19 lines
402 B
GLSL
19 lines
402 B
GLSL
attribute vec4 in_Position;
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uniform float radius;
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uniform float width;
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uniform float h;
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uniform float angle;
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void main(void)
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{
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float c = cos(angle);
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float s = sin(angle);
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mat3 rot = mat3(c, s, 0.0, -s, c, 0.0, 0.0, 0.0, 1.0);
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float x = in_Position.x * width + radius;
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float y = in_Position.y * h;
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vec3 p = rot * vec3(x, y, 0.0);
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gl_Position = MVPMatrix * vec4(p, 1.0);
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}
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