23 lines
471 B
Text
23 lines
471 B
Text
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#version 110
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uniform bool use_fixed_screen_size;
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uniform float zoom;
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uniform float point_size;
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uniform float near_plane_height;
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float fixed_screen_size()
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{
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return point_size;
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}
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float fixed_world_size()
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{
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return (gl_Position.w == 1.0) ? zoom * near_plane_height * point_size : near_plane_height * point_size / gl_Position.w;
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}
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void main()
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{
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gl_Position = ftransform();
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gl_PointSize = use_fixed_screen_size ? fixed_screen_size() : fixed_world_size();
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}
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