76 lines
3.2 KiB
C++
76 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 "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 VkDevice& device, const VkPhysicalDevice& physicalDevice, nvvk::ResourceAllocator* allocator, 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 VkImageView& outputImage);
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void updateRtDescriptorSet(const VkImageView& outputImage);
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void createRtPipeline(VkDescriptorSetLayout& sceneDescLayout);
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void raytrace(const VkCommandBuffer& cmdBuf,
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const nvmath::vec4f& clearColor,
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VkDescriptorSet& sceneDescSet,
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VkExtent2D& size,
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ObjPushConstants& sceneConstants);
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private:
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nvvk::ResourceAllocator* m_alloc{nullptr}; // Allocator for buffer, images, acceleration structures
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VkPhysicalDevice m_physicalDevice;
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VkDevice 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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VkPhysicalDeviceRayTracingPipelinePropertiesKHR m_rtProperties{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_RAY_TRACING_PIPELINE_PROPERTIES_KHR};
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nvvk::RaytracingBuilderKHR m_rtBuilder;
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nvvk::DescriptorSetBindings m_rtDescSetLayoutBind;
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VkDescriptorPool m_rtDescPool;
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VkDescriptorSetLayout m_rtDescSetLayout;
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VkDescriptorSet m_rtDescSet;
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std::vector<VkRayTracingShaderGroupCreateInfoKHR> m_rtShaderGroups;
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VkPipelineLayout m_rtPipelineLayout;
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VkPipeline 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{100.0f};
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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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