Attachment 110333 Details for Bug 86789 – YUV to RGB shader

YUV to RGB shader

yuv_to_rgb_gamma.shader (text/plain), 1.68 KB, created by Dan Teasdale on 2014-12-02 00:26:13 UTC

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Creator: Dan Teasdale

Created: 2014-12-02 00:26:13 UTC

Size: 1.68 KB

patch

obsolete

>Shader "Mimimi/Unlit/YUV to RGB GAMMA" 
>{
>     Properties {
>         _MainTex ("Texture", 2D) = "grey" {}
>     }
>
>     SubShader {
>
>        Tags { "RenderType"="Opaque" }
>		 
>         Lighting Off 
>
>		 ZWrite On
>		 Fog { Mode Off }
>		
>		 
>         Pass {
>			Name "BASE"
>		 
>             CGPROGRAM
>             #pragma vertex vert
>             #pragma fragment frag
>
>             #include "UnityCG.cginc"
>
>             struct appdata_t {
>                 float4 vertex : POSITION;
>                 float2 texcoord : TEXCOORD0;
>             };
>
>             struct v2f {
>                 float4 vertex : POSITION;
>                 float2 texcoord : TEXCOORD0;
>             };
>
>             sampler2D _MainTex;
>             uniform float4 _MainTex_ST;
>
>             v2f vert (appdata_t v)
>             {
>                 v2f o;
>                 o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
>                 o.texcoord = TRANSFORM_TEX(v.texcoord,_MainTex);
>                 return o;
>             }
>
>             float4 frag (v2f i) : COLOR
>             {
>				
>				float4 yuv = tex2D(_MainTex, i.texcoord);
>				
>				float y = yuv.b *255;
>				float u = yuv.g *255;
>				float v = yuv.r *255;
>				
>				float r = clamp((1904000*y + 2609823*v - 363703744) / 1635200.0, 0, 255);
>				float g = clamp((3827562*y - 1287801*u - 2672387*v+447306710) / 3287200.0, 0, 255);
>				float b = clamp(( 952000.0*y + 1649289.0*u - 225932192.0) / 817600.0, 0, 255);
>				
>				r = clamp( r/255.0, 0.0, 1.0);
>				g = clamp( g/255.0, 0.0, 1.0);
>				b = clamp( b/255.0, 0.0, 1.0);
>
>                return float4(r, g, b, 1);
>             }
>             ENDCG
>         }
>     }
>
>}

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Attachments on bug 86789: 110127 | 110128 | 110333

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