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22 lines
368 B
GLSL
22 lines
368 B
GLSL
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#version 300 es
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#ifdef GL_ES
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precision mediump float;
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#endif
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out vec2 tex;
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void main()
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{
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float idHigh = float(gl_VertexID >> 1);
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float idLow = float(gl_VertexID & int(1));
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float x = idHigh * 4.0 - 1.0;
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float y = idLow * 4.0 - 1.0;
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float u = idHigh * 2.0;
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float v = idLow * 2.0;
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gl_Position = vec4(x, y, 0.0, 1.0);
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tex = vec2(u, v);
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}
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