Moved example source files into sub folder
This commit is contained in:
saschawillems
parent
a17e3924b3
commit
94a076e1ae
69 changed files with 685 additions and 164 deletions
678
examples/texturearray/texturearray.cpp
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678
examples/texturearray/texturearray.cpp
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/*
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* Vulkan Example - Texture arrays and instanced rendering
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*
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* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de
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*
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* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <time.h>
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#include <vector>
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#define GLM_FORCE_RADIANS
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#define GLM_FORCE_DEPTH_ZERO_TO_ONE
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <vulkan/vulkan.h>
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#include "vulkanexamplebase.h"
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#include "VulkanTexture.hpp"
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#include "VulkanBuffer.hpp"
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#define VERTEX_BUFFER_BIND_ID 0
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#define ENABLE_VALIDATION false
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// Vertex layout for this example
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struct Vertex {
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float pos[3];
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float uv[2];
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};
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class VulkanExample : public VulkanExampleBase
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{
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public:
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// Number of array layers in texture array
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// Also used as instance count
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uint32_t layerCount;
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vks::Texture textureArray;
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struct {
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VkPipelineVertexInputStateCreateInfo inputState;
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std::vector<VkVertexInputBindingDescription> bindingDescriptions;
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std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
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} vertices;
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vks::Buffer vertexBuffer;
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vks::Buffer indexBuffer;
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uint32_t indexCount;
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vks::Buffer uniformBufferVS;
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struct UboInstanceData {
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// Model matrix
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glm::mat4 model;
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// Texture array index
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// Vec4 due to padding
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glm::vec4 arrayIndex;
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};
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struct {
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// Global matrices
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struct {
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glm::mat4 projection;
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glm::mat4 view;
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} matrices;
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// Seperate data for each instance
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UboInstanceData *instance;
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} uboVS;
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VkPipeline pipeline;
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VkPipelineLayout pipelineLayout;
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VkDescriptorSet descriptorSet;
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VkDescriptorSetLayout descriptorSetLayout;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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zoom = -15.0f;
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rotationSpeed = 0.25f;
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rotation = { -15.0f, 35.0f, 0.0f };
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title = "Texture arrays";
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settings.overlay = true;
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}
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~VulkanExample()
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{
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// Clean up used Vulkan resources
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// Note : Inherited destructor cleans up resources stored in base class
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// Clean up texture resources
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vkDestroyImageView(device, textureArray.view, nullptr);
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vkDestroyImage(device, textureArray.image, nullptr);
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vkDestroySampler(device, textureArray.sampler, nullptr);
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vkFreeMemory(device, textureArray.deviceMemory, nullptr);
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vkDestroyPipeline(device, pipeline, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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vertexBuffer.destroy();
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indexBuffer.destroy();
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uniformBufferVS.destroy();
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delete[] uboVS.instance;
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}
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void loadTextureArray(std::string filename, VkFormat format)
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{
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#if defined(__ANDROID__)
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// Textures are stored inside the apk on Android (compressed)
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// So they need to be loaded via the asset manager
