Creating a sampled image

Sampled images are used to read data from images (textures) inside shaders. Usually, they are used together with samplers. And to be able to use an image as a sampled image, it must be created with a VK_IMAGE_USAGE_SAMPLED_BIT usage.

How to do it...

1. Take the handle of a physical device stored in a variable of type VkPhysicalDevice named physical_device.
2. Select a format that will be used for an image. Initialize a variable of type VkFormat named format with the selected image format.

 

3. Create a variable of type VkFormatProperties named format_properties.
4. Call vkGetPhysicalDeviceFormatProperties( physical_device, format, &format_properties ), for which to provide the physical_device variable, the format variable, and a pointer to the format_properties variable.
5. Make sure the selected image format is suitable for a sampled image. Do that by checking whether the VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT bit of an optimalTilingFeatures member of the format_properties variable...