637 lines
No EOL
22 KiB
C++
637 lines
No EOL
22 KiB
C++
/*
|
|
* Vulkan Example - Multi threaded command buffer generation and rendering
|
|
*
|
|
* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de
|
|
*
|
|
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#include <vector>
|
|
#include <thread>
|
|
#include <random>
|
|
|
|
#define GLM_FORCE_RADIANS
|
|
#define GLM_FORCE_DEPTH_ZERO_TO_ONE
|
|
#include <glm/glm.hpp>
|
|
#include <glm/gtc/matrix_transform.hpp>
|
|
|
|
#include <vulkan/vulkan.h>
|
|
#include "vulkanexamplebase.h"
|
|
|
|
#include "threadpool.hpp"
|
|
#include "frustum.hpp"
|
|
|
|
#include "VulkanModel.hpp"
|
|
|
|
#define VERTEX_BUFFER_BIND_ID 0
|
|
#define ENABLE_VALIDATION false
|
|
|
|
class VulkanExample : public VulkanExampleBase
|
|
{
|
|
public:
|
|
// Vertex layout for the models
|
|
vks::VertexLayout vertexLayout = vks::VertexLayout({
|
|
vks::VERTEX_COMPONENT_POSITION,
|
|
vks::VERTEX_COMPONENT_NORMAL,
|
|
vks::VERTEX_COMPONENT_COLOR,
|
|
});
|
|
|
|
struct {
|
|
vks::Model ufo;
|
|
vks::Model skysphere;
|
|
} models;
|
|
|
|
struct {
|
|
VkPipelineVertexInputStateCreateInfo inputState;
|
|
std::vector<VkVertexInputBindingDescription> bindingDescriptions;
|
|
std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
|
|
} vertices;
|
|
|
|
// Shared matrices used for thread push constant blocks
|
|
struct {
|
|
glm::mat4 projection;
|
|
glm::mat4 view;
|
|
} matrices;
|
|
|
|
struct {
|
|
VkPipeline phong;
|
|
VkPipeline starsphere;
|
|
} pipelines;
|
|
|
|
VkPipelineLayout pipelineLayout;
|
|
|
|
VkCommandBuffer primaryCommandBuffer;
|
|
VkCommandBuffer secondaryCommandBuffer;
|
|
|
|
// Number of animated objects to be renderer
|
|
// by using threads and secondary command buffers
|
|
uint32_t numObjectsPerThread;
|
|
|
|
// Multi threaded stuff
|
|
// Max. number of concurrent threads
|
|
uint32_t numThreads;
|
|
|
|
// Use push constants to update shader
|
|
// parameters on a per-thread base
|
|
struct ThreadPushConstantBlock {
|
|
glm::mat4 mvp;
|
|
glm::vec3 color;
|
|
};
|
|
|
|
struct ObjectData {
|
|
glm::mat4 model;
|
|
glm::vec3 pos;
|
|
glm::vec3 rotation;
|
|
float rotationDir;
|
|
float rotationSpeed;
|
|
float scale;
|
|
float deltaT;
|
|
float stateT = 0;
|
|
bool visible = true;
|
|
};
|
|
|
|
struct ThreadData {
|
|
VkCommandPool commandPool;
|
|
// One command buffer per render object
|
|
std::vector<VkCommandBuffer> commandBuffer;
|
|
// One push constant block per render object
|
|
std::vector<ThreadPushConstantBlock> pushConstBlock;
|
|
// Per object information (position, rotation, etc.)
