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25 lines
611 B
GLSL
25 lines
611 B
GLSL
#ifdef GL_ES
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precision mediump float;
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precision mediump int;
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#endif
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uniform vec2 u_texelDelta;
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attribute vec4 a_position;
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attribute vec2 a_texcoord0;
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varying vec4 v_texcoord0;
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varying vec4 v_texcoord1;
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varying vec4 v_texcoord2;
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varying vec4 v_texcoord3;
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void main()
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{
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gl_Position=a_position;
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v_texcoord0=a_texcoord0.xyxy+vec4(-0.5,-0.5,-1.5,-1.5)*u_texelDelta.xyxy;
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v_texcoord1=a_texcoord0.xyxy+vec4( 0.5,-0.5, 1.5,-1.5)*u_texelDelta.xyxy;
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v_texcoord2=a_texcoord0.xyxy+vec4(-0.5, 0.5,-1.5, 1.5)*u_texelDelta.xyxy;
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v_texcoord3=a_texcoord0.xyxy+vec4( 0.5, 0.5, 1.5, 1.5)*u_texelDelta.xyxy;
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}
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