eevee_lightprobe_planar.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "eevee_defines.hh"
#include "eevee_lightprobe_shared.hh"
#include "eevee_uniform_shared.hh"
 
#include "draw_pass.hh"
#include "draw_view.hh"
 
namespace blender::eevee {
 
using namespace draw;
 
class Instance;
class HiZBuffer;
 
/* -------------------------------------------------------------------- */
 
using ClipPlaneBuf = draw::UniformBuffer<ClipPlaneData>;
using PlanarProbeDataBuf = draw::UniformArrayBuffer<PlanarProbeData, PLANAR_PROBE_MAX>;
using PlanarProbeDisplayDataBuf = draw::StorageArrayBuffer<PlanarProbeDisplayData>;
 
class PlanarProbeModule {
  friend class Instance;
  friend class HiZBuffer;
  friend class PlanarProbePipeline;
 
 private:
  Instance &inst_;
 
  struct PlanarResources : NonCopyable {
    Framebuffer combined_fb = {"planar.combined_fb"};
    Framebuffer gbuffer_fb = {"planar.gbuffer_fb"};
    draw::View view = {"planar.view"};
  };
 
  std::array<PlanarResources, PLANAR_PROBE_MAX> resources_;
 
  Texture radiance_tx_ = {"planar.radiance_tx"};
  Texture depth_tx_ = {"planar.depth_tx"};
 
  ClipPlaneBuf world_clip_buf_ = {"world_clip_buf"};
  PlanarProbeDataBuf probe_planar_buf_ = {"probe_planar_buf"};
 
  bool update_probes_ = false;

  bool do_display_draw_ = false;
  PlanarProbeDisplayDataBuf display_data_buf_;
  PassSimple viewport_display_ps_ = {"PlanarProbeModule.Viewport Display"};
 
 public:
  PlanarProbeModule(Instance &instance) : inst_(instance) {}
 
  void init();
  void end_sync();
 
  void set_view(const draw::View &main_view, int2 main_view_extent);
 
  void viewport_draw(View &view, gpu::FrameBuffer *view_fb);
 
  template<typename PassType> void bind_resources(PassType &pass)
  {
    /* Disable filter to avoid interpolation with missing background. */
    GPUSamplerState no_filter = GPUSamplerState::default_sampler();
    pass.bind_ubo(PLANAR_PROBE_BUF_SLOT, &probe_planar_buf_);
    pass.bind_texture(PLANAR_PROBE_RADIANCE_TEX_SLOT, &radiance_tx_, no_filter);
    pass.bind_texture(PLANAR_PROBE_DEPTH_TEX_SLOT, &depth_tx_);
  }
 
  bool enabled() const
  {
    return update_probes_;
  }
};

 
}  // namespace blender::eevee