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Updated deferred shadows example to use new framebuffer class

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This commit is contained in:
saschawillems 2016-07-16 23:27:39 +02:00
parent 47bd9d62e2
commit f3a86c292c
12 changed files with 156 additions and 458 deletions
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2
base/vulkanMeshLoader.hpp
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@ -539,8 +539,6 @@ public:
meshBuffer->indexCount = (uint32_t)indexBuffer.size();
void* data;
// Use staging buffer to move vertex and index buffer to device local memory
if (useStaging && copyQueue != VK_NULL_HANDLE && copyCmd != VK_NULL_HANDLE)
{

2
data/shaders/deferredshadows/debug.frag
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@ -33,7 +33,7 @@ void main()
highp int index = int(inUV.z);
if (index == 2)
{
float depth = texture(samplerDepth, vec3(inUV.st, 0.0)).r;
float depth = texture(samplerDepth, vec3(inUV.st, 2.0)).r;
outFragColor = vec4(vec3(1.0-LinearizeDepth(depth)), 1.0);
}
else

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data/shaders/deferredshadows/debug.frag.spv
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2
data/shaders/deferredshadows/deferred.frag
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@ -16,7 +16,7 @@ layout (location = 0) out vec4 outFragColor;
#define LIGHT_COUNT 3
#define SHADOW_FACTOR 0.25
#define AMBIENT_LIGHT 0.0
#define AMBIENT_LIGHT 0.1
#define USE_PCF
struct Light

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data/shaders/deferredshadows/deferred.frag.spv
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1
data/shaders/deferredshadows/mrt.frag
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@ -22,7 +22,6 @@ void main()
// Calculate normal in tangent space
vec3 N = normalize(inNormal);
N.y = -N.y;
vec3 T = normalize(inTangent);
vec3 B = cross(N, T);
mat3 TBN = mat3(T, B, N);

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data/shaders/deferredshadows/mrt.frag.spv
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data/textures/pattern_57_diffuse_bc3.ktx Normal file
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data/textures/pattern_57_normal_bc3.ktx Normal file
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558
deferredshadows/deferredshadows.cpp
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@ -20,13 +20,13 @@
#include <vulkan/vulkan.h>
#include "vulkanexamplebase.h"
#include "vulkanframebuffer.hpp"
#define VERTEX_BUFFER_BIND_ID 0
#define ENABLE_VALIDATION false
// Shadowmap properties
#define SHADOWMAP_DIM 2048
#define SHADOWMAP_FILTER VK_FILTER_LINEAR
// 16 bits of depth is enough for such a small scene
#define SHADOWMAP_FORMAT VK_FORMAT_D32_SFLOAT_S8_UINT
@ -55,7 +55,7 @@ public:
// for better shadow map precision
float zNear = 0.1f;
float zFar = 64.0f;
float lightFOV = 75.0f;
float lightFOV = 120.0f;
// Depth bias (and slope) are used to avoid shadowing artefacts
float depthBiasConstant = 1.25f;
@ -141,44 +141,12 @@ public:
VkDescriptorSet descriptorSet;
VkDescriptorSetLayout descriptorSetLayout;
// todo : move to vktools (or separate unit)
struct FrameBufferAttachment
{
VkImage image;
VkDeviceMemory mem;
VkImageView view;
VkFormat format;
bool isDepth = false;
};
// todo : move to vktools (or separate unit) and turn into class
struct FrameBuffer
{
uint32_t width, height;
VkFramebuffer frameBuffer;
std::vector<FrameBufferAttachment> attachments;
VkRenderPass renderPass;
VkSampler sampler;
void FreeResources(VkDevice device)
{
for (auto attachment : attachments)
{
vkDestroyImage(device, attachment.image, nullptr);
vkDestroyImageView(device, attachment.view, nullptr);
vkFreeMemory(device, attachment.mem, nullptr);
}
vkDestroySampler(device, sampler, nullptr);
vkDestroyRenderPass(device, renderPass, nullptr);
vkDestroyFramebuffer(device, frameBuffer, nullptr);
}
};
struct
{
// Framebuffer resources for the deferred pass
FrameBuffer deferred;
vk::Framebuffer *deferred;
// Framebuffer resources for the shadow pass
FrameBuffer shadow;
vk::Framebuffer *shadow;
