Scene uniform buffer for global matrices, keys, moved functionality from example to scene class
This commit is contained in:
saschawillems
parent
de8dc8d501
commit
5f2a7fc537
1 changed files with 115 additions and 124 deletions
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@ -34,16 +34,22 @@ struct Vertex {
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// Scene related structs
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// Shader properites for a material
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// Will be passed to the shaders using push constant
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struct SceneMaterialProperites
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{
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glm::vec4 ambient;
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glm::vec4 diffuse;
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glm::vec4 specular;
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float opacity;
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};
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// Stores info on the materials used in the scene
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struct SceneMaterial
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{
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std::string name;
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// Properties
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struct
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{
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glm::vec3 diffuse;
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glm::vec3 specular;
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} colors;
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// Material properties
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SceneMaterialProperites properties;
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// The example only uses a diffuse channel
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vkTools::VulkanTexture diffuse;
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// The material's descriptor contains the material descriptors
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@ -75,11 +81,7 @@ private:
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VkDevice device;
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VkQueue queue;
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// todo
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vkTools::UniformData *defaultUBO;
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VkDescriptorPool descriptorPool;
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// VkDescriptorSetLayout descriptorSetLayout;
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// We will be using separate descriptor sets (and bindings)
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// for material and scene related uniforms
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@ -125,14 +127,17 @@ private:
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aScene->mMaterials[i]->Get(AI_MATKEY_NAME, name);
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// Properties
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aiColor3D color;
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aiColor4D color;
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aScene->mMaterials[i]->Get(AI_MATKEY_COLOR_AMBIENT, color);
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materials[i].properties.ambient = glm::make_vec4(&color.r);
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aScene->mMaterials[i]->Get(AI_MATKEY_COLOR_DIFFUSE, color);
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materials[i].colors.diffuse = glm::make_vec3(&color.r);
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materials[i].properties.diffuse = glm::make_vec4(&color.r);
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aScene->mMaterials[i]->Get(AI_MATKEY_COLOR_SPECULAR, color);
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materials[i].colors.specular = glm::make_vec3(&color.r);
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materials[i].properties.specular = glm::make_vec4(&color.r);
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aScene->mMaterials[i]->Get(AI_MATKEY_OPACITY, materials[i].properties.opacity);
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// todo : alpha blended materials
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// illum 4 in mtl (e.g. window), not accessible via assimp?
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if ((materials[i].properties.opacity) > 0.0f)
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materials[i].properties.specular = glm::vec4(0.0f);
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materials[i].name = name.C_Str();
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std::cout << "Material \"" << materials[i].name << "\"" << std::endl;
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@ -157,6 +162,9 @@ private:
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// For scenes with multiple textures per material we would need to check for additional texture types, e.g.:
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// aiTextureType_HEIGHT, aiTextureType_OPACITY, aiTextureType_SPECULAR, etc.
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// Assign pipeline
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materials[i].pipeline = (materials[i].properties.opacity == 0.0f) ? &pipelines.solid : &pipelines.blending;
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}
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// Generate descriptor sets for the materials
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@ -201,7 +209,10 @@ private:
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VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo = vkTools::initializers::pipelineLayoutCreateInfo(setLayouts.data(), static_cast<uint32_t>(setLayouts.size()));
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// We will be using a push constant block to pass material properties to the fragment shaders
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VkPushConstantRange pushConstantRange = vkTools::initializers::pushConstantRange(VK_SHADER_STAGE_FRAGMENT_BIT, sizeof(glm::vec4) * 2, 0);
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VkPushConstantRange pushConstantRange = vkTools::initializers::pushConstantRange(
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VK_SHADER_STAGE_FRAGMENT_BIT,
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sizeof(SceneMaterialProperites),
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0);
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pipelineLayoutCreateInfo.pushConstantRangeCount = 1;
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pipelineLayoutCreateInfo.pPushConstantRanges = &pushConstantRange;
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@ -253,7 +264,7 @@ private:
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descriptorSetScene,
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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0,
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&defaultUBO->descriptor));
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&uniformBuffer.descriptor));
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vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
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}
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@ -419,20 +430,51 @@ public:
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std::vector<SceneMaterial> materials;
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std::vector<SceneMesh> meshes;
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// Same for all meshes in the scene
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// Shared ubo containing matrices used by all
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// materials and meshes
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vkTools::UniformData uniformBuffer;
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struct {
