#include "BKE_studiolight.h"
#include "BKE_appdir.h"
#include "BKE_icons.h"
#include "BLI_dynstr.h"
#include "BLI_fileops.h"
#include "BLI_fileops_types.h"
#include "BLI_linklist.h"
#include "BLI_listbase.h"
#include "BLI_math.h"
#include "BLI_math_color.h"
#include "BLI_path_util.h"
#include "BLI_string.h"
#include "BLI_string_utils.h"
#include "DNA_listBase.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "GPU_texture.h"
#include "MEM_guardedalloc.h"
#include "intern/openexr/openexr_multi.h"

Classes
struct	MultilayerConvertContext

Macros
#define	STUDIOLIGHT_RADIANCE_CUBEMAP_SIZE 96

#define	STUDIOLIGHT_IRRADIANCE_EQUIRECT_HEIGHT 32

#define	STUDIOLIGHT_IRRADIANCE_EQUIRECT_WIDTH (STUDIOLIGHT_IRRADIANCE_EQUIRECT_HEIGHT * 2)

#define	STUDIOLIGHT_PASSNAME_DIFFUSE "diffuse"

#define	STUDIOLIGHT_PASSNAME_SPECULAR "specular"

#define	STUDIOLIGHT_SH_WINDOWING 0.0f /* 0.0 is disabled */

#define	STUDIOLIGHT_LOAD_CACHED_FILES

#define	ITER_PIXELS(type, src, channels, width, height)

#define	ITER_PIXELS_END

#define	IMB_SAFE_FREE(p)

#define	GPU_TEXTURE_SAFE_FREE(p)

#define	STUDIOLIGHT_DELETE_ICON(s)

#define	STUDIOLIGHT_FILE_VERSION 1

#define	READ_VAL(type, parser, id, val, lines)

#define	READ_FVAL(id, val, lines) READ_VAL(float, atof, id, val, lines)

#define	READ_IVAL(id, val, lines) READ_VAL(int, atoi, id, val, lines)

#define	READ_VEC3(id, val, lines)

#define	READ_SOLIDLIGHT(sl, i, lines)

#define	WRITE_FVAL(str, id, val) (BLI_dynstr_appendf(str, id " %f\n", val))

#define	WRITE_IVAL(str, id, val) (BLI_dynstr_appendf(str, id " %d\n", val))

#define	WRITE_VEC3(str, id, val)

#define	WRITE_SOLIDLIGHT(str, sl, i)

#define	STUDIOLIGHT_DIAMETER 0.95f

#define	RESCALE_COORD(x) (x / STUDIOLIGHT_DIAMETER - (1.0f - STUDIOLIGHT_DIAMETER) / 2.0f)

Typedefs
typedef struct MultilayerConvertContext	MultilayerConvertContext

Functions
static void	studiolight_free (struct StudioLight *sl)

static struct StudioLight *	studiolight_create (int flag)

static void	studiolight_load_solid_light (StudioLight *sl)

static void	studiolight_write_solid_light (StudioLight *sl)

static void	direction_to_equirect (float r[2], const float dir[3])

static void	equirect_to_direction (float r[3], float u, float v)

static void UNUSED_FUNCTION()	direction_to_cube_face_uv (float r_uv[2], int *r_face, const float dir[3])

static void	cube_face_uv_to_direction (float r_dir[3], float x, float y, int face)

static void *	studiolight_multilayer_addview (void UNUSED(base), const char UNUSED(view_name))

static void *	studiolight_multilayer_addlayer (void base, const char UNUSED(layer_name))

static float *	studiolight_multilayer_convert_pass (ImBuf ibuf, float rect, const unsigned int channels)

static void	studiolight_multilayer_addpass (void base, void UNUSED(lay), const char pass_name, float rect, int num_channels, const char UNUSED(chan_id), const char UNUSED(view_name))

static void	studiolight_load_equirect_image (StudioLight *sl)

static void	studiolight_create_equirect_radiance_gputexture (StudioLight *sl)

static void	studiolight_create_matcap_gputexture (StudioLightImage *sli)

static void	studiolight_create_matcap_diffuse_gputexture (StudioLight *sl)

static void	studiolight_create_matcap_specular_gputexture (StudioLight *sl)

static void	studiolight_create_equirect_irradiance_gputexture (StudioLight *sl)

static void	studiolight_calculate_radiance (ImBuf *ibuf, float color[4], const float direction[3])

static void	studiolight_calculate_radiance_buffer (ImBuf ibuf, float colbuf, const int index_x, const int index_y, const int index_z, const float xsign, const float ysign, const float zsign)

static void	studiolight_calculate_radiance_cubemap_buffers (StudioLight *sl)

BLI_INLINE float	area_element (float x, float y)

BLI_INLINE float	texel_solid_angle (float x, float y, float halfpix)

static void	studiolight_calculate_cubemap_vector_weight (float normal[3], float *weight, int face, float x, float y)

static void	studiolight_spherical_harmonics_calculate_coefficients (StudioLight sl, float(sh)[3])

static float	studiolight_spherical_harmonics_lambda_get (float *sh, float max_laplacian)

static void	studiolight_spherical_harmonics_apply_windowing (float(*sh)[3], float max_laplacian)

static float	studiolight_spherical_harmonics_geomerics_eval (const float normal[3], float sh0, float sh1, float sh2, float sh3)

