
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Comp [_StencilComp] |
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} |
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Pass { |
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CGPROGRAM |
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float4 box; |
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float4 _viewport; |
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float sigma; |
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float4 color; |
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float _mat[9]; |
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struct appdata |
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{ |
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float4 vertex : POSITION; |
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}; |
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struct v2f |
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{ |
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float4 vertex : SV_POSITION; |
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float2 coord : TEXCOORD0; |
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}; |
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float4 erf(float4 x) |
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{ |
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float4 s = sign(x); |
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float4 a = abs(x); |
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x = 1.0 + (0.278393 + (0.230389 + 0.078108 * (a * a)) * a) * a; |
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x = x * x; |
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return s - s / (x * x); |
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return s; |
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} |
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float boxShadow(float2 lower, float2 upper, float2 pnt, float sigma) |
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{ |
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float4 query = float4(pnt - lower, pnt - upper); |
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float4 integral = 0.5 + 0.5 * erf(query * (sqrt(0.5) / sigma)); |
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return (integral.z - integral.x) * (integral.w - integral.y); |
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} |
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v2f vert(appdata v){ |
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v2f o; |
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float padding = 3.0 * sigma; |
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o.coord = lerp(box.xy - padding, box.zw + padding, v.vertex.xy); |
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float3x3 mat = float3x3(_mat[0], _mat[1], _mat[2], _mat[3], _mat[4], _mat[5], 0, 0, 1); |
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float2 p = mul(mat, float3(o.coord.xy, 1.0)).xy - _viewport.xy; |
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#if UNITY_UV_STARTS_AT_TOP |
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o.vertex = float4(2.0 * p.x / _viewport.z - 1.0, 2.0 * p.y / _viewport.w - 1.0, 0, 1); |
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#else |
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o.vertex = float4(2.0 * p.x / _viewport.z - 1.0, 1.0 - 2.0 * p.y / _viewport.w, 0, 1); |
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#endif |
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return o; |
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} |
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float4 frag(v2f i) : SV_TARGET { |
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float4 fragColor = color; |
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fragColor.a = fragColor.a * boxShadow(box.xy, box.zw, i.coord, sigma); |
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return fragColor; |
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} |
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#pragma vertex vert |
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#pragma fragment frag |
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ENDCG |
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} |
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} |
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} |
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fileFormatVersion: 2 |
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guid: 105f52491741049d88708e718c749e34 |
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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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Shader "UIWidgets/ShadowRBox" |
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{ |
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//originally from http://madebyevan.com/shaders/fast-rounded-rectangle-shadows/ |
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Properties |
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{ |
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_SrcBlend("_SrcBlend", Int) = 1 // One |
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_DstBlend("_DstBlend", Int) = 10 // OneMinusSrcAlpha |
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} |
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SubShader |
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{ |
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Blend [_SrcBlend] [_DstBlend] |
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Pass { |
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CGPROGRAM |
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float4 box; |
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float2 window; |
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float sigma; |
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float4 color; |
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float corner; |
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struct appdata |
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{ |
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float4 vertex : POSITION; |
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}; |
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struct v2f |
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{ |
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float4 vertex : SV_POSITION; |
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float2 coord : TEXCOORD0; |
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}; |
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float gaussian(float x, float sigma) |
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{ |
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float pi = 3.141592653589793; |
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return exp(-(x*x) / (2.0 * sigma * sigma)) / (sqrt(2.0 * pi) * sigma); |
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} |
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float2 erf(float2 x) |
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{ |
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float2 s = sign(x); |
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float2 a = abs(x); |
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x = 1.0 + (0.278393 + (0.230389 + 0.078108 * (a * a)) * a) * a; |
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x = x * x; |
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return s - s / (x * x); |
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return s; |
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} |
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float roundedBoxShadowX(float x, float y, float sigma, float corner, float2 halfSize) |