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glm::mat4 projection;
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glm::mat4 view;
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glm::mat4 model;
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glm::vec4 lightPos = glm::vec4(8.15f, -1.8f, -0.0f, 0.0f);
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} uniformData;
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// Scene uses multiple pipelines
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struct {
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VkPipeline solid;
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VkPipeline blending;
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VkPipeline wireframe;
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} pipelines;
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// Shared pipeline layout
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VkPipelineLayout pipelineLayout;
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// For displaying only a single part of the scene
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bool renderSingleScenePart = false;
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uint32_t scenePartIndex = 0;
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Scene(VkDevice device, VkQueue queue, VkPhysicalDeviceMemoryProperties memprops, vkTools::VulkanTextureLoader *textureloader, vkTools::UniformData *defaultUBO)
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Scene(VkDevice device, VkQueue queue, VkPhysicalDeviceMemoryProperties memprops, vkTools::VulkanTextureLoader *textureloader)
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{
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this->device = device;
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this->queue = queue;
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this->deviceMemProps = memprops;
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this->textureLoader = textureloader;
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this->defaultUBO = defaultUBO;
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// Prepare uniform buffer for global matrices
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VkMemoryRequirements memReqs;
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VkMemoryAllocateInfo memAlloc = vkTools::initializers::memoryAllocateInfo();
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VkBufferCreateInfo bufferCreateInfo = vkTools::initializers::bufferCreateInfo(VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, sizeof(uniformData));
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VK_CHECK_RESULT(vkCreateBuffer(device, &bufferCreateInfo, nullptr, &uniformBuffer.buffer));
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vkGetBufferMemoryRequirements(device, uniformBuffer.buffer, &memReqs);
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memAlloc.allocationSize = memReqs.size;
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memAlloc.memoryTypeIndex = getMemoryTypeIndex(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &uniformBuffer.memory));
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VK_CHECK_RESULT(vkBindBufferMemory(device, uniformBuffer.buffer, uniformBuffer.memory, 0));
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VK_CHECK_RESULT(vkMapMemory(device, uniformBuffer.memory, 0, sizeof(uniformData), 0, (void **)&uniformBuffer.mapped));
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uniformBuffer.descriptor.offset = 0;
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uniformBuffer.descriptor.buffer = uniformBuffer.buffer;
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uniformBuffer.descriptor.range = sizeof(uniformData);
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}
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~Scene()
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@ -452,13 +494,17 @@ public:
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vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.material, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.scene, nullptr);
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vkDestroyDescriptorPool(device, descriptorPool, nullptr);
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vkDestroyPipeline(device, pipelines.solid, nullptr);
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vkDestroyPipeline(device, pipelines.blending, nullptr);
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vkDestroyPipeline(device, pipelines.wireframe, nullptr);
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vkTools::destroyUniformData(device, &uniformBuffer);
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}
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void load(std::string filename, VkCommandBuffer copyCmd)
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{
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Assimp::Importer Importer;
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int flags = aiProcess_PreTransformVertices | aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_FixInfacingNormals;
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int flags = aiProcess_PreTransformVertices | aiProcess_Triangulate | aiProcess_GenNormals;
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#if defined(__ANDROID__)
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AAsset* asset = AAssetManager_open(assetManager, filename.c_str(), AASSET_MODE_STREAMING);
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@ -490,13 +536,17 @@ public:
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// Renders the scene into an active command buffer
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// In a real world application we would do some visibility culling in here
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void render(VkCommandBuffer cmdBuffer)
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void render(VkCommandBuffer cmdBuffer, bool wireframe)
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{
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VkDeviceSize offsets[1] = { 0 };
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for (size_t i = 0; i < meshes.size(); i++)
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{
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if ((renderSingleScenePart) && (i != scenePartIndex))
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continue;
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//if (meshes[i].material->opacity == 0.0f)
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// continue;
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// todo : per material pipelines
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// vkCmdBindPipeline(cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *mesh.material->pipeline);
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@ -511,30 +561,25 @@ public:
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// Set 1: Per-Material descriptor set containing bound images
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descriptorSets[1] = meshes[i].material->descriptorSet;
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vkCmdBindPipeline(cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, wireframe ? pipelines.wireframe : *meshes[i].material->pipeline);
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vkCmdBindDescriptorSets(cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, static_cast<uint32_t>(descriptorSets.size()), descriptorSets.data(), 0, NULL);
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// Pass material properies via push constants
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struct
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{
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glm::vec4 diffuse;
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glm::vec4 specular;
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} materialProps;
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materialProps.diffuse = glm::vec4(meshes[i].material->colors.diffuse, 1.0f);