} frameBuffers;
struct {
@ -209,13 +177,21 @@ public:
camera.position = { 2.15f, 0.3f, -8.75f };
camera.setRotation(glm::vec3(-0.75f, 12.5f, 0.0f));
camera.setPerspective(60.0f, (float)width / (float)height, zNear, zFar);
timerSpeed *= 0.25f;
paused = true;
}
~VulkanExample()
{
// Frame buffers
frameBuffers.shadow.FreeResources(device);
frameBuffers.deferred.FreeResources(device);
if (frameBuffers.deferred)
{
delete frameBuffers.deferred;
}
if (frameBuffers.shadow)
{
delete frameBuffers.shadow;
}
vkDestroyPipeline(device, pipelines.deferred, nullptr);
vkDestroyPipeline(device, pipelines.offscreen, nullptr);
@ -249,167 +225,6 @@ public:
vkDestroySemaphore(device, offscreenSemaphore, nullptr);
}
// Create a frame buffer attachment
// todo : move into frame buffer class
void createAttachment(VkFormat format, VkImageUsageFlagBits usage, FrameBufferAttachment *attachment, VkCommandBuffer layoutCmd, bool depthSample = false)
{
VkImageAspectFlags aspectMask = 0;
VkImageLayout imageLayout;
attachment->format = format;
if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
{
aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
}
if (usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT)
{
aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
imageLayout = depthSample ? VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL : VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
attachment->isDepth = true;
}
assert(aspectMask > 0);
VkImageCreateInfo image = vkTools::initializers::imageCreateInfo();
image.imageType = VK_IMAGE_TYPE_2D;
image.format = format;
image.extent.width = frameBuffers.deferred.width;
image.extent.height = frameBuffers.deferred.height;
image.extent.depth = 1;
image.mipLevels = 1;
image.arrayLayers = 1;
image.samples = VK_SAMPLE_COUNT_1_BIT;
image.tiling = VK_IMAGE_TILING_OPTIMAL;
image.usage = usage | VK_IMAGE_USAGE_SAMPLED_BIT;
VkMemoryAllocateInfo memAlloc = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &attachment->image));
vkGetImageMemoryRequirements(device, attachment->image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &attachment->mem));
VK_CHECK_RESULT(vkBindImageMemory(device, attachment->image, attachment->mem, 0));
if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
{
// Set the initial layout to shader read instead of attachment
// This is done as the render loop does the actualy image layout transitions
vkTools::setImageLayout(
layoutCmd,
attachment->image,
aspectMask,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
}
else
{
vkTools::setImageLayout(
layoutCmd,
attachment->image,
aspectMask,
VK_IMAGE_LAYOUT_UNDEFINED,
imageLayout);
}
VkImageViewCreateInfo imageView = vkTools::initializers::imageViewCreateInfo();
imageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
imageView.format = format;
imageView.subresourceRange = {};
imageView.subresourceRange.aspectMask = aspectMask;
imageView.subresourceRange.baseMipLevel = 0;
imageView.subresourceRange.levelCount = 1;
imageView.subresourceRange.baseArrayLayer = 0;
imageView.subresourceRange.layerCount = 1;
imageView.image = attachment->image;
VK_CHECK_RESULT(vkCreateImageView(device, &imageView, nullptr, &attachment->view));
}
// Create a layered attachment
// todo: not used yet, move into framebuffer class
void createLayeredAttachment(VkFormat format, VkImageUsageFlagBits usage, FrameBufferAttachment *attachment, uint32_t layerCount, VkCommandBuffer layoutCmd, bool depthSample = false)
{
VkImageAspectFlags aspectMask = 0;
VkImageLayout imageLayout;
attachment->format = format;
if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
{
aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
}
if (usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT)
{
aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
imageLayout = depthSample ? VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL : VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
}
assert(aspectMask > 0);
VkImageCreateInfo image = vkTools::initializers::imageCreateInfo();
image.imageType = VK_IMAGE_TYPE_2D;
image.format = format;