BLI_INLINE void	studiolight_spherical_harmonics_eval (StudioLight *sl, float color[3], const float normal[3])

static void	studiolight_spherical_harmonics_apply_band_factors (StudioLight sl, float(sh)[3])

static void	studiolight_calculate_diffuse_light (StudioLight *sl)

BLI_INLINE void	studiolight_evaluate_specular_radiance_buffer (ImBuf *radiance_buffer, const float normal[3], float color[3], int xoffset, int yoffset, int zoffset, float zsign)

static float	brdf_approx (float spec_color, float roughness, float NV)

static float	wrapped_lighting (float NL, float w)

static float	blinn_specular (const float L[3], const float I[3], const float N[3], const float R[3], float NL, float roughness, float wrap)

static void	studiolight_lights_eval (StudioLight *sl, float color[3], const float normal[3])

static bool	studiolight_load_irradiance_equirect_image (StudioLight *sl)

static bool	studiolight_load_spherical_harmonics_coefficients (StudioLight *sl)

static void	studiolight_calculate_irradiance_equirect_image (StudioLight *sl)

static StudioLight *	studiolight_add_file (const char *path, int flag)

static void	studiolight_add_files_from_datafolder (const int folder_id, const char *subfolder, int flag)

static int	studiolight_flag_cmp_order (const StudioLight *sl)

static int	studiolight_cmp (const void a, const void b)

static uint	alpha_circle_mask (float u, float v, float inner_edge, float outer_edge)

static void	sphere_normal_from_uv (float normal[3], float u, float v)

static void	studiolight_radiance_preview (uint icon_buffer, StudioLight sl)

static void	studiolight_matcap_preview (uint icon_buffer, StudioLight sl, bool flipped)

static void	studiolight_irradiance_preview (uint icon_buffer, StudioLight sl)

void	BKE_studiolight_default (SolidLight lights[4], float light_ambient[4])

void	BKE_studiolight_init (void)

void	BKE_studiolight_free (void)

struct StudioLight *	BKE_studiolight_find_default (int flag)

struct StudioLight *	BKE_studiolight_find (const char *name, int flag)

struct StudioLight *	BKE_studiolight_findindex (int index, int flag)

struct ListBase *	BKE_studiolight_listbase (void)

void	BKE_studiolight_preview (uint icon_buffer, StudioLight sl, int icon_id_type)

void	BKE_studiolight_ensure_flag (StudioLight *sl, int flag)

void	BKE_studiolight_remove (StudioLight *sl)

StudioLight *	BKE_studiolight_load (const char *path, int type)

StudioLight *	BKE_studiolight_create (const char *path, const SolidLight light[4], const float light_ambient[3])

StudioLight *	BKE_studiolight_studio_edit_get (void)

void	BKE_studiolight_refresh (void)

void	BKE_studiolight_set_free_function (StudioLight sl, StudioLightFreeFunction free_function, void *data)

void	BKE_studiolight_unset_icon_id (StudioLight *sl, int icon_id)

Variables
static ListBase	studiolights

static int	last_studiolight_id = 0

static const char *	STUDIOLIGHT_LIGHTS_FOLDER = "studiolights/studio/"

static const char *	STUDIOLIGHT_WORLD_FOLDER = "studiolights/world/"

static const char *	STUDIOLIGHT_MATCAP_FOLDER = "studiolights/matcap/"

static const char *	STUDIOLIGHT_WORLD_DEFAULT = "forest.exr"

static const char *	STUDIOLIGHT_MATCAP_DEFAULT = "basic_1.exr"

Macro Definition Documentation

◆ GPU_TEXTURE_SAFE_FREE

#define GPU_TEXTURE_SAFE_FREE ( p )

Value:

  do { \
    if (p) { \
      GPU_texture_free(p); \
      p = NULL; \
    } \
  } while (0)

Definition at line 115 of file studiolight.c.

◆ IMB_SAFE_FREE

#define IMB_SAFE_FREE ( p )

Value:

  do { \
    if (p) { \
      IMB_freeImBuf(p); \
      p = NULL; \
    } \
  } while (0)

Definition at line 107 of file studiolight.c.

◆ ITER_PIXELS

#define ITER_PIXELS	(	type,
		src,
		channels,
		width,
		height
	)

Value:

  { \
    float texel_size[2]; \
    texel_size[0] = 1.0f / width; \
    texel_size[1] = 1.0f / height; \
    type(*pixel_)[channels] = (type(*)[channels])src; \
    for (float y = 0.5 * texel_size[1]; y < 1.0; y += texel_size[1]) { \
      for (float x = 0.5 * texel_size[0]; x < 1.0; x += texel_size[0], pixel_++) { \
        type *pixel = *pixel_;

Iter on all pixel giving texel center position and pixel pointer.

Arguments type : type of src. src : source buffer. channels : number of channels per pixel.

