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LibGL+LibSoftGPU: Implement normalization of normals

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* LibGL now supports the `GL_NORMALIZE` capability
* LibSoftGPU transforms and normalizes the vertices' normals

Normals are heavily used in texture coordinate generation, to be
implemented in a future commit.
This commit is contained in:
Jelle Raaijmakers 2021-12-30 00:27:17 +01:00 • committed by Andreas Kling
parent e056cf7e3f
commit 3a5f69b6f3
4 changed files with 38 additions and 4 deletions
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4
Userland/Libraries/LibSoftGPU/Device.h
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@ -10,6 +10,7 @@
#include <AK/NonnullRefPtr.h>
#include <AK/OwnPtr.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Matrix3x3.h>
#include <LibGfx/Matrix4x4.h>
#include <LibGfx/Rect.h>
#include <LibGfx/Vector4.h>
@ -47,6 +48,7 @@ struct RasterizerOptions {
float fog_start { 0.0f };
float fog_end { 1.0f };
bool scissor_enabled { false };
bool normalization_enabled { false };
Gfx::IntRect scissor_box;
bool enable_color_write { true };
float depth_offset_factor { 0 };
@ -65,7 +67,7 @@ public:
DeviceInfo info() const;
void draw_primitives(PrimitiveType, FloatMatrix4x4 const& transform, FloatMatrix4x4 const& texture_matrix, Vector<Vertex> const& vertices, Vector<size_t> const& enabled_texture_units);
void draw_primitives(PrimitiveType, FloatMatrix4x4 const& transform, FloatMatrix3x3 const& normal_transform, FloatMatrix4x4 const& texture_transform, Vector<Vertex> const& vertices, Vector<size_t> const& enabled_texture_units);
void resize(const Gfx::IntSize& min_size);
void clear_color(const FloatVector4&);
void clear_depth(float);