Structure specifying parameters of a newly created optical flow session.

Valid Usage

• width must be greater than or equal to VkPhysicalDeviceOpticalFlowPropertiesNV::minWidth and less than or equal to VkPhysicalDeviceOpticalFlowPropertiesNV::maxWidth
• height must be greater than or equal to VkPhysicalDeviceOpticalFlowPropertiesNV::minHeight and less than or equal to VkPhysicalDeviceOpticalFlowPropertiesNV::maxHeight
• imageFormat must be one of the formats returned by GetPhysicalDeviceOpticalFlowImageFormatsNV for OPTICAL_FLOW_USAGE_INPUT_BIT_NV
• flowVectorFormat must be one of the formats returned by GetPhysicalDeviceOpticalFlowImageFormatsNV for OPTICAL_FLOW_USAGE_OUTPUT_BIT_NV
• costFormat must be one of the formats returned by GetPhysicalDeviceOpticalFlowImageFormatsNV for OPTICAL_FLOW_USAGE_COST_BIT_NV if OPTICAL_FLOW_SESSION_CREATE_ENABLE_COST_BIT_NV is set in flags
• outputGridSize must be exactly one of the bits reported in VkPhysicalDeviceOpticalFlowPropertiesNV::supportedOutputGridSizes
• hintGridSize must be exactly one of the bits reported in VkPhysicalDeviceOpticalFlowPropertiesNV::supportedHintGridSizes if OPTICAL_FLOW_SESSION_CREATE_ENABLE_HINT_BIT_NV is set in flags
• OPTICAL_FLOW_SESSION_CREATE_ENABLE_HINT_BIT_NV must not be set in flags if VkPhysicalDeviceOpticalFlowPropertiesNV::hintSupported is FALSE
• OPTICAL_FLOW_SESSION_CREATE_ENABLE_COST_BIT_NV must not be set in flags if VkPhysicalDeviceOpticalFlowPropertiesNV::costSupported is FALSE
• OPTICAL_FLOW_SESSION_CREATE_ENABLE_GLOBAL_FLOW_BIT_NV must not be set in flags if VkPhysicalDeviceOpticalFlowPropertiesNV::globalFlowSupported is FALSE
• OPTICAL_FLOW_SESSION_CREATE_ALLOW_REGIONS_BIT_NV must not be set in flags if VkPhysicalDeviceOpticalFlowPropertiesNV::maxNumRegionsOfInterest is 0
• OPTICAL_FLOW_SESSION_CREATE_BOTH_DIRECTIONS_BIT_NV must not be set in flags if VkPhysicalDeviceOpticalFlowPropertiesNV::bidirectionalFlowSupported is FALSE

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_OPTICAL_FLOW_SESSION_CREATE_INFO_NV
• pNext must be NULL or a pointer to a valid instance of VkOpticalFlowSessionCreatePrivateDataInfoNV
• The sType value of each struct in the pNext chain must be unique
• imageFormat must be a valid VkFormat value
• flowVectorFormat must be a valid VkFormat value
• If costFormat is not 0, costFormat must be a valid VkFormat value
• outputGridSize must be a valid combination of VkOpticalFlowGridSizeFlagBitsNV values
• outputGridSize must not be 0
• hintGridSize must be a valid combination of VkOpticalFlowGridSizeFlagBitsNV values
• If performanceLevel is not 0, performanceLevel must be a valid VkOpticalFlowPerformanceLevelNV value
• flags must be a valid combination of VkOpticalFlowSessionCreateFlagBitsNV values

See Also

CreateOpticalFlowSessionNV

Layout

struct VkOpticalFlowSessionCreateInfoNV {
    VkStructureType sType;
    void * pNext;
    uint32_t width;
    uint32_t height;
    VkFormat imageFormat;
    VkFormat flowVectorFormat;
    VkFormat costFormat;
    VkOpticalFlowGridSizeFlagsNV outputGridSize;
    VkOpticalFlowGridSizeFlagsNV hintGridSize;
    VkOpticalFlowPerformanceLevelNV performanceLevel;
    VkOpticalFlowSessionCreateFlagsNV flags;
}