706 lines
21 KiB
C++
706 lines
21 KiB
C++
/*
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* Vulkan Example - Displacement mapping with tessellation shaders
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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 <vector>
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#define GLM_FORCE_RADIANS
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <gli/gli.hpp>
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#include <vulkan/vulkan.h>
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#include "vulkanexamplebase.h"
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#include "vulkanMeshLoader.hpp"
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#define VERTEX_BUFFER_BIND_ID 0
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//#define USE_GLSL
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#define ENABLE_VALIDATION false
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// Vertex layout for this example
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std::vector<vkMeshLoader::VertexLayout> vertexLayout =
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{
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vkMeshLoader::VERTEX_LAYOUT_POSITION,
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vkMeshLoader::VERTEX_LAYOUT_NORMAL,
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vkMeshLoader::VERTEX_LAYOUT_UV
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};
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class VulkanExample : public VulkanExampleBase
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{
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private:
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struct {
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vkTools::VulkanTexture colorMap;
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vkTools::VulkanTexture heightMap;
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} textures;
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public:
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bool splitScreen = true;
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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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struct {
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vkMeshLoader::MeshBuffer object;
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} meshes;
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vkTools::UniformData uniformDataTC, uniformDataTE;
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struct {
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float tessLevel = 8.0;
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} uboTC;
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struct {
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glm::mat4 projection;
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glm::mat4 model;
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glm::vec4 lightPos = glm::vec4(0.0, -25.0, 0.0, 0.0);
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float tessAlpha = 1.0;
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float tessStrength = 1.0;
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} uboTE;
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struct {
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VkPipeline solid;
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VkPipeline wire;
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VkPipeline solidPassThrough;
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VkPipeline wirePassThrough;
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} pipelines;
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VkPipeline *pipelineLeft = &pipelines.solidPassThrough;
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VkPipeline *pipelineRight = &pipelines.solid;
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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 = -35;
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rotation = glm::vec3(-35.0, 0.0, 0);
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title = "Vulkan Example - Tessellation shader displacement mapping";
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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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vkDestroyPipeline(device, pipelines.solid, nullptr);
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vkDestroyPipeline(device, pipelines.wire, nullptr);
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vkDestroyPipeline(device, pipelines.solidPassThrough, nullptr);
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vkDestroyPipeline(device, pipelines.wirePassThrough, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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vkMeshLoader::freeMeshBufferResources(device, &meshes.object);
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vkDestroyBuffer(device, uniformDataTC.buffer, nullptr);
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vkFreeMemory(device, uniformDataTC.memory, nullptr);
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vkDestroyBuffer(device, uniformDataTE.buffer, nullptr);
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vkFreeMemory(device, uniformDataTE.memory, nullptr);
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textureLoader->destroyTexture(textures.colorMap);
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textureLoader->destroyTexture(textures.heightMap);
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}
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void loadTextures()
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{
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textureLoader->loadTexture(
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"./../data/textures/stonewall_colormap_bc3.dds",
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VK_FORMAT_BC3_UNORM_BLOCK,
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&textures.colorMap);
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textureLoader->loadTexture(
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"./../data/textures/stonewall_heightmap_rgba.dds",
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VK_FORMAT_R8G8B8A8_UNORM,
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&textures.heightMap);
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}
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void reBuildCommandBuffers()
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{
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if (!checkCommandBuffers())
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{
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destroyCommandBuffers();
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createCommandBuffers();
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}
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buildCommandBuffers();
