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23 lines
608 B
Text
23 lines
608 B
Text
#version 300 es
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in mediump vec3 uv;
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out lowp vec4 outColor;
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uniform sampler2D tex;
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uniform sampler3D vol;
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void main()
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{
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lowp vec4 c;
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// texture offset forms
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c = textureOffset (tex, uv.xy, ivec2(-2,-3));
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c += textureOffset (tex, uv.xy, ivec2(4,5), 0.5);
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c += textureOffset (vol, uv.xyz, ivec3(-2,-3,-4));
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c += textureOffset (vol, uv.xyz, ivec3(4,5,6), -0.5);
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// texelFetch forms
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c += texelFetch (tex, ivec2(1,2), 1);
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c += texelFetch (vol, ivec3(1,2,3), 2);
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c += texelFetchOffset (tex, ivec2(1,2), 3, ivec2(-2,-3));
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c += texelFetchOffset (vol, ivec3(1,2,3), 0, ivec3(-2,-3,-4));
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outColor = c;
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}
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