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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2006-2007 Blender Foundation.
* All rights reserved.
*/
#pragma once
/** \file
* \ingroup bke
*
* Studio lighting for the 3dview
*/
#include "BLI_sys_types.h"
#include "BLI_path_util.h"
#include "DNA_userdef_types.h" /* for #SolidLight */
#ifdef __cplusplus
extern "C" {
#endif
struct ImBuf;
/*
* These defines are the indexes in the StudioLight.diffuse_light
* X_POS means the light that is traveling towards the positive X
* So Light direction.
*/
#define STUDIOLIGHT_X_POS 0
#define STUDIOLIGHT_X_NEG 1
#define STUDIOLIGHT_Y_POS 2
#define STUDIOLIGHT_Y_NEG 3
#define STUDIOLIGHT_Z_POS 4
#define STUDIOLIGHT_Z_NEG 5
#define STUDIOLIGHT_ICON_ID_TYPE_RADIANCE (1 << 0)
#define STUDIOLIGHT_ICON_ID_TYPE_IRRADIANCE (1 << 1)
#define STUDIOLIGHT_ICON_ID_TYPE_MATCAP (1 << 2)
#define STUDIOLIGHT_ICON_ID_TYPE_MATCAP_FLIPPED (1 << 3)
#define STUDIOLIGHT_MAX_LIGHT 4
#define STUDIOLIGHT_ICON_SIZE 96
/* Only 1 - 5 is supported */
#define STUDIOLIGHT_SH_BANDS 2
#define STUDIOLIGHT_SH_COEFS_LEN (STUDIOLIGHT_SH_BANDS * STUDIOLIGHT_SH_BANDS)
#if STUDIOLIGHT_SH_BANDS > 3
/* Bypass L3 */
# define STUDIOLIGHT_SH_EFFECTIVE_COEFS_LEN (STUDIOLIGHT_SH_COEFS_LEN - 7)
#else
# define STUDIOLIGHT_SH_EFFECTIVE_COEFS_LEN STUDIOLIGHT_SH_COEFS_LEN
#endif
struct GPUTexture;
struct StudioLight;
/* StudioLight.flag */
enum StudioLightFlag {
STUDIOLIGHT_SPHERICAL_HARMONICS_COEFFICIENTS_CALCULATED = (1 << 0),
/* STUDIOLIGHT_LIGHT_DIRECTION_CALCULATED = (1 << 1), */
STUDIOLIGHT_INTERNAL = (1 << 2),
STUDIOLIGHT_EXTERNAL_FILE = (1 << 3),
STUDIOLIGHT_TYPE_STUDIO = (1 << 4),
STUDIOLIGHT_TYPE_WORLD = (1 << 5),
STUDIOLIGHT_TYPE_MATCAP = (1 << 6),
STUDIOLIGHT_EXTERNAL_IMAGE_LOADED = (1 << 7),
STUDIOLIGHT_EQUIRECT_IRRADIANCE_IMAGE_CALCULATED = (1 << 8),
STUDIOLIGHT_EQUIRECT_RADIANCE_GPUTEXTURE = (1 << 9),
STUDIOLIGHT_EQUIRECT_IRRADIANCE_GPUTEXTURE = (1 << 10),
STUDIOLIGHT_RADIANCE_BUFFERS_CALCULATED = (1 << 11),
STUDIOLIGHT_USER_DEFINED = (1 << 12),
STUDIOLIGHT_UI_EXPANDED = (1 << 13),
STUDIOLIGHT_MATCAP_DIFFUSE_GPUTEXTURE = (1 << 14),
STUDIOLIGHT_MATCAP_SPECULAR_GPUTEXTURE = (1 << 15),
/* Is set for studio lights and matcaps with specular highlight pass. */
STUDIOLIGHT_SPECULAR_HIGHLIGHT_PASS = (1 << 16),
};
#define STUDIOLIGHT_FLAG_ALL (STUDIOLIGHT_INTERNAL | STUDIOLIGHT_EXTERNAL_FILE)
#define STUDIOLIGHT_FLAG_ORIENTATIONS \
(STUDIOLIGHT_TYPE_STUDIO | STUDIOLIGHT_TYPE_WORLD | STUDIOLIGHT_TYPE_MATCAP)
#define STUDIOLIGHT_ORIENTATIONS_MATERIAL_MODE (STUDIOLIGHT_TYPE_WORLD)
#define STUDIOLIGHT_ORIENTATIONS_SOLID (STUDIOLIGHT_INTERNAL | STUDIOLIGHT_TYPE_STUDIO)
typedef void StudioLightFreeFunction(struct StudioLight *, void *data);
typedef struct StudioLightImage {
struct ImBuf *ibuf;
struct GPUTexture *gputexture;
} StudioLightImage;
typedef struct StudioLight {
struct StudioLight *next, *prev;
int index;
int flag;
char name[FILE_MAXFILE];
char path[FILE_MAX];
char *path_irr_cache;
char *path_sh_cache;
int icon_id_irradiance;
int icon_id_radiance;
int icon_id_matcap;
int icon_id_matcap_flipped;
float spherical_harmonics_coefs[STUDIOLIGHT_SH_EFFECTIVE_COEFS_LEN][3];
float light_direction[3];
StudioLightImage matcap_diffuse;
StudioLightImage matcap_specular;
struct ImBuf *equirect_radiance_buffer;
struct ImBuf *equirect_irradiance_buffer;
struct ImBuf *radiance_cubemap_buffers[6];
struct GPUTexture *equirect_radiance_gputexture;
struct GPUTexture *equirect_irradiance_gputexture;
SolidLight light[STUDIOLIGHT_MAX_LIGHT];
float light_ambient[3];
/*
* Free function to clean up the running icons previews (wmJob) the usage is in
* interface_icons. Please be aware that this was build to handle only one free function
* that cleans up all icons. just to keep the code simple.
*/
StudioLightFreeFunction *free_function;
void *free_function_data;
} StudioLight;
void BKE_studiolight_init(void);
void BKE_studiolight_free(void);
void BKE_studiolight_default(SolidLight lights[4], float light_ambient[4]);
struct StudioLight *BKE_studiolight_find(const char *name, int flag);
struct StudioLight *BKE_studiolight_findindex(int index, int flag);
struct StudioLight *BKE_studiolight_find_default(int flag);
void BKE_studiolight_preview(uint *icon_buffer, StudioLight *sl, int icon_id_type);
struct ListBase *BKE_studiolight_listbase(void);
void BKE_studiolight_ensure_flag(StudioLight *sl, int flag);
void BKE_studiolight_refresh(void);
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_remove(StudioLight *sl);
void BKE_studiolight_set_free_function(StudioLight *sl,
StudioLightFreeFunction *free_function,
void *data);
void BKE_studiolight_unset_icon_id(StudioLight *sl, int icon_id);
#ifdef __cplusplus
}
#endif
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