add msaa support for depth textures

This change makes Refresh behave more like FNA and other rendering APIs, where user-side textures have a sample count instead of generating MSAA RTs on the fly.

This should theoretically reduce memory consumption since subresource views no longer generate their own MSAA textures. Instead, each texture with a sample count > 1 now has a reference to an MSAA texture baked into the root texture itself, so views can just reference that.

This also simplifies VulkanRenderTarget significantly, to the point where it's just a wrapper around VkImageView. We could probably remove the abstraction entirely at this point.

Since VkRenderPass objects still require knowing the sample count, we can use the first bound texture's sample count. This means users only have to specify sample count in two places -- the graphics pipeline, and the texture. Easy enough.

I also noticed and fixed a bug with clear values with MSAA levels > 1.

Co-authored-by: Caleb Cornett <caleb.cornett@outlook.com>
Reviewed-on: MoonsideGames/Refresh#37
Co-authored-by: TheSpydog <thespydog@noreply.example.org>
Co-committed-by: TheSpydog <thespydog@noreply.example.org>

include/Refresh.h

@@ -463,6 +463,7 @@ typedef struct Refresh_TextureCreateInfo
 	uint32_t depth;
 	uint8_t isCube;
 	uint32_t levelCount;
+	Refresh_SampleCount sampleCount;
 	Refresh_TextureFormat format;
 	Refresh_TextureUsageFlags usageFlags;
 } Refresh_TextureCreateInfo;
@@ -551,7 +552,6 @@ typedef struct Refresh_ColorAttachmentInfo
 	uint32_t depth;
 	uint32_t layer;
 	uint32_t level;
-	Refresh_SampleCount sampleCount;
 	Refresh_Vec4 clearColor; /* Can be ignored by RenderPass */
 	Refresh_LoadOp loadOp;
 	Refresh_StoreOp storeOp;

src/Refresh_Driver_Vulkan.c

@@ -758,20 +758,21 @@ typedef struct VulkanTexture
 	uint32_t depth;
 	uint32_t layerCount;
 	uint32_t levelCount;
+	Refresh_SampleCount sampleCount;
 	VkFormat format;
 	VulkanResourceAccessType resourceAccessType;
 	VkImageUsageFlags usageFlags;
 
 	VkImageAspectFlags aspectFlags;
 
+	struct VulkanTexture *msaaTex;
+
 	SDL_atomic_t referenceCount;
 } VulkanTexture;
 
 typedef struct VulkanRenderTarget
 {
 	VkImageView view;
-	VulkanTexture *multisampleTexture;
-	VkSampleCountFlags multisampleCount;
 } VulkanRenderTarget;
 
 typedef struct VulkanFramebuffer
@@ -1200,11 +1201,10 @@ static inline void FramebufferHashArray_Remove(
 
 typedef struct RenderTargetHash
 {
-	Refresh_Texture *texture;
+	VulkanTexture *texture;
 	uint32_t depth;
 	uint32_t layer;
 	uint32_t level;
-	Refresh_SampleCount sampleCount;
 } RenderTargetHash;
 
 typedef struct RenderTargetHashMap
@@ -1244,11 +1244,6 @@ static inline uint8_t RenderTargetHash_Compare(
 		return 0;
 	}
 
-	if (a->sampleCount != b->sampleCount)
-	{
-		return 0;
-	}
-
 	return 1;
 }
 
@@ -3068,6 +3063,15 @@ static void VULKAN_INTERNAL_DestroyTexture(
 		NULL
 	);
 
+	/* destroy the msaa texture, if there is one */
+	if (texture->msaaTex != NULL)
+	{
+		VULKAN_INTERNAL_DestroyTexture(
+			renderer,
+			texture->msaaTex
+		);
+	}
+
 	SDL_free(texture);
 }
 
@@ -3086,18 +3090,6 @@ static void VULKAN_INTERNAL_DestroyRenderTarget(
 		NULL
 	);
 