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AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, filename.c_str(), AASSET_MODE_STREAMING);
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assert(asset);
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size_t size = AAsset_getLength(asset);
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assert(size > 0);
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void *textureData = malloc(size);
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AAsset_read(asset, textureData, size);
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AAsset_close(asset);
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gli::texture2d_array tex2DArray(gli::load((const char*)textureData, size));
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#else
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gli::texture2d_array tex2DArray(gli::load(filename));
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#endif
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assert(!tex2DArray.empty());
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textureArray.width = tex2DArray.extent().x;
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textureArray.height = tex2DArray.extent().y;
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layerCount = tex2DArray.layers();
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VkMemoryAllocateInfo memAllocInfo = vks::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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// Create a host-visible staging buffer that contains the raw image data
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VkBuffer stagingBuffer;
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VkDeviceMemory stagingMemory;
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VkBufferCreateInfo bufferCreateInfo = vks::initializers::bufferCreateInfo();
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bufferCreateInfo.size = tex2DArray.size();
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// This buffer is used as a transfer source for the buffer copy
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bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
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bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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VK_CHECK_RESULT(vkCreateBuffer(device, &bufferCreateInfo, nullptr, &stagingBuffer));
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// Get memory requirements for the staging buffer (alignment, memory type bits)
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vkGetBufferMemoryRequirements(device, stagingBuffer, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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// Get memory type index for a host visible buffer
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memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &stagingMemory));
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VK_CHECK_RESULT(vkBindBufferMemory(device, stagingBuffer, stagingMemory, 0));
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// Copy texture data into staging buffer
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uint8_t *data;
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VK_CHECK_RESULT(vkMapMemory(device, stagingMemory, 0, memReqs.size, 0, (void **)&data));
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memcpy(data, tex2DArray.data(), tex2DArray.size());
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vkUnmapMemory(device, stagingMemory);
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// Setup buffer copy regions for array layers
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std::vector<VkBufferImageCopy> bufferCopyRegions;
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size_t offset = 0;
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for (uint32_t layer = 0; layer < layerCount; layer++)
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{
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VkBufferImageCopy bufferCopyRegion = {};
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bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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bufferCopyRegion.imageSubresource.mipLevel = 0;
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bufferCopyRegion.imageSubresource.baseArrayLayer = layer;
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bufferCopyRegion.imageSubresource.layerCount = 1;
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bufferCopyRegion.imageExtent.width = static_cast<uint32_t>(tex2DArray[layer][0].extent().x);
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bufferCopyRegion.imageExtent.height = static_cast<uint32_t>(tex2DArray[layer][0].extent().y);
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bufferCopyRegion.imageExtent.depth = 1;
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bufferCopyRegion.bufferOffset = offset;
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bufferCopyRegions.push_back(bufferCopyRegion);
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// Increase offset into staging buffer for next level / face
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offset += tex2DArray[layer][0].size();
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}
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// Create optimal tiled target image
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VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.mipLevels = 1;
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imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageCreateInfo.extent = { textureArray.width, textureArray.height, 1 };
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imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
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imageCreateInfo.arrayLayers = layerCount;
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VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &textureArray.image));
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vkGetImageMemoryRequirements(device, textureArray.image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &textureArray.deviceMemory));
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VK_CHECK_RESULT(vkBindImageMemory(device, textureArray.image, textureArray.deviceMemory, 0));
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VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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// Image barrier for optimal image (target)
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// Set initial layout for all array layers (faces) of the optimal (target) tiled texture
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VkImageSubresourceRange subresourceRange = {};
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subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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subresourceRange.baseMipLevel = 0;