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}
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void buildCommandBuffers()
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{
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VkCommandBufferBeginInfo cmdBufInfo = vkTools::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 = vkTools::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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VkResult err;
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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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err = vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo);
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assert(!err);
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vkTools::initializers::viewport(
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splitScreen ? (float)width / 2.0f : (float)width,
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(float)height,
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0.0f,
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1.0f
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);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vkTools::initializers::rect2D(
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width,
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height,
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0,
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0
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);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdSetLineWidth(drawCmdBuffers[i], 1.0f);
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
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VkDeviceSize offsets[1] = { 0 };
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vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &meshes.object.vertices.buf, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], meshes.object.indices.buf, 0, VK_INDEX_TYPE_UINT32);
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if (splitScreen)
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{
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, *pipelineLeft);
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vkCmdDrawIndexed(drawCmdBuffers[i], meshes.object.indexCount, 1, 0, 0, 0);
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viewport.x = float(width) / 2;
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}
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, *pipelineRight);
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vkCmdDrawIndexed(drawCmdBuffers[i], meshes.object.indexCount, 1, 0, 0, 0);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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VkImageMemoryBarrier prePresentBarrier = vkTools::prePresentBarrier(swapChain.buffers[i].image);
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vkCmdPipelineBarrier(
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drawCmdBuffers[i],
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VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
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VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
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VK_FLAGS_NONE,
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0, nullptr,
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0, nullptr,
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1, &prePresentBarrier);
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err = vkEndCommandBuffer(drawCmdBuffers[i]);
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assert(!err);
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}
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}
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void draw()
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{
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VkResult err;
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VkSemaphore presentCompleteSemaphore;
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VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
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err = vkCreateSemaphore(device, &presentCompleteSemaphoreCreateInfo, nullptr, &presentCompleteSemaphore);
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assert(!err);
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err = swapChain.acquireNextImage(presentCompleteSemaphore, ¤tBuffer);
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assert(!err);
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VkSubmitInfo submitInfo = vkTools::initializers::submitInfo();
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submitInfo.waitSemaphoreCount = 1;
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submitInfo.pWaitSemaphores = &presentCompleteSemaphore;
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submitInfo.commandBufferCount = 1;
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submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
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err = vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE);
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assert(!err);
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err = swapChain.queuePresent(queue, currentBuffer);
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assert(!err);
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vkDestroySemaphore(device, presentCompleteSemaphore, nullptr);
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submitPostPresentBarrier(swapChain.buffers[currentBuffer].image);
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err = vkQueueWaitIdle(queue);
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assert(!err);
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}
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void loadMeshes()
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{
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loadMesh("./../data/models/torus.obj", &meshes.object, vertexLayout, 0.25f);
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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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vkTools::initializers::vertexInputBindingDescription(
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VERTEX_BUFFER_BIND_ID,
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vkMeshLoader::vertexSize(vertexLayout),
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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(3);
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// Location 0 : Position
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vertices.attributeDescriptions[0] =
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vkTools::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 : Normals
