init
This commit is contained in:
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# Copyright (c) 2020-2025, Holochip Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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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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get_filename_component(FOLDER_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
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get_filename_component(PARENT_DIR ${CMAKE_CURRENT_LIST_DIR} PATH)
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get_filename_component(CATEGORY_NAME ${PARENT_DIR} NAME)
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add_sample(
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ID ${FOLDER_NAME}
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CATEGORY ${CATEGORY_NAME}
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AUTHOR "Holochip"
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NAME "Dynamic Rendering"
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DESCRIPTION "Demonstrates the dynamic rendering extension to streamline render passes and avoid the requirement of render pass objects"
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SHADER_FILES_GLSL
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"dynamic_rendering/glsl/gbuffer.vert"
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"dynamic_rendering/glsl/gbuffer.frag"
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SHADER_FILES_HLSL
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"dynamic_rendering/hlsl/gbuffer.vert.hlsl"
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"dynamic_rendering/hlsl/gbuffer.frag.hlsl"
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SHADER_FILES_SLANG
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"dynamic_rendering/slang/gbuffer.vert.slang"
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"dynamic_rendering/slang/gbuffer.frag.slang")
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@@ -0,0 +1,158 @@
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////
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Copyright (c) 2021-2023, Holochip
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SPDX-License-Identifier: Apache-2.0
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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= Dynamic Rendering
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ifdef::site-gen-antora[]
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TIP: The source for this sample can be found in the https://github.com/KhronosGroup/Vulkan-Samples/tree/main/samples/extensions/dynamic_rendering[Khronos Vulkan samples github repository].
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endif::[]
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== Overview
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This sample demonstrates how to use the `VK_KHR_dynamic_rendering` extension, which eliminates the need to create render passes and improves flexibility while developing render pipelines.
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This extension changes how rendering resources are managed.
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Rather than using render pass objects, this extension allows the developer to directly reference rendering attachments prior to the start of rendering.
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Below is a comparison of the common Vulkan render pass construction and dynamic rendering.
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|===
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| Vulkan 1.0 | Dynamic Rendering
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| Rendering begins with `vkCmdBeginRenderPass`
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| Rendering begins with `vkCmdBeginRenderingKHR`
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| Rendering struct is `VkRenderPassBeginInfo`
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| Rendering struct is `VkRenderingInfoKHR`
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| Attachments are referenced by `VkFramebuffer`
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| Attachments are referenced by `VkRenderingAttachmentInfoKHR`
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| `VkFramebuffer` objects are heap-allocated and opaque
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| `VkRenderingAttachmentInfoKHR` objects are stack-allocated
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| Graphics pipeline creation references a `VkRenderPass`
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| Graphics pipeline creation references a `VkPipelineRenderingCreateInfoKHR`
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|
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|
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|===
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More detail is provided in the sections that follow.
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== Rendering Attachments
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Previously, developers had to create render passes and framebuffers, which would be referenced in `VkRenderPassBeginInfo`.
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This is illustrated in the non-dynamic version of the command buffer construction sample code:
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[,C++]
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----
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VkRenderPassBeginInfo render_pass_begin_info = vkb::initializers::render_pass_begin_info();
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render_pass_begin_info.renderPass = render_pass;
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render_pass_begin_info.framebuffer = framebuffers[i];
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render_pass_begin_info.renderArea.extent.width = width;
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render_pass_begin_info.renderArea.extent.height = height;
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render_pass_begin_info.clearValueCount = 3;
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render_pass_begin_info.pClearValues = clear_values.data();
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vkCmdBeginRenderPass(draw_cmd_buffer, &render_pass_begin_info, VK_SUBPASS_CONTENTS_INLINE);
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draw_scene();
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vkCmdEndRenderPass(draw_cmd_buffer);
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----
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However, with dynamic rendering, the render pass and framebuffer structs are replaced by `VkRenderingAttachmentInfoKHR`, which contains information about color, depth, and stencil attachments, and `VkRenderingInfoKHR`, which references the attachments.
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These structs are used at the start of rendering with the new command `vkCmdBeginRenderingKHR`, as shown in the dynamic version of the command buffer construction sample code:
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[,C++]
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----
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VkRenderingAttachmentInfoKHR color_attachment_info = vkb::initializers::rendering_attachment_info();
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color_attachment_info.imageView = swapchain_buffers[i].view; // color_attachment.image_view;
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...
