Function bgfx_rs::alloc_transient_index_buffer

pub fn alloc_transient_index_buffer(
    tib: &mut TransientIndexBuffer, 
    num: u32, 
    index_32: bool
)

• tib: TransientIndexBuffer structure is filled and is valid for the duration of frame, and it can be reused for multiple draw calls.
• num: Number of indices to allocate.
• index_32: Set to true if input indices will be 32-bit.