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vertices.attributeDescriptions[1] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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1,
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VK_FORMAT_R32G32B32_SFLOAT,
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sizeof(float) * 3);
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// Location 2 : Texture coordinates
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vertices.attributeDescriptions[2] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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2,
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VK_FORMAT_R32G32_SFLOAT,
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sizeof(float) * 6);
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vertices.inputState = vkTools::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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// Example uses two ubos and two image samplers
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std::vector<VkDescriptorPoolSize> poolSizes =
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{
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vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 2),
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vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 2)
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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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2);
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VkResult vkRes = vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool);
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assert(!vkRes);
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}
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void setupDescriptorSetLayout()
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{
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std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
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{
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// Binding 0 : Tessellation control shader ubo
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vkTools::initializers::descriptorSetLayoutBinding(
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT,
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0),
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// Binding 1 : Tessellation evaluation shader ubo
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vkTools::initializers::descriptorSetLayoutBinding(
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT,
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1),
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// Binding 2 : Tessellation evaluation shader displacement map image sampler
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vkTools::initializers::descriptorSetLayoutBinding(
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VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
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VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT,
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2),
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// Binding 3 : Fragment shader color map image sampler
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vkTools::initializers::descriptorSetLayoutBinding(
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VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
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VK_SHADER_STAGE_FRAGMENT_BIT,
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3),
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};
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VkDescriptorSetLayoutCreateInfo descriptorLayout =
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vkTools::initializers::descriptorSetLayoutCreateInfo(
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setLayoutBindings.data(),
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setLayoutBindings.size());
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VkResult err = vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout);
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assert(!err);
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VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
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vkTools::initializers::pipelineLayoutCreateInfo(
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&descriptorSetLayout,
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1);
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err = vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout);
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assert(!err);
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}
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void setupDescriptorSet()
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{
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VkDescriptorSetAllocateInfo allocInfo =
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vkTools::initializers::descriptorSetAllocateInfo(
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descriptorPool,
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&descriptorSetLayout,
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1);
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VkResult vkRes = vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet);
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assert(!vkRes);
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// Displacement map image descriptor
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VkDescriptorImageInfo texDescriptorDisplacementMap =
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vkTools::initializers::descriptorImageInfo(
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textures.heightMap.sampler,
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textures.heightMap.view,
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VK_IMAGE_LAYOUT_GENERAL);
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// Color map image descriptor
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VkDescriptorImageInfo texDescriptorColorMap =
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vkTools::initializers::descriptorImageInfo(
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textures.colorMap.sampler,
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textures.colorMap.view,
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VK_IMAGE_LAYOUT_GENERAL);
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std::vector<VkWriteDescriptorSet> writeDescriptorSets =
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{
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// Binding 0 : Tessellation control shader ubo
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vkTools::initializers::writeDescriptorSet(
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descriptorSet,
