637 lines
No EOL
19 KiB
C++
637 lines
No EOL
19 KiB
C++
/*
|
|
* Vulkan Example - Mesh rendering and loading using ASSIMP
|
|
*
|
|
* 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>
|
|
|
|
#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"
|
|
|
|
#define VERTEX_BUFFER_BIND_ID 0
|
|
#define ENABLE_VALIDATION false
|
|
|
|
// Vertex layout used in this example
|
|
struct Vertex {
|
|
glm::vec3 pos;
|
|
glm::vec3 normal;
|
|
glm::vec2 uv;
|
|
glm::vec3 color;
|
|
};
|
|
|
|
class VulkanExample : public VulkanExampleBase
|
|
{
|
|
public:
|
|
bool wireframe = false;
|
|
|
|
struct {
|
|
vkTools::VulkanTexture colorMap;
|
|
} textures;
|
|
|
|
struct {
|
|
VkPipelineVertexInputStateCreateInfo inputState;
|
|
std::vector<VkVertexInputBindingDescription> bindingDescriptions;
|
|
std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
|
|
} vertices;
|
|
|
|
// Contains all buffers and information
|
|
// necessary to represent a mesh for rendering purposes
|
|
// This is for demonstration and learning purposes,
|
|
// the other examples use a mesh loader class for easy access
|
|
struct Mesh {
|
|
struct {
|
|
VkBuffer buf;
|
|
VkDeviceMemory mem;
|
|
} vertices;
|
|
struct {
|
|
int count;
|
|
VkBuffer buf;
|
|
VkDeviceMemory mem;
|
|
} indices;
|
|
} mesh;
|
|
|
|
struct {
|
|
vk::Buffer scene;
|
|
} uniformBuffers;
|
|
|
|
struct {
|
|
glm::mat4 projection;
|
|
glm::mat4 model;
|
|
glm::vec4 lightPos = glm::vec4(25.0f, 5.0f, 5.0f, 1.0f);
|
|
} uboVS;
|
|
|
|
struct {
|
|
VkPipeline solid;
|
|
VkPipeline wireframe;
|
|
} pipelines;
|
|
|
|
VkPipelineLayout pipelineLayout;
|
|
VkDescriptorSet descriptorSet;
|
|
VkDescriptorSetLayout descriptorSetLayout;
|
|
|
|
VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
|
|
{
|
|
zoom = -5.5f;
|
|
zoomSpeed = 2.5f;
|
|
rotationSpeed = 0.5f;
|
|
rotation = { -0.5f, -112.75f, 0.0f };
|
|
cameraPos = { 0.1f, 1.1f, 0.0f };
|
|
enableTextOverlay = true;
|
|
title = "Vulkan Example - Mesh rendering";
|
|
// Enable physical device features required for this example
|
|
// Tell the driver that we are going to use geometry shaders
|
|
enabledFeatures.tessellationShader = VK_TRUE;
|
|
// Example also uses a wireframe pipeline, enable non-solid fill modes
|
|
enabledFeatures.fillModeNonSolid = VK_TRUE;
|
|
}
|
|
|
|
~VulkanExample()
|
|
{
|
|
// Clean up used Vulkan resources
|
|
// Note : Inherited destructor cleans up resources stored in base class
|
|
vkDestroyPipeline(device, pipelines.solid, nullptr);
|
|
vkDestroyPipeline(device, pipelines.wireframe, nullptr);
|
|
|
|
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
|
|
vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
|
|
|
|
// Destroy and free mesh resources
|
|
vkDestroyBuffer(device, mesh.vertices.buf, nullptr);
|
|
vkFreeMemory(device, mesh.vertices.mem, nullptr);
|
|
vkDestroyBuffer(device, mesh.indices.buf, nullptr);
|
|
vkFreeMemory(device, mesh.indices.mem, nullptr);
|
|
|
|
textureLoader->destroyTexture(textures.colorMap);
|
|
|
|
uniformBuffers.scene.destroy();
|
|
}
|
|
|
|
void reBuildCommandBuffers()
|
|
{
|
|
if (!checkCommandBuffers())
|
|
{
|
|
destroyCommandBuffers();
|
|
createCommandBuffers();
|
|
}
|
|
buildCommandBuffers();
|
|
}
|
|
|
|
void buildCommandBuffers()
|
|
{
|
|
VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
|
|
|
|
VkClearValue clearValues[2];
|
|
