[chore]: move imgui HDRI switching to vulkan

1 files changed, 9 insertions, 0 deletions

diff --git a/src/platform/vulkan/vulkan_renderer.h b/src/platform/vulkan/vulkan_renderer.h
index 97a4e38..68a1602 100644
--- a/src/platform/vulkan/vulkan_renderer.h
+++ b/src/platform/vulkan/vulkan_renderer.h
@@ -2,6 +2,7 @@
 
 #include <glm/glm.hpp>
 #include <functional>
+#include <string>
 
 // Live-window Vulkan backend: owns the instance, surface, device, swapchain,
 // render pass, framebuffers and per-frame synchronization, and drives the
@@ -33,6 +34,14 @@ namespace Donut
 
         auto on_resize(int width, int height) -> void;
 
+        // Rebuilds the starfield environment cubemap from another equirect .hdr
+        // at runtime (device-idle teardown + rebuild + descriptor rewrite).
+        // No-op if path is already the active HDRI.
+        auto set_hdri(const std::string& path) -> void;
+
+        // Filesystem path of the HDRI currently backing the cubemap.
+        auto current_hdri() const -> const std::string&;
+
     private:
         struct Impl;
         Impl* m_impl = nullptr;