Others x, y : normalized UV coordinate [0..1] of the current pixel center. texel_size[2] : UV size of a pixel in this texture. pixel[] : pointer to the current pixel.

Definition at line 90 of file studiolight.c.

◆ ITER_PIXELS_END

#define ITER_PIXELS_END

Value:

  } \
  } \
  } \
  ((void)0)

Definition at line 100 of file studiolight.c.

◆ READ_FVAL

#define READ_FVAL	(	id,
		val,
		lines
	)	READ_VAL(float, atof, id, val, lines)

Definition at line 200 of file studiolight.c.

◆ READ_IVAL

#define READ_IVAL	(	id,
		val,
		lines
	)	READ_VAL(int, atoi, id, val, lines)

Definition at line 201 of file studiolight.c.

◆ READ_SOLIDLIGHT

#define READ_SOLIDLIGHT	(	sl,
		i,
		lines
	)

Value:

  do { \
    READ_IVAL("light[" STRINGIFY(i) "].flag", sl[i].flag, lines); \
    READ_FVAL("light[" STRINGIFY(i) "].smooth", sl[i].smooth, lines); \
    READ_VEC3("light[" STRINGIFY(i) "].col", sl[i].col, lines); \
    READ_VEC3("light[" STRINGIFY(i) "].spec", sl[i].spec, lines); \
    READ_VEC3("light[" STRINGIFY(i) "].vec", sl[i].vec, lines); \
  } while (0)

Definition at line 210 of file studiolight.c.

◆ READ_VAL

#define READ_VAL	(	type,
		parser,
		id,
		val,
		lines
	)

Value:

  do { \
    for (LinkNode *line = lines; line; line = line->next) { \
      char *val_str, *str = line->link; \
      if ((val_str = strstr(str, id " "))) { \
        val_str += sizeof(id); /* Skip id + spacer. */ \
        val = parser(val_str); \
      } \
    } \
  } while (0)

Definition at line 189 of file studiolight.c.

◆ READ_VEC3

#define READ_VEC3	(	id,
		val,
		lines
	)

Value:

  do { \
    READ_FVAL(id ".x", val[0], lines); \
    READ_FVAL(id ".y", val[1], lines); \
    READ_FVAL(id ".z", val[2], lines); \
  } while (0)

Definition at line 203 of file studiolight.c.

◆ RESCALE_COORD

#define RESCALE_COORD ( x ) (x / STUDIOLIGHT_DIAMETER - (1.0f - STUDIOLIGHT_DIAMETER) / 2.0f)

Definition at line 1249 of file studiolight.c.

◆ STUDIOLIGHT_DELETE_ICON

#define STUDIOLIGHT_DELETE_ICON ( s )

Value:

  do { \
    if (s != 0) { \
      BKE_icon_delete(s); \
      s = 0; \
    } \
  } while (0)

◆ STUDIOLIGHT_DIAMETER

#define STUDIOLIGHT_DIAMETER 0.95f

Definition at line 1247 of file studiolight.c.

◆ STUDIOLIGHT_FILE_VERSION

#define STUDIOLIGHT_FILE_VERSION 1

Definition at line 187 of file studiolight.c.

◆ STUDIOLIGHT_IRRADIANCE_EQUIRECT_HEIGHT

#define STUDIOLIGHT_IRRADIANCE_EQUIRECT_HEIGHT 32

Definition at line 55 of file studiolight.c.

◆ STUDIOLIGHT_IRRADIANCE_EQUIRECT_WIDTH

#define STUDIOLIGHT_IRRADIANCE_EQUIRECT_WIDTH (STUDIOLIGHT_IRRADIANCE_EQUIRECT_HEIGHT * 2)

Definition at line 56 of file studiolight.c.

◆ STUDIOLIGHT_LOAD_CACHED_FILES

#define STUDIOLIGHT_LOAD_CACHED_FILES

Definition at line 66 of file studiolight.c.

◆ STUDIOLIGHT_PASSNAME_DIFFUSE

#define STUDIOLIGHT_PASSNAME_DIFFUSE "diffuse"

Definition at line 57 of file studiolight.c.

◆ STUDIOLIGHT_PASSNAME_SPECULAR

#define STUDIOLIGHT_PASSNAME_SPECULAR "specular"

Definition at line 58 of file studiolight.c.

◆ STUDIOLIGHT_RADIANCE_CUBEMAP_SIZE

#define STUDIOLIGHT_RADIANCE_CUBEMAP_SIZE 96

Definition at line 54 of file studiolight.c.

◆ STUDIOLIGHT_SH_WINDOWING

#define STUDIOLIGHT_SH_WINDOWING 0.0f /* 0.0 is disabled */

Definition at line 60 of file studiolight.c.

◆ WRITE_FVAL

#define WRITE_FVAL	(	str,
		id,
		val
	)	(BLI_dynstr_appendf(str, id " %f\n", val))

Definition at line 237 of file studiolight.c.

◆ WRITE_IVAL

#define WRITE_IVAL	(	str,
		id,
		val
	)	(BLI_dynstr_appendf(str, id " %d\n", val))

Definition at line 238 of file studiolight.c.

