Rasterizer Class Reference

Provides static methods for rasterizing 3D scenes into 2D camera views. More...

#include <Rasterizer.h>

Collaboration diagram for Rasterizer:

Static Public Member Functions
static void	Rasterize (Scene *scene, CameraBase *camera)
	Rasterizes a 3D scene onto a 2D camera view.

Static Private Member Functions
static RGBColor	CheckRasterPixel (Triangle2D **triangles, int numTriangles, Vector2D pixelRay)
	Determines the color of a pixel by checking which triangle it intersects.
static RGBColor	CheckRasterPixelAccel (Triangle2D **triangles, int numTriangles, Vector2D pixelRay)
	Optimized version of CheckRasterPixel using acceleration structures.

Static Private Attributes
static Quaternion	rayDirection
	Direction of the ray cast for rasterization.

Detailed Description

Provides static methods for rasterizing 3D scenes into 2D camera views.

Definition at line 27 of file Rasterizer.h.

Member Function Documentation

CheckRasterPixel()

RGBColor CheckRasterPixel ( Triangle2D **  triangles, int  numTriangles, Vector2D  pixelRay  )

staticprivate

Determines the color of a pixel by checking which triangle it intersects.

Parameters

triangles	Array of 2D triangles to check against.
numTriangles	Number of triangles in the array.
pixelRay	The 2D pixel ray to test.

Returns

The color of the intersected triangle, or a default color if no intersection.

Definition at line 126 of file Rasterizer.cpp.

References Triangle2D::averageDepth, Triangle2D::GetMaterial(), Material::GetRGB(), Triangle2D::p1UV, Triangle2D::p2UV, Triangle2D::p3UV, Triangle2D::t3p1, Triangle2D::t3p3, Vector2D::X, Vector3D::X, Vector2D::Y, Vector3D::Y, and Vector3D::Z.

Referenced by Rasterize().

CheckRasterPixelAccel()

RGBColor CheckRasterPixelAccel ( Triangle2D **  triangles, int  numTriangles, Vector2D  pixelRay  )

staticprivate

Optimized version of CheckRasterPixel using acceleration structures.

Parameters

triangles	Array of 2D triangles to check against.
numTriangles	Number of triangles in the array.
pixelRay	The 2D pixel ray to test.

Returns

The color of the intersected triangle, or a default color if no intersection.

Definition at line 5 of file Rasterizer.cpp.

References Triangle2D::averageDepth, Triangle2D::denominator, Triangle2D::GetMaterial(), Material::GetRGB(), Triangle2D::p1UV, Triangle2D::p1X, Triangle2D::p1Y, Triangle2D::p2UV, Triangle2D::p3UV, Triangle2D::t3p1, Triangle2D::t3p3, Triangle2D::v0X, Triangle2D::v0Y, Triangle2D::v1X, Triangle2D::v1Y, Vector2D::X, Vector3D::X, Vector2D::Y, Vector3D::Y, and Vector3D::Z.

Rasterize()

void Rasterize ( Scene *  scene, CameraBase *  camera  )

static

Rasterizes a 3D scene onto a 2D camera view.

Parameters

scene	Pointer to the 3D scene to render.
camera	Pointer to the camera used for projection.

Definition at line 159 of file Rasterizer.cpp.

References RGBColor::B, CheckRasterPixel(), RGBColor::G, CameraBase::GetCameraLayout(), CameraBase::GetCameraMaxCoordinate(), CameraBase::GetCameraMinCoordinate(), IPixelGroup::GetColor(), IPixelGroup::GetCoordinate(), Node::GetCount(), Node::GetEntities(), CameraBase::GetLookOffset(), Object3D::GetMaterial(), Scene::GetObjectCount(), Scene::GetObjects(), CameraBase::GetPixelGroup(), Transform::GetPosition(), Material::GetRGB(), CameraLayout::GetRotation(), Transform::GetRotation(), CameraBase::GetTransform(), ITriangleGroup::GetTriangleCount(), Object3D::GetTriangleGroup(), ITriangleGroup::GetTriangles(), QuadTree::Insert(), QuadTree::Intersect(), CameraBase::Is2D(), Object3D::IsEnabled(), Quaternion::Multiply(), RGBColor::R, rayDirection, QuadTree::Rebuild(), Transform::SetBaseRotation(), Vector2D::X, and Vector2D::Y.

Referenced by RenderingEngine::Rasterize().

Member Data Documentation

rayDirection

Quaternion rayDirection

staticprivate

Direction of the ray cast for rasterization.

Definition at line 29 of file Rasterizer.h.

Referenced by Rasterize().

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The documentation for this class was generated from the following files:

• Rasterizer.h
• Rasterizer.cpp