Structure representing a single shadow source. More...

Public Attributes
GLfloat	clearcolor [4]
	Color used to clear the shadow map.
Status variables
bool	init
	Flag stating if the shadow source has been already initialized.
bool	active
	Flag stating if the shadow source is active.
GL buffer and texture names
GLuint	shadFBO
	Framebuffer object for the shadow map rendering.
GLuint	depthRBO
	Depth Renderbuffer object for aid during shadow map rendering.
GLuint	shadTex
	Texture image OpenGL name where the shadow map is rendered.
GLuint	blurFBO
	Framebuffer object for the blur filter first pass.
GLuint	blurTex
	Texture image OpenGL name where the first blurring step is performed.
Shadow frustum properties
GLfloat	viewmat [16]
	Shadow source view matrix.
GLfloat	projmatfetch [16]
	Shadow source projection matrix used when we have to fetch a texel while rendering.
GLfloat	projmat [16]
	Shadow source projection matrix used when rendering the map.
GLfloat	znear
	Shadow source near clipping distance.
GLfloat	zfar
	Shadow source far clipping distance.
GLfloat	vfvertices [8][3]
	Shadow source view frustum vertices in world coordinates.
Texture (and viewport) size
GLsizei	width
	Shadow map width in pixels.
GLsizei	height
	Shadow map height in pixels.
GLfloat	mapsize [2]
	Shadow map dimensions in pixels (floating point values)
Algorithm parameters
GLint	filtersize
	Gaussian blur filter size (stored with a -1 for efficiency)
GLfloat	intensity
	Shadow intensity.
GLfloat	minvariance
	Minimum variance.
GLfloat	bleedred
	Light bleeding reduction factor.
GLfloat	depthscale
	Depth scale for exponential warp.

Detailed Description

Structure representing a single shadow source.

As already stated, this class is not related with the VR3Light class and merely represents a point in space where shadows have their origin.

Definition at line 253 of file VR3ShadowController.h.

Member Data Documentation

bool VR3ShadowController::ShadowSource::active

Flag stating if the shadow source is active.

Definition at line 261 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::bleedred

Light bleeding reduction factor.

Definition at line 330 of file VR3ShadowController.h.

GLuint VR3ShadowController::ShadowSource::blurFBO

Framebuffer object for the blur filter first pass.

Definition at line 275 of file VR3ShadowController.h.

GLuint VR3ShadowController::ShadowSource::blurTex

Texture image OpenGL name where the first blurring step is performed.

Definition at line 277 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::clearcolor[4]

Color used to clear the shadow map.

This vector depends on the depth scale value for the current source.

Definition at line 339 of file VR3ShadowController.h.

GLuint VR3ShadowController::ShadowSource::depthRBO

Depth Renderbuffer object for aid during shadow map rendering.

Definition at line 271 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::depthscale

Depth scale for exponential warp.

Definition at line 332 of file VR3ShadowController.h.

GLint VR3ShadowController::ShadowSource::filtersize

Gaussian blur filter size (stored with a -1 for efficiency)

Definition at line 324 of file VR3ShadowController.h.

GLsizei VR3ShadowController::ShadowSource::height

Shadow map height in pixels.

Definition at line 314 of file VR3ShadowController.h.

bool VR3ShadowController::ShadowSource::init

Flag stating if the shadow source has been already initialized.

Definition at line 259 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::intensity

Shadow intensity.

Definition at line 326 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::mapsize[2]

Shadow map dimensions in pixels (floating point values)

Definition at line 316 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::minvariance

Minimum variance.

Definition at line 328 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::projmat[16]

Shadow source projection matrix used when rendering the map.

Definition at line 289 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::projmatfetch[16]

Shadow source projection matrix used when we have to fetch a texel while rendering.

Definition at line 287 of file VR3ShadowController.h.

GLuint VR3ShadowController::ShadowSource::shadFBO

Framebuffer object for the shadow map rendering.

Definition at line 269 of file VR3ShadowController.h.

GLuint VR3ShadowController::ShadowSource::shadTex

Texture image OpenGL name where the shadow map is rendered.

Definition at line 273 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::vfvertices[8][3]

Shadow source view frustum vertices in world coordinates.

vfvertices[0] = lower left near vertex (from the source point of view) vfvertices[1] = lower right near vertex (from the source point of view) vfvertices[2] = top right near vertex (from the source point of view) vfvertices[3] = top left near vertex (from the source point of view) vfvertices[4] = lower left far vertex (from the source point of view) vfvertices[5] = lower right far vertex (from the source point of view) vfvertices[6] = top right far vertex (from the source point of view) vfvertices[7] = top left far vertex (from the source point of view)

Definition at line 304 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::viewmat[16]

Shadow source view matrix.

Definition at line 285 of file VR3ShadowController.h.

GLsizei VR3ShadowController::ShadowSource::width

Shadow map width in pixels.

Definition at line 312 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::zfar

Shadow source far clipping distance.

Definition at line 293 of file VR3ShadowController.h.

GLfloat VR3ShadowController::ShadowSource::znear

Shadow source near clipping distance.