◆ WRITE_SOLIDLIGHT

#define WRITE_SOLIDLIGHT	(	str,
		sl,
		i
	)

Value:

  do { \
    WRITE_IVAL(str, "light[" STRINGIFY(i) "].flag", sl[i].flag); \
    WRITE_FVAL(str, "light[" STRINGIFY(i) "].smooth", sl[i].smooth); \
    WRITE_VEC3(str, "light[" STRINGIFY(i) "].col", sl[i].col); \
    WRITE_VEC3(str, "light[" STRINGIFY(i) "].spec", sl[i].spec); \
    WRITE_VEC3(str, "light[" STRINGIFY(i) "].vec", sl[i].vec); \
  } while (0)

Definition at line 247 of file studiolight.c.

◆ WRITE_VEC3

#define WRITE_VEC3	(	str,
		id,
		val
	)

Value:

  do { \
    WRITE_FVAL(str, id ".x", val[0]); \
    WRITE_FVAL(str, id ".y", val[1]); \
    WRITE_FVAL(str, id ".z", val[2]); \
  } while (0)

Definition at line 240 of file studiolight.c.

Typedef Documentation

◆ MultilayerConvertContext

typedef struct MultilayerConvertContext MultilayerConvertContext

Function Documentation

◆ alpha_circle_mask()

static uint alpha_circle_mask	(	float	u,
		float	v,
		float	inner_edge,
		float	outer_edge
	)

static

Definition at line 1236 of file studiolight.c.

References alpha, floorf, len_v2(), mask(), max_ff(), min_ff(), and v.

Referenced by studiolight_irradiance_preview(), studiolight_matcap_preview(), and studiolight_radiance_preview().

◆ area_element()

BLI_INLINE float area_element	(	float	x,
		float	y
	)

Definition at line 662 of file studiolight.c.

References KDL::atan2(), sqrtf, x, and y.

Referenced by texel_solid_angle().

◆ BKE_studiolight_create()

StudioLight* BKE_studiolight_create	(	const char *	path,
		const SolidLight	light[4],
		const float	light_ambient[3]
	)

Definition at line 1592 of file studiolight.c.

References BLI_addtail(), BLI_split_file_part(), FILE_MAXFILE, StudioLight::light, StudioLight::light_ambient, StudioLight::name, StudioLight::path, STRNCPY, studiolight_create(), STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_SPECULAR_HIGHLIGHT_PASS, STUDIOLIGHT_TYPE_STUDIO, STUDIOLIGHT_USER_DEFINED, studiolight_write_solid_light(), and studiolights.

◆ BKE_studiolight_default()

void BKE_studiolight_default	(	SolidLight	lights[4],
		float	light_ambient[4]
	)

Definition at line 1355 of file studiolight.c.

References SolidLight::col, copy_v3_fl3(), SolidLight::flag, SolidLight::smooth, SolidLight::spec, and SolidLight::vec.

Referenced by BKE_blendfile_userdef_from_defaults(), and BKE_studiolight_init().

◆ BKE_studiolight_ensure_flag()

void BKE_studiolight_ensure_flag	(	StudioLight *	sl,
		int	flag
	)

Definition at line 1539 of file studiolight.c.

References StudioLight::flag, studiolight_calculate_diffuse_light(), studiolight_calculate_irradiance_equirect_image(), studiolight_calculate_radiance_cubemap_buffers(), studiolight_create_equirect_irradiance_gputexture(), studiolight_create_equirect_radiance_gputexture(), studiolight_create_matcap_diffuse_gputexture(), studiolight_create_matcap_specular_gputexture(), STUDIOLIGHT_EQUIRECT_IRRADIANCE_GPUTEXTURE, STUDIOLIGHT_EQUIRECT_IRRADIANCE_IMAGE_CALCULATED, STUDIOLIGHT_EQUIRECT_RADIANCE_GPUTEXTURE, STUDIOLIGHT_EXTERNAL_IMAGE_LOADED, studiolight_load_equirect_image(), studiolight_load_irradiance_equirect_image(), studiolight_load_spherical_harmonics_coefficients(), STUDIOLIGHT_MATCAP_DIFFUSE_GPUTEXTURE, STUDIOLIGHT_MATCAP_SPECULAR_GPUTEXTURE, STUDIOLIGHT_RADIANCE_BUFFERS_CALCULATED, and STUDIOLIGHT_SPHERICAL_HARMONICS_COEFFICIENTS_CALCULATED.

Referenced by EEVEE_lookdev_cache_init(), studiolight_calculate_diffuse_light(), studiolight_calculate_irradiance_equirect_image(), studiolight_calculate_radiance_cubemap_buffers(), studiolight_create_equirect_irradiance_gputexture(), studiolight_create_equirect_radiance_gputexture(), studiolight_create_matcap_diffuse_gputexture(), studiolight_create_matcap_specular_gputexture(), studiolight_matcap_preview(), studiolight_radiance_preview(), workbench_opaque_cache_init(), and workbench_transparent_lighting_uniforms().

◆ BKE_studiolight_find()

struct StudioLight* BKE_studiolight_find	(	const char *	name,
		int	flag
	)

Definition at line 1483 of file studiolight.c.