|
|
std::vector<ObjectData> objectData;
|
|
};
|
|
std::vector<ThreadData> threadData;
|
|
|
|
vks::ThreadPool threadPool;
|
|
|
|
// Fence to wait for all command buffers to finish before
|
|
// presenting to the swap chain
|
|
VkFence renderFence = {};
|
|
|
|
// Max. dimension of the ufo mesh for use as the sphere
|
|
// radius for frustum culling
|
|
float objectSphereDim;
|
|
|
|
// View frustum for culling invisible objects
|
|
vks::Frustum frustum;
|
|
|
|
std::default_random_engine rndEngine;
|
|
|
|
VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
|
|
{
|
|
zoom = -32.5f;
|
|
zoomSpeed = 2.5f;
|
|
rotationSpeed = 0.5f;
|
|
rotation = { 0.0f, 37.5f, 0.0f };
|
|
title = "Multi threaded command buffer";
|
|
settings.overlay = true;
|
|
// Get number of max. concurrrent threads
|
|
numThreads = std::thread::hardware_concurrency();
|
|
assert(numThreads > 0);
|
|
#if defined(__ANDROID__)
|
|
LOGD("numThreads = %d", numThreads);
|
|
#else
|
|
std::cout << "numThreads = " << numThreads << std::endl;
|
|
#endif
|
|
threadPool.setThreadCount(numThreads);
|
|
numObjectsPerThread = 512 / numThreads;
|
|
rndEngine.seed(benchmark.active ? 0 : (unsigned)time(nullptr));
|
|
}
|
|
|
|
~VulkanExample()
|
|
{
|
|
// Clean up used Vulkan resources
|
|
// Note : Inherited destructor cleans up resources stored in base class
|
|
vkDestroyPipeline(device, pipelines.phong, nullptr);
|
|
vkDestroyPipeline(device, pipelines.starsphere, nullptr);
|
|
|
|
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
|
|
|
|
vkFreeCommandBuffers(device, cmdPool, 1, &primaryCommandBuffer);
|
|
vkFreeCommandBuffers(device, cmdPool, 1, &secondaryCommandBuffer);
|
|
|
|
models.ufo.destroy();
|
|
models.skysphere.destroy();
|
|
|
|
for (auto& thread : threadData)
|
|
{
|
|
vkFreeCommandBuffers(device, thread.commandPool, thread.commandBuffer.size(), thread.commandBuffer.data());
|
|
vkDestroyCommandPool(device, thread.commandPool, nullptr);
|
|
}
|
|
|
|
vkDestroyFence(device, renderFence, nullptr);
|
|
}
|
|
|
|
float rnd(float range)
|
|
{
|
|
std::uniform_real_distribution<float> rndDist(0.0f, range);
|
|
return rndDist(rndEngine);
|
|
}
|
|
|
|
// Create all threads and initialize shader push constants
|
|
void prepareMultiThreadedRenderer()
|
|
{
|
|
// Since this demo updates the command buffers on each frame
|
|
// we don't use the per-framebuffer command buffers from the
|
|
// base class, and create a single primary command buffer instead
|
|
VkCommandBufferAllocateInfo cmdBufAllocateInfo =
|
|
vks::initializers::commandBufferAllocateInfo(
|
|
cmdPool,
|
|
VK_COMMAND_BUFFER_LEVEL_PRIMARY,
|
|
1);
|
|
VK_CHECK_RESULT(vkAllocateCommandBuffers(device, &cmdBufAllocateInfo, &primaryCommandBuffer));
|
|
|
|
// Create a secondary command buffer for rendering the star sphere
|
|
cmdBufAllocateInfo.level = VK_COMMAND_BUFFER_LEVEL_SECONDARY;
|
|
VK_CHECK_RESULT(vkAllocateCommandBuffers(device, &cmdBufAllocateInfo, &secondaryCommandBuffer));
|
|
|
|
threadData.resize(numThreads);
|
|
|
|
float maxX = std::floor(std::sqrt(numThreads * numObjectsPerThread));
|
|
uint32_t posX = 0;
|
|
uint32_t posZ = 0;
|
|
|
|
for (uint32_t i = 0; i < numThreads; i++) {
|
|
ThreadData *thread = &threadData[i];
|
|
|
|
// Create one command pool for each thread
|
|
VkCommandPoolCreateInfo cmdPoolInfo = vks::initializers::commandPoolCreateInfo();