image.extent.width = frameBuffers.deferred.width;
image.extent.height = frameBuffers.deferred.height;
image.extent.depth = 1;
image.mipLevels = 1;
image.arrayLayers = layerCount;
image.samples = VK_SAMPLE_COUNT_1_BIT;
image.tiling = VK_IMAGE_TILING_OPTIMAL;
image.usage = usage | VK_IMAGE_USAGE_SAMPLED_BIT;
VkMemoryAllocateInfo memAlloc = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &attachment->image));
vkGetImageMemoryRequirements(device, attachment->image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &attachment->mem));
VK_CHECK_RESULT(vkBindImageMemory(device, attachment->image, attachment->mem, 0));
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = aspectMask;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = layerCount;
if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
{
// Set the initial layout to shader read instead of attachment
// This is done as the render loop does the actualy image layout transitions
vkTools::setImageLayout(
layoutCmd,
attachment->image,
aspectMask,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
subresourceRange);
}
else
{
vkTools::setImageLayout(
layoutCmd,
attachment->image,
aspectMask,
VK_IMAGE_LAYOUT_UNDEFINED,
imageLayout,
subresourceRange);
}
VkImageViewCreateInfo imageView = vkTools::initializers::imageViewCreateInfo();
imageView.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
imageView.format = format;
imageView.subresourceRange = subresourceRange;
imageView.image = attachment->image;
VK_CHECK_RESULT(vkCreateImageView(device, &imageView, nullptr, &attachment->view));
}
// Prepare a layered shadow map with each layer containing depth from a light's point of view
// The shadow mapping pass uses geometry shader instancing to output the scene from the different
// light sources' point of view to the layers of the depth attachment in one single pass
@ -417,121 +232,31 @@ public:
{
VkCommandBuffer layoutCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
frameBuffers.shadow.width = SHADOWMAP_DIM;
frameBuffers.shadow.height = SHADOWMAP_DIM;
// One layered (depth) attachment
frameBuffers.shadow.attachments.resize(1);
frameBuffers.shadow = new vk::Framebuffer(&vulkanDevice);
// Color attachment
VkImageCreateInfo image = vkTools::initializers::imageCreateInfo();
image.imageType = VK_IMAGE_TYPE_2D;
image.format = SHADOWMAP_FORMAT;
image.extent.width = frameBuffers.shadow.width;
image.extent.height = frameBuffers.shadow.height;
image.extent.depth = 1;
image.mipLevels = 1;
// Use a layererd attachment with one layer per light
image.arrayLayers = LIGHT_COUNT;
image.samples = VK_SAMPLE_COUNT_1_BIT;
image.tiling = VK_IMAGE_TILING_OPTIMAL;
// Sample directly from the depth attachment for the shadow mapping
image.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
frameBuffers.shadow->width = SHADOWMAP_DIM;
frameBuffers.shadow->height = SHADOWMAP_DIM;
VkImageViewCreateInfo depthStencilView = vkTools::initializers::imageViewCreateInfo();
depthStencilView.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
depthStencilView.format = SHADOWMAP_FORMAT;
depthStencilView.subresourceRange = {};
depthStencilView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
depthStencilView.subresourceRange.baseMipLevel = 0;
depthStencilView.subresourceRange.levelCount = 1;
depthStencilView.subresourceRange.baseArrayLayer = 0;
depthStencilView.subresourceRange.layerCount = LIGHT_COUNT;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &frameBuffers.shadow.attachments[0].image));
VkMemoryAllocateInfo memAlloc = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
vkGetImageMemoryRequirements(device, frameBuffers.shadow.attachments[0].image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &frameBuffers.shadow.attachments[0].mem));
VK_CHECK_RESULT(vkBindImageMemory(device, frameBuffers.shadow.attachments[0].image, frameBuffers.shadow.attachments[0].mem, 0));
// Set the initial layout to shader read instead of attachment
// This is done as the render loop does the actualy image layout transitions
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = LIGHT_COUNT;
vkTools::setImageLayout(
