message: Index buffer size for copy command command
diff: @@ -321,7 +321,7 @@ public:
  indexBufferSize);
  VK_CHECK_RESULT(vkBeginCommandBuffer(copyCmd, &cmdBufInfo));
  - copyRegion.size = vertexBufferSize;
  + copyRegion.size = indexBufferSize;
  vkCmdCopyBuffer(copyCmd, stagingBuffer, indexBuffer, 1, &copyRegion);
  VK_CHECK_RESULT(vkEndCommandBuffer(copyCmd));
  