OpenGL wrapper API

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Detailed Description

These classes wrap parts of the OpenGL API, maintaining a rather close mapping to the underlying concepts, but providing useful services and a semblance of automatic resource management. They are used by most higher-level components such as the 3D rendering pipeline.

Classes
class	wendy::GL::VertexBuffer
	Vertex buffer. Uses VBO if available, with fallback to vertex arrays. More...
class	wendy::GL::VertexRange
	Vertex buffer range. This class represents a contigous range of an vertex buffer object. This is useful for allocation schemes where many smaller objects are fitted into a single vertex buffer for performance reasons. More...
class	wendy::GL::IndexBuffer
	Index (or element) buffer. Uses VBO if available, with fallback to index arrays. More...
class	wendy::GL::IndexRange
	Index buffer range. This class represents a contigous range of an index buffer object. This is useful for allocation schemes where many smaller objects are fitted into a single index buffer for performance reasons. More...
class	wendy::GL::Canvas
	Rendering canvas. This class represents a render target, i.e. a framebuffer binding. More...
class	wendy::GL::ScreenCanvas
	Canvas for rendering to the screen. More...
class	wendy::GL::TextureCanvas
	Canvas for rendering to a texture. More...
class	wendy::GL::ScreenMode
	Screen mode. More...
class	wendy::GL::ContextMode
	Context settings. This class provides the settings parameters available for OpenGL context creation, as provided through Context::create. More...
class	wendy::GL::Context
	OpenGL context singleton. This class encapsulates the OpenGL context, provides display mode control and basic HID (input) signals. It also initializes the GLEW library, allowing use of the GLEW booleans in client code for the entire lifetime of the context. More...
class	wendy::GL::Pass
	Render pass state object. This class and its associated classes encapsulates most of the OpenGL rendering state, notable exceptions being the matrix stacks, object parameters, as well as scene-level states such as stencil and fog. More...
class	wendy::GL::Shader
	Base class for OpenGL Shading Language shader objects. More...
class	wendy::GL::VertexShader
	OpenGL Shading Language vertex shader object. More...
class	wendy::GL::FragmentShader
	OpenGL Shading Language fragment shader object. More...
class	wendy::GL::ShaderAttribute
	GLSL program vertex attribute. This class describes a single GLSL program vertex attribute. More...
class	wendy::GL::ShaderUniform
	GLSL program uniform. This class describes a single writable GLSL program uniform, or an array of writable uniforms. More...
class	wendy::GL::ShaderPermutation
class	wendy::GL::ShaderProgram
class	wendy::GL::Texture
	Texture image object. More...
class	wendy::GL::TextureLayer
	Texture unit state. This class ties a specific texture (or no texture) to a specific texture unit, and can be said to represent a texture unit binding. More...
class	wendy::GL::TextureStack
	Texture layer stack object. This class represents a state for the entire set of texture units (of which there may be only one, if multitexturing is unsupported). More...
class	wendy::GL::VertexComponent
	Vertex format component descriptor. This class describes a single logical component of a vertex format. A component may have multiple members. More...
class	wendy::GL::VertexFormat
	Vertex format descriptor. This class describes a mapping between the physical layout and the semantic structure of a given vertex format. More...
Enumerations
enum	wendy::GL::LockType { wendy::GL::LOCK_READ_ONLY, wendy::GL::LOCK_WRITE_ONLY, wendy::GL::LOCK_READ_WRITE }
enum	wendy::GL::CullMode { wendy::GL::CULL_NONE, wendy::GL::CULL_FRONT = GL_FRONT, wendy::GL::CULL_BACK = GL_BACK, wendy::GL::CULL_BOTH = GL_FRONT_AND_BACK }
	Cull mode enumeration. More...

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Enumeration Type Documentation

enum wendy::GL::CullMode

Cull mode enumeration.

Enumerator:

CULL_NONE	Do not cull any geometry.
CULL_FRONT	Cull front-facing geometry (i.e. render back-facing geometry).
CULL_BACK	Cull back-facing geometry (i.e. render front-facing geometry).
CULL_BOTH	Cull all cullable geometry (i.e. front and back faces).

enum wendy::GL::LockType

Memory locking type enumeration.

Enumerator:

LOCK_READ_ONLY	Requests read-only access.
LOCK_WRITE_ONLY	Requests write-only access.
LOCK_READ_WRITE	Requests read and write access.