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→Parameter value format for command 0x0106
Line 1,458:
Line 1,458:
+
! 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 ===