20 lines
377 B
Plaintext
20 lines
377 B
Plaintext
in vec2 position;
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in vec2 texcoord;
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uniform vec2 scale;
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uniform vec2 offset;
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uniform vec2 texcrop;
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out vec2 Texcoord;
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void main() {
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Texcoord = texcoord * texcrop;
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vec2 pos = scale * position + offset;
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// Coordinates are [0.0;1.0], transform [-1.0; 1.0] and flip Y
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pos.x = (pos.x * 2.0 - 1.0);
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pos.y = -1.0 * (pos.y * 2.0 - 1.0);
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gl_Position = vec4(pos, 0.0, 1.0);
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}
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