|
|
cmdPoolInfo.queueFamilyIndex = swapChain.queueNodeIndex;
|
|
cmdPoolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
|
|
VK_CHECK_RESULT(vkCreateCommandPool(device, &cmdPoolInfo, nullptr, &thread->commandPool));
|
|
|
|
// One secondary command buffer per object that is updated by this thread
|
|
thread->commandBuffer.resize(numObjectsPerThread);
|
|
// Generate secondary command buffers for each thread
|
|
VkCommandBufferAllocateInfo secondaryCmdBufAllocateInfo =
|
|
vks::initializers::commandBufferAllocateInfo(
|
|
thread->commandPool,
|
|
VK_COMMAND_BUFFER_LEVEL_SECONDARY,
|
|
thread->commandBuffer.size());
|
|
VK_CHECK_RESULT(vkAllocateCommandBuffers(device, &secondaryCmdBufAllocateInfo, thread->commandBuffer.data()));
|
|
|
|
thread->pushConstBlock.resize(numObjectsPerThread);
|
|
thread->objectData.resize(numObjectsPerThread);
|
|
|
|
for (uint32_t j = 0; j < numObjectsPerThread; j++) {
|
|
float theta = 2.0f * float(M_PI) * rnd(1.0f);
|
|
float phi = acos(1.0f - 2.0f * rnd(1.0f));
|
|
thread->objectData[j].pos = glm::vec3(sin(phi) * cos(theta), 0.0f, cos(phi)) * 35.0f;
|
|
|
|
thread->objectData[j].rotation = glm::vec3(0.0f, rnd(360.0f), 0.0f);
|
|
thread->objectData[j].deltaT = rnd(1.0f);
|
|
thread->objectData[j].rotationDir = (rnd(100.0f) < 50.0f) ? 1.0f : -1.0f;
|
|
thread->objectData[j].rotationSpeed = (2.0f + rnd(4.0f)) * thread->objectData[j].rotationDir;
|
|
thread->objectData[j].scale = 0.75f + rnd(0.5f);
|
|
|
|
thread->pushConstBlock[j].color = glm::vec3(rnd(1.0f), rnd(1.0f), rnd(1.0f));
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// Builds the secondary command buffer for each thread
|
|
void threadRenderCode(uint32_t threadIndex, uint32_t cmdBufferIndex, VkCommandBufferInheritanceInfo inheritanceInfo)
|
|
{
|
|
ThreadData *thread = &threadData[threadIndex];
|
|
ObjectData *objectData = &thread->objectData[cmdBufferIndex];
|
|
|
|
// Check visibility against view frustum
|
|
objectData->visible = frustum.checkSphere(objectData->pos, objectSphereDim * 0.5f);
|
|
|
|
if (!objectData->visible)
|
|
{
|
|
return;
|
|
}
|
|
|
|
VkCommandBufferBeginInfo commandBufferBeginInfo = vks::initializers::commandBufferBeginInfo();
|
|
commandBufferBeginInfo.flags = VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
|
|
commandBufferBeginInfo.pInheritanceInfo = &inheritanceInfo;
|
|
|
|
VkCommandBuffer cmdBuffer = thread->commandBuffer[cmdBufferIndex];
|
|
|
|
VK_CHECK_RESULT(vkBeginCommandBuffer(cmdBuffer, &commandBufferBeginInfo));
|
|
|
|
VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
|
|
vkCmdSetViewport(cmdBuffer, 0, 1, &viewport);
|
|
|
|
VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
|
|
vkCmdSetScissor(cmdBuffer, 0, 1, &scissor);
|
|
|
|
vkCmdBindPipeline(cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.phong);
|
|
|
|
// Update
|
|
if (!paused) {
|
|
objectData->rotation.y += 2.5f * objectData->rotationSpeed * frameTimer;
|
|
if (objectData->rotation.y > 360.0f) {
|
|
objectData->rotation.y -= 360.0f;
|
|
}
|
|
objectData->deltaT += 0.15f * frameTimer;
|
|
if (objectData->deltaT > 1.0f)
|
|
objectData->deltaT -= 1.0f;
|
|
objectData->pos.y = sin(glm::radians(objectData->deltaT * 360.0f)) * 2.5f;
|
|
}
|
|
|
|
objectData->model = glm::translate(glm::mat4(1.0f), objectData->pos);
|
|