layoutCmd,
frameBuffers.shadow.attachments[0].image,
VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
subresourceRange);
// Create a layered depth attachment for rendering the depth maps from the lights' point of view
// Each layer corresponds to one of the lights
// The actual output to the separate layers is done in the geometry shader using shader instancing
// We will pass the matrices of the lights to the GS that selects the layer by the current invocation
vk::AttachmentCreateInfo framebufferInfo = {};
framebufferInfo.format = SHADOWMAP_FORMAT;
framebufferInfo.width = SHADOWMAP_DIM;
framebufferInfo.height = SHADOWMAP_DIM;
framebufferInfo.layerCount = LIGHT_COUNT;
framebufferInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
frameBuffers.shadow->addAttachment(framebufferInfo, layoutCmd);
VulkanExampleBase::flushCommandBuffer(layoutCmd, queue, true);
depthStencilView.image = frameBuffers.shadow.attachments[0].image;
VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &frameBuffers.shadow.attachments[0].view));
// Create sampler to sample from to depth attachment
// Used to sample in the fragment shader for shadowed rendering
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = SHADOWMAP_FILTER;
sampler.minFilter = SHADOWMAP_FILTER;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 0;
sampler.minLod = 0.0f;
sampler.maxLod = 1.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &frameBuffers.shadow.sampler));
VK_CHECK_RESULT(frameBuffers.shadow->createSampler(VK_FILTER_LINEAR, VK_FILTER_LINEAR, VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE));
VkAttachmentDescription attachmentDescription = {};
attachmentDescription.format = SHADOWMAP_FORMAT;
attachmentDescription.samples = VK_SAMPLE_COUNT_1_BIT;
attachmentDescription.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachmentDescription.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachmentDescription.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachmentDescription.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachmentDescription.initialLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
attachmentDescription.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkAttachmentReference attachmentReference = {};
attachmentReference.attachment = 0;
attachmentReference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 0;
subpass.pColorAttachments = nullptr;
subpass.pDepthStencilAttachment = &attachmentReference;
VkRenderPassCreateInfo renderPassCreateInfo = vkTools::initializers::renderPassCreateInfo();
renderPassCreateInfo.attachmentCount = 1;
renderPassCreateInfo.pAttachments = &attachmentDescription;
renderPassCreateInfo.subpassCount = 1;
renderPassCreateInfo.pSubpasses = &subpass;
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassCreateInfo, nullptr, &frameBuffers.shadow.renderPass));
// Create frame buffer
VkFramebufferCreateInfo fbufCreateInfo = vkTools::initializers::framebufferCreateInfo();
fbufCreateInfo.renderPass = frameBuffers.shadow.renderPass;
// Only one (layered depth) attachment
fbufCreateInfo.attachmentCount = 1;
fbufCreateInfo.pAttachments = &frameBuffers.shadow.attachments[0].view;
fbufCreateInfo.width = frameBuffers.shadow.width;
fbufCreateInfo.height = frameBuffers.shadow.height;
fbufCreateInfo.layers = LIGHT_COUNT;
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &frameBuffers.shadow.frameBuffer));
// Create default renderpass for the framebuffer
VK_CHECK_RESULT(frameBuffers.shadow->createRenderPass());
}
// Prepare the framebuffer for offscreen rendering with multiple attachments used as render targets inside the fragment shaders
@ -539,33 +264,30 @@ public:
{
VkCommandBuffer layoutCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
frameBuffers.deferred.width = FB_DIM;
frameBuffers.deferred.height = FB_DIM;
frameBuffers.deferred = new vk::Framebuffer(&vulkanDevice);
frameBuffers.deferred->width = FB_DIM;
frameBuffers.deferred->height = FB_DIM;
// Four attachments (3 color, 1 depth)
frameBuffers.deferred.attachments.resize(4);
vk::AttachmentCreateInfo framebufferInfo = {};
