30 lines
867 B
Text
30 lines
867 B
Text
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layout (location = 0) in vec3 a_position;
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layout (location = 1) in vec4 a_normal;
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layout (location = 2) in vec4 a_color;
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layout (location = 0) out vec4 v_offsets;
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layout (location = 1) out vec4 v_color;
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layout (binding = 0) uniform UBO
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{
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mat4 u_modelView;
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mat4 u_projection;
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mat4 u_pivotTransform;
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vec4 u_params;
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float u_lineHalfWidth;
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float u_maxRadius;
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};
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void main()
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{
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vec4 pos = vec4(a_position.xy, 0, 1) * u_modelView;
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vec2 normal = vec2(a_normal.x * u_params.x - a_normal.y * u_params.y,
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a_normal.x * u_params.y + a_normal.y * u_params.x);
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vec2 shiftedPos = normal * u_params.z + pos.xy;
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pos = vec4(shiftedPos, a_position.z, 1.0) * u_projection;
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gl_Position = applyPivotTransform(pos, u_pivotTransform, 0.0);
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vec2 offsets = abs(a_normal.zw);
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v_offsets = vec4(a_normal.zw, offsets - 1.0);
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v_color = a_color;
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}
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