clearValues[0].color = defaultClearColor;
|
|
clearValues[1].depthStencil = { 1.0f, 0 };
|
|
|
|
VkRenderPassBeginInfo renderPassBeginInfo = vkTools::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;
|
|
|
|
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
|
|
{
|
|
// Set target frame buffer
|
|
renderPassBeginInfo.framebuffer = frameBuffers[i];
|
|
|
|
VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
|
|
|
|
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
|
|
|
VkViewport viewport = vkTools::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
|
|
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
|
|
|
|
VkRect2D scissor = vkTools::initializers::rect2D(width, height, 0, 0);
|
|
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
|
|
|
|
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
|
|
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, wireframe ? pipelines.wireframe : pipelines.solid);
|
|
|
|
VkDeviceSize offsets[1] = { 0 };
|
|
// Bind mesh vertex buffer
|
|
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &mesh.vertices.buf, offsets);
|
|
// Bind mesh index buffer
|
|
vkCmdBindIndexBuffer(drawCmdBuffers[i], mesh.indices.buf, 0, VK_INDEX_TYPE_UINT32);
|
|
// Render mesh vertex buffer using it's indices
|
|
vkCmdDrawIndexed(drawCmdBuffers[i], mesh.indices.count, 1, 0, 0, 0);
|
|
|
|
vkCmdEndRenderPass(drawCmdBuffers[i]);
|
|
|
|
VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
|
|
}
|
|
}
|
|
|
|
// Load a mesh based on data read via assimp
|
|
// The other example will use the VulkanMesh loader which has some additional functionality for loading meshes
|
|
void loadMesh()
|
|
{
|
|
VulkanMeshLoader *meshLoader = new VulkanMeshLoader(vulkanDevice);
|
|
#if defined(__ANDROID__)
|
|
meshLoader->assetManager = androidApp->activity->assetManager;
|
|
#endif
|
|
meshLoader->LoadMesh(getAssetPath() + "models/voyager/voyager.dae");
|
|
|
|
// Generate vertex buffer
|
|
float scale = 1.0f;
|
|
std::vector<Vertex> vertexBuffer;
|
|
// Iterate through all meshes in the file
|
|
// and extract the vertex information used in this demo
|
|
for (uint32_t m = 0; m < meshLoader->m_Entries.size(); m++)
|
|
{
|
|
for (uint32_t i = 0; i < meshLoader->m_Entries[m].Vertices.size(); i++)
|
|
{
|
|
Vertex vertex;
|
|
|
|
vertex.pos = meshLoader->m_Entries[m].Vertices[i].m_pos * scale;
|
|
vertex.normal = meshLoader->m_Entries[m].Vertices[i].m_normal;
|
|
vertex.uv = meshLoader->m_Entries[m].Vertices[i].m_tex;
|
|
vertex.color = meshLoader->m_Entries[m].Vertices[i].m_color;
|
|
|
|
vertexBuffer.push_back(vertex);
|
|
}
|
|
}
|
|
uint32_t vertexBufferSize = vertexBuffer.size() * sizeof(Vertex);
|
|
|
|
// Generate index buffer from loaded mesh file
|
|
std::vector<uint32_t> indexBuffer;
|
|
for (uint32_t m = 0; m < meshLoader->m_Entries.size(); m++)
|
|
{
|
|
uint32_t indexBase = indexBuffer.size();
|
|
for (uint32_t i = 0; i < meshLoader->m_Entries[m].Indices.size(); i++)
|
|
{
|
|
indexBuffer.push_back(meshLoader->m_Entries[m].Indices[i] + indexBase);
|
|
}
|
|
}
|
|
uint32_t indexBufferSize = indexBuffer.size() * sizeof(uint32_t);
|
|
mesh.indices.count = indexBuffer.size();
|
|
|
|
// Static mesh should always be device local
|
|
|
|
bool useStaging = true;
|
|
|
|
if (useStaging)
|
|
{
|
|
struct {
|
|
VkBuffer buffer;
|
|
VkDeviceMemory memory;
|
|
} vertexStaging, indexStaging;
|
|