References BKE_studiolight_find_default(), FILE_MAXFILE, StudioLight::flag, LISTBASE_FOREACH, StudioLight::name, STREQLEN, and studiolights.

Referenced by blo_do_versions_280(), EEVEE_lookdev_cache_init(), and workbench_private_data_init().

◆ BKE_studiolight_find_default()

struct StudioLight* BKE_studiolight_find_default ( int flag )

Definition at line 1458 of file studiolight.c.

References StudioLight::flag, LISTBASE_FOREACH, StudioLight::name, NULL, STREQ, STUDIOLIGHT_MATCAP_DEFAULT, STUDIOLIGHT_TYPE_MATCAP, STUDIOLIGHT_TYPE_WORLD, STUDIOLIGHT_WORLD_DEFAULT, and studiolights.

Referenced by BKE_studiolight_find(), BKE_studiolight_findindex(), and blo_do_versions_280().

◆ BKE_studiolight_findindex()

struct StudioLight* BKE_studiolight_findindex	(	int	index,
		int	flag
	)

Definition at line 1499 of file studiolight.c.

References BKE_studiolight_find_default(), StudioLight::flag, StudioLight::index, LISTBASE_FOREACH, and studiolights.

◆ BKE_studiolight_free()

void BKE_studiolight_free ( void )

Definition at line 1450 of file studiolight.c.

References BLI_pophead(), studiolight_free(), and studiolights.

Referenced by BKE_blender_free(), and BKE_studiolight_refresh().

◆ BKE_studiolight_init()

void BKE_studiolight_init ( void )

◆ BKE_studiolight_listbase()

struct ListBase* BKE_studiolight_listbase ( void )

Definition at line 1510 of file studiolight.c.

References studiolights.

◆ BKE_studiolight_load()

StudioLight* BKE_studiolight_load	(	const char *	path,
		int	type
	)

Definition at line 1586 of file studiolight.c.

References studiolight_add_file(), STUDIOLIGHT_USER_DEFINED, and type.

◆ BKE_studiolight_preview()

void BKE_studiolight_preview	(	uint *	icon_buffer,
		StudioLight *	sl,
		int	icon_id_type
	)

Definition at line 1515 of file studiolight.c.

References STUDIOLIGHT_ICON_ID_TYPE_IRRADIANCE, STUDIOLIGHT_ICON_ID_TYPE_MATCAP, STUDIOLIGHT_ICON_ID_TYPE_MATCAP_FLIPPED, STUDIOLIGHT_ICON_ID_TYPE_RADIANCE, studiolight_irradiance_preview(), studiolight_matcap_preview(), and studiolight_radiance_preview().

Referenced by ui_studiolight_icon_job_exec().

◆ BKE_studiolight_refresh()

void BKE_studiolight_refresh ( void )

Definition at line 1626 of file studiolight.c.

References BKE_studiolight_free(), and BKE_studiolight_init().

◆ BKE_studiolight_remove()

void BKE_studiolight_remove ( StudioLight * sl )

Definition at line 1578 of file studiolight.c.

References BLI_remlink(), StudioLight::flag, studiolight_free(), STUDIOLIGHT_USER_DEFINED, and studiolights.

◆ BKE_studiolight_set_free_function()

void BKE_studiolight_set_free_function	(	StudioLight *	sl,
		StudioLightFreeFunction *	free_function,
		void *	data
	)

Definition at line 1632 of file studiolight.c.

References data, StudioLight::free_function, and StudioLight::free_function_data.

Referenced by ui_icon_ensure_deferred(), and ui_studiolight_icon_job_end().

◆ BKE_studiolight_studio_edit_get()

StudioLight* BKE_studiolight_studio_edit_get ( void )

Definition at line 1615 of file studiolight.c.

References StudioLight::flag, StudioLight::light, StudioLight::light_ambient, STUDIOLIGHT_SPECULAR_HIGHLIGHT_PASS, and STUDIOLIGHT_TYPE_STUDIO.

Referenced by workbench_studiolight_data_update().

◆ BKE_studiolight_unset_icon_id()

void BKE_studiolight_unset_icon_id	(	StudioLight *	sl,
		int	icon_id
	)

Definition at line 1640 of file studiolight.c.

References BLI_assert, StudioLight::icon_id_irradiance, StudioLight::icon_id_matcap, StudioLight::icon_id_matcap_flipped, StudioLight::icon_id_radiance, and NULL.

Referenced by icon_free_data().

◆ blinn_specular()

static float blinn_specular	(	const float	L[3],
		const float	I[3],
		const float	N[3],
		const float	R[3],
		float	NL,
		float	roughness,
		float	wrap
	)

static

Definition at line 1021 of file studiolight.c.

References add_v3_v3v3(), dot_v3v3(), I, L, max_ff(), N, NL, normalize_v3(), powf, R, usdtokens::roughness(), w(), blender::gpu::wrap(), and wrapped_lighting().

Referenced by studiolight_lights_eval().

◆ brdf_approx()

static float brdf_approx	(	float	spec_color,
		float	roughness,
		float	NV
	)

static

Definition at line 1006 of file studiolight.c.