framebufferInfo.width = FB_DIM;
framebufferInfo.height = FB_DIM;
framebufferInfo.layerCount = 1;
framebufferInfo.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
// Color attachments
// Attachment 0: (World space) Positions
createAttachment(
VK_FORMAT_R16G16B16A16_SFLOAT,
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
&frameBuffers.deferred.attachments[0],
layoutCmd);
framebufferInfo.format = VK_FORMAT_R16G16B16A16_SFLOAT;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
// Attachment 1: (World space) Normals
createAttachment(
VK_FORMAT_R16G16B16A16_SFLOAT,
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
&frameBuffers.deferred.attachments[1],
layoutCmd);
framebufferInfo.format = VK_FORMAT_R16G16B16A16_SFLOAT;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
// Attachment 1: Albedo (color)
createAttachment(
VK_FORMAT_R8G8B8A8_UNORM,
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
&frameBuffers.deferred.attachments[2],
layoutCmd);
// Attachment 2: Albedo (color)
framebufferInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
// Depth attachment
// Find a suitable depth format
@ -573,94 +295,17 @@ public:
VkBool32 validDepthFormat = vkTools::getSupportedDepthFormat(physicalDevice, &attDepthFormat);
assert(validDepthFormat);
createAttachment(
attDepthFormat,
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
&frameBuffers.deferred.attachments[3],
layoutCmd);
framebufferInfo.format = attDepthFormat;
framebufferInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
VulkanExampleBase::flushCommandBuffer(layoutCmd, queue, true);
// Set up separate renderpass with references
// to the color and depth attachments
std::array<VkAttachmentDescription, 4> attachmentDescs = {};
// Init attachment properties
for (uint32_t i = 0; i < 4; ++i)
{
attachmentDescs[i].samples = VK_SAMPLE_COUNT_1_BIT;
attachmentDescs[i].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachmentDescs[i].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachmentDescs[i].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachmentDescs[i].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachmentDescs[i].format = frameBuffers.deferred.attachments[i].format;
if (i == 3)
{
attachmentDescs[i].initialLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
attachmentDescs[i].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
}
else
{
attachmentDescs[i].initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
attachmentDescs[i].finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
}
}
std::vector<VkAttachmentReference> colorReferences;
colorReferences.push_back({ 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
colorReferences.push_back({ 1, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
colorReferences.push_back({ 2, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
VkAttachmentReference depthReference = {};
depthReference.attachment = 3;
depthReference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.pColorAttachments = colorReferences.data();
subpass.colorAttachmentCount = static_cast<uint32_t>(colorReferences.size());
subpass.pDepthStencilAttachment = &depthReference;
VkRenderPassCreateInfo renderPassInfo = {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.pAttachments = attachmentDescs.data();
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachmentDescs.size());
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &frameBuffers.deferred.renderPass));
std::vector<VkImageView> attachments;
for (auto attachment : frameBuffers.deferred.attachments)
{
attachments.push_back(attachment.view);
}
VkFramebufferCreateInfo fbufCreateInfo = {};
fbufCreateInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
fbufCreateInfo.pNext = NULL;
fbufCreateInfo.renderPass = frameBuffers.deferred.renderPass;
fbufCreateInfo.pAttachments = attachments.data();
fbufCreateInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
fbufCreateInfo.width = frameBuffers.deferred.width;
fbufCreateInfo.height = frameBuffers.deferred.height;
fbufCreateInfo.layers = LIGHT_COUNT;
