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#pragma once
#include "rhi.h"
#include "view.h"
#include "scene_renderer.h"
#include "black_hole_renderer.h"
#include "export_config.h"
#include "core/memory.h"
#include <string>
namespace Donut
{
class Scene;
// Owns the device-side rendering: the two portable renderers, the shared HDRI
// cubemap, and the per-frame composition (off-screen geodesic pass -> present,
// or the scene pass), with ImGui drawn on top inside the swapchain pass. The
// Application hands it a Scene + View each frame; it knows nothing about the UI.
class RenderPath
{
public:
auto init(RHI::Device& device, const std::string& hdri_path) -> bool;
auto shutdown() -> void;
// Rebuilds the environment cubemap if the path changed (device-idle).
auto sync_hdri(const std::string& hdri_path) -> void;
// Composes one frame's viewport into the swapchain command list. `moving`
// drives the black hole's progressive resolution; `time` animates the disk.
auto render(RHI::CommandList& cmd, Scene& scene, View view,
int fb_width, int fb_height, bool moving, float time) -> void;
// Renders the requested export channels off-screen at cfg.width x cfg.height
// and writes one PNG per channel. Returns the number of files written.
auto export_frame(Scene& scene, const ExportConfig& cfg) -> int;
private:
RHI::Device* m_device = nullptr;
Scope<SceneRenderer> m_scene_renderer;
Scope<BlackHoleRenderer> m_black_hole_renderer;
Ref<RHI::Texture> m_cubemap;
std::string m_hdri_path;
};
}
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