vkCmdBindTransformFeedbackBuffersEXT
To bind transform feedback buffers to a command buffer for use in subsequent drawing commands, call:
void vkCmdBindTransformFeedbackBuffersEXT(
VkCommandBuffer commandBuffer,
uint32_t firstBinding,
uint32_t bindingCount,
const VkBuffer* pBuffers,
const VkDeviceSize* pOffsets,
const VkDeviceSize* pSizes);
commandBufferis the command buffer into which the command is recorded.firstBindingis the index of the first transform feedback binding whose state is updated by the command.bindingCountis the number of transform feedback bindings whose state is updated by the command.pBuffersis a pointer to an array of buffer handles.pOffsetsis a pointer to an array of buffer offsets.pSizesisNULLor a pointer to an array of VkDeviceSize buffer sizes, specifying the maximum number of bytes to capture to the corresponding transform feedback buffer. IfpSizesisNULL, or the value of thepSizesarray element isVK_WHOLE_SIZE, then the maximum number of bytes captured will be the size of the corresponding buffer minus the buffer offset.
The values taken from elements i of pBuffers, pOffsets and
pSizes replace the current state for the transform feedback binding
firstBinding + i, for i in [0,
bindingCount).
The transform feedback binding is updated to start at the offset indicated
by pOffsets[i] from the start of the buffer pBuffers[i].
Valid Usage
VUID-vkCmdBindTransformFeedbackBuffersEXT-transformFeedback-02355
VkPhysicalDeviceTransformFeedbackFeaturesEXT::transformFeedbackmust be enabled
VUID-vkCmdBindTransformFeedbackBuffersEXT-firstBinding-02356
firstBinding must be less than
VkPhysicalDeviceTransformFeedbackPropertiesEXT::maxTransformFeedbackBuffers
VUID-vkCmdBindTransformFeedbackBuffersEXT-firstBinding-02357
The sum of firstBinding and bindingCount must be less than
or equal to
VkPhysicalDeviceTransformFeedbackPropertiesEXT::maxTransformFeedbackBuffers
VUID-vkCmdBindTransformFeedbackBuffersEXT-pOffsets-02358
All elements of pOffsets must be less than the size of the
corresponding element in pBuffers
VUID-vkCmdBindTransformFeedbackBuffersEXT-pOffsets-02359
All elements of pOffsets must be a multiple of 4
VUID-vkCmdBindTransformFeedbackBuffersEXT-pBuffers-02360
All elements of pBuffers must have been created with the
VK_BUFFER_USAGE_TRANSFORM_FEEDBACK_BUFFER_BIT_EXT flag
VUID-vkCmdBindTransformFeedbackBuffersEXT-pSize-02361
If the optional pSize array is specified, each element of
pSizes must either be VK_WHOLE_SIZE, or be less than or
equal to
VkPhysicalDeviceTransformFeedbackPropertiesEXT::maxTransformFeedbackBufferSize
VUID-vkCmdBindTransformFeedbackBuffersEXT-pSizes-02362
All elements of pSizes must be either VK_WHOLE_SIZE, or
less than or equal to the size of the corresponding buffer in
pBuffers
VUID-vkCmdBindTransformFeedbackBuffersEXT-pOffsets-02363
All elements of pOffsets plus pSizes, where the
pSizes, element is not VK_WHOLE_SIZE, must be less than or
equal to the size of the corresponding buffer in pBuffers
VUID-vkCmdBindTransformFeedbackBuffersEXT-pBuffers-02364
Each element of pBuffers that is non-sparse must be bound
completely and contiguously to a single VkDeviceMemory object
VUID-vkCmdBindTransformFeedbackBuffersEXT-None-02365
Transform feedback must not be active when the
vkCmdBindTransformFeedbackBuffersEXT command is recorded
Valid Usage (Implicit)
VUID-vkCmdBindTransformFeedbackBuffersEXT-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdBindTransformFeedbackBuffersEXT-pBuffers-parameter
pBuffers must be a valid pointer to an array of bindingCount valid VkBuffer handles
VUID-vkCmdBindTransformFeedbackBuffersEXT-pOffsets-parameter
pOffsets must be a valid pointer to an array of bindingCount VkDeviceSize values
VUID-vkCmdBindTransformFeedbackBuffersEXT-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdBindTransformFeedbackBuffersEXT-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support graphics operations
VUID-vkCmdBindTransformFeedbackBuffersEXT-videocoding
This command must only be called outside of a video coding scope
VUID-vkCmdBindTransformFeedbackBuffersEXT-bindingCount-arraylength
bindingCount must be greater than 0
VUID-vkCmdBindTransformFeedbackBuffersEXT-commonparent
Both of commandBuffer, and the elements of pBuffers must have been created, allocated, or retrieved from the same VkDevice
Host Synchronization
- Host access to
commandBuffermust be externally synchronized - Host access to the
VkCommandPoolthatcommandBufferwas allocated from must be externally synchronized ::