31 lines
745 B
Text
31 lines
745 B
Text
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#version 150 compatibility
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#extension GL_EXT_geometry_shader4 : enable
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uniform float bar_width;
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in vec4 colors[];
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out vec4 color;
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vec4 map_plot_to_screen(in vec2 pnt);
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void main()
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{
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color = colors[0];
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gl_Position = map_plot_to_screen(vec2(gl_PositionIn[0].x - 0.5*bar_width, 0.0));
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EmitVertex();
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gl_Position = map_plot_to_screen(vec2(gl_PositionIn[0].x + 0.5*bar_width, 0.0));
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EmitVertex();
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gl_Position = map_plot_to_screen(vec2(gl_PositionIn[0].x + 0.5*bar_width, gl_PositionIn[0].y));
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EmitVertex();
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gl_Position = map_plot_to_screen(vec2(gl_PositionIn[0].x - 0.5*bar_width, gl_PositionIn[0].y));
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EmitVertex();
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gl_Position = map_plot_to_screen(vec2(gl_PositionIn[0].x - 0.5*bar_width, 0.0));
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EmitVertex();
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EndPrimitive();
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}
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