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &frameBuffers.deferred.frameBuffer));
// Create sampler to sample from the color attachments
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 0;
sampler.minLod = 0.0f;
sampler.maxLod = 1.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &frameBuffers.deferred.sampler));
VK_CHECK_RESULT(frameBuffers.deferred->createSampler(VK_FILTER_LINEAR, VK_FILTER_LINEAR, VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE));
// Create default renderpass for the framebuffer
VK_CHECK_RESULT(frameBuffers.deferred->createRenderPass());
}
// Put render commands for the scene into the given command buffer
@ -704,10 +349,10 @@ public:
clearValues[0].depthStencil = { 1.0f, 0 };
renderPassBeginInfo.renderPass = frameBuffers.shadow.renderPass;
renderPassBeginInfo.framebuffer = frameBuffers.shadow.frameBuffer;
renderPassBeginInfo.renderArea.extent.width = frameBuffers.shadow.width;
renderPassBeginInfo.renderArea.extent.height = frameBuffers.shadow.height;
renderPassBeginInfo.renderPass = frameBuffers.shadow->renderPass;
renderPassBeginInfo.framebuffer = frameBuffers.shadow->framebuffer;
renderPassBeginInfo.renderArea.extent.width = frameBuffers.shadow->width;
renderPassBeginInfo.renderArea.extent.height = frameBuffers.shadow->height;
renderPassBeginInfo.clearValueCount = 1;
renderPassBeginInfo.pClearValues = clearValues.data();
@ -715,24 +360,18 @@ public:
// Change back layout of the depth attachment after sampling in the fragment shader
// todo: replace with subpass dependency
VkImageSubresourceRange subresourceRange = {};
subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = 1;
subresourceRange.layerCount = LIGHT_COUNT;
vkTools::setImageLayout(
commandBuffers.deferred,
frameBuffers.shadow.attachments[0].image,
frameBuffers.shadow->attachments[0].image,
VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
subresourceRange);
frameBuffers.shadow->attachments[0].subresourceRange);
viewport = vkTools::initializers::viewport((float)frameBuffers.shadow.width, (float)frameBuffers.shadow.height, 0.0f, 1.0f);
viewport = vkTools::initializers::viewport((float)frameBuffers.shadow->width, (float)frameBuffers.shadow->height, 0.0f, 1.0f);
vkCmdSetViewport(commandBuffers.deferred, 0, 1, &viewport);
scissor = vkTools::initializers::rect2D(frameBuffers.shadow.width, frameBuffers.shadow.height, 0, 0);
scissor = vkTools::initializers::rect2D(frameBuffers.shadow->width, frameBuffers.shadow->height, 0, 0);
vkCmdSetScissor(commandBuffers.deferred, 0, 1, &scissor);
// Set depth bias (aka "Polygon offset")
@ -751,20 +390,20 @@ public:
// todo: replace with subpass dependency
vkTools::setImageLayout(
commandBuffers.deferred,
frameBuffers.shadow.attachments[0].image,
frameBuffers.shadow->attachments[0].image,
VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
subresourceRange);
frameBuffers.shadow->attachments[0].subresourceRange);
// Deferred pass second
// -------------------------------------------------------------------------------------------------------
// Change back layout of the color attachments after sampling in the fragment shader
// todo: replace with subpass dependency
for (auto attachment : frameBuffers.deferred.attachments)
for (auto attachment : frameBuffers.deferred->attachments)
{
if (!attachment.isDepth)
if (!attachment.hasDepth())
{
vkTools::setImageLayout(
commandBuffers.deferred,
@ -781,19 +420,19 @@ public:
clearValues[2].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
clearValues[3].depthStencil = { 1.0f, 0 };
renderPassBeginInfo.renderPass = frameBuffers.deferred.renderPass;
renderPassBeginInfo.framebuffer = frameBuffers.deferred.frameBuffer;
renderPassBeginInfo.renderArea.extent.width = frameBuffers.deferred.width;
renderPassBeginInfo.renderArea.extent.height = frameBuffers.deferred.height;
renderPassBeginInfo.renderPass = frameBuffers.deferred->renderPass;
renderPassBeginInfo.framebuffer = frameBuffers.deferred->framebuffer;
renderPassBeginInfo.renderArea.extent.width = frameBuffers.deferred->width;
renderPassBeginInfo.renderArea.extent.height = frameBuffers.deferred->height;