objectData->model = glm::rotate(objectData->model, -sinf(glm::radians(objectData->deltaT * 360.0f)) * 0.25f, glm::vec3(objectData->rotationDir, 0.0f, 0.0f));
|
|
objectData->model = glm::rotate(objectData->model, glm::radians(objectData->rotation.y), glm::vec3(0.0f, objectData->rotationDir, 0.0f));
|
|
objectData->model = glm::rotate(objectData->model, glm::radians(objectData->deltaT * 360.0f), glm::vec3(0.0f, objectData->rotationDir, 0.0f));
|
|
objectData->model = glm::scale(objectData->model, glm::vec3(objectData->scale));
|
|
|
|
thread->pushConstBlock[cmdBufferIndex].mvp = matrices.projection * matrices.view * objectData->model;
|
|
|
|
// Update shader push constant block
|
|
// Contains model view matrix
|
|
vkCmdPushConstants(
|
|
cmdBuffer,
|
|
pipelineLayout,
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
0,
|
|
sizeof(ThreadPushConstantBlock),
|
|
&thread->pushConstBlock[cmdBufferIndex]);
|
|
|
|
VkDeviceSize offsets[1] = { 0 };
|
|
vkCmdBindVertexBuffers(cmdBuffer, 0, 1, &models.ufo.vertices.buffer, offsets);
|
|
vkCmdBindIndexBuffer(cmdBuffer, models.ufo.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
|
|
vkCmdDrawIndexed(cmdBuffer, models.ufo.indexCount, 1, 0, 0, 0);
|
|
|
|
VK_CHECK_RESULT(vkEndCommandBuffer(cmdBuffer));
|
|
}
|
|
|
|
void updateSecondaryCommandBuffer(VkCommandBufferInheritanceInfo inheritanceInfo)
|
|
{
|
|
// Secondary command buffer for the sky sphere
|
|
VkCommandBufferBeginInfo commandBufferBeginInfo = vks::initializers::commandBufferBeginInfo();
|
|
commandBufferBeginInfo.flags = VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
|
|
commandBufferBeginInfo.pInheritanceInfo = &inheritanceInfo;
|
|
|
|
VK_CHECK_RESULT(vkBeginCommandBuffer(secondaryCommandBuffer, &commandBufferBeginInfo));
|
|
|
|
VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
|
|
vkCmdSetViewport(secondaryCommandBuffer, 0, 1, &viewport);
|
|
|
|
VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
|
|
vkCmdSetScissor(secondaryCommandBuffer, 0, 1, &scissor);
|
|
|
|
vkCmdBindPipeline(secondaryCommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.starsphere);
|
|
|
|
glm::mat4 view = glm::mat4(1.0f);
|
|
view = glm::rotate(view, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
view = glm::rotate(view, glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
view = glm::rotate(view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
glm::mat4 mvp = matrices.projection * view;
|
|
|
|
vkCmdPushConstants(
|
|
secondaryCommandBuffer,
|
|
pipelineLayout,
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
0,
|
|
sizeof(mvp),
|
|
&mvp);
|
|
|
|
VkDeviceSize offsets[1] = { 0 };
|
|
vkCmdBindVertexBuffers(secondaryCommandBuffer, 0, 1, &models.skysphere.vertices.buffer, offsets);
|
|
vkCmdBindIndexBuffer(secondaryCommandBuffer, models.skysphere.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
|
|
vkCmdDrawIndexed(secondaryCommandBuffer, models.skysphere.indexCount, 1, 0, 0, 0);
|
|
|
|
VK_CHECK_RESULT(vkEndCommandBuffer(secondaryCommandBuffer));
|
|
}
|
|
|
|
// Updates the secondary command buffers using a thread pool
|
|
// and puts them into the primary command buffer that's
|
|
// lat submitted to the queue for rendering
|
|
void updateCommandBuffers(VkFramebuffer frameBuffer)
|
|
{
|
|
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
|
|
|
|
VkClearValue clearValues[2];
|
|
clearValues[0].color = defaultClearColor;