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VkRenderingAttachmentInfoKHR depth_attachment_info = vkb::initializers::rendering_attachment_info();
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depth_attachment_info.imageView = depth_stencil.view;
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...
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auto render_area = VkRect2D{VkOffset2D{}, VkExtent2D{width, height}};
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auto render_info = vkb::initializers::rendering_info(render_area, 1, &color_attachment_info);
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render_info.layerCount = 1;
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render_info.pDepthAttachment = &depth_attachment_info;
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render_info.pStencilAttachment = &depth_attachment_info;
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vkCmdBeginRenderingKHR(draw_cmd_buffer, &render_info);
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draw_scene();
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vkCmdEndRenderingKHR(draw_cmd_buffer);
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----
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== Pipelines
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Dynamic rendering changes how graphics pipelines are created.
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Whereas before, the `VkGraphicsPipelineCreateInfo` struct was required to reference a non-null pointer to a `VkRenderPass` object, the dynamic rendering information is instead contained in a `VkPipelineRenderingCreateInfoKHR` struct referenced by `pNext` of the graphics pipeline create info:
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[,C++]
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----
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// Provide information for dynamic rendering
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VkPipelineRenderingCreateInfoKHR pipeline_create{VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR};
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pipeline_create.pNext = VK_NULL_HANDLE;
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pipeline_create.colorAttachmentCount = 1;
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pipeline_create.pColorAttachmentFormats = &color_rendering_format;
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pipeline_create.depthAttachmentFormat = depth_format;
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pipeline_create.stencilAttachmentFormat = depth_format;
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// Use the pNext to point to the rendering create struct
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VkGraphicsPipelineCreateInfo graphics_create{VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO};
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graphics_create.pNext = &pipeline_create; // reference the new dynamic structure
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graphics_create.renderPass = VK_NULL_HANDLE; // previously required non-null
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----
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During graphics pipeline construction, the `VkPipelineRenderingCreateInfoKHR` structure does not contain pointers to the actual attachment images (as the pointers aren't required until `VkRenderingAttachmentInfoKHR`);
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instead, only the number and format of the attachments are required.
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== Enabling the Extension
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The dynamic rendering api is provided in Vulkan 1.2.197 and the appropriate headers / SDK is required.
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In addition, since dynamic rendering is provided as an extension and may have varying levels of support, the developer must query availability for each device used.
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The device extension is provided by `VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME`, and additional features are provided by the `VkPhysicalDeviceDynamicRenderingFeaturesKHR` struct:
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[,C++]
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----
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typedef struct VkPhysicalDeviceDynamicRenderingFeaturesKHR {
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VkStructureType sType;
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void* pNext;
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VkBool32 dynamicRendering;
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} VkPhysicalDeviceDynamicRenderingFeaturesKHR;
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----
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In addition to enabling the extension, developers may need to dynamically query the function pointers for `vkCmdBeginRenderingKHR` and `vkCmdEndRenderingKHR` if the preprocessor macro `VK_NO_PROTOTYPES` is enabled.
