A virtual-geometry renderer: preprocesses a mesh into a cluster DAG, uploads it to the GPU, then each frame runs GPU-driven culling + a software rasterizer into a visibility buffer. 更多...

#include <VirtualGeometryRenderer.h>

Public 成员函数
	VirtualGeometryRenderer ()
	Virtual geometry renderer.

	~VirtualGeometryRenderer ()
	Virtual geometry renderer.

	VirtualGeometryRenderer (const VirtualGeometryRenderer &)=delete

VirtualGeometryRenderer &	operator= (const VirtualGeometryRenderer &)=delete

bool	isReady () const
	True when ready.

bool	build (const float positions, int vertexCount, const std::uint32_t indices, int indexCount)
	Builds .

bool	build (const VirtualGeometryBuilder::MeshInput &in)
	Builds .

bool	buildIcosphere (int subdiv)
	Convenience: procedural unit icosphere, `subdiv` subdivision levels.

void	setViewport (int width, int height, float fovYDeg, float errorPx=1.0f)
	Sets the viewport.

void	setCamera (const float view[16], const float proj[16], const float model[16], const float camPos[3])
	Sets the camera.

void	setCameraSimple (float camX, float camY, float camZ, float nearZ=0.1f, float farZ=100.f)
	Script-friendly: identity view (camera looking down -Z) + perspective.

void	setModelYaw (float yaw)
	Spin the virtualized model about Y by `yaw` radians each frame.

int	update ()
	Run cull + raster; returns the number of visible clusters.

bool	resolve (unsigned char *outRgba, int &outW, int &outH)
	Resolve.

eve::data::ByteData *	resolveByteData ()
	Resolve into a heap ByteData (RGBA) for scripting/display.

int	getViewWidth () const
	Returns the view width.

int	getViewHeight () const
	Returns the view height.

int	getClusterCount () const
	Returns the cluster count.

int	getVisibleCount () const
	Returns the visible count.

int	getTotalTriangleCount () const
	Returns the total triangle count.

int	getLodLevel (int clusterId) const
	Returns the lod level.

int	getMaxLodLevel () const
	Returns the max lod level.

详细描述

A virtual-geometry renderer: preprocesses a mesh into a cluster DAG, uploads it to the GPU, then each frame runs GPU-driven culling + a software rasterizer into a visibility buffer.

Lifecycle (Squirrel): r <- vg.newRenderer() r.buildIcosphere(4) (or build(...) with raw arrays) r.setViewport(w, h, fovYDeg, errorPx) r.setCamera(view[16], proj[16], model[16], cam[3]) visible <- r.update() ok <- r.resolve(rgbaArray, w, h) // CPU readback of the visibility buffer

在文件 VirtualGeometryRenderer.h 第 29 行定义.

构造及析构函数说明

◆ VirtualGeometryRenderer() [1/2]

eve::virtualgeometry::VirtualGeometryRenderer::VirtualGeometryRenderer ( )

Virtual geometry renderer.

在文件 VirtualGeometryRenderer.cpp 第 38 行定义.

引用了 eve::virtualgeometry::vgCreate().

◆ ~VirtualGeometryRenderer()

eve::virtualgeometry::VirtualGeometryRenderer::~VirtualGeometryRenderer ( )

Virtual geometry renderer.

在文件 VirtualGeometryRenderer.cpp 第 40 行定义.

引用了 eve::virtualgeometry::vgDestroy().

◆ VirtualGeometryRenderer() [2/2]

eve::virtualgeometry::VirtualGeometryRenderer::VirtualGeometryRenderer ( const VirtualGeometryRenderer & )

delete

成员函数说明

◆ build() [1/2]

bool eve::virtualgeometry::VirtualGeometryRenderer::build	(	const float *	positions,
		int	vertexCount,
		const std::uint32_t *	indices,
		int	indexCount
	)

Builds .

在文件 VirtualGeometryRenderer.cpp 第 51 行定义.

引用了 build(), indexCount, eve::virtualgeometry::VirtualGeometryBuilder::MeshInput::indexCount, indices, eve::virtualgeometry::VirtualGeometryBuilder::MeshInput::indices, positions, eve::virtualgeometry::VirtualGeometryBuilder::MeshInput::positions, vertexCount , 以及 eve::virtualgeometry::VirtualGeometryBuilder::MeshInput::vertexCount.

