87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/* Copyright (c) 2019-2024, Sascha Willems
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Push descriptors
|
|
*
|
|
* Note: Requires a device that supports the VK_KHR_push_descriptor extension
|
|
*
|
|
* Push descriptors apply the push constants concept to descriptor sets. So instead of creating
|
|
* per-model descriptor sets (along with a pool for each descriptor type) for rendering multiple objects,
|
|
* this example uses push descriptors to pass descriptor sets for per-model textures and matrices
|
|
* at command buffer creation time.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "api_vulkan_sample.h"
|
|
|
|
class PushDescriptors : public ApiVulkanSample
|
|
{
|
|
public:
|
|
bool animate = true;
|
|
|
|
PFN_vkCmdPushDescriptorSetKHR vkCmdPushDescriptorSetKHR;
|
|
VkPhysicalDevicePushDescriptorPropertiesKHR push_descriptor_properties{};
|
|
|
|
struct Cube
|
|
{
|
|
Texture texture;
|
|
std::unique_ptr<vkb::core::BufferC> uniform_buffer;
|
|
glm::vec3 rotation;
|
|
glm::mat4 model_mat;
|
|
};
|
|
std::array<Cube, 2> cubes;
|
|
|
|
struct Models
|
|
{
|
|
std::unique_ptr<vkb::sg::SubMesh> cube;
|
|
} models;
|
|
|
|
struct UniformBuffers
|
|
{
|
|
std::unique_ptr<vkb::core::BufferC> scene;
|
|
} uniform_buffers;
|
|
|
|
struct UboScene
|
|
{
|
|
glm::mat4 projection;
|
|
glm::mat4 view;
|
|
} ubo_scene;
|
|
|
|
VkPipeline pipeline;
|
|
VkPipelineLayout pipeline_layout;
|
|
VkDescriptorSetLayout descriptor_set_layout;
|
|
|
|
PushDescriptors();
|
|
~PushDescriptors();
|
|
virtual void request_gpu_features(vkb::PhysicalDevice &gpu) override;
|
|
void build_command_buffers() override;
|
|
void load_assets();
|
|
void setup_descriptor_set_layout();
|
|
void prepare_pipelines();
|
|
void prepare_uniform_buffers();
|
|
void update_uniform_buffers();
|
|
void update_cube_uniform_buffers(float delta_time);
|
|
void draw();
|
|
bool prepare(const vkb::ApplicationOptions &options) override;
|
|
virtual void render(float delta_time) override;
|
|
virtual void on_update_ui_overlay(vkb::Drawer &drawer) override;
|
|
};
|
|
|
|
std::unique_ptr<vkb::VulkanSampleC> create_push_descriptors();
|