83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/* Copyright (c) 2023-2024, Sascha Willems
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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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/*
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* Using VK_EXT_conditional_rendering, which executes or discards draw commands based on values sourced from a buffer
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*/
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#pragma once
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#include "api_vulkan_sample.h"
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class ConditionalRendering : public ApiVulkanSample
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{
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public:
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std::unique_ptr<vkb::core::BufferC> vertex_buffer = nullptr;
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std::unique_ptr<vkb::core::BufferC> index_buffer = nullptr;
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std::unique_ptr<vkb::sg::Scene> scene;
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struct SceneNode
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{
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std::string name;
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vkb::sg::Node *node;
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vkb::sg::SubMesh *sub_mesh;
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};
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std::vector<SceneNode> linear_scene_nodes;
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struct UniformData
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{
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glm::mat4 projection;
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glm::mat4 view;
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} uniform_data;
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std::unique_ptr<vkb::core::BufferC> uniform_buffer;
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VkPipeline pipeline;
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VkPipelineLayout pipeline_layout;
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VkDescriptorSet descriptor_set;
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VkDescriptorSetLayout descriptor_set_layout;
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struct
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{
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glm::mat4 model_matrix;
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glm::vec4 color;
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} push_const_block;
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std::vector<int32_t> conditional_visibility_list;
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std::unique_ptr<vkb::core::BufferC> conditional_visibility_buffer;
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ConditionalRendering();
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~ConditionalRendering();
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virtual void request_gpu_features(vkb::PhysicalDevice &gpu) override;
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void build_command_buffers() override;
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void load_assets();
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void setup_descriptor_pool();
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void setup_descriptor_set_layout();
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void setup_descriptor_sets();
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void prepare_pipelines();
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void prepare_uniform_buffers();
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void update_uniform_buffers();
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void prepare_visibility_buffer();
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void update_visibility_buffer();
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void draw();
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bool prepare(const vkb::ApplicationOptions &options) override;
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virtual void render(float delta_time) override;
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virtual void on_update_ui_overlay(vkb::Drawer &drawer) override;
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virtual bool resize(const uint32_t width, const uint32_t height) override;
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};
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std::unique_ptr<vkb::Application> create_conditional_rendering();
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