被这些函数引用 build() , 以及 buildIcosphere().

◆ build() [2/2]

bool eve::virtualgeometry::VirtualGeometryRenderer::build ( const VirtualGeometryBuilder::MeshInput & in )

Builds .

在文件 VirtualGeometryRenderer.cpp 第 42 行定义.

引用了 eve::virtualgeometry::VirtualGeometryBuilder::build(), ok, eve::virtualgeometry::vgReset() , 以及 eve::virtualgeometry::vgUpload().

◆ buildIcosphere()

bool eve::virtualgeometry::VirtualGeometryRenderer::buildIcosphere ( int subdiv )

Convenience: procedural unit icosphere, subdiv subdivision levels.

在文件 VirtualGeometryRenderer.cpp 第 111 行定义.

引用了 build(), idx , 以及 pos.

◆ getClusterCount()

int eve::virtualgeometry::VirtualGeometryRenderer::getClusterCount ( ) const

Returns the cluster count.

在文件 VirtualGeometryRenderer.cpp 第 235 行定义.

引用了 eve::virtualgeometry::VirtualGeometryAsset::clusters.

◆ getLodLevel()

int eve::virtualgeometry::VirtualGeometryRenderer::getLodLevel ( int clusterId ) const

Returns the lod level.

在文件 VirtualGeometryRenderer.cpp 第 243 行定义.

引用了 clusterId , 以及 eve::virtualgeometry::VirtualGeometryAsset::clusters.

◆ getMaxLodLevel()

int eve::virtualgeometry::VirtualGeometryRenderer::getMaxLodLevel ( ) const

Returns the max lod level.

在文件 VirtualGeometryRenderer.cpp 第 248 行定义.

引用了 c, eve::virtualgeometry::VirtualGeometryAsset::clusters , 以及 m.

◆ getTotalTriangleCount()

int eve::virtualgeometry::VirtualGeometryRenderer::getTotalTriangleCount ( ) const

Returns the total triangle count.

在文件 VirtualGeometryRenderer.cpp 第 239 行定义.

引用了 eve::virtualgeometry::VirtualGeometryAsset::totalTriangles().

◆ getViewHeight()

int eve::virtualgeometry::VirtualGeometryRenderer::getViewHeight ( ) const

inline

Returns the view height.

在文件 VirtualGeometryRenderer.h 第 70 行定义.

◆ getViewWidth()

int eve::virtualgeometry::VirtualGeometryRenderer::getViewWidth ( ) const

inline

Returns the view width.

在文件 VirtualGeometryRenderer.h 第 68 行定义.

◆ getVisibleCount()

int eve::virtualgeometry::VirtualGeometryRenderer::getVisibleCount ( ) const

inline

Returns the visible count.

在文件 VirtualGeometryRenderer.h 第 76 行定义.

◆ isReady()

bool eve::virtualgeometry::VirtualGeometryRenderer::isReady ( ) const

inline

True when ready.

在文件 VirtualGeometryRenderer.h 第 40 行定义.

◆ operator=()

VirtualGeometryRenderer & eve::virtualgeometry::VirtualGeometryRenderer::operator= ( const VirtualGeometryRenderer & )

delete

◆ resolve()

bool eve::virtualgeometry::VirtualGeometryRenderer::resolve	(	unsigned char *	outRgba,
		int &	outW,
		int &	outH
	)

Resolve.

Resolve the visibility buffer to RGBA (w*h*4 bytes).

在文件 VirtualGeometryRenderer.cpp 第 191 行定义.

引用了 depth, h, n, u , 以及 eve::virtualgeometry::vgReadPixels().

被这些函数引用 resolveByteData().

◆ resolveByteData()

eve::data::ByteData * eve::virtualgeometry::VirtualGeometryRenderer::resolveByteData ( )

Resolve into a heap ByteData (RGBA) for scripting/display.

在文件 VirtualGeometryRenderer.cpp 第 224 行定义.

引用了 h, resolve() , 以及 w.

◆ setCamera()

void eve::virtualgeometry::VirtualGeometryRenderer::setCamera	(	const float	view[16],
		const float	proj[16],
		const float	model[16],
		const float	camPos[3]
	)