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subresourceRange.levelCount = 1;
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subresourceRange.layerCount = layerCount;
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vks::tools::setImageLayout(
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copyCmd,
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textureArray.image,
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VK_IMAGE_LAYOUT_UNDEFINED,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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subresourceRange);
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// Copy the cube map faces from the staging buffer to the optimal tiled image
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vkCmdCopyBufferToImage(
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copyCmd,
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stagingBuffer,
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textureArray.image,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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bufferCopyRegions.size(),
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bufferCopyRegions.data()
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);
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// Change texture image layout to shader read after all faces have been copied
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textureArray.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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vks::tools::setImageLayout(
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copyCmd,
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textureArray.image,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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textureArray.imageLayout,
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subresourceRange);
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VulkanExampleBase::flushCommandBuffer(copyCmd, queue, true);
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// Create sampler
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VkSamplerCreateInfo sampler = vks::initializers::samplerCreateInfo();
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sampler.magFilter = VK_FILTER_LINEAR;
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sampler.minFilter = VK_FILTER_LINEAR;
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sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler.addressModeV = sampler.addressModeU;
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sampler.addressModeW = sampler.addressModeU;
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sampler.mipLodBias = 0.0f;
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sampler.maxAnisotropy = 8;
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sampler.compareOp = VK_COMPARE_OP_NEVER;
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sampler.minLod = 0.0f;
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sampler.maxLod = 0.0f;
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sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &textureArray.sampler));
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// Create image view
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VkImageViewCreateInfo view = vks::initializers::imageViewCreateInfo();
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view.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
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view.format = format;
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view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
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view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
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view.subresourceRange.layerCount = layerCount;
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view.subresourceRange.levelCount = 1;
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view.image = textureArray.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &textureArray.view));
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// Clean up staging resources
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vkFreeMemory(device, stagingMemory, nullptr);
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vkDestroyBuffer(device, stagingBuffer, nullptr);
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}
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void loadTextures()
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{
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// Vulkan core supports three different compressed texture formats
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// As the support differs between implemementations we need to check device features and select a proper format and file
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std::string filename;
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VkFormat format;
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if (deviceFeatures.textureCompressionBC) {
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filename = "texturearray_bc3_unorm.ktx";
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format = VK_FORMAT_BC3_UNORM_BLOCK;
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}
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else if (deviceFeatures.textureCompressionASTC_LDR) {
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filename = "texturearray_astc_8x8_unorm.ktx";
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format = VK_FORMAT_ASTC_8x8_UNORM_BLOCK;
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}
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else if (deviceFeatures.textureCompressionETC2) {
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filename = "texturearray_etc2_unorm.ktx";
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format = VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;
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}
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else {
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vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
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}
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loadTextureArray(getAssetPath() + "textures/" + filename, format);
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}
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void buildCommandBuffers()
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{
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VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
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VkClearValue clearValues[2];
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clearValues[0].color = defaultClearColor;
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clearValues[1].depthStencil = { 1.0f, 0 };
