/* Copyright (c) 2014-2018, NVIDIA CORPORATION. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of NVIDIA CORPORATION nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // ImGui - standalone example application for Glfw + Vulkan, using programmable // pipeline If you are new to ImGui, see examples/README.txt and documentation // at the top of imgui.cpp. #include #include #include "imgui.h" #include "imgui_impl_glfw.h" #include "hello_vulkan.h" #include "imgui_camera_widget.h" #include "nvh/cameramanipulator.hpp" #include "nvh/fileoperations.hpp" #include "nvpsystem.hpp" #include "nvvk/appbase_vkpp.hpp" #include "nvvk/commands_vk.hpp" #include "nvvk/context_vk.hpp" VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE ////////////////////////////////////////////////////////////////////////// #define UNUSED(x) (void)(x) ////////////////////////////////////////////////////////////////////////// // Default search path for shaders std::vector defaultSearchPaths; // GLFW Callback functions static void onErrorCallback(int error, const char* description) { fprintf(stderr, "GLFW Error %d: %s\n", error, description); } // Extra UI void renderUI(HelloVulkan& helloVk) { ImGuiH::CameraWidget(); if(ImGui::CollapsingHeader("Light")) { ImGui::RadioButton("Point", &helloVk.m_pushConstant.lightType, 0); ImGui::SameLine(); ImGui::RadioButton("Infinite", &helloVk.m_pushConstant.lightType, 1); ImGui::SliderFloat3("Position", &helloVk.m_pushConstant.lightPosition.x, -20.f, 20.f); ImGui::SliderFloat("Intensity", &helloVk.m_pushConstant.lightIntensity, 0.f, 150.f); } } ////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////// static int const SAMPLE_WIDTH = 1280; static int const SAMPLE_HEIGHT = 720; //-------------------------------------------------------------------------------------------------- // Application Entry // int main(int argc, char** argv) { UNUSED(argc); // Setup GLFW window glfwSetErrorCallback(onErrorCallback); if(!glfwInit()) { return 1; } glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); GLFWwindow* window = glfwCreateWindow(SAMPLE_WIDTH, SAMPLE_HEIGHT, PROJECT_NAME, nullptr, nullptr); // Setup camera CameraManip.setWindowSize(SAMPLE_WIDTH, SAMPLE_HEIGHT); CameraManip.setLookat(nvmath::vec3f(5, 4, -4), nvmath::vec3f(0, 1, 0), nvmath::vec3f(0, 1, 0)); // Setup Vulkan if(!glfwVulkanSupported()) { printf("GLFW: Vulkan Not Supported\n"); return 1; } // setup some basic things for the sample, logging file for example NVPSystem system(argv[0], PROJECT_NAME); // Search path for shaders and other media defaultSearchPaths = { PROJECT_ABSDIRECTORY, PROJECT_ABSDIRECTORY "..", NVPSystem::exePath(), NVPSystem::exePath() + "..", NVPSystem::exePath() + std::string(PROJECT_NAME), }; // Requesting Vulkan extensions and layers nvvk::ContextCreateInfo contextInfo(true); contextInfo.setVersion(1, 2); contextInfo.addInstanceLayer("VK_LAYER_LUNARG_monitor", true); contextInfo.addInstanceExtension(VK_EXT_DEBUG_UTILS_EXTENSION_NAME, true); contextInfo.addInstanceExtension(VK_KHR_SURFACE_EXTENSION_NAME); #ifdef WIN32 contextInfo.addInstanceExtension(VK_KHR_WIN32_SURFACE_EXTENSION_NAME); #else contextInfo.addInstanceExtension(VK_KHR_XLIB_SURFACE_EXTENSION_NAME); contextInfo.addInstanceExtension(VK_KHR_XCB_SURFACE_EXTENSION_NAME); #endif contextInfo.addInstanceExtension(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_KHR_SWAPCHAIN_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_KHR_DEDICATED_ALLOCATION_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_KHR_GET_MEMORY_REQUIREMENTS_2_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_EXT_DESCRIPTOR_INDEXING_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_EXT_SCALAR_BLOCK_LAYOUT_EXTENSION_NAME); // #VKRay: Activate the ray tracing extension vk::PhysicalDeviceAccelerationStructureFeaturesKHR accelFeature; contextInfo.addDeviceExtension(VK_KHR_ACCELERATION_STRUCTURE_EXTENSION_NAME, false, &accelFeature); vk::PhysicalDeviceRayTracingPipelineFeaturesKHR rtPipelineFeature; contextInfo.addDeviceExtension(VK_KHR_RAY_TRACING_PIPELINE_EXTENSION_NAME, false, &rtPipelineFeature); contextInfo.addDeviceExtension(VK_KHR_MAINTENANCE3_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_KHR_PIPELINE_LIBRARY_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_KHR_DEFERRED_HOST_OPERATIONS_EXTENSION_NAME); contextInfo.addDeviceExtension(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME); // Creating Vulkan base application