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{ |
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float delta = min(halfSize.y - corner - abs(y), 0.0); |
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float curved = halfSize.x - corner + sqrt(max(0.0, corner * corner - delta * delta)); |
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float2 integral = 0.5 + 0.5 * erf((x + float2(-curved, curved)) * (sqrt(0.5)/sigma)); |
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return integral.y - integral.x; |
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} |
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float roundedBoxShadow(float2 lower, float2 upper, float2 pnt, float sigma, float corner) |
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{ |
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float2 center = (lower + upper) * 0.5; |
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float2 halfSize = (upper - lower) * 0.5; |
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pnt -= center; |
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float low = pnt.y - halfSize.y; |
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float high = pnt.y + halfSize.y; |
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float start = clamp(-3.0 * sigma, low, high); |
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float end = clamp(3.0 * sigma, low, high); |
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float step = (end - start) / 4.0; |
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float y = start + step * 0.5; |
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float value = 0.0; |
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for(int i=0; i<4;i++) |
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{ |
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value += roundedBoxShadowX(pnt.x, pnt.y - y, sigma, corner, halfSize) * gaussian(y, sigma) * step; |
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y += step; |
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} |
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return value; |
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} |
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v2f vert(appdata v){ |
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v2f o; |
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float padding = 3.0 * sigma; |
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o.coord = lerp(box.xy - padding, box.zw + padding, v.vertex.xy); |
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o.vertex = float4(o.coord.x * 2.0 /window.x - 1.0, o.coord.y * 2.0/window.y - 1.0, 0, 1); |
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return o; |
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} |
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float4 frag(v2f i) : SV_TARGET { |
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float4 fragColor = color; |
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fragColor.a = fragColor.a * roundedBoxShadow(box.xy, box.zw, i.coord, sigma, corner); |
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return fragColor; |
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} |
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#pragma vertex vert |
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#pragma fragment frag |
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ENDCG |
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} |
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} |
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} |
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fileFormatVersion: 2 |
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guid: 77c8565b9b449434490473ef8f7f0e91 |
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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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using Unity.UIWidgets.foundation; |
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using UnityEngine; |
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namespace Unity.UIWidgets.ui { |
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public partial class PictureFlusher { |
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void _drawRRectShadow(uiPath path, uiPaint paint) { |
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D.assert(path.isRRect, () => "Cannot draw Shadow for non-RRect shapes"); |
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D.assert(paint.style == PaintingStyle.fill, () => "Cannot draw Shadow for stroke lines"); |
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var layer = this._currentLayer; |
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var state = layer.currentState; |
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var vertices = ObjectPool<uiList<Vector3>>.alloc(); |
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vertices.SetCapacity(4); |
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vertices.Add(new Vector2(0, 0)); |
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vertices.Add(new Vector2(1, 0)); |
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vertices.Add(new Vector2(0, 1)); |
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vertices.Add(new Vector2(1, 1)); |
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var _triangles = ObjectPool<uiList<int>>.alloc(); |
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_triangles.SetCapacity(6); |
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_triangles.Add(0); |
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_triangles.Add(1); |
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_triangles.Add(2); |
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_triangles.Add(2); |
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_triangles.Add(1); |
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_triangles.Add(3); |
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var mesh = uiMeshMesh.create(state.matrix, vertices, _triangles); |
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var bound = path.getBounds(); |
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Debug.Log("Draw shadow>>> " + bound.top); |
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layer.draws.Add(CanvasShader.fastShadow(layer, mesh, path.isRect, new Vector4(bound.left, bound.top, bound.right, bound.bottom))); |
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} |
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} |
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} |
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namespace Unity.UIWidgets.ui { |
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public partial class uiPath { |
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public enum uiPathShapeHint { |
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Rect, |
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Oval, |
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RRect, |
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Other |
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} |
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public bool isRect { |
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get { return this._shapeHint == uiPathShapeHint.Rect; } |
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} |
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public bool isOval { |
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get { return this._shapeHint == uiPathShapeHint.Oval; } |
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} |
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} |
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} |
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