82 lines
3.2 KiB
C++
82 lines
3.2 KiB
C++
/*
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* Copyright (c) 2014-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* SPDX-FileCopyrightText: Copyright (c) 2014-2021 NVIDIA CORPORATION
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <vulkan/vulkan.hpp>
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#include "nvmath/nvmath.h"
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#include "nvvk/descriptorsets_vk.hpp"
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#include "nvvk/raytraceKHR_vk.hpp"
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#include "nvvk/sbtwrapper_vk.hpp"
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#include "obj.hpp"
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class Raytracer
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{
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public:
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void setup(const vk::Device& device,
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const vk::PhysicalDevice& physicalDevice,
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nvvk::ResourceAllocator* allocator,
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uint32_t queueFamily);
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void destroy();
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auto objectToVkGeometryKHR(const ObjModel& model);
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auto implicitToVkGeometryKHR(const ImplInst& implicitObj);
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void createBottomLevelAS(std::vector<ObjModel>& models, ImplInst& implicitObj);
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void createTopLevelAS(std::vector<ObjInstance>& instances, ImplInst& implicitObj);
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void createRtDescriptorSet(const vk::ImageView& outputImage);
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void updateRtDescriptorSet(const vk::ImageView& outputImage);
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void createRtPipeline(vk::DescriptorSetLayout& sceneDescLayout);
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void raytrace(const vk::CommandBuffer& cmdBuf,
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const nvmath::vec4f& clearColor,
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vk::DescriptorSet& sceneDescSet,
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vk::Extent2D& size,
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ObjPushConstants& sceneConstants);
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private:
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nvvk::ResourceAllocator* m_alloc{
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nullptr}; // Allocator for buffer, images, acceleration structures
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vk::PhysicalDevice m_physicalDevice;
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vk::Device m_device;
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int m_graphicsQueueIndex{0};
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nvvk::DebugUtil m_debug; // Utility to name objects
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nvvk::SBTWrapper m_sbtWrapper;
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vk::PhysicalDeviceRayTracingPipelinePropertiesKHR m_rtProperties;
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nvvk::RaytracingBuilderKHR m_rtBuilder;
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nvvk::DescriptorSetBindings m_rtDescSetLayoutBind;
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vk::DescriptorPool m_rtDescPool;
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vk::DescriptorSetLayout m_rtDescSetLayout;
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vk::DescriptorSet m_rtDescSet;
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std::vector<vk::RayTracingShaderGroupCreateInfoKHR> m_rtShaderGroups;
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vk::PipelineLayout m_rtPipelineLayout;
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vk::Pipeline m_rtPipeline;
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nvvk::Buffer m_rtSBTBuffer;
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struct RtPushConstants
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{
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nvmath::vec4f clearColor;
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nvmath::vec3f lightPosition;
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float lightIntensity;
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nvmath::vec3f lightDirection{-1, -1, -1};
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float lightSpotCutoff{deg2rad(12.5f)};
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float lightSpotOuterCutoff{deg2rad(17.5f)};
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int lightType{0};
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int frame{0};
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} m_rtPushConstants;
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};
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