-	/* The texture is not owned by the RenderTarget
-	 * so we don't free it here
-	 * But the multisampleTexture is!
-	 */
-	if (renderTarget->multisampleTexture != NULL)
-	{
-		VULKAN_INTERNAL_DestroyTexture(
-			renderer,
-			renderTarget->multisampleTexture
-		);
-	}
-
 	SDL_free(renderTarget);
 }
 
@@ -4605,11 +4597,13 @@ static uint8_t VULKAN_INTERNAL_CreateSwapchain(
 		swapchainData->textures[i].isCube = 0;
 		swapchainData->textures[i].layerCount = 1;
 		swapchainData->textures[i].levelCount = 1;
+		swapchainData->textures[i].sampleCount = REFRESH_SAMPLECOUNT_1;
 		swapchainData->textures[i].usageFlags =
 			VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 			VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 		swapchainData->textures[i].aspectFlags = VK_IMAGE_ASPECT_COLOR_BIT;
 		swapchainData->textures[i].resourceAccessType = RESOURCE_ACCESS_NONE;
+		swapchainData->textures[i].msaaTex = NULL;
 	}
 
 	SDL_stack_free(swapchainImages);
@@ -5217,8 +5211,8 @@ static VulkanTexture* VULKAN_INTERNAL_CreateTexture(
 	uint32_t height,
 	uint32_t depth,
 	uint32_t isCube,
-	VkSampleCountFlagBits samples,
 	uint32_t levelCount,
+	Refresh_SampleCount sampleCount,
 	VkFormat format,
 	VkImageAspectFlags aspectMask,
 	VkImageUsageFlags imageUsageFlags
@@ -5261,7 +5255,7 @@ static VulkanTexture* VULKAN_INTERNAL_CreateTexture(
 	imageCreateInfo.extent.depth = depth;
 	imageCreateInfo.mipLevels = levelCount;
 	imageCreateInfo.arrayLayers = layerCount;
-	imageCreateInfo.samples = samples;
+	imageCreateInfo.samples = RefreshToVK_SampleCount[sampleCount];
 	imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
 	imageCreateInfo.usage = imageUsageFlags;
 	imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
@@ -5388,9 +5382,11 @@ static VulkanTexture* VULKAN_INTERNAL_CreateTexture(
 	texture->format = format;
 	texture->levelCount = levelCount;
 	texture->layerCount = layerCount;
+	texture->sampleCount = sampleCount;
 	texture->resourceAccessType = RESOURCE_ACCESS_NONE;
 	texture->usageFlags = imageUsageFlags;
 	texture->aspectFlags = aspectMask;
+	texture->msaaTex = NULL;
 
 	SDL_AtomicSet(&texture->referenceCount, 0);
 
@@ -5399,27 +5395,22 @@ static VulkanTexture* VULKAN_INTERNAL_CreateTexture(
 
 static VulkanRenderTarget* VULKAN_INTERNAL_CreateRenderTarget(
 	VulkanRenderer *renderer,
-	Refresh_Texture *texture,
+	VulkanTexture *texture,
 	uint32_t depth,
 	uint32_t layer,
-	uint32_t level,
-	Refresh_SampleCount multisampleCount
+	uint32_t level
 ) {
 	VkResult vulkanResult;
 	VulkanRenderTarget *renderTarget = (VulkanRenderTarget*) SDL_malloc(sizeof(VulkanRenderTarget));
-	VulkanTexture *vulkanTexture = (VulkanTexture*) texture;
 	VkImageViewCreateInfo imageViewCreateInfo;
 	VkComponentMapping swizzle = IDENTITY_SWIZZLE;
 	VkImageAspectFlags aspectFlags = 0;
 
-	renderTarget->multisampleTexture = NULL;
-	renderTarget->multisampleCount = 1;
-
-	if (IsDepthFormat(vulkanTexture->format))
+	if (IsDepthFormat(texture->format))
 	{
 		aspectFlags |= VK_IMAGE_ASPECT_DEPTH_BIT;
 