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This can be achieved through `vkGetInstanceProcAddr`:
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[,C++]
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----
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VkInstance instance = get_device().get_gpu().get_instance().get_handle();
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assert(!!instance);
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vkCmdBeginRenderingKHR = (PFN_vkCmdBeginRenderingKHR) vkGetInstanceProcAddr(instance, "vkCmdBeginRenderingKHR");
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vkCmdEndRenderingKHR = (PFN_vkCmdEndRenderingKHR) vkGetInstanceProcAddr(instance, "vkCmdEndRenderingKHR");
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if (!vkCmdBeginRenderingKHR || !vkCmdEndRenderingKHR)
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{
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throw std::runtime_error("Unable to dynamically load vkCmdBeginRenderingKHR and vkCmdEndRenderingKHR");
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}
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----
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@@ -0,0 +1,472 @@
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/*
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* Copyright (c) 2021-2025, Holochip Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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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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#include "dynamic_rendering.h"
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DynamicRendering::DynamicRendering() :
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enable_dynamic(true)
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{
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title = "Dynamic Rendering";
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// Dynamic Rendering is a Vulkan 1.2 extension
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set_api_version(VK_API_VERSION_1_2);
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add_instance_extension(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
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add_device_extension(VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME);
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}
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DynamicRendering::~DynamicRendering()
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{
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if (has_device())
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{
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vkDestroySampler(get_device().get_handle(), textures.envmap.sampler, VK_NULL_HANDLE);
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textures = {};
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skybox.reset();
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object.reset();
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ubo.reset();
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vkDestroyPipeline(get_device().get_handle(), model_pipeline, VK_NULL_HANDLE);
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vkDestroyPipeline(get_device().get_handle(), skybox_pipeline, VK_NULL_HANDLE);
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vkDestroyPipelineLayout(get_device().get_handle(), pipeline_layout, VK_NULL_HANDLE);
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vkDestroyDescriptorSetLayout(get_device().get_handle(), descriptor_set_layout, VK_NULL_HANDLE);
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vkDestroyDescriptorPool(get_device().get_handle(), descriptor_pool, VK_NULL_HANDLE);
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}
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}
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bool DynamicRendering::prepare(const vkb::ApplicationOptions &options)
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{
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if (!ApiVulkanSample::prepare(options))
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{
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return false;
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}
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#if VK_NO_PROTOTYPES
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if (enable_dynamic)
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{
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VkInstance instance = get_device().get_gpu().get_instance().get_handle();
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assert(!!instance);
