Encodes a command to render one instance of primitives using vertex data in contiguous array elements.
- iOS 8.0+
- macOS 10.11+
- tvOS 9.0+
The type of primitives that the vertices are assembled into.
For each instance, the first vertex to draw.
For each instance, the number of vertices to draw.
Drawing starts with the first vertex at the array element with index
vertex and ends at the array element with index
When a draw command is encoded, any necessary references to rendering state or resources previously set on the encoder are recorded as part of the command. After encoding a command, you can safely change the encoding state to set up parameters needed to encode other commands.