|
|
// Create staging buffers
|
|
// Vertex data
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
vertexBufferSize,
|
|
vertexBuffer.data(),
|
|
&vertexStaging.buffer,
|
|
&vertexStaging.memory);
|
|
// Index data
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
indexBufferSize,
|
|
indexBuffer.data(),
|
|
&indexStaging.buffer,
|
|
&indexStaging.memory);
|
|
|
|
// Create device local buffers
|
|
// Vertex buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
vertexBufferSize,
|
|
nullptr,
|
|
&mesh.vertices.buf,
|
|
&mesh.vertices.mem);
|
|
// Index buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
indexBufferSize,
|
|
nullptr,
|
|
&mesh.indices.buf,
|
|
&mesh.indices.mem);
|
|
|
|
// Copy from staging buffers
|
|
VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
|
|
|
VkBufferCopy copyRegion = {};
|
|
|
|
copyRegion.size = vertexBufferSize;
|
|
vkCmdCopyBuffer(
|
|
copyCmd,
|
|
vertexStaging.buffer,
|
|
mesh.vertices.buf,
|
|
1,
|
|
©Region);
|
|
|
|
copyRegion.size = indexBufferSize;
|
|
vkCmdCopyBuffer(
|
|
copyCmd,
|
|
indexStaging.buffer,
|
|
mesh.indices.buf,
|
|
1,
|
|
©Region);
|
|
|
|
VulkanExampleBase::flushCommandBuffer(copyCmd, queue, true);
|
|
|
|
vkDestroyBuffer(device, vertexStaging.buffer, nullptr);
|
|
vkFreeMemory(device, vertexStaging.memory, nullptr);
|
|
vkDestroyBuffer(device, indexStaging.buffer, nullptr);
|
|
vkFreeMemory(device, indexStaging.memory, nullptr);
|
|
}
|
|
else
|
|
{
|
|
// Vertex buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
vertexBufferSize,
|
|
vertexBuffer.data(),
|
|
&mesh.vertices.buf,
|
|
&mesh.vertices.mem);
|
|
// Index buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
indexBufferSize,
|
|
indexBuffer.data(),
|
|
&mesh.indices.buf,
|
|
&mesh.indices.mem);
|
|
}
|
|
|
|
delete(meshLoader);
|
|
}
|
|
|
|
void loadTextures()
|
|
{
|
|
textureLoader->loadTexture(
|
|
getAssetPath() + "models/voyager/voyager.ktx",
|
|
VK_FORMAT_BC3_UNORM_BLOCK,
|
|
&textures.colorMap);
|
|
}
|
|
|
|
void setupVertexDescriptions()
|
|
{
|
|
// Binding description
|
|
vertices.bindingDescriptions.resize(1);
|
|
vertices.bindingDescriptions[0] =
|
|
vkTools::initializers::vertexInputBindingDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
sizeof(Vertex),
|
|
VK_VERTEX_INPUT_RATE_VERTEX);
|
|
|
|
// Attribute descriptions
|
|
// Describes memory layout and shader positions
|
|
vertices.attributeDescriptions.resize(4);
|
|
// Location 0 : Position
|
|
vertices.attributeDescriptions[0] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
0,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
0);
|
|
// Location 1 : Normal
|
|
vertices.attributeDescriptions[1] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
1,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
sizeof(float) * 3);
|
|
// Location 2 : Texture coordinates
|
|
vertices.attributeDescriptions[2] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
2,
|
|
VK_FORMAT_R32G32_SFLOAT,
|
|
sizeof(float) * 6);
|
|
// Location 3 : Color
|
|
vertices.attributeDescriptions[3] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
3,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
sizeof(float) * 8);
|
|
|
|
vertices.inputState = vkTools::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 setupDescriptorPool()
|
|
{
|
|
// Example uses one ubo and one combined image sampler
|
|