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materialProps.specular = glm::vec4(meshes[i].material->colors.specular, 1.0f);
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vkCmdPushConstants(
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cmdBuffer,
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pipelineLayout,
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VK_SHADER_STAGE_FRAGMENT_BIT,
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0,
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sizeof(materialProps),
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&materialProps);
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sizeof(SceneMaterialProperites),
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&meshes[i].material->properties);
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vkCmdBindVertexBuffers(cmdBuffer, 0, 1, &meshes[i].vertexBuffer, offsets);
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vkCmdBindIndexBuffer(cmdBuffer, meshes[i].indexBuffer, 0, VK_INDEX_TYPE_UINT32);
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vkCmdDrawIndexed(cmdBuffer, meshes[i].indexCount, 1, 0, 0, 0);
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}
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// Render transparent objects last
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}
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};
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@ -552,22 +597,6 @@ public:
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std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
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} vertices;
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struct {
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vkTools::UniformData vsScene;
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} uniformData;
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struct {
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glm::mat4 projection;
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glm::mat4 view;
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glm::mat4 model;
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glm::vec4 lightPos = glm::vec4(8.15f, -1.8f, -0.0f, 0.0f);
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} uboVS;
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struct {
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VkPipeline solid;
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VkPipeline wireframe;
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} pipelines;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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rotationSpeed = 0.5f;
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@ -582,12 +611,6 @@ public:
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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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vkDestroyPipeline(device, pipelines.solid, nullptr);
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vkTools::destroyUniformData(device, &uniformData.vsScene);
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delete(scene);
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}
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@ -633,9 +656,7 @@ public:
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VkRect2D scissor = vkTools::initializers::rect2D(width, height, 0, 0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, wireframe ? pipelines.wireframe : pipelines.solid);
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scene->render(drawCmdBuffers[i]);
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scene->render(drawCmdBuffers[i], wireframe);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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@ -692,24 +713,6 @@ public:
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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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// Example uses one ubo and one combined image sampler
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std::vector<VkDescriptorPoolSize> poolSizes =
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{
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vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
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vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1),
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};
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VkDescriptorPoolCreateInfo descriptorPoolInfo =
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vkTools::initializers::descriptorPoolCreateInfo(
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poolSizes.size(),
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poolSizes.data(),
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1);
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VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
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}
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void preparePipelines()
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{
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
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@ -721,7 +724,7 @@ public:
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VkPipelineRasterizationStateCreateInfo rasterizationState =
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vkTools::initializers::pipelineRasterizationStateCreateInfo(
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VK_POLYGON_MODE_FILL,
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VK_CULL_MODE_BACK_BIT,
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VK_CULL_MODE_NONE,
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VK_FRONT_FACE_COUNTER_CLOCKWISE,
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0);
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@ -759,10 +762,9 @@ public:
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dynamicStateEnables.size(),
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0);
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// Solid rendering pipeline
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// Load shaders
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std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
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// Solid rendering pipeline
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shaderStages[0] = loadShader(getAssetPath() + "shaders/scenerendering/scene.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShader(getAssetPath() + "shaders/scenerendering/scene.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
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@ -783,46 +785,37 @@ public:
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pipelineCreateInfo.stageCount = shaderStages.size();
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pipelineCreateInfo.pStages = shaderStages.data();
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.solid));
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &scene->pipelines.solid));
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// Alpha blended pipeline
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rasterizationState.cullMode = VK_CULL_MODE_NONE;
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blendAttachmentState.blendEnable = VK_TRUE;
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blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
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blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_COLOR;
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blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR;
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &scene->pipelines.blending));
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// Wire frame rendering pipeline
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rasterizationState.cullMode = VK_CULL_MODE_BACK_BIT;
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blendAttachmentState.blendEnable = VK_FALSE;
