VkPhysicalDeviceTextureCompressionASTC3DFeaturesEXT

The VkPhysicalDeviceTextureCompressionASTC3DFeaturesEXT structure is defined as:

typedef struct VkPhysicalDeviceTextureCompressionASTC3DFeaturesEXT {
    VkStructureType sType;
    void* pNext;
    VkBool32 textureCompressionASTC_3D;
} VkPhysicalDeviceTextureCompressionASTC3DFeaturesEXT;

pub struct PhysicalDeviceTextureCompressionASTC3DFeaturesEXT {
    s_type: vk::StructureType,
    p_next: *mut c_void,
    texture_compression_astc_3d: vk::Bool32,
}

This structure describes the following feature:

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• FEATURES TEXTURECOMPRESSIONASTC\_3D
  textureCompressionASTC_3D indicates whether all of the ASTC 3D compressed texture formats are supported. If this feature is enabled, then the VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT, VK_FORMAT_FEATURE_BLIT_SRC_BIT and VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT features must be supported in optimalTilingFeatures for the following formats:
  • VK_FORMAT_ASTC_3x3x3_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_3x3x3_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_3x3x3_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_4x3x3_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_4x3x3_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_4x3x3_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_4x4x3_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_4x4x3_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_4x4x3_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_4x4x4_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_4x4x4_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_4x4x4_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_5x4x4_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_5x4x4_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_5x4x4_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_5x5x4_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_5x5x4_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_5x5x4_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_5x5x5_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_5x5x5_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_5x5x5_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_6x5x5_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_6x5x5_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_6x5x5_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_6x6x5_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_6x6x5_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_6x6x5_SFLOAT_BLOCK_EXT
  • VK_FORMAT_ASTC_6x6x6_UNORM_BLOCK_EXT
  • VK_FORMAT_ASTC_6x6x6_SRGB_BLOCK_EXT
  • VK_FORMAT_ASTC_6x6x6_SFLOAT_BLOCK_EXT

If the VkPhysicalDeviceTextureCompressionASTC3DFeatures 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 VkPhysicalDeviceTextureCompressionASTC3DFeatures, 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.