28 lines
515 B
GLSL
28 lines
515 B
GLSL
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uniform mat4 projMat;
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uniform vec2 texSizeInv;
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uniform vec2 translation;
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uniform float aniIndex;
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attribute vec2 position;
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attribute vec2 texCoord;
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varying vec2 v_texCoord;
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const float atAreaW = 96.0;
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const float atAreaH = 128.0*7.0;
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const float atAniOffset = 32.0*3.0;
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void main()
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{
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vec2 tex = texCoord;
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lowp float pred = float(tex.x <= atAreaW && tex.y <= atAreaH);
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tex.x += aniIndex * atAniOffset * pred;
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gl_Position = projMat * vec4(position + translation, 0, 1);
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v_texCoord = tex * texSizeInv;
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}
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