Timeline Prototype

src/core/UsdSceneRenderer.h

@@ -3,6 +3,7 @@
 #include <glad/gl.h>
 
 #include <pxr/usd/usd/stage.h>
+#include <pxr/usd/usd/timeCode.h>
 #include <pxr/imaging/glf/drawTarget.h>
 #include <pxr/usdImaging/usdImagingGL/engine.h>
 #include <pxr/imaging/glf/simpleLight.h>
@@ -163,6 +164,11 @@ public:
         if (val) m_cameraCacheDirty = true;
     }
 
+    /// Current evaluation time (timeline frame).  Drives Hydra rendering,
+    /// USD camera resolution, and bounding-box computation.
+    pxr::UsdTimeCode GetCurrentTimeCode() const  { return m_currentTime; }
+    void SetCurrentTimeCode(pxr::UsdTimeCode t)  { m_currentTime = t; }
+
     // -----------------------------------------------------------------------
     // Bounding box display
     // -----------------------------------------------------------------------
@@ -267,6 +273,8 @@ private:
     bool m_rendererInitialized;
     bool m_forceRefresh;
 
+    pxr::UsdTimeCode m_currentTime = pxr::UsdTimeCode::Default();
+
     int m_diagFrameCount;
 
     // --- Grid GL resources (line geometry, reuses m_axisProgram / m_axisUniformMVP) ---