VkPhysicalDeviceRobustness2FeaturesEXT

The VkPhysicalDeviceRobustness2FeaturesEXT structure is defined as:

typedef struct VkPhysicalDeviceRobustness2FeaturesEXT {
    VkStructureType sType;
    void* pNext;
    VkBool32 robustBufferAccess2;
    VkBool32 robustImageAccess2;
    VkBool32 nullDescriptor;
} VkPhysicalDeviceRobustness2FeaturesEXT;

This structure describes the following features:

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• robustBufferAccess2 indicates whether buffer accesses are tightly bounds-checked against the range of the descriptor. Uniform buffers must be bounds-checked to the range of the descriptor, where the range is rounded up to a multiple of robustUniformBufferAccessSizeAlignment. Storage buffers must be bounds-checked to the range of the descriptor, where the range is rounded up to a multiple of robustStorageBufferAccessSizeAlignment. Out of bounds buffer loads will return zero values, and image load, sample, and atomic operations from texel buffers will have (0,0,1) values inserted for missing G, B, or A components based on the format.
• robustImageAccess2 indicates whether image accesses are tightly bounds-checked against the dimensions of the image view. Out of bounds image load, sample, and atomic operations from images will return zero values, with (0,0,1) values inserted for missing G, B, or A components based on the format.
• nullDescriptor indicates whether descriptors can be written with a VK_NULL_HANDLE resource or view, which are considered valid to access and act as if the descriptor were bound to nothing.

If the VkPhysicalDeviceRobustness2FeaturesEXT structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a VkDevice with any features described by VkPhysicalDeviceRobustness2FeaturesEXT, it must add an instance of the structure, with the desired feature members set to VK_TRUE, to the pNext chain of VkDeviceCreateInfo when creating the VkDevice.