CreateBuffer()

template<typename T >

void Spices::Attribute< T >::CreateBuffer ( const std::string & name, VkBufferUsageFlags usage = 0 )

inline

Create Attribute Buffer.

Parameters

[in]	name	Buffer Debug Name.
[in]	usage	Buffer Usage.

Definition at line 80 of file Attribute.h.

    {
        SPICES_PROFILE_ZONE;
 
        VkDeviceSize bufferSize = sizeof((*attributes)[0]) * attributes->size();
 
        if (bufferSize > 0)
        {
            VulkanBuffer stagingBuffer(
                VulkanRenderBackend::GetState()      ,
                "StagingBuffer"                      ,
                bufferSize                           ,
                VK_BUFFER_USAGE_TRANSFER_SRC_BIT     ,
                VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT  |
                VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
            );
 
            buffer = std::make_shared<VulkanBuffer>(
                VulkanRenderBackend::GetState()           ,
                name                                      ,
                bufferSize                                ,
                VK_BUFFER_USAGE_TRANSFER_DST_BIT          |
                VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT |
                usage                                     ,
                VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
            );
 
            stagingBuffer.WriteToBuffer(attributes->data());
            buffer->CopyBuffer(stagingBuffer.Get(), buffer->Get(), bufferSize);
        }
        else
        {
            bufferSize = 16;
 
            VulkanBuffer stagingBuffer(
                VulkanRenderBackend::GetState()      ,
                "StagingBuffer"                      ,
                bufferSize                           ,
                VK_BUFFER_USAGE_TRANSFER_SRC_BIT     ,
                VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT  |
                VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
            );
 
            buffer = std::make_shared<VulkanBuffer>(
                VulkanRenderBackend::GetState()           ,
                name                                      ,
                bufferSize                                ,
                VK_BUFFER_USAGE_TRANSFER_DST_BIT          |
                VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT |
                usage                                     ,
                VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
            );
 
            glm::vec4 empty = glm::vec4(0.0f);
            stagingBuffer.WriteToBuffer(&empty);
            buffer->CopyBuffer(stagingBuffer.Get(), buffer->Get(), bufferSize);
        }
    }