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25 lines
527 B
GLSL
25 lines
527 B
GLSL
#version 430 core
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//in pixel
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uniform vec2 start;
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uniform vec2 dimension;
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uniform vec2 screen;
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uniform int points;
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uniform int offset;
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layout(std430, binding = 4) buffer _data
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{
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float data[];
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};
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void main() {
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float x = gl_VertexID;
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float y = -data[(gl_VertexID+offset)%points];
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// Convert to opengl coordinates:
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vec2 position_percentage = (start + dimension*vec2(x/points, y))/screen;
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vec2 position = vec2(position_percentage.x, -position_percentage.y)*2 + vec2(-1, 1);
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gl_Position = vec4(position, 0, 1);
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} |