|
|
clearValues[0].color = { {0.0f, 0.0f, 0.2f, 0.0f} };
|
|
clearValues[1].depthStencil = { 1.0f, 0 };
|
|
|
|
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
|
|
renderPassBeginInfo.renderPass = renderPass;
|
|
renderPassBeginInfo.renderArea.offset.x = 0;
|
|
renderPassBeginInfo.renderArea.offset.y = 0;
|
|
renderPassBeginInfo.renderArea.extent.width = width;
|
|
renderPassBeginInfo.renderArea.extent.height = height;
|
|
renderPassBeginInfo.clearValueCount = 2;
|
|
renderPassBeginInfo.pClearValues = clearValues;
|
|
renderPassBeginInfo.framebuffer = frameBuffer;
|
|
|
|
// Set target frame buffer
|
|
|
|
VK_CHECK_RESULT(vkBeginCommandBuffer(primaryCommandBuffer, &cmdBufInfo));
|
|
|
|
// The primary command buffer does not contain any rendering commands
|
|
// These are stored (and retrieved) from the secondary command buffers
|
|
vkCmdBeginRenderPass(primaryCommandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS);
|
|
|
|
// Inheritance info for the secondary command buffers
|
|
VkCommandBufferInheritanceInfo inheritanceInfo = vks::initializers::commandBufferInheritanceInfo();
|
|
inheritanceInfo.renderPass = renderPass;
|
|
// Secondary command buffer also use the currently active framebuffer
|
|
inheritanceInfo.framebuffer = frameBuffer;
|
|
|
|
// Contains the list of secondary command buffers to be executed
|
|
std::vector<VkCommandBuffer> commandBuffers;
|
|
|
|
// Secondary command buffer with star background sphere
|
|
updateSecondaryCommandBuffer(inheritanceInfo);
|
|
commandBuffers.push_back(secondaryCommandBuffer);
|
|
|
|
// Add a job to the thread's queue for each object to be rendered
|
|
for (uint32_t t = 0; t < numThreads; t++)
|
|
{
|
|
for (uint32_t i = 0; i < numObjectsPerThread; i++)
|
|
{
|
|
threadPool.threads[t]->addJob([=] { threadRenderCode(t, i, inheritanceInfo); });
|
|
}
|
|
}
|
|
|
|
threadPool.wait();
|
|
|
|
// Only submit if object is within the current view frustum
|
|
for (uint32_t t = 0; t < numThreads; t++)
|
|
{
|
|
for (uint32_t i = 0; i < numObjectsPerThread; i++)
|
|
{
|
|
if (threadData[t].objectData[i].visible)
|
|
{
|
|
commandBuffers.push_back(threadData[t].commandBuffer[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Execute render commands from the secondary command buffer
|
|
vkCmdExecuteCommands(primaryCommandBuffer, commandBuffers.size(), commandBuffers.data());
|
|
|
|
vkCmdEndRenderPass(primaryCommandBuffer);
|
|
|
|
VK_CHECK_RESULT(vkEndCommandBuffer(primaryCommandBuffer));
|
|
}
|
|
|
|
void loadMeshes()
|
|
{
|
|
models.ufo.loadFromFile(getAssetPath() + "models/retroufo_red_lowpoly.dae", vertexLayout, 0.12f, vulkanDevice, queue);
|
|
models.skysphere.loadFromFile(getAssetPath() + "models/sphere.obj", vertexLayout, 1.0f, vulkanDevice, queue);
|
|
objectSphereDim = std::max(std::max(models.ufo.dim.size.x, models.ufo.dim.size.y), models.ufo.dim.size.z);
|
|
}
|
|
|
|
void setupVertexDescriptions()
|
|
{
|
|
// Binding description
|
|
vertices.bindingDescriptions.resize(1);
|
|
vertices.bindingDescriptions[0] =
|
|
vks::initializers::vertexInputBindingDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
vertexLayout.stride(),
|
|
VK_VERTEX_INPUT_RATE_VERTEX);
|
|
|
|
// Attribute descriptions
|
|
// Describes memory layout and shader positions
|
|
vertices.attributeDescriptions.resize(3);
|
|
// Location 0 : Position
|
|
