The pTessellationState member of VkGraphicsPipelineCreateInfo
points to a structure of type VkPipelineTessellationStateCreateInfo.
The VkPipelineTessellationStateCreateInfo structure is defined as:
typedef struct VkPipelineTessellationStateCreateInfo {
VkStructureType sType;
const void* pNext;
VkPipelineTessellationStateCreateFlags flags;
uint32_t patchControlPoints;
} VkPipelineTessellationStateCreateInfo;
sType is the type of this structure.
pNext is NULL or a pointer to an extension-specific structure.
flags is reserved for future use.
patchControlPoints number of control points per patch.