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vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetInstanceProcAddr(instance, "vkCmdBeginRenderingKHR"));
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vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetInstanceProcAddr(instance, "vkCmdEndRenderingKHR"));
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if (!vkCmdBeginRenderingKHR || !vkCmdEndRenderingKHR)
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{
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throw std::runtime_error("Unable to dynamically load vkCmdBeginRenderingKHR and vkCmdEndRenderingKHR");
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}
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}
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#endif
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camera.type = vkb::CameraType::LookAt;
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camera.set_position({0.f, 0.f, -4.f});
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camera.set_rotation({0.f, 180.f, 0.f});
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camera.set_perspective(60.f, static_cast<float>(width) / static_cast<float>(height), 256.f, 0.1f);
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load_assets();
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prepare_uniform_buffers();
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create_descriptor_pool();
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setup_descriptor_set_layout();
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create_descriptor_sets();
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if (!enable_dynamic)
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{
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create_render_pass_non_dynamic();
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}
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create_pipeline();
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build_command_buffers();
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prepared = true;
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return true;
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}
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void DynamicRendering::request_gpu_features(vkb::PhysicalDevice &gpu)
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{
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if (enable_dynamic)
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{
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REQUEST_REQUIRED_FEATURE(gpu,
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VkPhysicalDeviceDynamicRenderingFeaturesKHR,
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES_KHR,
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dynamicRendering);
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}
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if (gpu.get_features().samplerAnisotropy)
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{
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gpu.get_mutable_requested_features().samplerAnisotropy = true;
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}
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}
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void DynamicRendering::load_assets()
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{
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// Models
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skybox = load_model("scenes/cube.gltf");
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object = load_model("scenes/geosphere.gltf");
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// Load HDR cube map
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textures.envmap = load_texture_cubemap("textures/uffizi_rgba16f_cube.ktx", vkb::sg::Image::Color);
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}
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void DynamicRendering::prepare_uniform_buffers()
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{
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ubo = std::make_unique<vkb::core::BufferC>(get_device(), sizeof(ubo_vs), VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VMA_MEMORY_USAGE_CPU_TO_GPU);
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update_uniform_buffers();
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}
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void DynamicRendering::update_uniform_buffers()
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{
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ubo_vs.projection = camera.matrices.perspective;
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ubo_vs.modelview = camera.matrices.view * glm::mat4(1.f);