-		if (IsStencilFormat(vulkanTexture->format))
+		if (IsStencilFormat(texture->format))
 		{
 			aspectFlags |= VK_IMAGE_ASPECT_STENCIL_BIT;
 		}
@@ -5429,48 +5420,22 @@ static VulkanRenderTarget* VULKAN_INTERNAL_CreateRenderTarget(
 		aspectFlags |= VK_IMAGE_ASPECT_COLOR_BIT;
 	}
 
-	/* create resolve target for multisample */
-	if (multisampleCount > REFRESH_SAMPLECOUNT_1)
-	{
-		/* Find a compatible sample count to use */
-		multisampleCount = VULKAN_INTERNAL_GetMaxMultiSampleCount(
-			renderer,
-			multisampleCount
-		);
-
-		renderTarget->multisampleTexture =
-			VULKAN_INTERNAL_CreateTexture(
-				renderer,
-				vulkanTexture->dimensions.width,
-				vulkanTexture->dimensions.height,
-				1,
-				0,
-				RefreshToVK_SampleCount[multisampleCount],
-				1,
-				vulkanTexture->format,
-				aspectFlags,
-				VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT
-			);
-
-		renderTarget->multisampleCount = RefreshToVK_SampleCount[multisampleCount];
-	}
-
 	/* create framebuffer compatible views for RenderTarget */
 	imageViewCreateInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
 	imageViewCreateInfo.pNext = NULL;
 	imageViewCreateInfo.flags = 0;
-	imageViewCreateInfo.image = vulkanTexture->image;
-	imageViewCreateInfo.format = vulkanTexture->format;
+	imageViewCreateInfo.image = texture->image;
+	imageViewCreateInfo.format = texture->format;
 	imageViewCreateInfo.components = swizzle;
 	imageViewCreateInfo.subresourceRange.aspectMask = aspectFlags;
 	imageViewCreateInfo.subresourceRange.baseMipLevel = level;
 	imageViewCreateInfo.subresourceRange.levelCount = 1;
 	imageViewCreateInfo.subresourceRange.baseArrayLayer = 0;
-	if (vulkanTexture->is3D)
+	if (texture->is3D)
 	{
 		imageViewCreateInfo.subresourceRange.baseArrayLayer = depth;
 	}
-	else if (vulkanTexture->isCube)
+	else if (texture->isCube)
 	{
 		imageViewCreateInfo.subresourceRange.baseArrayLayer = layer;
 	}
@@ -5499,11 +5464,10 @@ static VulkanRenderTarget* VULKAN_INTERNAL_CreateRenderTarget(
 
 static VulkanRenderTarget* VULKAN_INTERNAL_FetchRenderTarget(
 	VulkanRenderer *renderer,
-	Refresh_Texture *texture,
+	VulkanTexture *texture,
 	uint32_t depth,
 	uint32_t layer,
-	uint32_t level,
-	Refresh_SampleCount sampleCount
+	uint32_t level
 ) {
 	RenderTargetHash hash;
 	VulkanRenderTarget *renderTarget;
@@ -5512,7 +5476,6 @@ static VulkanRenderTarget* VULKAN_INTERNAL_FetchRenderTarget(
 	hash.depth = depth;
 	hash.layer = layer;
 	hash.level = level;
-	hash.sampleCount = sampleCount;
 
 	SDL_LockMutex(renderer->renderTargetFetchLock);
 
@@ -5528,8 +5491,7 @@ static VulkanRenderTarget* VULKAN_INTERNAL_FetchRenderTarget(
 			texture,
 			depth,
 			layer,
-			level,
-			sampleCount
+			level
 		);
 
 		RenderTargetHash_Insert(
@@ -5560,31 +5522,21 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 	VkSubpassDescription subpass;
 	VkRenderPass renderPass;
 	uint32_t i;
-	uint8_t multisampling = 0;
 
 	uint32_t attachmentDescriptionCount = 0;
 	uint32_t colorAttachmentReferenceCount = 0;
 	uint32_t resolveReferenceCount = 0;
 
-	VulkanRenderTarget *renderTarget;
 	VulkanTexture *texture;
+	VulkanTexture *msaaTexture = NULL;
 
 	for (i = 0; i < colorAttachmentCount; i += 1)
 	{
 		texture = (VulkanTexture*) colorAttachmentInfos[i].texture;
 