renderPassBeginInfo.clearValueCount = static_cast<uint32_t>(clearValues.size());
renderPassBeginInfo.pClearValues = clearValues.data();
vkCmdBeginRenderPass(commandBuffers.deferred, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
viewport = vkTools::initializers::viewport((float)frameBuffers.deferred.width, (float)frameBuffers.deferred.height, 0.0f, 1.0f);
viewport = vkTools::initializers::viewport((float)frameBuffers.deferred->width, (float)frameBuffers.deferred->height, 0.0f, 1.0f);
vkCmdSetViewport(commandBuffers.deferred, 0, 1, &viewport);
scissor = vkTools::initializers::rect2D(frameBuffers.deferred.width, frameBuffers.deferred.height, 0, 0);
scissor = vkTools::initializers::rect2D(frameBuffers.deferred->width, frameBuffers.deferred->height, 0, 0);
vkCmdSetScissor(commandBuffers.deferred, 0, 1, &scissor);
vkCmdBindPipeline(commandBuffers.deferred, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.offscreen);
@ -802,9 +441,9 @@ public:
// Change back layout of the color attachments after sampling in the fragment shader
// todo: replace with subpass dependency
for (auto attachment : frameBuffers.deferred.attachments)
for (auto attachment : frameBuffers.deferred->attachments)
{
if (!attachment.isDepth)
if (!attachment.hasDepth())
{
vkTools::setImageLayout(
commandBuffers.deferred,
@ -822,8 +461,8 @@ public:
{
textureLoader->loadTexture(getAssetPath() + "models/armor/colormap.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.model.colorMap);
textureLoader->loadTexture(getAssetPath() + "models/armor/normalmap.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.model.normalMap);
textureLoader->loadTexture(getAssetPath() + "textures/pattern57_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.background.colorMap);
textureLoader->loadTexture(getAssetPath() + "textures/pattern57_normal_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.background.normalMap);
textureLoader->loadTexture(getAssetPath() + "textures/pattern_57_diffuse_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.background.colorMap);
textureLoader->loadTexture(getAssetPath() + "textures/pattern_57_normal_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.background.normalMap);
}
void reBuildCommandBuffers()
@ -1077,26 +716,26 @@ public:
// Image descriptors for the offscreen color attachments
VkDescriptorImageInfo texDescriptorPosition =
vkTools::initializers::descriptorImageInfo(
frameBuffers.deferred.sampler,
frameBuffers.deferred.attachments[0].view,
frameBuffers.deferred->sampler,
frameBuffers.deferred->attachments[0].view,
VK_IMAGE_LAYOUT_GENERAL);
VkDescriptorImageInfo texDescriptorNormal =
vkTools::initializers::descriptorImageInfo(
frameBuffers.deferred.sampler,
frameBuffers.deferred.attachments[1].view,
frameBuffers.deferred->sampler,
frameBuffers.deferred->attachments[1].view,
VK_IMAGE_LAYOUT_GENERAL);
VkDescriptorImageInfo texDescriptorAlbedo =
vkTools::initializers::descriptorImageInfo(
frameBuffers.deferred.sampler,
frameBuffers.deferred.attachments[2].view,
frameBuffers.deferred->sampler,
frameBuffers.deferred->attachments[2].view,
VK_IMAGE_LAYOUT_GENERAL);
VkDescriptorImageInfo texDescriptorShadowMap =
vkTools::initializers::descriptorImageInfo(
frameBuffers.shadow.sampler,
frameBuffers.shadow.attachments[0].view,
frameBuffers.shadow->sampler,
frameBuffers.shadow->attachments[0].view,
VK_IMAGE_LAYOUT_GENERAL);
writeDescriptorSets = {
@ -1290,7 +929,7 @@ public:
shaderStages[1] = loadShader(getAssetPath() + "shaders/deferredshadows/mrt.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
// Separate render pass
pipelineCreateInfo.renderPass = frameBuffers.deferred.renderPass;
pipelineCreateInfo.renderPass = frameBuffers.deferred->renderPass;
// Separate layout
pipelineCreateInfo.layout = pipelineLayouts.offscreen;
@ -1321,7 +960,7 @@ public:
pipelineCreateInfo.pStages = shadowStages.data();
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shadowStages.size());
// Shadow pass doesn't use a color attachment
// Shadow pass doesn't use any color attachments
colorBlendState.attachmentCount = 0;
colorBlendState.pAttachments = nullptr;
