eevee_cryptomatte.hh

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/* SPDX-FileCopyrightText: 2022 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "eevee_shader_shared.hh"
 
#include "BKE_cryptomatte.hh"
 
extern "C" {
struct Material;
}
 
namespace blender::eevee {
 
class Instance;
 
/* -------------------------------------------------------------------- */
class Cryptomatte {
 private:
  class Instance &inst_;
 
  bke::cryptomatte::CryptomatteSessionPtr session_;
 
  /* Cached pointer to the cryptomatte layer instances. */
  bke::cryptomatte::CryptomatteLayer *object_layer_ = nullptr;
  bke::cryptomatte::CryptomatteLayer *asset_layer_ = nullptr;
  bke::cryptomatte::CryptomatteLayer *material_layer_ = nullptr;
 
  CryptomatteObjectBuf cryptomatte_object_buf;
 
 public:
  Cryptomatte(Instance &inst) : inst_(inst){};
 
  void begin_sync();
  void sync_object(Object *ob, ResourceHandle res_handle);
  void sync_material(const ::Material *material);
  void end_sync();
 
  template<typename PassType> void bind_resources(PassType &pass)
  {
    pass.bind_ssbo(CRYPTOMATTE_BUF_SLOT, &cryptomatte_object_buf);
  }
 
  /* Register ID to use inside cryptomatte layer and returns associated hash as float. */
  float register_id(const eViewLayerEEVEEPassType layer, const ID &id) const;
  void store_metadata(RenderResult *render_result);
};
 
}  // namespace blender::eevee