-		renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
-			renderer,
-			colorAttachmentInfos[i].texture,
-			colorAttachmentInfos[i].depth,
-			colorAttachmentInfos[i].layer,
-			colorAttachmentInfos[i].level,
-			colorAttachmentInfos[i].sampleCount
-		);
-
-		if (renderTarget->multisampleCount > VK_SAMPLE_COUNT_1_BIT)
+		if (texture->msaaTex != NULL)
 		{
-			multisampling = 1;
+			msaaTexture = texture->msaaTex;
 
 			/* Transition the multisample attachment */
 
@@ -5594,12 +5546,12 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 				RESOURCE_ACCESS_COLOR_ATTACHMENT_WRITE,
 				VK_IMAGE_ASPECT_COLOR_BIT,
 				0,
-				renderTarget->multisampleTexture->layerCount,
+				msaaTexture->layerCount,
 				0,
-				renderTarget->multisampleTexture->levelCount,
+				msaaTexture->levelCount,
 				0,
-				renderTarget->multisampleTexture->image,
-				&renderTarget->multisampleTexture->resourceAccessType
+				msaaTexture->image,
+				&msaaTexture->resourceAccessType
 			);
 
 			/* Resolve attachment and multisample attachment */
@@ -5631,8 +5583,10 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 			resolveReferenceCount += 1;
 
 			attachmentDescriptions[attachmentDescriptionCount].flags = 0;
-			attachmentDescriptions[attachmentDescriptionCount].format = texture->format;
-			attachmentDescriptions[attachmentDescriptionCount].samples = renderTarget->multisampleCount;
+			attachmentDescriptions[attachmentDescriptionCount].format = msaaTexture->format;
+			attachmentDescriptions[attachmentDescriptionCount].samples = RefreshToVK_SampleCount[
+				msaaTexture->sampleCount
+			];
 			attachmentDescriptions[attachmentDescriptionCount].loadOp = RefreshToVK_LoadOp[
 				colorAttachmentInfos[i].loadOp
 			];
@@ -5701,21 +5655,13 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 	}
 	else
 	{
-		renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
-			renderer,
-			depthStencilAttachmentInfo->texture,
-			depthStencilAttachmentInfo->depth,
-			depthStencilAttachmentInfo->layer,
-			depthStencilAttachmentInfo->level,
-			REFRESH_SAMPLECOUNT_1
-		);
-
 		texture = (VulkanTexture*) depthStencilAttachmentInfo->texture;
 
 		attachmentDescriptions[attachmentDescriptionCount].flags = 0;
 		attachmentDescriptions[attachmentDescriptionCount].format = texture->format;
-		attachmentDescriptions[attachmentDescriptionCount].samples =
-			VK_SAMPLE_COUNT_1_BIT;
+		attachmentDescriptions[attachmentDescriptionCount].samples = RefreshToVK_SampleCount[
+			texture->sampleCount
+		];
 		attachmentDescriptions[attachmentDescriptionCount].loadOp = RefreshToVK_LoadOp[
 			depthStencilAttachmentInfo->loadOp
 		];
@@ -5744,7 +5690,7 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 		attachmentDescriptionCount += 1;
 	}
 
-	if (multisampling)
+	if (msaaTexture != NULL)
 	{
 		subpass.pResolveAttachments = resolveReferences;
 	}
@@ -5897,8 +5843,9 @@ static VkRenderPass VULKAN_INTERNAL_CreateTransientRenderPass(
 			renderer,
 			attachmentInfo.depthStencilFormat
 		);
-		attachmentDescriptions[attachmentDescriptionCount].samples =
-			VK_SAMPLE_COUNT_1_BIT; /* FIXME: do these take multisamples? */
+		attachmentDescriptions[attachmentDescriptionCount].samples = RefreshToVK_SampleCount[
+			sampleCount
+		];
 		attachmentDescriptions[attachmentDescriptionCount].loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
 		attachmentDescriptions[attachmentDescriptionCount].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
 		attachmentDescriptions[attachmentDescriptionCount].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
@@ -6600,9 +6547,11 @@ static Refresh_Texture* VULKAN_CreateTexture(
 		VK_IMAGE_USAGE_TRANSFER_SRC_BIT
 	);
 	VkImageAspectFlags imageAspectFlags;
+	uint8_t isDepthFormat = IsRefreshDepthFormat(textureCreateInfo->format);
 	VkFormat format;
+	VulkanTexture *result;
 
