Camera projection queries answered by the module that owns Camera3D. 更多...

#include <SceneCameraProjection.h>

Public 成员函数
virtual	~ISceneCameraProjection ()=default
	Releases ISceneCameraProjection resources.

virtual std::optional< ScreenRay >	screenRay (graphics::Camera3D &cam, float screenX, float screenY, float viewW, float viewH) const =0
	Ray through a screen pixel.

virtual std::optional< CameraClip >	clipForViewport (graphics::Camera3D &cam, float viewW, float viewH) const =0
	Clip matrix and its inverse for a camera and viewport.

静态 Public 属性
static constexpr const char *	capabilityName = "ISceneCameraProjection"

详细描述

Camera projection queries answered by the module that owns Camera3D.

@ownership The caller owns the camera it passes and keeps it alive for the duration of each call; the implementation never stores it. @lifetime A borrowed camera must outlive the call only; the returned ray or matrices are values, so no pointer to either is retained. @threadsafety Stateless implementations; screenRay carries the same caller-side serialization requirement as Camera3D::screenToRay.

在文件 SceneCameraProjection.h 第 64 行定义.

构造及析构函数说明

◆ ~ISceneCameraProjection()

virtual eve::scene::ISceneCameraProjection::~ISceneCameraProjection ( )

virtualdefault

Releases ISceneCameraProjection resources.

成员函数说明

◆ clipForViewport()

virtual std::optional< CameraClip > eve::scene::ISceneCameraProjection::clipForViewport	(	graphics::Camera3D &	cam,
		float	viewW,
		float	viewH
	)		const

pure virtual

Clip matrix and its inverse for a camera and viewport.

参数

cam	Borrowed camera.
viewW,viewH	Viewport size; must be positive.

返回: The matrices, or std::nullopt for a degenerate viewport. @ownership The caller retains the camera; no pointer is stored. @lifetime The camera must stay valid for this call only. @cost O(1) plus one 4x4 inverse.

◆ screenRay()

virtual std::optional< ScreenRay > eve::scene::ISceneCameraProjection::screenRay	(	graphics::Camera3D &	cam,
		float	screenX,
		float	screenY,
		float	viewW,
		float	viewH
	)		const

pure virtual

Ray through a screen pixel.

参数

cam	Borrowed camera; updated in place with the ray it computed.
screenX,screenY	Pixel in the viewport.
viewW,viewH	Viewport size.

返回: The ray, or std::nullopt when the camera cannot produce one. @ownership The caller retains the camera; no pointer is stored. @lifetime The camera must stay valid for this call only. @cost O(1).

类成员变量说明

◆ capabilityName

constexpr const char* eve::scene::ISceneCameraProjection::capabilityName = "ISceneCameraProjection"

staticconstexpr

在文件 SceneCameraProjection.h 第 66 行定义.

该类的文档由以下文件生成:

src/modules/scene/SceneCameraProjection.h

Public 成员函数

静态 Public 属性