RE_texture.h

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/* SPDX-FileCopyrightText: 2006 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "BLI_compiler_attrs.h"
 
/* called by meshtools */
struct Depsgraph;
struct ImagePool;
struct MTex;
struct Tex;
 
/* `texture_procedural.cc` */

bool RE_texture_evaluate(const struct MTex *mtex,
                         const float vec[3],
                         int thread,
                         struct ImagePool *pool,
                         bool skip_load_image,
                         bool texnode_preview,
                         /* Return arguments. */
                         float *r_intensity,
                         float r_rgba[4]) ATTR_NONNULL(1, 2, 7, 8);

float texture_value_blend(float tex, float out, float fact, float facg, int blendtype);
 
void RE_texture_rng_init(void);
void RE_texture_rng_exit(void);
 
/* `texture_image.cc` */
 
void ibuf_sample(struct ImBuf *ibuf, float fx, float fy, float dx, float dy, float result[4]);
 
/* `texture_pointdensity.cc` */
 
struct PointDensity;
 
void RE_point_density_cache(struct Depsgraph *depsgraph, struct PointDensity *pd);
 
void RE_point_density_minmax(struct Depsgraph *depsgraph,
                             struct PointDensity *pd,
                             float r_min[3],
                             float r_max[3]);

void RE_point_density_sample(struct Depsgraph *depsgraph,
                             struct PointDensity *pd,
                             int resolution,
                             float *values);
 
void RE_point_density_free(struct PointDensity *pd);
 
void RE_point_density_fix_linking(void);
 
/* `texture_procedural.cc` */

struct TexResult {
  float tin;
  float trgba[4];
  /* Is actually a boolean: When true -> use alpha, false -> set alpha to 1.0. */
  int talpha;
};
 
/* This one uses nodes. */

int multitex_ext(struct Tex *tex,
                 const float texvec[3],
                 float dxt[3],
                 float dyt[3],
                 int osatex,
                 struct TexResult *texres,
                 short thread,
                 struct ImagePool *pool,
                 bool scene_color_manage,
                 bool skip_load_image);

int multitex_ext_safe(struct Tex *tex,
                      const float texvec[3],
                      struct TexResult *texres,
                      struct ImagePool *pool,
                      bool scene_color_manage,
                      bool skip_load_image);

int multitex_nodes(struct Tex *tex,
                   const float texvec[3],
                   float dxt[3],
                   float dyt[3],
                   int osatex,
                   struct TexResult *texres,
                   short thread,
                   short which_output,
                   const struct MTex *mtex,
                   struct ImagePool *pool);