-	if (IsRefreshDepthFormat(textureCreateInfo->format))
+	if (isDepthFormat)
 	{
 		format = RefreshToVK_DepthFormat(renderer, textureCreateInfo->format);
 	}
@@ -6631,7 +6580,7 @@ static Refresh_Texture* VULKAN_CreateTexture(
 		imageUsageFlags |= VK_IMAGE_USAGE_STORAGE_BIT;
 	}
 
-	if (IsDepthFormat(format))
+	if (isDepthFormat)
 	{
 		imageAspectFlags = VK_IMAGE_ASPECT_DEPTH_BIT;
 
@@ -6645,18 +6594,41 @@ static Refresh_Texture* VULKAN_CreateTexture(
 		imageAspectFlags = VK_IMAGE_ASPECT_COLOR_BIT;
 	}
 
-	return (Refresh_Texture*) VULKAN_INTERNAL_CreateTexture(
+	result = VULKAN_INTERNAL_CreateTexture(
 		renderer,
 		textureCreateInfo->width,
 		textureCreateInfo->height,
 		textureCreateInfo->depth,
 		textureCreateInfo->isCube,
-		VK_SAMPLE_COUNT_1_BIT,
 		textureCreateInfo->levelCount,
+		isDepthFormat ?
+			textureCreateInfo->sampleCount : /* depth textures do not have a separate msaaTex */
+			REFRESH_SAMPLECOUNT_1,
 		format,
 		imageAspectFlags,
 		imageUsageFlags
 	);
+
+	/* create the MSAA texture for color attachments, if needed */
+	if (	result != NULL &&
+		!isDepthFormat &&
+		textureCreateInfo->sampleCount > REFRESH_SAMPLECOUNT_1	)
+	{
+		result->msaaTex = VULKAN_INTERNAL_CreateTexture(
+			renderer,
+			textureCreateInfo->width,
+			textureCreateInfo->height,
+			textureCreateInfo->depth,
+			textureCreateInfo->isCube,
+			textureCreateInfo->levelCount,
+			textureCreateInfo->sampleCount,
+			format,
+			imageAspectFlags,
+			imageUsageFlags
+		);
+	}
+
+	return (Refresh_Texture*) result;
 }
 
 static Refresh_Buffer* VULKAN_CreateBuffer(
@@ -7989,6 +7961,7 @@ static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(
 	VkRenderPass renderPass;
 	RenderPassHash hash;
 	uint32_t i;
+	VulkanTexture *texture;
 
 	SDL_LockMutex(renderer->renderPassFetchLock);
 
@@ -8000,9 +7973,15 @@ static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(
 		hash.colorTargetDescriptions[i].storeOp = colorAttachmentInfos[i].storeOp;
 	}
 
-	hash.colorAttachmentSampleCount = (colorAttachmentCount > 0) ?
-		colorAttachmentInfos[0].sampleCount :
-		REFRESH_SAMPLECOUNT_1;
+	hash.colorAttachmentSampleCount = REFRESH_SAMPLECOUNT_1;
+	if (colorAttachmentCount > 0)
+	{
+		texture = (VulkanTexture*) colorAttachmentInfos[0].texture;
+		if (texture->msaaTex != NULL)
+		{
+			hash.colorAttachmentSampleCount = texture->msaaTex->sampleCount;
+		}
+	}
 
 	hash.colorAttachmentCount = colorAttachmentCount;
 