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ubo_vs.inverse_modelview = glm::inverse(camera.matrices.view);
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ubo_vs.skybox_modelview = camera.matrices.view;
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ubo->convert_and_update(ubo_vs);
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}
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void DynamicRendering::setup_descriptor_set_layout()
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{
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std::vector<VkDescriptorSetLayoutBinding> set_layout_bindings = {
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vkb::initializers::descriptor_set_layout_binding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, 0),
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vkb::initializers::descriptor_set_layout_binding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 1),
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};
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VkDescriptorSetLayoutCreateInfo descriptor_layout_create_info =
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vkb::initializers::descriptor_set_layout_create_info(set_layout_bindings.data(), static_cast<uint32_t>(set_layout_bindings.size()));
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VK_CHECK(vkCreateDescriptorSetLayout(get_device().get_handle(), &descriptor_layout_create_info, nullptr, &descriptor_set_layout));
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||||
|
||||
VkPipelineLayoutCreateInfo pipeline_layout_create_info =
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vkb::initializers::pipeline_layout_create_info(
|
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&descriptor_set_layout,
|
||||
1);
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VK_CHECK(vkCreatePipelineLayout(get_device().get_handle(), &pipeline_layout_create_info, nullptr, &pipeline_layout));
|
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}
|
||||
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||||
void DynamicRendering::create_descriptor_sets()
|
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{
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||||
VkDescriptorSetAllocateInfo alloc_info =
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vkb::initializers::descriptor_set_allocate_info(
|
||||
descriptor_pool,
|
||||
&descriptor_set_layout,
|
||||
1);
|
||||
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||||
VK_CHECK(vkAllocateDescriptorSets(get_device().get_handle(), &alloc_info, &descriptor_set));
|
||||
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||||
VkDescriptorBufferInfo matrix_buffer_descriptor = create_descriptor(*ubo);
|
||||
VkDescriptorImageInfo environment_image_descriptor = create_descriptor(textures.envmap);
|
||||
std::vector<VkWriteDescriptorSet> write_descriptor_sets = {
|
||||
vkb::initializers::write_descriptor_set(descriptor_set, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &matrix_buffer_descriptor),
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||||
vkb::initializers::write_descriptor_set(descriptor_set, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, &environment_image_descriptor),
|
||||
};
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||||
vkUpdateDescriptorSets(get_device().get_handle(), static_cast<uint32_t>(write_descriptor_sets.size()), write_descriptor_sets.data(), 0, nullptr);
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||||
}
|
||||
|
||||
void DynamicRendering::create_descriptor_pool()
|
||||
{
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||||
std::vector<VkDescriptorPoolSize> pool_sizes = {
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||||
vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 2),
|
||||
vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 2)};
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||||
uint32_t num_descriptor_sets = 4;
|
||||
VkDescriptorPoolCreateInfo descriptor_pool_create_info =
|
||||
vkb::initializers::descriptor_pool_create_info(static_cast<uint32_t>(pool_sizes.size()), pool_sizes.data(), num_descriptor_sets);
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VK_CHECK(vkCreateDescriptorPool(get_device().get_handle(), &descriptor_pool_create_info, nullptr, &descriptor_pool));
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||||
}
|
||||
|
||||
void DynamicRendering::create_pipeline()
|
||||
{
|
||||
VkPipelineInputAssemblyStateCreateInfo input_assembly_state =
|
||||
vkb::initializers::pipeline_input_assembly_state_create_info(
|
||||
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
|
||||
0,
|
||||
VK_FALSE);
|
||||
|
||||
VkPipelineRasterizationStateCreateInfo rasterization_state =
|
||||
vkb::initializers::pipeline_rasterization_state_create_info(
|
||||
VK_POLYGON_MODE_FILL,
