From b82da95b5181ac8bbae38efb13e950d5e88a4caa Mon Sep 17 00:00:00 2001 From: chai Date: Fri, 23 Oct 2020 13:08:43 +0800 Subject: =?UTF-8?q?*=E7=A7=BB=E5=8A=A8amplify=20shader=20editor=E5=88=B0th?= =?UTF-8?q?ird=20party=E7=9B=AE=E5=BD=95?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../Previews/Preview_SimpleContrastNode.shader | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_SimpleContrastNode.shader (limited to 'Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_SimpleContrastNode.shader') diff --git a/Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_SimpleContrastNode.shader b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_SimpleContrastNode.shader new file mode 100644 index 00000000..96fa3b1b --- /dev/null +++ b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_SimpleContrastNode.shader @@ -0,0 +1,39 @@ +Shader "Hidden/SimpleContrastNode" +{ + Properties + { + _A ( "_RBG", 2D ) = "white" {} + _B ( "_Fraction", 2D ) = "white" {} + } + + SubShader + { + Pass + { + CGPROGRAM + #include "UnityCG.cginc" + #pragma vertex vert_img + #pragma fragment frag + + uniform sampler2D _A; + uniform sampler2D _B; + + float4 CalculateContrast ( float contrastValue, float4 colorTarget ) + { + float t = 0.5 * ( 1.0 - contrastValue ); + return mul ( float4x4( contrastValue, 0, 0, t, 0, contrastValue, 0, t, 0, 0, contrastValue, t, 0, 0, 0, 1 ), colorTarget ); + } + + float4 frag ( v2f_img i ) : SV_Target + { + float4 rgba = tex2D ( _B, i.uv ); + float value = tex2D ( _A, i.uv ).r; + + float4 finalColor = CalculateContrast( value , rgba ); + + return finalColor; + } + ENDCG + } + } +} -- cgit v1.1-26-g67d0