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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0,
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&uniformDataTC.descriptor),
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// Binding 1 : Tessellation evaluation shader ubo
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vkTools::initializers::writeDescriptorSet(
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descriptorSet,
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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1,
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&uniformDataTE.descriptor),
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// Binding 2 : Displacement map
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vkTools::initializers::writeDescriptorSet(
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descriptorSet,
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VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
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2,
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&texDescriptorDisplacementMap),
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// Binding 3 : Color map
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vkTools::initializers::writeDescriptorSet(
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descriptorSet,
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VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
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3,
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&texDescriptorColorMap),
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};
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vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
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}
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void preparePipelines()
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{
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VkResult err;
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
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vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
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VK_PRIMITIVE_TOPOLOGY_PATCH_LIST,
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0,
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VK_FALSE);
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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_NONE,
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VK_FRONT_FACE_COUNTER_CLOCKWISE,
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0);
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VkPipelineColorBlendAttachmentState blendAttachmentState =
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vkTools::initializers::pipelineColorBlendAttachmentState(
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0xf,
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VK_FALSE);
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VkPipelineColorBlendStateCreateInfo colorBlendState =
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vkTools::initializers::pipelineColorBlendStateCreateInfo(
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1,
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&blendAttachmentState);
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VkPipelineDepthStencilStateCreateInfo depthStencilState =
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vkTools::initializers::pipelineDepthStencilStateCreateInfo(
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VK_TRUE,
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VK_TRUE,
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VK_COMPARE_OP_LESS_OR_EQUAL);
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VkPipelineViewportStateCreateInfo viewportState =
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vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
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VkPipelineMultisampleStateCreateInfo multisampleState =
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vkTools::initializers::pipelineMultisampleStateCreateInfo(
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VK_SAMPLE_COUNT_1_BIT,
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0);
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std::vector<VkDynamicState> dynamicStateEnables = {
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VK_DYNAMIC_STATE_VIEWPORT,
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VK_DYNAMIC_STATE_SCISSOR,
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VK_DYNAMIC_STATE_LINE_WIDTH
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};
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VkPipelineDynamicStateCreateInfo dynamicState =
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vkTools::initializers::pipelineDynamicStateCreateInfo(
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dynamicStateEnables.data(),
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dynamicStateEnables.size(),
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0);
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VkPipelineTessellationStateCreateInfo tessellationState =
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vkTools::initializers::pipelineTessellationStateCreateInfo(3);
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// Tessellation pipeline
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// Load shaders
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std::array<VkPipelineShaderStageCreateInfo, 4> shaderStages;
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#ifdef USE_GLSL
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shaderStages[0] = loadShaderGLSL("./../data/shaders/displacement/base.vert", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShaderGLSL("./../data/shaders/displacement/base.frag", VK_SHADER_STAGE_FRAGMENT_BIT);
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shaderStages[2] = loadShaderGLSL("./../data/shaders/displacement/displacement.tesc", VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT);
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shaderStages[3] = loadShaderGLSL("./../data/shaders/displacement/displacement.tese", VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT);
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#else
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shaderStages[0] = loadShader("./../data/shaders/displacement/base.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShader("./../data/shaders/displacement/base.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
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shaderStages[2] = loadShader("./../data/shaders/displacement/displacement.tesc.spv", VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT);
