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24 lines
557 B
GLSL
24 lines
557 B
GLSL
#version 460
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layout(location = 0) in vec2 vertex_pos;
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layout(location = 0) flat out vec4 color;
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//in pixel
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uniform vec2 start;
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uniform vec2 direction;
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uniform vec2 screen;
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uniform int lineColor;
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void main() {
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// Convert to opengl coordinates:
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vec2 position_percentage = (start + vertex_pos*direction)/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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color = vec4((lineColor & 0xff0000)>>16, (lineColor & 0xff00)>>8, lineColor & 0xff, (lineColor>>24) & 255)/255.0;
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}
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