diff --git a/include/Refresh.h b/include/Refresh.h
index 8a3a870..b1771ce 100644
--- a/include/Refresh.h
+++ b/include/Refresh.h
@@ -96,12 +96,6 @@ typedef enum Refresh_StoreOp
     REFRESH_STOREOP_DONT_CARE
 } Refresh_StoreOp;
 
-typedef enum Refresh_SetDataOptions
-{
-	REFRESH_SETDATAOPTIONS_IMMEDIATE,
-	REFRESH_SETDATAOPTIONS_DEFERRED
-} Refresh_SetDataOptions;
-
 typedef enum Refresh_ClearOptionsBits
 {
     REFRESH_CLEAROPTIONS_COLOR   = 0x00000001,
@@ -968,7 +962,6 @@ REFRESHAPI void Refresh_CopyTextureToBuffer(
  * offsetInBytes:	The starting offset of the buffer to write into.
  * data:			The client data to write into the buffer.
  * dataLength:		The length of data from the client buffer to write.
- * setDataOption:	Specifies how the buffer data will be copied.
  */
 REFRESHAPI void Refresh_SetBufferData(
 	Refresh_Device *device,
@@ -976,8 +969,7 @@ REFRESHAPI void Refresh_SetBufferData(
 	Refresh_Buffer *buffer,
 	uint32_t offsetInBytes,
 	void* data,
-	uint32_t dataLength,
-	Refresh_SetDataOptions setDataOption
+	uint32_t dataLength
 );
 
 /* Pushes vertex shader params to the device.
diff --git a/src/Refresh.c b/src/Refresh.c
index b4faea2..0f3c3e0 100644
--- a/src/Refresh.c
+++ b/src/Refresh.c
@@ -457,8 +457,7 @@ void Refresh_SetBufferData(
 	Refresh_Buffer *buffer,
 	uint32_t offsetInBytes,
 	void* data,
-	uint32_t dataLength,
-    Refresh_SetDataOptions setDataOption
+	uint32_t dataLength
 ) {
     NULL_RETURN(device);
     device->SetBufferData(
@@ -467,8 +466,7 @@ void Refresh_SetBufferData(
         buffer,
         offsetInBytes,
         data,
-        dataLength,
-        setDataOption
+        dataLength
     );
 }
 
diff --git a/src/Refresh_Driver.h b/src/Refresh_Driver.h
index 55cd6e1..2d54488 100644
--- a/src/Refresh_Driver.h
+++ b/src/Refresh_Driver.h
@@ -310,8 +310,7 @@ struct Refresh_Device
         Refresh_Buffer *buffer,
         uint32_t offsetInBytes,
         void* data,
-        uint32_t dataLength,
-        Refresh_SetDataOptions setDataOption
+        uint32_t dataLength
     );
 
     uint32_t(*PushVertexShaderUniforms)(
diff --git a/src/Refresh_Driver_Vulkan.c b/src/Refresh_Driver_Vulkan.c
index 463f2f8..7de9bf5 100644
--- a/src/Refresh_Driver_Vulkan.c
+++ b/src/Refresh_Driver_Vulkan.c
@@ -6332,6 +6332,12 @@ static void VULKAN_SetTextureData(
 	VkBufferImageCopy imageCopy;
 	uint8_t *stagingBufferPointer;
 
+	if (vulkanCommandBuffer->renderPassInProgress)
+	{
+		Refresh_LogError("Cannot perform buffer updates mid-render pass!");
+		return;
+	}
+
 	VULKAN_INTERNAL_MaybeExpandTransferBuffer(
 		renderer,
 		vulkanCommandBuffer,
@@ -6757,8 +6763,7 @@ static void VULKAN_SetBufferData(
 	Refresh_Buffer *buffer,
 	uint32_t offsetInBytes,
 	void* data,
-	uint32_t dataLength,
-	Refresh_SetDataOptions setDataOption
+	uint32_t dataLength
 ) {
 	VulkanRenderer* renderer = (VulkanRenderer*) driverData;
 	VulkanCommandBuffer* vulkanCommandBuffer = (VulkanCommandBuffer*) commandBuffer;
@@ -6767,72 +6772,56 @@ static void VULKAN_SetBufferData(
 	uint8_t* transferBufferPointer;
 	VkBufferCopy bufferCopy;
 
