Fix usage flags for buffers whose device addresses are queried

LWJGL · Jul 24, 2024 · 8e265ef · 8e265ef
1 parent e5ddcb9
commit 8e265ef
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/src/org/lwjgl/demo/vulkan/raytracing/SimpleTriangleRayQuery.java b/src/org/lwjgl/demo/vulkan/raytracing/SimpleTriangleRayQuery.java
@@ -1026,7 +1026,8 @@ private static AccelerationStructure createBottomLevelAccelerationStructure(
 
             // Create a buffer that will hold the final BLAS
             AllocationAndBuffer accelerationStructureBuffer = createBuffer(
-                    VK_BUFFER_USAGE_ACCELERATION_STRUCTURE_STORAGE_BIT_KHR, buildSizesInfo.accelerationStructureSize(),
+                    VK_BUFFER_USAGE_ACCELERATION_STRUCTURE_STORAGE_BIT_KHR |
+                    VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_KHR, buildSizesInfo.accelerationStructureSize(),
                     null, 256, null);
 
             // Create a BLAS object (not currently built)

diff --git a/src/org/lwjgl/demo/vulkan/raytracing/VoxelChunks.java b/src/org/lwjgl/demo/vulkan/raytracing/VoxelChunks.java
@@ -1192,7 +1192,7 @@ private static void createBottomLevelAccelerationStructures(List<Chunk> chunks)
             // Create a scratch buffer for the BLAS build
             AllocationAndBuffer scratchBuffer = createBuffer(
                     VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_KHR |
-                            VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, totalScratchBufferSize, null,
+                    VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, totalScratchBufferSize, null,
                     deviceAndQueueFamilies.minAccelerationStructureScratchOffsetAlignment, null);
 
             // Create the BLAS and fill in device addresses for the above two buffers with their offsets