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Remove acceleration structure host commands usage

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This commit is contained in:
Michael Tang 2021-02-23 18:24:59 -08:00
parent 0d732cc4a4
commit 94873f7eaf
5 changed files with 90 additions and 212 deletions
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62
examples/raytracingshadows/raytracingshadows.cpp
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@ -136,28 +136,15 @@ public:
accelerationStructureBuildRangeInfo.transformOffset = 0;
std::vector<VkAccelerationStructureBuildRangeInfoKHR*> accelerationBuildStructureRangeInfos = { &accelerationStructureBuildRangeInfo };
if (accelerationStructureFeatures.accelerationStructureHostCommands)
{
// Implementation supports building acceleration structure building on host
// Implementation supports building acceleration structure building on host
vkBuildAccelerationStructuresKHR(
device,
VK_NULL_HANDLE,
1,
&accelerationBuildGeometryInfo,
accelerationBuildStructureRangeInfos.data());
}
else
{
// Acceleration structure needs to be build on the device
VkCommandBuffer commandBuffer = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
vkCmdBuildAccelerationStructuresKHR(
commandBuffer,
1,
&accelerationBuildGeometryInfo,
accelerationBuildStructureRangeInfos.data());
vulkanDevice->flushCommandBuffer(commandBuffer, queue);
}
// Build the acceleration structure on the device via a one-time command buffer submission
// Some implementations may support acceleration structure building on the host (VkPhysicalDeviceAccelerationStructureFeaturesKHR->accelerationStructureHostCommands), but we prefer device builds
VkCommandBuffer commandBuffer = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
vkCmdBuildAccelerationStructuresKHR(
commandBuffer,
1,
&accelerationBuildGeometryInfo,
accelerationBuildStructureRangeInfos.data());
vulkanDevice->flushCommandBuffer(commandBuffer, queue);
deleteScratchBuffer(scratchBuffer);
}
@ -238,28 +225,15 @@ public:
accelerationStructureBuildRangeInfo.transformOffset = 0;
std::vector<VkAccelerationStructureBuildRangeInfoKHR*> accelerationBuildStructureRangeInfos = { &accelerationStructureBuildRangeInfo };
if (accelerationStructureFeatures.accelerationStructureHostCommands)
{
// Implementation supports building acceleration structure building on host
// Implementation supports building acceleration structure building on host
vkBuildAccelerationStructuresKHR(
device,
VK_NULL_HANDLE,
1,
&accelerationBuildGeometryInfo,
accelerationBuildStructureRangeInfos.data());
}
else
{
// Acceleration structure needs to be build on the device
VkCommandBuffer commandBuffer = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
vkCmdBuildAccelerationStructuresKHR(
commandBuffer,
1,
&accelerationBuildGeometryInfo,
accelerationBuildStructureRangeInfos.data());
vulkanDevice->flushCommandBuffer(commandBuffer, queue);
}
// Build the acceleration structure on the device via a one-time command buffer submission
// Some implementations may support acceleration structure building on the host (VkPhysicalDeviceAccelerationStructureFeaturesKHR->accelerationStructureHostCommands), but we prefer device builds
VkCommandBuffer commandBuffer = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
vkCmdBuildAccelerationStructuresKHR(
commandBuffer,
1,
&accelerationBuildGeometryInfo,
accelerationBuildStructureRangeInfos.data());
vulkanDevice->flushCommandBuffer(commandBuffer, queue);
deleteScratchBuffer(scratchBuffer);
instancesBuffer.destroy();