fix for getAccelerationStructureBuildSizes for tlas creation

keptsecret · keptsecret · commit 9d5fd07f1eb3 · 2024-11-07T15:01:21.000+07:00
diff --git a/src/nbl/video/CVulkanLogicalDevice.cpp b/src/nbl/video/CVulkanLogicalDevice.cpp
@@ -459,7 +459,7 @@ auto CVulkanLogicalDevice::getAccelerationStructureBuildSizes_impl(
 ) const -> AccelerationStructureBuildSizes
 {
     VkAccelerationStructureGeometryKHR geometry = {VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_KHR,nullptr,VK_GEOMETRY_TYPE_INSTANCES_KHR};
-    geometry.geometry.instances = {};
+    geometry.geometry.instances = { .sType = VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_INSTANCES_DATA_KHR };
     // no "geometry flags" are valid for all instances!
     geometry.flags = static_cast<VkGeometryFlagBitsKHR>(0);
     

Original file line number	Diff line number	Diff line change
`@@ -459,7 +459,7 @@ auto CVulkanLogicalDevice::getAccelerationStructureBuildSizes_impl(`
`459`	`459`	`) const -> AccelerationStructureBuildSizes`
`460`	`460`	`{`
`461`	`461`	`VkAccelerationStructureGeometryKHR geometry = {VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_KHR,nullptr,VK_GEOMETRY_TYPE_INSTANCES_KHR};`
`462`		`- geometry.geometry.instances = {};`
	`462`	`+ geometry.geometry.instances = { .sType = VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_INSTANCES_DATA_KHR };`
`463`	`463`	`// no "geometry flags" are valid for all instances!`
`464`	`464`	`geometry.flags = static_cast<VkGeometryFlagBitsKHR>(0);`
`465`	`465`