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GPU/Commands: Difference between revisions

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!  Value
!  Value
!  Final stencil value
!  Final stencil value
!  OpenGL equivalent
|-
|-
| 0
| 0
| destination
| old_stencil
| GL_KEEP
|-
|-
| 1
| 1
| destination & ~source
| unknown
|
|-
|-
| 2
| 2
| same as 1
| reference
| GL_REPLACE
|-
|-
| 3
| 3
| Weird operation.
| max(old_stencil + 1, 255)
| GL_INCR
|-
|-
| 4
| 4
| Weird operation. TODO: find out what it is exactly.
| min(old_stencil - 1, 0)
| GL_DECR
|-
|-
| 5
| 5
| destination ^ source
| ~old_stencil
| GL_INVERT
|-
|-
| 6
| 6
| Another weird operation.
| unknown
|
|-
|-
| 7
| 7
| same as 4
| unknown
|
|}
|}
'destination' is the value present in the stencil buffer, 'source' is the replacement value specified in command 0x0105.
 
'old_stencil' is the value present in the stencil buffer, 'reference' is the reference value specified in command 0x0105.


=== Parameter structure for command 0x004D ===
=== Parameter structure for command 0x004D ===
Retrieved from "https://www.3dbrew.org/wiki/GPU/Commands"