References usdtokens::roughness().

Referenced by studiolight_lights_eval().

◆ cube_face_uv_to_direction()

static void cube_face_uv_to_direction	(	float	r_dir[3],
		float	x,
		float	y,
		int	face
	)

static

Definition at line 327 of file studiolight.c.

References copy_v3_fl3(), mul_m3_v3(), normalize_v3(), x, and y.

Referenced by studiolight_calculate_cubemap_vector_weight().

◆ direction_to_cube_face_uv()

static void UNUSED_FUNCTION() direction_to_cube_face_uv	(	float	r_uv[2],
		int *	r_face,
		const float	dir[3]
	)

static

Definition at line 301 of file studiolight.c.

References fabsf, STUDIOLIGHT_X_NEG, STUDIOLIGHT_X_POS, STUDIOLIGHT_Y_NEG, STUDIOLIGHT_Y_POS, STUDIOLIGHT_Z_NEG, and STUDIOLIGHT_Z_POS.

◆ direction_to_equirect()

static void direction_to_equirect	(	float	r[2],
		const float	dir[3]
	)

static

Definition at line 285 of file studiolight.c.

References acosf, atan2f, M_PI, and r.

Referenced by studiolight_calculate_radiance().

◆ equirect_to_direction()

static void equirect_to_direction	(	float	r[3],
		float	u,
		float	v
	)

static

Definition at line 291 of file studiolight.c.

References cosf, M_PI, r, sinf, and v.

Referenced by studiolight_calculate_irradiance_equirect_image().

◆ sphere_normal_from_uv()

static void sphere_normal_from_uv	(	float	normal[3],
		float	u,
		float	v
	)

static

Definition at line 1252 of file studiolight.c.

References len_v2(), normal, sqrtf, square_f(), and v.

Referenced by studiolight_irradiance_preview(), and studiolight_radiance_preview().

◆ studiolight_add_file()

static StudioLight* studiolight_add_file	(	const char *	path,
		int	flag
	)

static

◆ studiolight_add_files_from_datafolder()

static void studiolight_add_files_from_datafolder	(	const int	folder_id,
		const char *	subfolder,
		int	flag
	)

static

Definition at line 1185 of file studiolight.c.

References BKE_appdir_folder_id(), BLI_filelist_dir_contents(), BLI_filelist_free(), NULL, direntry::path, studiolight_add_file(), and type.

Referenced by BKE_studiolight_init().

◆ studiolight_calculate_cubemap_vector_weight()

static void studiolight_calculate_cubemap_vector_weight	(	float	normal[3],
		float *	weight,
		int	face,
		float	x,
		float	y
	)

static

Definition at line 678 of file studiolight.c.

References cube_face_uv_to_direction(), normal, STUDIOLIGHT_RADIANCE_CUBEMAP_SIZE, texel_solid_angle(), x, and y.

Referenced by studiolight_spherical_harmonics_calculate_coefficients().

◆ studiolight_calculate_diffuse_light()

static void studiolight_calculate_diffuse_light ( StudioLight * sl )

static

Definition at line 950 of file studiolight.c.

References BKE_studiolight_ensure_flag(), BLI_fopen(), StudioLight::flag, StudioLight::path_sh_cache, StudioLight::spherical_harmonics_coefs, STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_RADIANCE_BUFFERS_CALCULATED, STUDIOLIGHT_SH_COEFS_LEN, STUDIOLIGHT_SH_WINDOWING, studiolight_spherical_harmonics_apply_band_factors(), studiolight_spherical_harmonics_apply_windowing(), studiolight_spherical_harmonics_calculate_coefficients(), STUDIOLIGHT_SPHERICAL_HARMONICS_COEFFICIENTS_CALCULATED, and STUDIOLIGHT_USER_DEFINED.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_calculate_irradiance_equirect_image()

static void studiolight_calculate_irradiance_equirect_image ( StudioLight * sl )

static

◆ studiolight_calculate_radiance()

static void studiolight_calculate_radiance	(	ImBuf *	ibuf,
		float	color[4],
		const float	direction[3]
	)

static

Definition at line 566 of file studiolight.c.

References direction_to_equirect(), nearest_interpolation_color_wrap(), NULL, ImBuf::x, and ImBuf::y.

Referenced by studiolight_calculate_radiance_buffer(), and studiolight_radiance_preview().

◆ studiolight_calculate_radiance_buffer()

static void studiolight_calculate_radiance_buffer	(	ImBuf *	ibuf,
		float *	colbuf,
		const int	index_x,
		const int	index_y,
		const int	index_z,
		const float	xsign,
		const float	ysign,
		const float	zsign
	)

static

Definition at line 573 of file studiolight.c.

References ITER_PIXELS, ITER_PIXELS_END, normalize_v3(), studiolight_calculate_radiance(), STUDIOLIGHT_RADIANCE_CUBEMAP_SIZE, x, and y.

Referenced by studiolight_calculate_radiance_cubemap_buffers().

◆ studiolight_calculate_radiance_cubemap_buffers()

static void studiolight_calculate_radiance_cubemap_buffers ( StudioLight * sl )

static

◆ studiolight_cmp()

static int studiolight_cmp	(	const void *	a,
		const void *	b
	)

static

Definition at line 1213 of file studiolight.c.

