Merge pull request 'perf(decompress): release compressed staging after submit, not for the resource's life (#67)' (#106) from claude/issue-67 into master

implementations/Crafter.Graphics-Mesh.cpp

@@ -278,6 +278,16 @@ void Mesh::Build(const CompressedMeshAsset& asset, VkCommandBuffer cmd, RTBuildO
         VK_PIPELINE_STAGE_2_ACCELERATION_STRUCTURE_BUILD_BIT_KHR,
         VK_ACCESS_2_ACCELERATION_STRUCTURE_READ_BIT_KHR);
 
+    // The compressed staging is only read by the decompress recorded above; the
+    // subsequent BLAS build reads the decompressed vertex/index buffers, never
+    // this. So hand it to the fence-keyed deletion queue (#101/#102) now rather
+    // than pinning host-visible memory for the mesh's whole life. The recorded
+    // vkCmdDecompressMemoryEXT still references compressedStaging.address, so it
+    // must outlive this submit — which the queue guarantees: it retires the
+    // allocation only after framesInFlight frames have elapsed, by which point
+    // the decompress submit's fence has cleared.
+    compressedStaging.DeferredClear();
+
     allowUpdate     = options.allowUpdate;
     builtInputCount = asset.vertexCount;
     RecordBLASBuild(*this, asset.vertexCount, asset.indexCount, BlasFlags(options), /*update*/ false, cmd);