AddColorAttachment() [2/2]

template<typename T >

Renderer::RendererPassBuilder & Spices::Renderer::RendererPassBuilder::AddColorAttachment	(	const std::string &	attachmentName,
		const TextureType &	type,
		T	func )

Instance a VkAttachmentDescription.

Write in data.

Parameters

[in]	isEnableBlend	True if This Attachment can be blend.
	[in	attachmentDescription VkAttachmentDescription.

Instance a VkClearValue.

Instance a VkPipelineColorBlendAttachmentState.

Instance a RendererResourceCreateInfo.

Get layers.

Instance a VkAttachmentReference.

Definition at line 2795 of file Renderer.h.

    {
        SPICES_PROFILE_ZONE;
 
        VkAttachmentDescription                   attachmentDescription{};
        attachmentDescription.format            = m_Renderer->m_Device->GetSwapChainSupport().format.format;
        attachmentDescription.samples           = VK_SAMPLE_COUNT_1_BIT;
        attachmentDescription.loadOp            = VK_ATTACHMENT_LOAD_OP_LOAD;
        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_COLOR_ATTACHMENT_OPTIMAL;
        attachmentDescription.finalLayout       = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
 
        bool isEnableBlend = false;
        func(isEnableBlend, attachmentDescription);
 
        VkClearValue clearValue{};
        clearValue.color                        = { 0.0f, 0.0f, 0.0f, 1.0f };
 
        VkPipelineColorBlendAttachmentState colorBlend{};
        colorBlend.colorWriteMask               = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |
                                                  VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
        if (!isEnableBlend)
        {
            colorBlend.blendEnable              = VK_FALSE;
            colorBlend.srcColorBlendFactor      = VK_BLEND_FACTOR_ONE;
            colorBlend.dstColorBlendFactor      = VK_BLEND_FACTOR_ZERO;
            colorBlend.colorBlendOp             = VK_BLEND_OP_ADD;
            colorBlend.srcAlphaBlendFactor      = VK_BLEND_FACTOR_ONE;
            colorBlend.dstAlphaBlendFactor      = VK_BLEND_FACTOR_ZERO;
            colorBlend.alphaBlendOp             = VK_BLEND_OP_ADD;
        }
        else
        {
            colorBlend.blendEnable              = VK_TRUE;
            colorBlend.srcColorBlendFactor      = VK_BLEND_FACTOR_SRC_ALPHA;
            colorBlend.dstColorBlendFactor      = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
            colorBlend.colorBlendOp             = VK_BLEND_OP_ADD;
            colorBlend.srcAlphaBlendFactor      = VK_BLEND_FACTOR_ONE;
            colorBlend.dstAlphaBlendFactor      = VK_BLEND_FACTOR_ONE; // Stable alpha channel to 1, for ImGui::Image will rendering background wrongly.
            colorBlend.alphaBlendOp             = VK_BLEND_OP_ADD;
        }
 
        RendererResourceCreateInfo Info;
        Info.name                               = attachmentName;
        Info.type                               = type;
        Info.description                        = attachmentDescription;
        Info.width                              = m_Renderer->m_Device->GetSwapChainSupport().surfaceSize.width;
        Info.height                             = m_Renderer->m_Device->GetSwapChainSupport().surfaceSize.height;
 
        VkImageView& view = m_Renderer->m_RendererResourcePool->AccessResource(Info)->imageView;
 
        uint32_t layers = 1;
        switch (type)
        {
        case Spices::TextureType::Texture2DArray:
            layers = m_Renderer->m_RendererResourcePool->AccessRowResource(Info.name)->GetLayers();
            break;
        case Spices::TextureType::Texture2DCube:
            layers = 6;
            break;
        default:
            break;
        }
 
        uint32_t index = m_Renderer->m_Pass->AddAttachment(attachmentName, attachmentDescription, clearValue, layers, view);
 
        VkAttachmentReference                     attachmentRef{};
        attachmentRef.attachment                = index;
        attachmentRef.layout                    = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
 
        m_HandledRendererSubPass->AddColorAttachmentReference(attachmentRef, colorBlend);
        
        return *this;
    }

References Spices::RendererResourceCreateInfo::height, m_Renderer, Spices::RendererResourceCreateInfo::name, Spices::Texture2DArray, Spices::Texture2DCube, Spices::RendererResourceCreateInfo::type, and Spices::RendererResourceCreateInfo::width.