vertices.attributeDescriptions[0] =
|
|
vks::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
0,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
0);
|
|
// Location 1 : Normal
|
|
vertices.attributeDescriptions[1] =
|
|
vks::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
1,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
sizeof(float) * 3);
|
|
// Location 3 : Color
|
|
vertices.attributeDescriptions[2] =
|
|
vks::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
2,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
sizeof(float) * 6);
|
|
|
|
vertices.inputState = vks::initializers::pipelineVertexInputStateCreateInfo();
|
|
vertices.inputState.vertexBindingDescriptionCount = vertices.bindingDescriptions.size();
|
|
vertices.inputState.pVertexBindingDescriptions = vertices.bindingDescriptions.data();
|
|
vertices.inputState.vertexAttributeDescriptionCount = vertices.attributeDescriptions.size();
|
|
vertices.inputState.pVertexAttributeDescriptions = vertices.attributeDescriptions.data();
|
|
}
|
|
|
|
void setupPipelineLayout()
|
|
{
|
|
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
|
|
vks::initializers::pipelineLayoutCreateInfo(nullptr, 0);
|
|
|
|
// Push constants for model matrices
|
|
VkPushConstantRange pushConstantRange =
|
|
vks::initializers::pushConstantRange(
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
sizeof(ThreadPushConstantBlock),
|
|
0);
|
|
|
|
// Push constant ranges are part of the pipeline layout
|
|
pPipelineLayoutCreateInfo.pushConstantRangeCount = 1;
|
|
pPipelineLayoutCreateInfo.pPushConstantRanges = &pushConstantRange;
|
|
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
|
|
}
|
|
|
|
void preparePipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
|
|
vks::initializers::pipelineInputAssemblyStateCreateInfo(
|
|
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
|
|
0,
|
|
VK_FALSE);
|
|
|
|
VkPipelineRasterizationStateCreateInfo rasterizationState =
|
|
vks::initializers::pipelineRasterizationStateCreateInfo(
|
|
VK_POLYGON_MODE_FILL,
|
|
VK_CULL_MODE_BACK_BIT,
|
|
VK_FRONT_FACE_CLOCKWISE,
|
|
0);
|
|
|
|
VkPipelineColorBlendAttachmentState blendAttachmentState =
|
|
vks::initializers::pipelineColorBlendAttachmentState(
|
|
0xf,
|
|
VK_FALSE);
|
|
|
|
VkPipelineColorBlendStateCreateInfo colorBlendState =
|
|
vks::initializers::pipelineColorBlendStateCreateInfo(
|
|
1,
|
|
&blendAttachmentState);
|
|
|
|
VkPipelineDepthStencilStateCreateInfo depthStencilState =
|
|
vks::initializers::pipelineDepthStencilStateCreateInfo(
|
|
VK_TRUE,
|
|
VK_TRUE,
|
|
VK_COMPARE_OP_LESS_OR_EQUAL);
|
|
|
|
VkPipelineViewportStateCreateInfo viewportState =
|
|
vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
|
|
|
VkPipelineMultisampleStateCreateInfo multisampleState =
|
|
vks::initializers::pipelineMultisampleStateCreateInfo(
|
|
VK_SAMPLE_COUNT_1_BIT,
|
|
0);
|
|
|
|
std::vector<VkDynamicState> dynamicStateEnables = {
|
|
VK_DYNAMIC_STATE_VIEWPORT,
|
|
VK_DYNAMIC_STATE_SCISSOR
|
|
};
|
|
VkPipelineDynamicStateCreateInfo dynamicState =
|
|
vks::initializers::pipelineDynamicStateCreateInfo(
|
|
dynamicStateEnables.data(),
|
|
dynamicStateEnables.size(),
|
|
0);
|
|
|
|
// Solid rendering pipeline
|
|
// Load shaders
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
|
|
|
