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Removed layout transitions and transition cmd buffers, replaced by subpass dependencies of framebuffer class (Refs #155)

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This commit is contained in:
saschawillems 2016-08-12 22:13:37 +02:00
parent dae07726dc
commit 5d258ce249
1 changed files with 9 additions and 66 deletions
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73
deferredshadows/deferredshadows.cpp
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@ -245,8 +245,6 @@ public:
// light sources' point of view to the layers of the depth attachment in one single pass
void shadowSetup()
{
VkCommandBuffer layoutCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
frameBuffers.shadow = new vk::Framebuffer(vulkanDevice);
frameBuffers.shadow->width = SHADOWMAP_DIM;
@ -262,9 +260,7 @@ public:
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);
frameBuffers.shadow->addAttachment(framebufferInfo);
// Create sampler to sample from to depth attachment
// Used to sample in the fragment shader for shadowed rendering
@ -277,8 +273,6 @@ public:
// Prepare the framebuffer for offscreen rendering with multiple attachments used as render targets inside the fragment shaders
void deferredSetup()
{
VkCommandBuffer layoutCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
frameBuffers.deferred = new vk::Framebuffer(vulkanDevice);
frameBuffers.deferred->width = FB_DIM;
@ -294,15 +288,15 @@ public:
// Color attachments
// Attachment 0: (World space) Positions
framebufferInfo.format = VK_FORMAT_R16G16B16A16_SFLOAT;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
frameBuffers.deferred->addAttachment(framebufferInfo);
// Attachment 1: (World space) Normals
framebufferInfo.format = VK_FORMAT_R16G16B16A16_SFLOAT;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
frameBuffers.deferred->addAttachment(framebufferInfo);
// Attachment 2: Albedo (color)
framebufferInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
frameBuffers.deferred->addAttachment(framebufferInfo);
// Depth attachment
// Find a suitable depth format
@ -312,9 +306,7 @@ public:
framebufferInfo.format = attDepthFormat;
framebufferInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
frameBuffers.deferred->addAttachment(framebufferInfo, layoutCmd);
VulkanExampleBase::flushCommandBuffer(layoutCmd, queue, true);
frameBuffers.deferred->addAttachment(framebufferInfo);
// Create sampler to sample from the color attachments
VK_CHECK_RESULT(frameBuffers.deferred->createSampler(VK_FILTER_LINEAR, VK_FILTER_LINEAR, VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE));
@ -360,7 +352,8 @@ public:
VkViewport viewport;
VkRect2D scissor;
// Shadow map generation pass first
// First pass: Shadow map generation
// -------------------------------------------------------------------------------------------------------
clearValues[0].depthStencil = { 1.0f, 0 };
@ -373,16 +366,6 @@ public:
VK_CHECK_RESULT(vkBeginCommandBuffer(commandBuffers.deferred, &cmdBufInfo));
// Change back layout of the depth attachment after sampling in the fragment shader
// todo: replace with subpass dependency
vkTools::setImageLayout(
commandBuffers.deferred,
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,
frameBuffers.shadow->attachments[0].subresourceRange);
viewport = vkTools::initializers::viewport((float)frameBuffers.shadow->width, (float)frameBuffers.shadow->height, 0.0f, 1.0f);
vkCmdSetViewport(commandBuffers.deferred, 0, 1, &viewport);
@ -401,34 +384,9 @@ public:
renderScene(commandBuffers.deferred, true);
vkCmdEndRenderPass(commandBuffers.deferred);
// Change layout of the depth attachment for sampling in the fragment shader
// todo: replace with subpass dependency
vkTools::setImageLayout(
commandBuffers.deferred,
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,
frameBuffers.shadow->attachments[0].subresourceRange);
// Deferred pass second
// Second pass: Deferred calculations
// -------------------------------------------------------------------------------------------------------
// Change back layout of the color attachments after sampling in the fragment shader
// todo: replace with subpass dependency
for (auto attachment : frameBuffers.deferred->attachments)
{
if (!attachment.hasDepth())
{
vkTools::setImageLayout(
commandBuffers.deferred,
attachment.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
}
}
// Clear values for all attachments written in the fragment sahder
clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
clearValues[1].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
@ -454,21 +412,6 @@ public:
renderScene(commandBuffers.deferred, false);
vkCmdEndRenderPass(commandBuffers.deferred);
// Change back layout of the color attachments after sampling in the fragment shader
// todo: replace with subpass dependency
for (auto attachment : frameBuffers.deferred->attachments)
{
if (!attachment.hasDepth())
{
vkTools::setImageLayout(
commandBuffers.deferred,
attachment.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
}
}
VK_CHECK_RESULT(vkEndCommandBuffer(commandBuffers.deferred));
}