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VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
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renderPassBeginInfo.renderPass = renderPass;
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renderPassBeginInfo.renderArea.offset.x = 0;
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renderPassBeginInfo.renderArea.offset.y = 0;
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renderPassBeginInfo.renderArea.extent.width = width;
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renderPassBeginInfo.renderArea.extent.height = height;
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renderPassBeginInfo.clearValueCount = 2;
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renderPassBeginInfo.pClearValues = clearValues;
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for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
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{
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// Set target frame buffer
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renderPassBeginInfo.framebuffer = frameBuffers[i];
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VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
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VkDeviceSize offsets[1] = { 0 };
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vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &vertexBuffer.buffer, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], indexBuffer.buffer, 0, VK_INDEX_TYPE_UINT32);
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vkCmdDrawIndexed(drawCmdBuffers[i], indexCount, layerCount, 0, 0, 0);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
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}
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}
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void generateQuad()
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{
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// Setup vertices for a single uv-mapped quad made from two triangles
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std::vector<Vertex> vertices =
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{
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{ { 2.5f, 2.5f, 0.0f }, { 1.0f, 1.0f } },
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{ { -2.5f, 2.5f, 0.0f }, { 0.0f, 1.0f } },
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{ { -2.5f, -2.5f, 0.0f }, { 0.0f, 0.0f } },
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{ { 2.5f, -2.5f, 0.0f }, { 1.0f, 0.0f } }
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};
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// Setup indices
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std::vector<uint32_t> indices = { 0,1,2, 2,3,0 };
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indexCount = static_cast<uint32_t>(indices.size());
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// Create buffers
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// For the sake of simplicity we won't stage the vertex data to the gpu memory
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// Vertex buffer
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VK_CHECK_RESULT(vulkanDevice->createBuffer(
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VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
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VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
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&vertexBuffer,
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vertices.size() * sizeof(Vertex),
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vertices.data()));
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// Index buffer
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VK_CHECK_RESULT(vulkanDevice->createBuffer(
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VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
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VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
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&indexBuffer,
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indices.size() * sizeof(uint32_t),
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indices.data()));
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}
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void setupVertexDescriptions()
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{
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// Binding description
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vertices.bindingDescriptions.resize(1);
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vertices.bindingDescriptions[0] =
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vks::initializers::vertexInputBindingDescription(
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VERTEX_BUFFER_BIND_ID,
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sizeof(Vertex),
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VK_VERTEX_INPUT_RATE_VERTEX);
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// Attribute descriptions
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// Describes memory layout and shader positions
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vertices.attributeDescriptions.resize(2);
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// Location 0 : Position
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vertices.attributeDescriptions[0] =
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vks::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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0,
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VK_FORMAT_R32G32B32_SFLOAT,
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0);
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// Location 1 : Texture coordinates
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vertices.attributeDescriptions[1] =
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vks::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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1,
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VK_FORMAT_R32G32_SFLOAT,
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sizeof(float) * 3);
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vertices.inputState = vks::initializers::pipelineVertexInputStateCreateInfo();
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vertices.inputState.vertexBindingDescriptionCount = vertices.bindingDescriptions.size();
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vertices.inputState.pVertexBindingDescriptions = vertices.bindingDescriptions.data();
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vertices.inputState.vertexAttributeDescriptionCount = vertices.attributeDescriptions.size();