shaderStages[0] = loadShader(getAssetPath() + "shaders/multithreading/phong.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getAssetPath() + "shaders/multithreading/phong.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
|
|
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
|
|
vks::initializers::pipelineCreateInfo(
|
|
pipelineLayout,
|
|
renderPass,
|
|
0);
|
|
|
|
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
|
|
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
|
|
pipelineCreateInfo.pRasterizationState = &rasterizationState;
|
|
pipelineCreateInfo.pColorBlendState = &colorBlendState;
|
|
pipelineCreateInfo.pMultisampleState = &multisampleState;
|
|
pipelineCreateInfo.pViewportState = &viewportState;
|
|
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
|
|
pipelineCreateInfo.pDynamicState = &dynamicState;
|
|
pipelineCreateInfo.stageCount = shaderStages.size();
|
|
pipelineCreateInfo.pStages = shaderStages.data();
|
|
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.phong));
|
|
|
|
// Star sphere rendering pipeline
|
|
rasterizationState.cullMode = VK_CULL_MODE_FRONT_BIT;
|
|
depthStencilState.depthWriteEnable = VK_FALSE;
|
|
shaderStages[0] = loadShader(getAssetPath() + "shaders/multithreading/starsphere.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getAssetPath() + "shaders/multithreading/starsphere.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.starsphere));
|
|
}
|
|
|
|
void updateMatrices()
|
|
{
|
|
matrices.projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.1f, 256.0f);
|
|
matrices.view = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, zoom));
|
|
matrices.view = glm::rotate(matrices.view, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
matrices.view = glm::rotate(matrices.view, glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
matrices.view = glm::rotate(matrices.view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
frustum.update(matrices.projection * matrices.view);
|
|
}
|
|
|
|
void draw()
|
|
{
|
|
VulkanExampleBase::prepareFrame();
|
|
|
|
updateCommandBuffers(frameBuffers[currentBuffer]);
|
|
|
|
submitInfo.commandBufferCount = 1;
|
|
submitInfo.pCommandBuffers = &primaryCommandBuffer;
|
|
|
|
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, renderFence));
|
|
|
|
// Wait for fence to signal that all command buffers are ready
|
|
VkResult fenceRes;
|
|
do {
|
|
fenceRes = vkWaitForFences(device, 1, &renderFence, VK_TRUE, 100000000);
|
|
} while (fenceRes == VK_TIMEOUT);
|
|
VK_CHECK_RESULT(fenceRes);
|
|
vkResetFences(device, 1, &renderFence);
|
|
|
|
VulkanExampleBase::submitFrame();
|
|
}
|
|
|
|
void prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
// Create a fence for synchronization
|
|
VkFenceCreateInfo fenceCreateInfo = vks::initializers::fenceCreateInfo(VK_FLAGS_NONE);
|
|
vkCreateFence(device, &fenceCreateInfo, NULL, &renderFence);
|
|
loadMeshes();
|
|
setupVertexDescriptions();
|
|
setupPipelineLayout();
|
|
preparePipelines();
|
|
prepareMultiThreadedRenderer();
|
|
updateMatrices();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
draw();
|
|
}
|
|
|
|
virtual void viewChanged()
|
|
{
|
|
updateMatrices();
|
|
}
|
|
|
|
virtual void OnUpdateUIOverlay(vks::UIOverlay *overlay)
|
|
{
|
|
if (overlay->header("Statistics")) {
|
|
overlay->text("Active threads: %d", numThreads);
|
|
}
|
|
}
|
|
};
|
|
|
|
VULKAN_EXAMPLE_MAIN() |