@@ -8069,6 +8048,7 @@ static VulkanFramebuffer* VULKAN_INTERNAL_FetchFramebuffer(
 	VkResult result;
 	VkImageView imageViewAttachments[2 * MAX_COLOR_TARGET_BINDINGS + 1];
 	FramebufferHash hash;
+	VulkanTexture *texture;
 	VulkanRenderTarget *renderTarget;
 	uint32_t attachmentCount = 0;
 	uint32_t i;
@@ -8085,23 +8065,32 @@ static VulkanFramebuffer* VULKAN_INTERNAL_FetchFramebuffer(
 
 	for (i = 0; i < colorAttachmentCount; i += 1)
 	{
+		texture = (VulkanTexture*) colorAttachmentInfos[i].texture;
+
 		renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
 			renderer,
-			colorAttachmentInfos[i].texture,
+			texture,
 			colorAttachmentInfos[i].depth,
 			colorAttachmentInfos[i].layer,
-			colorAttachmentInfos[i].level,
-			colorAttachmentInfos[i].sampleCount
+			colorAttachmentInfos[i].level
 		);
 
 		hash.colorAttachmentViews[i] = (
 			renderTarget->view
 		);
 
-		if (renderTarget->multisampleTexture != NULL)
+		if (texture->msaaTex != NULL)
 		{
+			renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
+				renderer,
+				texture->msaaTex,
+				colorAttachmentInfos[i].depth,
+				colorAttachmentInfos[i].layer,
+				colorAttachmentInfos[i].level
+			);
+
 			hash.colorMultiSampleAttachmentViews[i] = (
-				renderTarget->multisampleTexture->view
+				renderTarget->view
 			);
 		}
 	}
@@ -8112,13 +8101,13 @@ static VulkanFramebuffer* VULKAN_INTERNAL_FetchFramebuffer(
 	}
 	else
 	{
+		texture = (VulkanTexture*) depthStencilAttachmentInfo->texture;
 		renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
 			renderer,
-			depthStencilAttachmentInfo->texture,
+			texture,
 			depthStencilAttachmentInfo->depth,
 			depthStencilAttachmentInfo->layer,
-			depthStencilAttachmentInfo->level,
-			REFRESH_SAMPLECOUNT_1
+			depthStencilAttachmentInfo->level
 		);
 		hash.depthStencilAttachmentView = renderTarget->view;
 	}
@@ -8145,13 +8134,14 @@ static VulkanFramebuffer* VULKAN_INTERNAL_FetchFramebuffer(
 
 	for (i = 0; i < colorAttachmentCount; i += 1)
 	{
+		texture = (VulkanTexture*) colorAttachmentInfos[i].texture;
+
 		renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
 			renderer,
-			colorAttachmentInfos[i].texture,
+			texture,
 			colorAttachmentInfos[i].depth,
 			colorAttachmentInfos[i].layer,
-			colorAttachmentInfos[i].level,
-			colorAttachmentInfos[i].sampleCount
+			colorAttachmentInfos[i].level
 		);
 
 		imageViewAttachments[attachmentCount] =
@@ -8159,10 +8149,18 @@ static VulkanFramebuffer* VULKAN_INTERNAL_FetchFramebuffer(
 
 		attachmentCount += 1;
 
-		if (renderTarget->multisampleTexture != NULL)
+		if (texture->msaaTex != NULL)
 		{
+			renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
+				renderer,
+				texture->msaaTex,
+				colorAttachmentInfos[i].depth,
+				colorAttachmentInfos[i].layer,
+				colorAttachmentInfos[i].level
+			);
+
 			imageViewAttachments[attachmentCount] =
-				renderTarget->multisampleTexture->view;
+				renderTarget->view;
 
 			attachmentCount += 1;
 		}
@@ -8170,13 +8168,13 @@ static VulkanFramebuffer* VULKAN_INTERNAL_FetchFramebuffer(
 
 	if (depthStencilAttachmentInfo != NULL)
 	{
+		texture = (VulkanTexture*) depthStencilAttachmentInfo->texture;
 		renderTarget = VULKAN_INTERNAL_FetchRenderTarget(
 			renderer,
-			depthStencilAttachmentInfo->texture,
+			texture,
 			depthStencilAttachmentInfo->depth,
 			depthStencilAttachmentInfo->layer,
-			depthStencilAttachmentInfo->level,
-			REFRESH_SAMPLECOUNT_1
+			depthStencilAttachmentInfo->level
 		);
 