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vertices.inputState.pVertexAttributeDescriptions = vertices.attributeDescriptions.data();
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}
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void setupDescriptorPool()
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{
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std::vector<VkDescriptorPoolSize> poolSizes =
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{
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vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
|
||||
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1)
|
||||
};
|
||||
|
||||
VkDescriptorPoolCreateInfo descriptorPoolInfo =
|
||||
vks::initializers::descriptorPoolCreateInfo(
|
||||
poolSizes.size(),
|
||||
poolSizes.data(),
|
||||
2);
|
||||
|
||||
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
|
||||
}
|
||||
|
||||
void setupDescriptorSetLayout()
|
||||
{
|
||||
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
|
||||
{
|
||||
// Binding 0 : Vertex shader uniform buffer
|
||||
vks::initializers::descriptorSetLayoutBinding(
|
||||
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
||||
VK_SHADER_STAGE_VERTEX_BIT,
|
||||
0),
|
||||
// Binding 1 : Fragment shader image sampler (texture array)
|
||||
vks::initializers::descriptorSetLayoutBinding(
|
||||
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
||||
VK_SHADER_STAGE_FRAGMENT_BIT,
|
||||
1)
|
||||
};
|
||||
|
||||
VkDescriptorSetLayoutCreateInfo descriptorLayout =
|
||||
vks::initializers::descriptorSetLayoutCreateInfo(
|
||||
setLayoutBindings.data(),
|
||||
setLayoutBindings.size());
|
||||
|
||||
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
|
||||
|
||||
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
|
||||
vks::initializers::pipelineLayoutCreateInfo(
|
||||
&descriptorSetLayout,
|
||||
1);
|
||||
|
||||
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
|
||||
}
|
||||
|
||||
void setupDescriptorSet()
|
||||
{
|
||||
VkDescriptorSetAllocateInfo allocInfo =
|
||||
vks::initializers::descriptorSetAllocateInfo(
|
||||
descriptorPool,
|
||||
&descriptorSetLayout,
|
||||
1);
|
||||
|
||||
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
|
||||
|
||||
// Image descriptor for the texture array
|
||||
VkDescriptorImageInfo textureDescriptor =
|
||||
vks::initializers::descriptorImageInfo(
|
||||
textureArray.sampler,
|
||||
textureArray.view,
|
||||
textureArray.imageLayout);
|
||||
|
||||
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
|
||||
{
|
||||
// Binding 0 : Vertex shader uniform buffer
|
||||
vks::initializers::writeDescriptorSet(
|
||||
descriptorSet,
|
||||
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
||||
0,
|
||||
&uniformBufferVS.descriptor),
|
||||
// Binding 1 : Fragment shader cubemap sampler
|
||||
vks::initializers::writeDescriptorSet(
|
||||
descriptorSet,
|
||||
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
||||
1,
|
||||
&textureDescriptor)
|
||||
};
|
||||
|
||||
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
||||
}
|
||||
|
||||
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_NONE,
|
||||
VK_FRONT_FACE_COUNTER_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);
|
||||
|
||||
// Instacing pipeline
|
||||
// Load shaders
|
||||
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
||||
|
||||
shaderStages[0] = loadShader(getAssetPath() + "shaders/texturearray/instancing.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getAssetPath() + "shaders/texturearray/instancing.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, &pipeline));
|
||||
}
|
||||
|
||||
void prepareUniformBuffers()
|
||||
{
|
||||
uboVS.instance = new UboInstanceData[layerCount];
|
||||
|
||||
uint32_t uboSize = sizeof(uboVS.matrices) + (layerCount * sizeof(UboInstanceData));
|
||||
|
||||
// Vertex shader uniform buffer block
|
||||
VK_CHECK_RESULT(vulkanDevice->createBuffer(
|
||||
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
||||
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
||||
&uniformBufferVS,
|
||||
uboSize));
|
||||
|
||||
// Array indices and model matrices are fixed
|
||||
float offset = -1.5f;
|
||||
float center = (layerCount*offset) / 2;
|
||||
for (int32_t i = 0; i < layerCount; i++)
|
||||
{
|
||||
// Instance model matrix
|
||||
uboVS.instance[i].model = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, i * offset - center, 0.0f));
|
||||
uboVS.instance[i].model = glm::rotate(uboVS.instance[i].model, glm::radians(60.0f), glm::vec3(1.0f, 0.0f, 0.0f));
|
||||
// Instance texture array index
|
||||
uboVS.instance[i].arrayIndex.x = i;
|
||||
}
|
||||
|
||||
// Update instanced part of the uniform buffer
|
||||
uint8_t *pData;
|
||||
uint32_t dataOffset = sizeof(uboVS.matrices);
|
||||
uint32_t dataSize = layerCount * sizeof(UboInstanceData);
|
||||
VK_CHECK_RESULT(vkMapMemory(device, uniformBufferVS.memory, dataOffset, dataSize, 0, (void **)&pData));
|
||||
memcpy(pData, uboVS.instance, dataSize);
|
||||
vkUnmapMemory(device, uniformBufferVS.memory);
|
||||
|
||||
// Map persistent
|
||||
VK_CHECK_RESULT(uniformBufferVS.map());
|
||||
|
||||
updateUniformBufferMatrices();
|
||||
}
|
||||
|
||||
void updateUniformBufferMatrices()
|
||||
{
|
||||
// Only updates the uniform buffer block part containing the global matrices
|
||||
|
||||
// Projection
|
||||
uboVS.matrices.projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.001f, 256.0f);
|
||||
|
||||
// View
|
||||
uboVS.matrices.view = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, -1.0f, zoom));
|
||||
uboVS.matrices.view = glm::rotate(uboVS.matrices.view, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
||||
uboVS.matrices.view = glm::rotate(uboVS.matrices.view, glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
||||
uboVS.matrices.view = glm::rotate(uboVS.matrices.view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
||||
|
||||
// Only update the matrices part of the uniform buffer
|
||||
memcpy(uniformBufferVS.mapped, &uboVS.matrices, sizeof(uboVS.matrices));
|
||||
}
|
||||
|
||||
void draw()
|
||||
{
|
||||
VulkanExampleBase::prepareFrame();
|
||||
|
||||
submitInfo.commandBufferCount = 1;
|
||||
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
|
||||
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
|
||||
|
||||
VulkanExampleBase::submitFrame();
|
||||
}
|
||||
|
||||
void prepare()
|
||||
{
|
||||
VulkanExampleBase::prepare();
|
||||
loadTextures();
|
||||
setupVertexDescriptions();
|
||||
generateQuad();
|
||||
prepareUniformBuffers();
|
||||
setupDescriptorSetLayout();
|
||||
preparePipelines();
|
||||
setupDescriptorPool();
|
||||
setupDescriptorSet();
|
||||
buildCommandBuffers();
|
||||
prepared = true;
|
||||
}
|
||||
|
||||
virtual void render()
|
||||
{
|
||||
if (!prepared)
|
||||
return;
|
||||
draw();
|
||||
}
|
||||
|
||||
virtual void viewChanged()
|
||||
{
|
||||
updateUniformBufferMatrices();
|
||||
}
|
||||
};
|
||||
|
||||
VULKAN_EXAMPLE_MAIN()
|
||||
Loading…
Add table
Add a link
Reference in a new issue