std::vector<VkDescriptorPoolSize> poolSizes =
|
|
{
|
|
vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
|
|
vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1),
|
|
};
|
|
|
|
VkDescriptorPoolCreateInfo descriptorPoolInfo =
|
|
vkTools::initializers::descriptorPoolCreateInfo(
|
|
poolSizes.size(),
|
|
poolSizes.data(),
|
|
1);
|
|
|
|
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
|
|
}
|
|
|
|
void setupDescriptorSetLayout()
|
|
{
|
|
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
|
|
{
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkTools::initializers::descriptorSetLayoutBinding(
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
0),
|
|
// Binding 1 : Fragment shader combined sampler
|
|
vkTools::initializers::descriptorSetLayoutBinding(
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
VK_SHADER_STAGE_FRAGMENT_BIT,
|
|
1),
|
|
};
|
|
|
|
VkDescriptorSetLayoutCreateInfo descriptorLayout =
|
|
vkTools::initializers::descriptorSetLayoutCreateInfo(
|
|
setLayoutBindings.data(),
|
|
setLayoutBindings.size());
|
|
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
|
|
|
|
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
|
|
vkTools::initializers::pipelineLayoutCreateInfo(
|
|
&descriptorSetLayout,
|
|
1);
|
|
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
|
|
}
|
|
|
|
void setupDescriptorSet()
|
|
{
|
|
VkDescriptorSetAllocateInfo allocInfo =
|
|
vkTools::initializers::descriptorSetAllocateInfo(
|
|
descriptorPool,
|
|
&descriptorSetLayout,
|
|
1);
|
|
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
|
|
|
|
VkDescriptorImageInfo texDescriptor =
|
|
vkTools::initializers::descriptorImageInfo(
|
|
textures.colorMap.sampler,
|
|
textures.colorMap.view,
|
|
VK_IMAGE_LAYOUT_GENERAL);
|
|
|
|
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
|
|
{
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSet,
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
0,
|
|
&uniformBuffers.scene.descriptor),
|
|
// Binding 1 : Color map
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSet,
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
1,
|
|
&texDescriptor)
|
|
};
|
|
|
|
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
|
}
|
|
|
|
void preparePipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
|
|
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
|
|
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
|
|
0,
|
|
VK_FALSE);
|
|
|
|
VkPipelineRasterizationStateCreateInfo rasterizationState =
|
|
vkTools::initializers::pipelineRasterizationStateCreateInfo(
|
|
VK_POLYGON_MODE_FILL,
|
|
VK_CULL_MODE_BACK_BIT,
|
|
VK_FRONT_FACE_CLOCKWISE,
|
|
0);
|
|
|
|
VkPipelineColorBlendAttachmentState blendAttachmentState =
|
|
vkTools::initializers::pipelineColorBlendAttachmentState(
|
|
0xf,
|
|
VK_FALSE);
|
|
|
|
VkPipelineColorBlendStateCreateInfo colorBlendState =
|
|
vkTools::initializers::pipelineColorBlendStateCreateInfo(
|
|
1,
|
|
&blendAttachmentState);
|
|
|
|
VkPipelineDepthStencilStateCreateInfo depthStencilState =
|
|
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
|
|
VK_TRUE,
|
|
VK_TRUE,
|
|
VK_COMPARE_OP_LESS_OR_EQUAL);
|
|
|
|
VkPipelineViewportStateCreateInfo viewportState =
|
|
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
|
|
|
VkPipelineMultisampleStateCreateInfo multisampleState =
|
|
vkTools::initializers::pipelineMultisampleStateCreateInfo(