 		imageViewAttachments[attachmentCount] = renderTarget->view;
@@ -8303,6 +8301,7 @@ static void VULKAN_BeginRenderPass(
 	VkClearValue *clearValues;
 	uint32_t clearCount = colorAttachmentCount;
 	uint32_t multisampleAttachmentCount = 0;
+	uint32_t totalColorAttachmentCount = 0;
 	uint32_t i;
 	VkImageAspectFlags depthAspectFlags;
 	Refresh_Viewport defaultViewport;
@@ -8388,7 +8387,7 @@ static void VULKAN_BeginRenderPass(
 			&texture->resourceAccessType
 		);
 
-		if (colorAttachmentInfos[i].sampleCount > REFRESH_SAMPLECOUNT_1)
+		if (texture->msaaTex != NULL)
 		{
 			clearCount += 1;
 			multisampleAttachmentCount += 1;
@@ -8402,9 +8401,8 @@ static void VULKAN_BeginRenderPass(
 		texture = (VulkanTexture*) depthStencilAttachmentInfo->texture;
 		depthAspectFlags = VK_IMAGE_ASPECT_DEPTH_BIT;
 
-		if (IsStencilFormat(
-			texture->format
-		)) {
+		if (IsStencilFormat(texture->format))
+		{
 			depthAspectFlags |= VK_IMAGE_ASPECT_STENCIL_BIT;
 		}
 
@@ -8431,28 +8429,31 @@ static void VULKAN_BeginRenderPass(
 
 	clearValues = SDL_stack_alloc(VkClearValue, clearCount);
 
-	for (i = 0; i < colorAttachmentCount + multisampleAttachmentCount; i += 1)
+	totalColorAttachmentCount = colorAttachmentCount + multisampleAttachmentCount;
+
+	for (i = 0; i < totalColorAttachmentCount; i += 1)
 	{
 		clearValues[i].color.float32[0] = colorAttachmentInfos[i].clearColor.x;
 		clearValues[i].color.float32[1] = colorAttachmentInfos[i].clearColor.y;
 		clearValues[i].color.float32[2] = colorAttachmentInfos[i].clearColor.z;
 		clearValues[i].color.float32[3] = colorAttachmentInfos[i].clearColor.w;
 
-		if (colorAttachmentInfos[i].sampleCount > REFRESH_SAMPLECOUNT_1)
+		texture = (VulkanTexture*) colorAttachmentInfos[i].texture;
+		if (texture->msaaTex != NULL)
 		{
+			clearValues[i+1].color.float32[0] = colorAttachmentInfos[i].clearColor.x;
+			clearValues[i+1].color.float32[1] = colorAttachmentInfos[i].clearColor.y;
+			clearValues[i+1].color.float32[2] = colorAttachmentInfos[i].clearColor.z;
+			clearValues[i+1].color.float32[3] = colorAttachmentInfos[i].clearColor.w;
 			i += 1;
-			clearValues[i].color.float32[0] = colorAttachmentInfos[i].clearColor.x;
-			clearValues[i].color.float32[1] = colorAttachmentInfos[i].clearColor.y;
-			clearValues[i].color.float32[2] = colorAttachmentInfos[i].clearColor.z;
-			clearValues[i].color.float32[3] = colorAttachmentInfos[i].clearColor.w;
 		}
 	}
 
 	if (depthStencilAttachmentInfo != NULL)
 	{
-		clearValues[colorAttachmentCount].depthStencil.depth =
+		clearValues[totalColorAttachmentCount].depthStencil.depth =
 			depthStencilAttachmentInfo->depthStencilClearValue.depth;
-		clearValues[colorAttachmentCount].depthStencil.stencil =
+		clearValues[totalColorAttachmentCount].depthStencil.stencil =
 			depthStencilAttachmentInfo->depthStencilClearValue.stencil;
 	}