Example 53 has bugs (needs fixing)

Example 11 works beautifully, but not on Vulkan due to validation errors (mostly due to Buffer API).

Author: devshgraphicsprogramming

examples_tests/11.LoDSystem/main.cpp

@@ -114,7 +114,8 @@ void addLoDTable(
 
         poly <<= 1u;
     }
-    auto gpumeshes = video::CAssetPreservingGPUObjectFromAssetConverter().getGPUObjectsFromAssets(cpumeshes, cpumeshes + LoDLevels, cpu2gpuParams);
+    cpu2gpuParams.beginCommandBuffers();
+    auto gpumeshes = video::CAssetPreservingGPUObjectFromAssetConverter().getGPUObjectsFromAssets(cpumeshes, cpumeshes+LoDLevels, cpu2gpuParams);
 
     core::smart_refctd_ptr<video::IGPUGraphicsPipeline> pipeline;
     {
@@ -346,7 +347,7 @@ class LoDSystemApp : public ApplicationBase
             const auto swapchainImageUsage = static_cast<asset::IImage::E_USAGE_FLAGS>(asset::IImage::EUF_COLOR_ATTACHMENT_BIT | asset::IImage::EUF_TRANSFER_DST_BIT);
             const video::ISurface::SFormat surfaceFormat(asset::EF_B8G8R8A8_SRGB, asset::ECP_COUNT, asset::EOTF_UNKNOWN);
 
-            CommonAPI::InitWithDefaultExt(initOutput, video::EAT_OPENGL_ES, "Level of Detail System", WIN_W, WIN_H, FBO_COUNT, swapchainImageUsage, surfaceFormat, asset::EF_D32_SFLOAT);
+            CommonAPI::InitWithDefaultExt(initOutput, video::EAT_OPENGL, "Level of Detail System", WIN_W, WIN_H, FBO_COUNT, swapchainImageUsage, surfaceFormat, asset::EF_D32_SFLOAT);
             window = std::move(initOutput.window);
             gl = std::move(initOutput.apiConnection);
             surface = std::move(initOutput.surface);

examples_tests/53.ComputeShaders/main.cpp

@@ -236,7 +236,7 @@ APP_CONSTRUCTOR(MeshLoadersApp)
 		const auto swapchainImageUsage = static_cast<asset::IImage::E_USAGE_FLAGS>(asset::IImage::EUF_COLOR_ATTACHMENT_BIT);
 		const video::ISurface::SFormat surfaceFormat(asset::EF_R8G8B8A8_SRGB, asset::ECP_COUNT, asset::EOTF_UNKNOWN);
 
-		CommonAPI::InitWithDefaultExt(initOutput, video::EAT_VULKAN, "MeshLoaders", WIN_W, WIN_H, FBO_COUNT, swapchainImageUsage, surfaceFormat, nbl::asset::EF_D32_SFLOAT);
+		CommonAPI::InitWithDefaultExt(initOutput, video::EAT_VULKAN, "ComputeShaders", WIN_W, WIN_H, FBO_COUNT, swapchainImageUsage, surfaceFormat, nbl::asset::EF_D32_SFLOAT);
 		window = std::move(initOutput.window);
 		gl = std::move(initOutput.apiConnection);
 		surface = std::move(initOutput.surface);

examples_tests/Readme.md

@@ -42,7 +42,7 @@ N = No support
 | FREE_SLOT                       |              |                  |              |              |                 |              |                   |                |                                                   |
 | 09.ColorSpaceTest               | W            | W                | W            | W            | W               | W            | W                 | W              |                                                   |
 | 10.AllocatorTest                | Y            | Y                | Y            | S            | S               | S            | N                 | N              |                                                   |
-| 11.LoDSystem                    | Y            | N                | B            | S            | N               | S            | N                 | S              |                                                   |
+| 11.LoDSystem                    | Y            | Y                | B            | S            | N               | S            | N                 | S              |                                                   |
 | 12.glTF                         | W            | N                | W            | W            | N               | W            | N                 | W              | COMPILE_WITH_GLTF_LOADER                          |
 | FREE_SLOT                       |              |                  |              |              |                 |              |                   |                |                                                   |
 | 14.ComputeScan                  | Y            | Y                | B            | S            | S               | S            | S                 | S              |                                                   |
@@ -84,7 +84,7 @@ N = No support
 | 50.NewAPITest                   | W            | W                | W            | W            | W               | W            | W                 | W              |                                                   |
 | 51.RadixSort                    | W            | N                | W            | W            | N               | W            | N                 | W              |                                                   |
 | 52.SystemTest                   | Y            | Y                | Y            | S            | S               | S            | S                 | S              |                                                   |
-| 53.ComputeShaders               | S            | N                | S            | S            | N               | S            | N                 | S              |                                                   |
+| 53.ComputeShaders               | B            | B                | B            | S            | N               | S            | N                 | S              |                                                   |
 | 54.Transformations              | Y            | Y                | B            | S            | S               | S            | S                 | S              |                                                   |
 | 55.RGB18E7S3                    | Y            | Y                | Y            | S            | S               | S            | N                 | N              |                                                   |
 | 56.RayQuery                     | N            | N                | Y            | N            | N               | S            | N                 | S              |                                                   |