## C.16. VK_KHR_sampler_mirror_clamp_to_edge

Name String
VK_KHR_sampler_mirror_clamp_to_edge
Extension Type
Device extension
Registered Extension Number
15
Status
Final
16/02/2016
Revision
1
Dependencies
• This extension is written against version 1.0. of the Vulkan API.
Contributors
• Tobias Hector, Imagination Technologies
Contacts

VK_KHR_sampler_mirror_clamp_to_edge extends the set of sampler address modes to include an additional mode (VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE) that effectively uses a texture map twice as large as the original image in which the additional half of the new image is a mirror image of the original image.

This new mode relaxes the need to generate images whose opposite edges match by using the original image to generate a matching “mirror image”. This mode allows the texture to be mirrored only once in the negative s, t, and r directions.

### C.16.1. New Enum Constants

• Extending VkSamplerAddressMode:

• VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE

### C.16.2. Example

Creating a sampler with the new address mode in each dimension

    VkSamplerCreateInfo createInfo =
{
VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO // sType
// Other members set to application-desired values
};

&sampler);