// Cull front faces
@ -1334,11 +973,10 @@ public:
dynamicState =
vkTools::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
dynamicStateEnables.size(),
static_cast<uint32_t>(dynamicStateEnables.size()),
0);
// Reset blend attachment state
colorBlendState = vkTools::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
pipelineCreateInfo.renderPass = frameBuffers.shadow.renderPass;
pipelineCreateInfo.renderPass = frameBuffers.shadow->renderPass;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.shadowpass));
}
@ -1390,6 +1028,10 @@ public:
uboOffscreenVS.instancePos[1] = glm::vec4(-4.0f, 0.0, -4.0f, 0.0f);
uboOffscreenVS.instancePos[2] = glm::vec4(4.0f, 0.0, -4.0f, 0.0f);
uboOffscreenVS.instancePos[1] = glm::vec4(-7.0f, 0.0, -4.0f, 0.0f);
uboOffscreenVS.instancePos[2] = glm::vec4(4.0f, 0.0, -6.0f, 0.0f);
// Update
updateUniformBuffersScreen();
updateUniformBufferDeferredMatrices();
@ -1431,7 +1073,7 @@ public:
{
std::vector<glm::vec4> lightPositions =
{
glm::vec4(-14.0f, -0.0f, 15.0f, 0.0f),
glm::vec4(-14.0f, -0.5f, 15.0f, 0.0f),
glm::vec4(14.0f, -4.0f, 12.0f, 0.0f),
glm::vec4(0.0f, -10.0f, 4.0f, 0.0f)
};
@ -1448,6 +1090,17 @@ public:
glm::vec4(0.0f, 0.0f, 0.0f, 0.0f),
};
// Animate
// todo: wip
lightPositions[0].x = -14.0f + abs(sin(glm::radians(timer * 360.0f)) * 20.0f);
lightPositions[0].z = 15.0f + cos(glm::radians(timer *360.0f)) * 1.0f;
lightPositions[1].x = 14.0f - abs(sin(glm::radians(timer * 360.0f)) * 2.5f);
lightPositions[1].z = 13.0f + cos(glm::radians(timer *360.0f)) * 4.0f;
lightPositions[2].x = 0.0f + sin(glm::radians(timer *360.0f)) * 4.0f;
lightPositions[2].z = 4.0f + cos(glm::radians(timer *360.0f)) * 2.0f;
for (uint32_t i = 0; i < static_cast<uint32_t>(lightPositions.size()); i++)
{
Light *light = &uboFragmentLights.lights[i];
@ -1536,7 +1189,8 @@ public:
if (!prepared)
return;
draw();
//updateUniformBufferDeferredLights();
if (!paused)
updateUniformBufferDeferredLights();
}
virtual void viewChanged()

12
deferredshadows/deferredshadows.vcxproj
View file

@ -87,8 +87,20 @@
<ItemGroup>
<ClInclude Include="..\base\vulkandebug.h" />
<ClInclude Include="..\base\vulkanexamplebase.h" />
<ClInclude Include="..\base\vulkanframebuffer.hpp" />
<ClInclude Include="..\base\vulkantools.h" />
</ItemGroup>
<ItemGroup>
<None Include="..\data\shaders\deferredshadows\debug.frag" />
<None Include="..\data\shaders\deferredshadows\debug.vert" />
<None Include="..\data\shaders\deferredshadows\deferred.frag" />
<None Include="..\data\shaders\deferredshadows\deferred.vert" />
<None Include="..\data\shaders\deferredshadows\mrt.frag" />
<None Include="..\data\shaders\deferredshadows\mrt.vert" />
<None Include="..\data\shaders\deferredshadows\shadow.frag" />
<None Include="..\data\shaders\deferredshadows\shadow.geom" />
<None Include="..\data\shaders\deferredshadows\shadow.vert" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>

35
deferredshadows/deferredshadows.vcxproj.filters
View file

@ -13,6 +13,9 @@
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
</Filter>
<Filter Include="Shaders">
<UniqueIdentifier>{9e89ec36-20e5-4fab-8bb2-2db119827e59}</UniqueIdentifier>
</Filter>
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\base\vulkandebug.cpp">
@ -38,5 +41,37 @@
<ClInclude Include="..\base\vulkantools.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\base\vulkanframebuffer.hpp">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<None Include="..\data\shaders\deferredshadows\debug.frag">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\debug.vert">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\deferred.frag">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\deferred.vert">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\mrt.frag">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\mrt.vert">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\shadow.frag">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\shadow.geom">
<Filter>Shaders</Filter>
</None>
<None Include="..\data\shaders\deferredshadows\shadow.vert">
<Filter>Shaders</Filter>
</None>
</ItemGroup>
</Project>