|
||||
VK_CULL_MODE_BACK_BIT,
|
||||
VK_FRONT_FACE_COUNTER_CLOCKWISE,
|
||||
0);
|
||||
|
||||
VkPipelineColorBlendAttachmentState blend_attachment_state =
|
||||
vkb::initializers::pipeline_color_blend_attachment_state(
|
||||
0xf,
|
||||
VK_FALSE);
|
||||
|
||||
const auto color_attachment_state = vkb::initializers::pipeline_color_blend_attachment_state(0xf, VK_FALSE);
|
||||
|
||||
VkPipelineColorBlendStateCreateInfo color_blend_state =
|
||||
vkb::initializers::pipeline_color_blend_state_create_info(
|
||||
1,
|
||||
&blend_attachment_state);
|
||||
color_blend_state.attachmentCount = 1;
|
||||
color_blend_state.pAttachments = &color_attachment_state;
|
||||
|
||||
// Note: Using reversed depth-buffer for increased precision, so Greater depth values are kept
|
||||
VkPipelineDepthStencilStateCreateInfo depth_stencil_state =
|
||||
vkb::initializers::pipeline_depth_stencil_state_create_info(
|
||||
VK_FALSE,
|
||||
VK_FALSE,
|
||||
VK_COMPARE_OP_GREATER);
|
||||
|
||||
VkPipelineViewportStateCreateInfo viewport_state =
|
||||
vkb::initializers::pipeline_viewport_state_create_info(1, 1, 0);
|
||||
|
||||
VkPipelineMultisampleStateCreateInfo multisample_state =
|
||||
vkb::initializers::pipeline_multisample_state_create_info(
|
||||
VK_SAMPLE_COUNT_1_BIT,
|
||||
0);
|
||||
|
||||
std::vector<VkDynamicState> dynamic_state_enables = {
|
||||
VK_DYNAMIC_STATE_VIEWPORT,
|
||||
VK_DYNAMIC_STATE_SCISSOR};
|
||||
VkPipelineDynamicStateCreateInfo dynamic_state =
|
||||
vkb::initializers::pipeline_dynamic_state_create_info(
|
||||
dynamic_state_enables.data(),
|
||||
static_cast<uint32_t>(dynamic_state_enables.size()),
|
||||
0);
|
||||
|
||||
// Vertex bindings an attributes for model rendering
|
||||
// Binding description
|
||||
std::vector<VkVertexInputBindingDescription> vertex_input_bindings = {
|
||||
vkb::initializers::vertex_input_binding_description(0, sizeof(Vertex), VK_VERTEX_INPUT_RATE_VERTEX),
|
||||
};
|
||||
|
||||
// Attribute descriptions
|
||||
std::vector<VkVertexInputAttributeDescription> vertex_input_attributes = {
|
||||
vkb::initializers::vertex_input_attribute_description(0, 0, VK_FORMAT_R32G32B32_SFLOAT, 0), // Position
|
||||
vkb::initializers::vertex_input_attribute_description(0, 1, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 3), // Normal
|
||||
};
|
||||
|
||||
VkPipelineVertexInputStateCreateInfo vertex_input_state = vkb::initializers::pipeline_vertex_input_state_create_info();
|
||||
vertex_input_state.vertexBindingDescriptionCount = static_cast<uint32_t>(vertex_input_bindings.size());
|
||||
vertex_input_state.pVertexBindingDescriptions = vertex_input_bindings.data();
|
||||
vertex_input_state.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertex_input_attributes.size());
|
||||
vertex_input_state.pVertexAttributeDescriptions = vertex_input_attributes.data();
|
||||
|
||||
std::array<VkPipelineShaderStageCreateInfo, 2> shader_stages{};
|
||||
shader_stages[0] = load_shader("dynamic_rendering", "gbuffer.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shader_stages[1] = load_shader("dynamic_rendering", "gbuffer.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
// Create graphics pipeline for dynamic rendering
|
||||
VkFormat color_rendering_format = get_render_context().get_format();
|
||||
|
||||
// Provide information for dynamic rendering
|
||||
VkPipelineRenderingCreateInfoKHR pipeline_create{VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR};
|
||||
pipeline_create.pNext = VK_NULL_HANDLE;
|
||||
pipeline_create.colorAttachmentCount = 1;
|
||||
pipeline_create.pColorAttachmentFormats = &color_rendering_format;
|
||||
pipeline_create.depthAttachmentFormat = depth_format;
|
||||
if (!vkb::is_depth_only_format(depth_format))
|
||||
{
|
||||
pipeline_create.stencilAttachmentFormat = depth_format;
|
||||
}
|
||||
|
||||
// Use the pNext to point to the rendering create struct
|
||||
VkGraphicsPipelineCreateInfo graphics_create{VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO};
|
||||
graphics_create.pNext = &pipeline_create;
|
||||
graphics_create.renderPass = VK_NULL_HANDLE;
|
||||
graphics_create.pInputAssemblyState = &input_assembly_state;
|
||||
graphics_create.pRasterizationState = &rasterization_state;
|
||||
graphics_create.pColorBlendState = &color_blend_state;
|
||||
graphics_create.pMultisampleState = &multisample_state;
|
||||
graphics_create.pViewportState = &viewport_state;
|
||||
graphics_create.pDepthStencilState = &depth_stencil_state;
|
||||
graphics_create.pDynamicState = &dynamic_state;
|
||||
graphics_create.pVertexInputState = &vertex_input_state;
|
||||
graphics_create.stageCount = static_cast<uint32_t>(shader_stages.size());
|
||||
graphics_create.pStages = shader_stages.data();
|
||||
graphics_create.layout = pipeline_layout;
|
||||
|
||||
// Skybox pipeline (background cube)
