usd_private.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
/* Functions shared between USD and Hydra, that are private to the USD module. */
 
#pragma once
 
#include <pxr/base/gf/matrix4d.h>
#include <pxr/usd/usd/common.h>
 
#include <string>
 
#include "usd.hh"
 
struct Depsgraph;
struct Image;
struct ImageUser;
struct Scene;
 
namespace blender::io::usd {
 
pxr::UsdStageRefPtr export_to_stage(const USDExportParams &params,
                                    Depsgraph *depsgraph,
                                    const char *filepath);
 
std::string image_cache_file_path();
std::string get_image_cache_file(const std::string &file_name, bool mkdir = true);
std::string cache_image_color(const float color[4]);

struct WorldToDomeLight {
  /* Image and its transform. */
  Image *image = nullptr;
  ImageUser *iuser = nullptr;
  pxr::GfMatrix4d transform = pxr::GfMatrix4d(1.0);
 
  /* Multiply image by color. */
  bool mult_found = false;
  float color_mult[4]{};
 
  /* Fixed color. */
  bool color_found = false;
  float intensity = 0.0f;
  float color[4]{};
};
 
void world_material_to_dome_light(const Scene *scene, WorldToDomeLight &res);
 
};  // namespace blender::io::usd