nvvk::Context vkctx{}; vkctx.initInstance(contextInfo); // Find all compatible devices auto compatibleDevices = vkctx.getCompatibleDevices(contextInfo); assert(!compatibleDevices.empty()); // Use a compatible device vkctx.initDevice(compatibleDevices[0], contextInfo); // Create example HelloVulkan helloVk; // Window need to be opened to get the surface on which to draw const vk::SurfaceKHR surface = helloVk.getVkSurface(vkctx.m_instance, window); vkctx.setGCTQueueWithPresent(surface); helloVk.setup(vkctx.m_instance, vkctx.m_device, vkctx.m_physicalDevice, vkctx.m_queueGCT.familyIndex); helloVk.createSwapchain(surface, SAMPLE_WIDTH, SAMPLE_HEIGHT); helloVk.createDepthBuffer(); helloVk.createRenderPass(); helloVk.createFrameBuffers(); // Setup Imgui helloVk.initGUI(0); // Using sub-pass 0 // Creation of the example helloVk.loadModel(nvh::findFile("media/scenes/wuson.obj", defaultSearchPaths, true)); helloVk.loadModel(nvh::findFile("media/scenes/sphere.obj", defaultSearchPaths, true), nvmath::scale_mat4(nvmath::vec3f(1.5f)) * nvmath::translation_mat4(nvmath::vec3f(0.0f, 1.0f, 0.0f))); helloVk.loadModel(nvh::findFile("media/scenes/plane.obj", defaultSearchPaths, true)); helloVk.createOffscreenRender(); helloVk.createDescriptorSetLayout(); helloVk.createGraphicsPipeline(); helloVk.createUniformBuffer(); helloVk.createSceneDescriptionBuffer(); helloVk.updateDescriptorSet(); // #VKRay helloVk.initRayTracing(); helloVk.createBottomLevelAS(); helloVk.createTopLevelAS(); helloVk.createRtDescriptorSet(); helloVk.createRtPipeline(); helloVk.createRtShaderBindingTable(); helloVk.createPostDescriptor(); helloVk.createPostPipeline(); helloVk.updatePostDescriptorSet(); nvmath::vec4f clearColor = nvmath::vec4f(1, 1, 1, 1.00f); bool useRaytracer = true; helloVk.setupGlfwCallbacks(window); ImGui_ImplGlfw_InitForVulkan(window, true); // Main loop while(!glfwWindowShouldClose(window)) { glfwPollEvents(); if(helloVk.isMinimized()) continue; // Start the Dear ImGui frame ImGui_ImplGlfw_NewFrame(); ImGui::NewFrame(); // Show UI window. if(helloVk.showGui()) { ImGuiH::Panel::Begin(); ImGui::ColorEdit3("Clear color", reinterpret_cast(&clearColor)); ImGui::Checkbox("Ray Tracer mode", &useRaytracer); // Switch between raster and ray tracing renderUI(helloVk); ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); ImGuiH::Control::Info("", "", "(F10) Toggle Pane", ImGuiH::Control::Flags::Disabled); ImGuiH::Panel::End(); } // Start rendering the scene helloVk.prepareFrame(); // Start command buffer of this frame auto curFrame = helloVk.getCurFrame(); const vk::CommandBuffer& cmdBuf = helloVk.getCommandBuffers()[curFrame]; cmdBuf.begin({vk::CommandBufferUsageFlagBits::eOneTimeSubmit}); // Updating camera buffer helloVk.updateUniformBuffer(cmdBuf); // Clearing screen vk::ClearValue clearValues[2]; clearValues[0].setColor( std::array({clearColor[0], clearColor[1], clearColor[2], clearColor[3]})); clearValues[1].setDepthStencil({1.0f, 0}); // Offscreen render pass { vk::RenderPassBeginInfo offscreenRenderPassBeginInfo; offscreenRenderPassBeginInfo.setClearValueCount(2); offscreenRenderPassBeginInfo.setPClearValues(clearValues); offscreenRenderPassBeginInfo.setRenderPass(helloVk.m_offscreenRenderPass); offscreenRenderPassBeginInfo.setFramebuffer(helloVk.m_offscreenFramebuffer); offscreenRenderPassBeginInfo.setRenderArea({{}, helloVk.getSize()}); // Rendering Scene if(useRaytracer) { helloVk.raytrace(cmdBuf, clearColor); } else { cmdBuf.beginRenderPass(offscreenRenderPassBeginInfo, vk::SubpassContents::eInline); helloVk.rasterize(cmdBuf); cmdBuf.endRenderPass(); } } // 2nd rendering pass: tone mapper, UI { vk::RenderPassBeginInfo postRenderPassBeginInfo; postRenderPassBeginInfo.setClearValueCount(2); postRenderPassBeginInfo.setPClearValues(clearValues); postRenderPassBeginInfo.setRenderPass(helloVk.getRenderPass()); postRenderPassBeginInfo.setFramebuffer(helloVk.getFramebuffers()[curFrame]); postRenderPassBeginInfo.setRenderArea({{}, helloVk.getSize()}); cmdBuf.beginRenderPass(postRenderPassBeginInfo, vk::SubpassContents::eInline); // Rendering tonemapper helloVk.drawPost(cmdBuf); // Rendering UI ImGui::Render(); ImGui::RenderDrawDataVK(cmdBuf, ImGui::GetDrawData()); cmdBuf.endRenderPass(); } // Submit for display cmdBuf.end(); helloVk.submitFrame(); } // Cleanup helloVk.getDevice().waitIdle(); helloVk.destroyResources(); helloVk.destroy(); vkctx.deinit(); glfwDestroyWindow(window); glfwTerminate(); return 0; }