Add MultiDeviceSceneRenderPass::getFrame() accessor

Expose per-device frame handles so that applications using
multi-device rendering can query frame properties (duration,
samples) and set per-frame parameters (denoise, AOV channels)
on the actual rendering frames.

Mirrors the existing AnariSceneRenderPass::getFrame() API.

Made-with: Cursor

Author: favreau

tsd/src/tsd/rendering/pipeline/passes/MultiDeviceSceneRenderPass.cpp

@@ -77,6 +77,11 @@ void MultiDeviceSceneRenderPass::setRunAsync(bool on)
   m_runAsync = on;
 }
 
+anari::Frame MultiDeviceSceneRenderPass::getFrame(size_t i) const
+{
+  return i < m_frames.size() ? m_frames[i] : nullptr;
+}
+
 void MultiDeviceSceneRenderPass::foreach_frame(
     const std::function<void(anari::Device, anari::Frame)> &func) const
 {

tsd/src/tsd/rendering/pipeline/passes/MultiDeviceSceneRenderPass.h

@@ -27,6 +27,8 @@ struct MultiDeviceSceneRenderPass : public RenderPass
   // default' true' -- if 'false', then anari::wait() on each pass
   void setRunAsync(bool on);
 
+  anari::Frame getFrame(size_t i = 0) const;
+
  private:
   void foreach_frame(
       const std::function<void(anari::Device, anari::Frame)> &func) const;