|
||||
VkSpecializationInfo specialization_info;
|
||||
std::array<VkSpecializationMapEntry, 1> specialization_map_entries{};
|
||||
specialization_map_entries[0] = vkb::initializers::specialization_map_entry(0, 0, sizeof(uint32_t));
|
||||
uint32_t shadertype = 0;
|
||||
specialization_info = vkb::initializers::specialization_info(1, specialization_map_entries.data(), sizeof(shadertype), &shadertype);
|
||||
shader_stages[0].pSpecializationInfo = &specialization_info;
|
||||
shader_stages[1].pSpecializationInfo = &specialization_info;
|
||||
|
||||
if (!enable_dynamic)
|
||||
{
|
||||
graphics_create.pNext = VK_NULL_HANDLE;
|
||||
graphics_create.renderPass = render_pass;
|
||||
}
|
||||
|
||||
vkCreateGraphicsPipelines(get_device().get_handle(), VK_NULL_HANDLE, 1, &graphics_create, VK_NULL_HANDLE, &skybox_pipeline);
|
||||
|
||||
// Object rendering pipeline
|
||||
shadertype = 1;
|
||||
|
||||
// Enable depth test and write
|
||||
depth_stencil_state.depthWriteEnable = VK_TRUE;
|
||||
depth_stencil_state.depthTestEnable = VK_TRUE;
|
||||
// Flip cull mode
|
||||
rasterization_state.cullMode = VK_CULL_MODE_FRONT_BIT;
|
||||
vkCreateGraphicsPipelines(get_device().get_handle(), VK_NULL_HANDLE, 1, &graphics_create, VK_NULL_HANDLE, &model_pipeline);
|
||||
}
|
||||
|
||||
void DynamicRendering::create_render_pass_non_dynamic()
|
||||
{
|
||||
}
|
||||
|
||||
void DynamicRendering::draw()
|
||||
{
|
||||
ApiVulkanSample::prepare_frame();
|
||||
submit_info.commandBufferCount = 1;
|
||||
submit_info.pCommandBuffers = &draw_cmd_buffers[current_buffer];
|
||||
VK_CHECK(vkQueueSubmit(queue, 1, &submit_info, VK_NULL_HANDLE));
|
||||
ApiVulkanSample::submit_frame();
|
||||
}
|
||||
|
||||
void DynamicRendering::build_command_buffers()
|
||||
{
|
||||
std::array<VkClearValue, 2> clear_values{};
|
||||
clear_values[0].color = {{0.0f, 0.0f, 0.0f, 0.0f}};
|
||||
clear_values[1].depthStencil = {0.0f, 0};
|
||||
|
||||
int i = -1;
|
||||
for (auto &draw_cmd_buffer : draw_cmd_buffers)
|
||||
{
|
||||
i++;
|
||||
auto command_begin = vkb::initializers::command_buffer_begin_info();
|
||||
VK_CHECK(vkBeginCommandBuffer(draw_cmd_buffer, &command_begin));
|
||||
|
||||
auto draw_scene = [&] {
|
||||
VkViewport viewport = vkb::initializers::viewport(static_cast<float>(width), static_cast<float>(height), 0.0f, 1.0f);
|
||||
vkCmdSetViewport(draw_cmd_buffer, 0, 1, &viewport);
|
||||
|
||||
VkRect2D scissor = vkb::initializers::rect2D(static_cast<int>(width), static_cast<int>(height), 0, 0);
|
||||
vkCmdSetScissor(draw_cmd_buffer, 0, 1, &scissor);
|
||||
|
||||
// One descriptor set is used, and the draw type is toggled by a specialization constant
|
||||
vkCmdBindDescriptorSets(draw_cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline_layout, 0, 1, &descriptor_set, 0, nullptr);
|
||||
|
||||
// skybox
|
||||
vkCmdBindPipeline(draw_cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, skybox_pipeline);
|
||||
draw_model(skybox, draw_cmd_buffer);
|
||||
|
||||
// object
|
||||
vkCmdBindPipeline(draw_cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, model_pipeline);
|
||||
draw_model(object, draw_cmd_buffer);
|
||||
|
||||
// Note: This sample does not render a UI, as the framework's UI overlay doesn't handle dynamic rendering
|
||||
};
|
||||
|
||||
VkImageSubresourceRange range{};
|
||||
range.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
range.baseMipLevel = 0;
|
||||
range.levelCount = VK_REMAINING_MIP_LEVELS;
|
||||
range.baseArrayLayer = 0;
|
||||
range.layerCount = VK_REMAINING_ARRAY_LAYERS;
|
||||
|
||||
VkImageSubresourceRange depth_range{range};
|
||||
depth_range.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
|
||||
|
||||
if (enable_dynamic)
|
||||
{
|
||||
vkb::image_layout_transition(draw_cmd_buffer,
|
||||
swapchain_buffers[i].image,
|
||||
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
|
||||
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
|
||||
0,
|
||||
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
|
||||
VK_IMAGE_LAYOUT_UNDEFINED,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
|
||||
range);
|
||||
|
||||
vkb::image_layout_transition(draw_cmd_buffer,
|
||||
depth_stencil.image,
|
||||
VK_IMAGE_LAYOUT_UNDEFINED,
|
||||
VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL,
|
||||
depth_range);
|
||||
|
||||
VkRenderingAttachmentInfoKHR color_attachment_info = vkb::initializers::rendering_attachment_info();
|
||||
color_attachment_info.imageView = swapchain_buffers[i].view; // color_attachment.image_view;
|
||||
color_attachment_info.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
|
||||
color_attachment_info.resolveMode = VK_RESOLVE_MODE_NONE;
|
||||
color_attachment_info.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
color_attachment_info.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
