Public Member Functions
	SphericalHarmonics (const std::vector< irr::video::IImage * > &spherical_harmonics_textures)

	SphericalHarmonics (const irr::video::SColor &ambient)

void	setTextures (const std::vector< irr::video::IImage * > &spherical_harmonics_textures)
	Compute spherical harmonics coefficients from 6 textures.

void	setAmbientLight (const irr::video::SColor &ambient)
	Compute spherical harmonics coefficients from ambient light.

const SHCoefficients *	getCoefficients () const

bool	has6Textures () const

void	printCoeff ()
	Print spherical harmonics coefficients (debug)

void	unprojectSH (unsigned int width, unsigned int height, float Y00[], float Y1minus1[], float Y10[], float Y11[], float Y2minus2[], float Y2minus1[], float Y20[], float Y21[], float Y22[], float output[])
	Compute the the environment map from the spherical harmonics coefficients.

Private Member Functions
void	generateSphericalHarmonics (unsigned char *sh_rgba[6], unsigned int edge_size)
	Compute m_SH_coeff->red_SH_coeff, m_SH_coeff->green_SH_coeff and m_SH_coeff->blue_SH_coeff from Yml values.

Private Attributes
std::vector< irr::video::IImage * >	m_spherical_harmonics_textures
	The 6 spherical harmonics textures.

irr::video::SColor	m_ambient
	Ambient light is used for tracks without spherical harmonics textures.

SHCoefficients *	m_SH_coeff
	The spherical harmonics coefficients.

Member Function Documentation

◆ generateSphericalHarmonics()

void SphericalHarmonics::generateSphericalHarmonics	(	unsigned char *	sh_rgba[6],
		unsigned int	edge_size
	)

private

Compute m_SH_coeff->red_SH_coeff, m_SH_coeff->green_SH_coeff and m_SH_coeff->blue_SH_coeff from Yml values.

Parameters

sh_rgba	The 6 cubemap faces (sRGB byte textures)
edge_size	Size of the cubemap face

void SphericalHarmonics::unprojectSH	(	unsigned int	width,
		unsigned int	height,
		float *	Y00[],
		float *	Y1minus1[],
		float *	Y10[],
		float *	Y11[],
		float *	Y2minus2[],
		float *	Y2minus1[],
		float *	Y20[],
		float *	Y21[],
		float *	Y22[],
		float *	output[]
	)

Compute the the environment map from the spherical harmonics coefficients.

Parameters

	width	The texture width
	height	The texture height
	Yml	The sphericals harmonics functions values
[out]	output	The environment map texels values

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