|
|
VK_SAMPLE_COUNT_1_BIT,
|
|
0);
|
|
|
|
std::vector<VkDynamicState> dynamicStateEnables = {
|
|
VK_DYNAMIC_STATE_VIEWPORT,
|
|
VK_DYNAMIC_STATE_SCISSOR
|
|
};
|
|
VkPipelineDynamicStateCreateInfo dynamicState =
|
|
vkTools::initializers::pipelineDynamicStateCreateInfo(
|
|
dynamicStateEnables.data(),
|
|
dynamicStateEnables.size(),
|
|
0);
|
|
|
|
// Solid rendering pipeline
|
|
// Load shaders
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
|
|
|
shaderStages[0] = loadShader(getAssetPath() + "shaders/mesh/mesh.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getAssetPath() + "shaders/mesh/mesh.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
|
|
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
|
|
vkTools::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.solid));
|
|
|
|
// Wire frame rendering pipeline
|
|
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
|
|
rasterizationState.lineWidth = 1.0f;
|
|
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe));
|
|
}
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
void prepareUniformBuffers()
|
|
{
|
|
// 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,
|
|
&uniformBuffers.scene,
|
|
sizeof(uboVS)));
|
|
|
|
// Map persistent
|
|
VK_CHECK_RESULT(uniformBuffers.scene.map());
|
|
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void updateUniformBuffers()
|
|
{
|
|
uboVS.projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.1f, 256.0f);
|
|
glm::mat4 viewMatrix = glm::translate(glm::mat4(), glm::vec3(0.0f, 0.0f, zoom));
|
|
|
|
uboVS.model = viewMatrix * glm::translate(glm::mat4(), cameraPos);
|
|
uboVS.model = glm::rotate(uboVS.model, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
uboVS.model = glm::rotate(uboVS.model, glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
uboVS.model = glm::rotate(uboVS.model, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
memcpy(uniformBuffers.scene.mapped, &uboVS, sizeof(uboVS));
|
|
}
|
|
|
|
void draw()
|
|
{
|
|
VulkanExampleBase::prepareFrame();
|
|
|
|
// Command buffer to be sumitted to the queue
|
|
submitInfo.commandBufferCount = 1;
|
|
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
|
|
|
|
// Submit to queue
|
|
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
|
|
|
|
VulkanExampleBase::submitFrame();
|
|
}
|
|
|
|
void prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
loadTextures();
|
|
loadMesh();
|
|
setupVertexDescriptions();
|
|
prepareUniformBuffers();
|
|
setupDescriptorSetLayout();
|
|
preparePipelines();
|
|
setupDescriptorPool();
|
|
setupDescriptorSet();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
draw();
|
|
}
|
|
|
|
virtual void viewChanged()
|
|
{
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
virtual void keyPressed(uint32_t keyCode)
|
|
{
|
|
switch (keyCode)
|
|
{
|
|
case KEY_W:
|
|
case GAMEPAD_BUTTON_A:
|
|
wireframe = !wireframe;
|
|
reBuildCommandBuffers();
|
|
break;
|
|
}
|
|
}
|
|
|
|
virtual void getOverlayText(VulkanTextOverlay *textOverlay)
|
|
{
|
|
#if defined(__ANDROID__)
|
|
textOverlay->addText("Press \"Button A\" to toggle wireframe", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
|
#else
|
|
textOverlay->addText("Press \"w\" to toggle wireframe", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
|
#endif
|
|
}
|
|
};
|
|
|
|
VULKAN_EXAMPLE_MAIN() |