References Freestyle::a, BLI_strcasecmp(), StudioLight::name, and studiolight_flag_cmp_order().

Referenced by BKE_studiolight_init().

◆ studiolight_create()

static struct StudioLight* studiolight_create ( int flag )

static

◆ studiolight_create_equirect_irradiance_gputexture()

static void studiolight_create_equirect_irradiance_gputexture ( StudioLight * sl )

static

Definition at line 552 of file studiolight.c.

References BKE_studiolight_ensure_flag(), StudioLight::equirect_irradiance_buffer, StudioLight::equirect_irradiance_gputexture, StudioLight::flag, GPU_RGBA16F, GPU_texture_create_2d(), GPU_texture_filter_mode(), GPU_texture_wrap_mode(), ImBuf::rect_float, STUDIOLIGHT_EQUIRECT_IRRADIANCE_GPUTEXTURE, STUDIOLIGHT_EQUIRECT_IRRADIANCE_IMAGE_CALCULATED, STUDIOLIGHT_EXTERNAL_FILE, tex, ImBuf::x, and ImBuf::y.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_create_equirect_radiance_gputexture()

static void studiolight_create_equirect_radiance_gputexture ( StudioLight * sl )

static

Definition at line 496 of file studiolight.c.

References BKE_studiolight_ensure_flag(), StudioLight::equirect_radiance_buffer, StudioLight::equirect_radiance_gputexture, StudioLight::flag, GPU_RGBA16F, GPU_texture_create_2d(), GPU_texture_filter_mode(), GPU_texture_wrap_mode(), ImBuf::rect_float, STUDIOLIGHT_EQUIRECT_RADIANCE_GPUTEXTURE, STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_EXTERNAL_IMAGE_LOADED, tex, ImBuf::x, and ImBuf::y.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_create_matcap_diffuse_gputexture()

static void studiolight_create_matcap_diffuse_gputexture ( StudioLight * sl )

static

Definition at line 529 of file studiolight.c.

References BKE_studiolight_ensure_flag(), StudioLight::flag, StudioLight::matcap_diffuse, studiolight_create_matcap_gputexture(), STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_EXTERNAL_IMAGE_LOADED, STUDIOLIGHT_MATCAP_DIFFUSE_GPUTEXTURE, and STUDIOLIGHT_TYPE_MATCAP.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_create_matcap_gputexture()

static void studiolight_create_matcap_gputexture ( StudioLightImage * sli )

static

Definition at line 511 of file studiolight.c.

References BLI_assert, copy_v3_v3(), float(), GPU_DATA_FLOAT, GPU_R11F_G11F_B10F, GPU_texture_create_2d(), GPU_texture_update(), StudioLightImage::gputexture, StudioLightImage::ibuf, MEM_callocN, MEM_SAFE_FREE, NULL, ImBuf::rect_float, ImBuf::x, and ImBuf::y.

Referenced by studiolight_create_matcap_diffuse_gputexture(), and studiolight_create_matcap_specular_gputexture().

◆ studiolight_create_matcap_specular_gputexture()

static void studiolight_create_matcap_specular_gputexture ( StudioLight * sl )

static

Definition at line 539 of file studiolight.c.

References BKE_studiolight_ensure_flag(), StudioLight::flag, StudioLightImage::ibuf, StudioLight::matcap_specular, studiolight_create_matcap_gputexture(), STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_EXTERNAL_IMAGE_LOADED, STUDIOLIGHT_MATCAP_SPECULAR_GPUTEXTURE, and STUDIOLIGHT_TYPE_MATCAP.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_evaluate_specular_radiance_buffer()

BLI_INLINE void studiolight_evaluate_specular_radiance_buffer	(	ImBuf *	radiance_buffer,
		const float	normal[3],
		float	color[3],
		int	xoffset,
		int	yoffset,
		int	zoffset,
		float	zsign
	)

Definition at line 972 of file studiolight.c.

References dot_v3v3(), ITER_PIXELS, ITER_PIXELS_END, madd_v3_v3fl(), normal, normalize_v3(), NULL, ImBuf::rect_float, STUDIOLIGHT_RADIANCE_CUBEMAP_SIZE, x, and y.

◆ studiolight_flag_cmp_order()

static int studiolight_flag_cmp_order ( const StudioLight * sl )

static

Definition at line 1204 of file studiolight.c.

References StudioLight::flag, and STUDIOLIGHT_EXTERNAL_FILE.

Referenced by studiolight_cmp().

◆ studiolight_free()

static void studiolight_free ( struct StudioLight * sl )

static

◆ studiolight_irradiance_preview()

static void studiolight_irradiance_preview	(	uint *	icon_buffer,
		StudioLight *	sl
	)

static

Definition at line 1327 of file studiolight.c.

References alpha_circle_mask(), ITER_PIXELS, ITER_PIXELS_END, linearrgb_to_srgb(), normal, RESCALE_COORD, rgb_to_cpack(), sphere_normal_from_uv(), STUDIOLIGHT_ICON_SIZE, studiolight_lights_eval(), SWAP, texel_size, x, and y.