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rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
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rasterizationState.lineWidth = 1.0f;
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe));
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}
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// Prepare and initialize uniform buffer containing shader uniforms
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void prepareUniformBuffers()
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{
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// Vertex shader uniform buffer block
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createBuffer(
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VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
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VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
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sizeof(uboVS),
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nullptr,
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&uniformData.vsScene.buffer,
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&uniformData.vsScene.memory,
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&uniformData.vsScene.descriptor);
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updateUniformBuffers();
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &scene->pipelines.wireframe));
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}
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void updateUniformBuffers()
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{
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if (attachLight)
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{
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uboVS.lightPos = glm::vec4(-camera.position, 1.0f);
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scene->uniformData.lightPos = glm::vec4(-camera.position, 1.0f);
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}
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uboVS.projection = camera.matrices.perspective;
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uboVS.view = camera.matrices.view;
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uboVS.model = glm::mat4();
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scene->uniformData.projection = camera.matrices.perspective;
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scene->uniformData.view = camera.matrices.view;
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scene->uniformData.model = glm::mat4();
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uint8_t *pData;
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VK_CHECK_RESULT(vkMapMemory(device, uniformData.vsScene.memory, 0, sizeof(uboVS), 0, (void **)&pData));
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memcpy(pData, &uboVS, sizeof(uboVS));
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vkUnmapMemory(device, uniformData.vsScene.memory);
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memcpy(scene->uniformBuffer.mapped, &scene->uniformData, sizeof(scene->uniformData));
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}
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void draw()
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@ -842,7 +835,7 @@ public:
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void loadScene()
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{
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VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
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scene = new Scene(device, queue, deviceMemoryProperties, textureLoader, &uniformData.vsScene);
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scene = new Scene(device, queue, deviceMemoryProperties, textureLoader);
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#if defined(__ANDROID__)
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scene->assetManager = androidApp->activity->assetManager;
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@ -850,16 +843,15 @@ public:
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scene->assetPath = getAssetPath() + "models/sibenik/";
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scene->load(getAssetPath() + "models/sibenik/sibenik.dae", copyCmd);
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vkFreeCommandBuffers(device, cmdPool, 1, ©Cmd);
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updateUniformBuffers();
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}
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void prepare()
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{
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VulkanExampleBase::prepare();
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setupVertexDescriptions();
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prepareUniformBuffers();
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loadScene();
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preparePipelines();
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setupDescriptorPool();
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buildCommandBuffers();
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prepared = true;
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}
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@ -885,20 +877,19 @@ public:
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wireframe = !wireframe;
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reBuildCommandBuffers();
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break;
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case 0x50:
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scene->renderSingleScenePart = !scene->renderSingleScenePart;
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reBuildCommandBuffers();
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updateTextOverlay();
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break;
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case 0x6B:
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if (scene->renderSingleScenePart)
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{
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scene->scenePartIndex++;
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if (scene->scenePartIndex >= scene->meshes.size())
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{
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scene->scenePartIndex = 0;
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scene->renderSingleScenePart = false;
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}
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}
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else
|
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{
|
||||
scene->renderSingleScenePart = true;
|
||||
}
|
||||
scene->scenePartIndex = (scene->scenePartIndex < static_cast<uint32_t>(scene->meshes.size())) ? scene->scenePartIndex + 1 : 0;
|
||||
reBuildCommandBuffers();
|
||||
updateTextOverlay();
|
||||
break;
|
||||
case 0x6D:
|
||||
scene->scenePartIndex = (scene->scenePartIndex > 0) ? scene->scenePartIndex - 1 : static_cast<uint32_t>(scene->meshes.size()) - 1;
|
||||
updateTextOverlay();
|
||||
reBuildCommandBuffers();
|
||||
break;
|
||||
case 0x4C:
|
||||
|
|
@ -917,11 +908,11 @@ public:
|
|||
#endif
|
||||
if ((scene) && (scene->renderSingleScenePart))
|
||||
{
|
||||
textOverlay->addText("Rendering mesh " + std::to_string(scene->scenePartIndex) + " of " + std::to_string(static_cast<uint32_t>(scene->meshes.size())), 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
||||
textOverlay->addText("Rendering mesh " + std::to_string(scene->scenePartIndex + 1) + " of " + std::to_string(static_cast<uint32_t>(scene->meshes.size())) + "(\"p\" to toggle)", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
||||
}
|
||||
else
|
||||
{
|
||||
textOverlay->addText("Rendering whole scene", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
||||
textOverlay->addText("Rendering whole scene (\"p\" to toggle)", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue