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LibGL: Fix clipping and interpolate vertex attributes
The previous clipping implementation was problematic especially when clipping against the near plane. Triangles are now correctly clipped using homogenous coordinates against all frustum planes. Texture coordinates and vertex colors are now correctly interpolated. The earier implementation was just a placeholder.
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6 changed files with 111 additions and 205 deletions
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@ -7,6 +7,8 @@
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#pragma once
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#include "GL/gl.h"
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#include <LibGfx/Vector2.h>
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#include <LibGfx/Vector4.h>
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namespace GL {
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@ -15,9 +17,9 @@ struct GLColor {
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};
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struct GLVertex {
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GLfloat x, y, z, w;
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GLfloat r, g, b, a;
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GLfloat u, v;
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FloatVector4 position;
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FloatVector4 color;
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FloatVector2 tex_coord;
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};
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struct GLTriangle {
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