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shaderStages[3] = loadShader("./../data/shaders/displacement/displacement.tese.spv", VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT);
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#endif
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VkGraphicsPipelineCreateInfo pipelineCreateInfo =
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vkTools::initializers::pipelineCreateInfo(
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pipelineLayout,
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renderPass,
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0);
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pipelineCreateInfo.pVertexInputState = &vertices.inputState;
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|
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
|
|
pipelineCreateInfo.pRasterizationState = &rasterizationState;
|
|
pipelineCreateInfo.pColorBlendState = &colorBlendState;
|
|
pipelineCreateInfo.pMultisampleState = &multisampleState;
|
|
pipelineCreateInfo.pViewportState = &viewportState;
|
|
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
|
|
pipelineCreateInfo.pDynamicState = &dynamicState;
|
|
pipelineCreateInfo.pTessellationState = &tessellationState;
|
|
pipelineCreateInfo.stageCount = shaderStages.size();
|
|
pipelineCreateInfo.pStages = shaderStages.data();
|
|
pipelineCreateInfo.renderPass = renderPass;
|
|
|
|
// Solid pipeline
|
|
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.solid);
|
|
assert(!err);
|
|
// Wireframe pipeline
|
|
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
|
|
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wire);
|
|
assert(!err);
|
|
|
|
// Pass through pipelines
|
|
// Load pass through tessellation shaders (Vert and frag are reused)
|
|
#ifdef USE_GLSL
|
|
shaderStages[2] = loadShaderGLSL("./../data/shaders/displacement/passthrough.tesc", VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT);
|
|
shaderStages[3] = loadShaderGLSL("./../data/shaders/displacement/passthrough.tese", VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT);
|
|
#else
|
|
shaderStages[2] = loadShader("./../data/shaders/displacement/passthrough.tesc.spv", VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT);
|
|
shaderStages[3] = loadShader("./../data/shaders/displacement/passthrough.tese.spv", VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT);
|
|
#endif
|
|
// Solid
|
|
rasterizationState.polygonMode = VK_POLYGON_MODE_FILL;
|
|
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.solidPassThrough);
|
|
assert(!err);
|
|
// Wireframe
|
|
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
|
|
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wirePassThrough);
|
|
assert(!err);
|
|
}
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
void prepareUniformBuffers()
|
|
{
|
|
// Tessellation evaluation shader uniform buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
sizeof(uboTE),
|
|
&uboTE,
|
|
&uniformDataTE.buffer,
|
|
&uniformDataTE.memory,
|
|
&uniformDataTE.descriptor);
|
|
|
|
// Tessellation control shader uniform buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
sizeof(uboTC),
|
|
&uboTC,
|
|
&uniformDataTC.buffer,
|
|
&uniformDataTC.memory,
|
|
&uniformDataTC.descriptor);
|
|
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void updateUniformBuffers()
|
|
{
|
|
// Tessellation eval
|
|
glm::mat4 viewMatrix = glm::mat4();
|
|
uboTE.projection = glm::perspective(deg_to_rad(45.0f), (float)(width* ((splitScreen) ? 0.5f : 1.0f)) / (float)height, 0.1f, 256.0f);
|
|
viewMatrix = glm::translate(viewMatrix, glm::vec3(0.0f, 0.0f, zoom));
|
|
|
|
float offset = 0.5f;
|
|
int uboIndex = 1;
|
|
uboTE.model = glm::mat4();
|
|
uboTE.model = viewMatrix * glm::translate(uboTE.model, glm::vec3(0, 0, 0));
|
|
uboTE.model = glm::rotate(uboTE.model, deg_to_rad(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
uboTE.model = glm::rotate(uboTE.model, deg_to_rad(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
uboTE.model = glm::rotate(uboTE.model, deg_to_rad(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
uint8_t *pData;
|
|
VkResult err = vkMapMemory(device, uniformDataTE.memory, 0, sizeof(uboTE), 0, (void **)&pData);
|
|
assert(!err);
|
|
memcpy(pData, &uboTE, sizeof(uboTE));
|
|
vkUnmapMemory(device, uniformDataTE.memory);
|
|
|
|
// Tessellation control
|
|
err = vkMapMemory(device, uniformDataTC.memory, 0, sizeof(uboTC), 0, (void **)&pData);
|
|
assert(!err);
|
|
memcpy(pData, &uboTC, sizeof(uboTC));
|
|
vkUnmapMemory(device, uniformDataTC.memory);
|
|
}
|
|
|
|
void prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
loadMeshes();
|
|
loadTextures();
|
|
setupVertexDescriptions();
|
|
prepareUniformBuffers();
|
|
setupDescriptorSetLayout();
|
|
preparePipelines();
|
|
setupDescriptorPool();
|
|
setupDescriptorSet();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
vkDeviceWaitIdle(device);
|
|
draw();
|
|
vkDeviceWaitIdle(device);
|
|
}
|
|
|
|
virtual void viewChanged()
|
|
{
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void changeTessellationLevel(float delta)
|
|
{
|
|
uboTC.tessLevel += delta;
|
|
// Clamp
|
|
uboTC.tessLevel = fmax(1.0, fmin(uboTC.tessLevel, 32.0));
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void togglePipelines()
|
|
{
|
|
if (pipelineRight == &pipelines.solid)
|
|
{
|
|
pipelineRight = &pipelines.wire;
|
|
pipelineLeft = &pipelines.wirePassThrough;
|
|
}
|
|
else
|
|
{
|
|
pipelineRight = &pipelines.solid;
|
|
pipelineLeft = &pipelines.solidPassThrough;
|
|
}
|
|
reBuildCommandBuffers();
|
|
}
|
|
|
|
void toggleSplitScreen()
|
|
{
|
|
splitScreen = !splitScreen;
|
|
reBuildCommandBuffers();
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
};
|
|
|
|
VulkanExample *vulkanExample;
|
|
|
|
#ifdef _WIN32
|
|
|
|
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
if (vulkanExample != NULL)
|
|
{
|
|
vulkanExample->handleMessages(hWnd, uMsg, wParam, lParam);
|
|
if (uMsg == WM_KEYDOWN)
|
|
{
|
|
switch (wParam)
|
|
{
|
|
case VK_ADD:
|
|
vulkanExample->changeTessellationLevel(0.25);
|
|
break;
|
|
case VK_SUBTRACT:
|
|
vulkanExample->changeTessellationLevel(-0.25);
|
|
break;
|
|
case 0x57:
|
|
vulkanExample->togglePipelines();
|
|
break;
|
|
case 0x53:
|
|
vulkanExample->toggleSplitScreen();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return (DefWindowProc(hWnd, uMsg, wParam, lParam));
|
|
}
|
|
|
|
#else
|
|
|
|
static void handleEvent(const xcb_generic_event_t *event)
|
|
{
|
|
if (vulkanExample != NULL)
|
|
{
|
|
vulkanExample->handleEvent(event);
|
|
// TODO : Keys for tessellation level changes
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine, int nCmdShow)
|
|
#else
|
|
int main(const int argc, const char *argv[])
|
|
#endif
|
|
{
|
|
vulkanExample = new VulkanExample();
|
|
#ifdef _WIN32
|
|
vulkanExample->setupWindow(hInstance, WndProc);
|
|
#else
|
|
vulkanExample->setupWindow();
|
|
#endif
|
|
vulkanExample->initSwapchain();
|
|
vulkanExample->prepare();
|
|
vulkanExample->renderLoop();
|
|
delete(vulkanExample);
|
|
return 0;
|
|
}
|