Referenced by BKE_studiolight_preview().

◆ studiolight_lights_eval()

static void studiolight_lights_eval	(	StudioLight *	sl,
		float	color[3],
		const float	normal[3]
	)

static

Definition at line 1055 of file studiolight.c.

References add_v3_v3v3(), blinn_specular(), brdf_approx(), SolidLight::col, copy_v3_v3(), KDL::diff(), usdtokens::diffuse_color(), dot_v3v3(), SolidLight::flag, I, StudioLight::light, StudioLight::light_ambient, madd_v3_v3fl(), mul_v3_fl(), N, NL, normal, R, reflect_v3_v3v3(), usdtokens::roughness(), SolidLight::smooth, SolidLight::spec, STUDIOLIGHT_MAX_LIGHT, SolidLight::vec, and wrapped_lighting().

Referenced by studiolight_irradiance_preview().

◆ studiolight_load_equirect_image()

static void studiolight_load_equirect_image ( StudioLight * sl )

static

Definition at line 412 of file studiolight.c.

References MultilayerConvertContext::diffuse_pass, StudioLight::equirect_radiance_buffer, StudioLight::flag, ImBuf::ftype, IB_multilayer, StudioLightImage::ibuf, IMB_allocFromBuffer(), IMB_exr_close(), IMB_exr_multilayer_convert(), IMB_float_from_rect(), IMB_freeImBuf(), IMB_FTYPE_OPENEXR, IMB_loadiffname(), StudioLight::matcap_diffuse, StudioLight::matcap_specular, MEM_freeN, NULL, MultilayerConvertContext::num_diffuse_channels, MultilayerConvertContext::num_specular_channels, StudioLight::path, MultilayerConvertContext::specular_pass, STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_EXTERNAL_IMAGE_LOADED, studiolight_multilayer_addlayer(), studiolight_multilayer_addpass(), studiolight_multilayer_addview(), studiolight_multilayer_convert_pass(), STUDIOLIGHT_SPECULAR_HIGHLIGHT_PASS, STUDIOLIGHT_TYPE_MATCAP, ImBuf::userdata, ImBuf::x, and ImBuf::y.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_load_irradiance_equirect_image()

static bool studiolight_load_irradiance_equirect_image ( StudioLight * sl )

static

Definition at line 1088 of file studiolight.c.

References StudioLight::equirect_irradiance_buffer, StudioLight::flag, IMB_float_from_rect(), IMB_loadiffname(), NULL, StudioLight::path_irr_cache, STUDIOLIGHT_EQUIRECT_IRRADIANCE_IMAGE_CALCULATED, STUDIOLIGHT_EXTERNAL_FILE, and UNUSED_VARS.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_load_solid_light()

static void studiolight_load_solid_light ( StudioLight * sl )

static

Definition at line 219 of file studiolight.c.

References BLI_file_free_lines(), BLI_file_read_as_lines(), StudioLight::light, StudioLight::light_ambient, StudioLight::path, READ_SOLIDLIGHT, and READ_VEC3.

Referenced by studiolight_add_file().

◆ studiolight_load_spherical_harmonics_coefficients()

static bool studiolight_load_spherical_harmonics_coefficients ( StudioLight * sl )

static

Definition at line 1107 of file studiolight.c.

References BLI_fopen(), StudioLight::flag, StudioLight::path_sh_cache, StudioLight::spherical_harmonics_coefs, STUDIOLIGHT_EXTERNAL_FILE, STUDIOLIGHT_SPHERICAL_HARMONICS_COEFFICIENTS_CALCULATED, and UNUSED_VARS.

Referenced by BKE_studiolight_ensure_flag().

◆ studiolight_matcap_preview()

static void studiolight_matcap_preview	(	uint *	icon_buffer,
		StudioLight *	sl,
		bool	flipped
	)

static

Definition at line 1292 of file studiolight.c.

References add_v3_v3(), alpha_circle_mask(), BKE_studiolight_ensure_flag(), StudioLightImage::ibuf, ITER_PIXELS, ITER_PIXELS_END, linearrgb_to_srgb(), StudioLight::matcap_diffuse, StudioLight::matcap_specular, nearest_interpolation_color(), NULL, RESCALE_COORD, rgb_to_cpack(), STUDIOLIGHT_EXTERNAL_IMAGE_LOADED, STUDIOLIGHT_ICON_SIZE, texel_size, v, x, ImBuf::x, y, and ImBuf::y.

Referenced by BKE_studiolight_preview().

◆ studiolight_multilayer_addlayer()

static void* studiolight_multilayer_addlayer	(	void *	base,
		const char *	UNUSEDlayer_name
	)

static

Definition at line 354 of file studiolight.c.

Referenced by studiolight_load_equirect_image().

◆ studiolight_multilayer_addpass()

static void studiolight_multilayer_addpass	(	void *	base,
		void *	UNUSEDlay,
		const char *	pass_name,
		float *	rect,
		int	num_channels,
		const char *	UNUSEDchan_id,
		const char *	UNUSEDview_name
	)