Ensure indirect buffer is properly cleared on first run

2026-05-05 17:40:39 +00:00 · 2020-07-17 15:52:20 +01:00
parent c6ef3f1006
commit a46e86f191
1 changed files with 11 additions and 0 deletions
@@ -265,6 +265,17 @@ void main()
                           vkh::ClearColorValue(0.2f, 0.2f, 0.2f, 1.0f), 1,
                           vkh::ImageSubresourceRange());

+      vkh::cmdPipelineBarrier(
+          primary, {}, {vkh::BufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
+                                                 VK_ACCESS_TRANSFER_WRITE_BIT, ssbo.buffer)});
+
+      // clear the buffer so that we can't read any of the data back from outside the command buffer
+      vkCmdFillBuffer(primary, ssbo.buffer, 0, ssbo_size, 0);
+
+      vkh::cmdPipelineBarrier(
+          primary, {}, {vkh::BufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
+                                                 VK_ACCESS_TRANSFER_WRITE_BIT, ssbo.buffer)});
+
      {
        VkCommandBuffer cmd = primary;