void Renderer::_InitRenderPass() {
VkAttachmentDescription color_attachment {};
color_attachment.format = _window->getSurfaceFormat().format;
color_attachment.samples = VK_SAMPLE_COUNT_1_BIT;
color_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
color_attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
color_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
color_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
color_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
color_attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
VkAttachmentDescription depth_attachment {};
depth_attachment.format = findSupportedFormat(
{ VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT },
VK_IMAGE_TILING_OPTIMAL,
VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
);
depth_attachment.samples = VK_SAMPLE_COUNT_1_BIT;
depth_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
depth_attachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
depth_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
depth_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
depth_attachment.initialLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
depth_attachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkAttachmentReference color_attachment_reference {};
color_attachment_reference.attachment = 0;
color_attachment_reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference depth_attachment_reference {};
depth_attachment_reference.attachment = 1;
depth_attachment_reference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass{};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &color_attachment_reference;
subpass.pDepthStencilAttachment = &depth_attachment_reference;
VkSubpassDependency dependency {};
dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
dependency.dstSubpass = 0;
dependency.srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependency.srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
std::array<VkAttachmentDescription, 2> attachments = { color_attachment, depth_attachment };
VkRenderPassCreateInfo render_pass_create_info {};
render_pass_create_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
render_pass_create_info.attachmentCount = (uint32_t)attachments.size();
render_pass_create_info.pAttachments = attachments.data();
render_pass_create_info.subpassCount = 1;
render_pass_create_info.pSubpasses = &subpass;
render_pass_create_info.dependencyCount = 1;
render_pass_create_info.pDependencies = &dependency;
ErrorCheck(vkCreateRenderPass(_device, &render_pass_create_info, nullptr, &_render_pass));
}
VkFormat VkApp::findDepthFormat(){
return findSupportedFormat( {VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT},
VK_IMAGE_TILING_OPTIMAL,
VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
);
}