color_attachment_info.clearValue = clear_values[0];
|
||||
|
||||
VkRenderingAttachmentInfoKHR depth_attachment_info = vkb::initializers::rendering_attachment_info();
|
||||
depth_attachment_info.imageView = depth_stencil.view;
|
||||
depth_attachment_info.imageLayout = VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL;
|
||||
depth_attachment_info.resolveMode = VK_RESOLVE_MODE_NONE;
|
||||
depth_attachment_info.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
depth_attachment_info.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
depth_attachment_info.clearValue = clear_values[1];
|
||||
|
||||
auto render_area = VkRect2D{VkOffset2D{}, VkExtent2D{width, height}};
|
||||
auto render_info = vkb::initializers::rendering_info(render_area, 1, &color_attachment_info);
|
||||
render_info.layerCount = 1;
|
||||
render_info.pDepthAttachment = &depth_attachment_info;
|
||||
if (!vkb::is_depth_only_format(depth_format))
|
||||
{
|
||||
render_info.pStencilAttachment = &depth_attachment_info;
|
||||
}
|
||||
|
||||
vkCmdBeginRenderingKHR(draw_cmd_buffer, &render_info);
|
||||
draw_scene();
|
||||
vkCmdEndRenderingKHR(draw_cmd_buffer);
|
||||
|
||||
vkb::image_layout_transition(draw_cmd_buffer,
|
||||
swapchain_buffers[i].image,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
|
||||
range);
|
||||
}
|
||||
else
|
||||
{
|
||||
VkRenderPassBeginInfo render_pass_begin_info = vkb::initializers::render_pass_begin_info();
|
||||
render_pass_begin_info.renderPass = render_pass;
|
||||
render_pass_begin_info.framebuffer = framebuffers[i];
|
||||
render_pass_begin_info.renderArea.extent.width = width;
|
||||
render_pass_begin_info.renderArea.extent.height = height;
|
||||
render_pass_begin_info.clearValueCount = 3;
|
||||
render_pass_begin_info.pClearValues = clear_values.data();
|
||||
|
||||
vkCmdBeginRenderPass(draw_cmd_buffer, &render_pass_begin_info, VK_SUBPASS_CONTENTS_INLINE);
|
||||
|
||||
draw_scene();
|
||||
|
||||
vkCmdEndRenderPass(draw_cmd_buffer);
|
||||
}
|
||||
|
||||
VK_CHECK(vkEndCommandBuffer(draw_cmd_buffer));
|
||||
}
|
||||
}
|
||||
|
||||
void DynamicRendering::render(float delta_time)
|
||||
{
|
||||
if (!prepared)
|
||||
{
|
||||
return;
|
||||
}
|
||||
draw();
|
||||
if (camera.updated)
|
||||
{
|
||||
update_uniform_buffers();
|
||||
}
|
||||
}
|
||||
|
||||
void DynamicRendering::view_changed()
|
||||
{
|
||||
}
|
||||
|
||||
void DynamicRendering::on_update_ui_overlay(vkb::Drawer &drawer)
|
||||
{
|
||||
}
|
||||
|
||||
std::unique_ptr<vkb::VulkanSampleC> create_dynamic_rendering()
|
||||
{
|
||||
return std::make_unique<DynamicRendering>();
|
||||
}
|
||||
@@ -0,0 +1,80 @@
|
||||
/*
|
||||
* Copyright (c) 2021-2024, Holochip Corporation
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 the "License";
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "api_vulkan_sample.h"
|
||||
|
||||
class DynamicRendering : public ApiVulkanSample
|
||||
{
|
||||
public:
|
||||
DynamicRendering();
|
||||
~DynamicRendering() override;
|
||||
|
||||
bool prepare(const vkb::ApplicationOptions &options) override;
|
||||
|
||||
void render(float delta_time) override;
|
||||
void build_command_buffers() override;
|
||||
void view_changed() override;
|
||||
void on_update_ui_overlay(vkb::Drawer &drawer) override;
|
||||
void request_gpu_features(vkb::PhysicalDevice &gpu) override;
|
||||
|
||||
private:
|
||||
void load_assets();
|
||||
void prepare_uniform_buffers();
|
||||
void update_uniform_buffers();
|
||||
void setup_descriptor_set_layout();
|
||||
void create_descriptor_sets();
|
||||
void create_descriptor_pool();
|
||||
void create_pipeline();
|
||||
void create_render_pass_non_dynamic();
|
||||
void draw();
|
||||
|
||||
struct
|
||||
{
|
||||
Texture envmap;
|
||||
} textures;
|
||||
|
||||
struct UBOVS
|
||||
{
|
||||
glm::mat4 projection;
|
||||
glm::mat4 modelview;
|
||||
glm::mat4 skybox_modelview;
|
||||
glm::mat4 inverse_modelview;
|
||||
float modelscale = 0.05f;
|
||||
} ubo_vs;
|
||||
|
||||
std::unique_ptr<vkb::sg::SubMesh> skybox;
|
||||
std::unique_ptr<vkb::sg::SubMesh> object;
|
||||
std::unique_ptr<vkb::core::BufferC> ubo;
|
||||
|
||||
VkPipeline model_pipeline{VK_NULL_HANDLE};
|
||||
VkPipeline skybox_pipeline{VK_NULL_HANDLE};
|
||||
VkPipelineLayout pipeline_layout{VK_NULL_HANDLE};
|
||||
VkDescriptorSet descriptor_set{VK_NULL_HANDLE};
|
||||
VkDescriptorSetLayout descriptor_set_layout{VK_NULL_HANDLE};
|
||||
VkDescriptorPool descriptor_pool{VK_NULL_HANDLE};
|
||||
|
||||
#if VK_NO_PROTOTYPES
|
||||
PFN_vkCmdBeginRenderingKHR vkCmdBeginRenderingKHR{VK_NULL_HANDLE};
|
||||
PFN_vkCmdEndRenderingKHR vkCmdEndRenderingKHR{VK_NULL_HANDLE};
|
||||
#endif
|
||||
bool enable_dynamic;
|
||||
};
|
||||
|
||||
std::unique_ptr<vkb::VulkanSampleC> create_dynamic_rendering();
|
||||
Reference in New Issue
Block a user