-	if (setDataOption == REFRESH_SETDATAOPTIONS_DEFERRED)
+	if (vulkanCommandBuffer->renderPassInProgress)
 	{
-		if (vulkanCommandBuffer->renderPassInProgress)
-		{
-			Refresh_LogError("Cannot perform deferred buffer updates mid-render pass!");
-			return;
-		}
-
-		VULKAN_INTERNAL_MaybeExpandTransferBuffer(
-			renderer,
-			vulkanCommandBuffer,
-			dataLength
-		);
-
-		transferBuffer = vulkanCommandBuffer->transferBuffers[vulkanCommandBuffer->transferBufferCount - 1];
-
-		transferBufferPointer =
-			transferBuffer->buffer->allocation->mapPointer +
-			transferBuffer->buffer->offset +
-			transferBuffer->offset;
-
-		SDL_memcpy(
-			transferBufferPointer,
-			data,
-			dataLength
-		);
-
-		VULKAN_INTERNAL_BufferMemoryBarrier(
-			renderer,
-			vulkanCommandBuffer->commandBuffer,
-			RESOURCE_ACCESS_TRANSFER_READ,
-			transferBuffer->buffer
-		);
-
-		VULKAN_INTERNAL_BufferMemoryBarrier(
-			renderer,
-			vulkanCommandBuffer->commandBuffer,
-			RESOURCE_ACCESS_TRANSFER_WRITE,
-			vulkanBuffer
-		);
-
-		bufferCopy.srcOffset = transferBuffer->offset;
-		bufferCopy.dstOffset = offsetInBytes;
-		bufferCopy.size = (VkDeviceSize) dataLength;
-
-		renderer->vkCmdCopyBuffer(
-			vulkanCommandBuffer->commandBuffer,
-			transferBuffer->buffer->buffer,
-			vulkanBuffer->buffer,
-			1,
-			&bufferCopy
-		);
-	}
-	else if (setDataOption == REFRESH_SETDATAOPTIONS_IMMEDIATE)
-	{
-		VULKAN_INTERNAL_SetBufferData(
-			vulkanBuffer,
-			offsetInBytes,
-			data,
-			dataLength
-		);
-	}
-	else
-	{
-		Refresh_LogError("Unrecognized Refresh_SetDataOptions value!");
+		Refresh_LogError("Cannot perform buffer updates mid-render pass!");
+		return;
 	}
+
+	VULKAN_INTERNAL_MaybeExpandTransferBuffer(
+		renderer,
+		vulkanCommandBuffer,
+		dataLength
+	);
+
+	transferBuffer = vulkanCommandBuffer->transferBuffers[vulkanCommandBuffer->transferBufferCount - 1];
+
+	transferBufferPointer =
+		transferBuffer->buffer->allocation->mapPointer +
+		transferBuffer->buffer->offset +
+		transferBuffer->offset;
+
+	SDL_memcpy(
+		transferBufferPointer,
+		data,
+		dataLength
+	);
+
+	VULKAN_INTERNAL_BufferMemoryBarrier(
+		renderer,
+		vulkanCommandBuffer->commandBuffer,
+		RESOURCE_ACCESS_TRANSFER_READ,
+		transferBuffer->buffer
+	);
+
+	VULKAN_INTERNAL_BufferMemoryBarrier(
+		renderer,
+		vulkanCommandBuffer->commandBuffer,
+		RESOURCE_ACCESS_TRANSFER_WRITE,
+		vulkanBuffer
+	);
+
+	bufferCopy.srcOffset = transferBuffer->offset;
+	bufferCopy.dstOffset = offsetInBytes;
+	bufferCopy.size = (VkDeviceSize) dataLength;
+
+	renderer->vkCmdCopyBuffer(
+		vulkanCommandBuffer->commandBuffer,
+		transferBuffer->buffer->buffer,
+		vulkanBuffer->buffer,
+		1,
+		&bufferCopy
+	);
 }
 
 /* FIXME: this should return uint64_t */