sh_math.h File Reference

#include <cglm/cglm.h>

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Data Structures
struct	SH9

Functions
void	sh_zero (SH9 *sh_ptr)
	Initialize SH coefficients to zero. More...
void	sh_project_directional (const vec3 dir, const vec3 color, SH9 *out_sh)
	Projects a directional light into SH coefficients. More...
void	sh_eval_irradiance (const vec3 normal, const SH9 *sh_ptr, vec3 out_color)
	Evaluates the irradiance from SH coefficients in a given direction. More...

Function Documentation

sh_eval_irradiance()

void sh_eval_irradiance	(	const vec3	normal,
		const SH9 *	sh_ptr,
		vec3	out_color
	)

Evaluates the irradiance from SH coefficients in a given direction.

Parameters

normal	Normalized surface normal.
sh_ptr	Pointer to the SH structure.
out_color	Output color (vec3).

sh_project_directional()

void sh_project_directional	(	const vec3	dir,
		const vec3	color,
		SH9 *	out_sh
	)

Projects a directional light into SH coefficients.

Parameters

dir	Normalized direction vector pointing TOWARDS the light source.
color	Linear RGB color/intensity of the light.
out_sh	Pointer to the SH structure to accumulate into.

sh_zero()

void sh_zero

(

SH9 *

sh_ptr

)

Initialize SH coefficients to zero.