Action
Set stencil test actions.
Syntax
StencilOp sfail, spass
Remarks
sfail |
Specifies the action to take when the stencil test fails, one of KEEP, ZERO, REPLACE, INCR, DECR and INVERT. The initial value is KEEP |
spass |
Specifies the action to take when the stencil test passes, one of the same constants as sfail. The initial value is KEEP |
The stencil operation specifies how the stencil buffer is updated. The operation selected depends on whether the stencil test
passes or not.
See also
Example
' Pseudocode
' Draw two points, incrementing stencil at each pixel, then draw the pixels with value 2 in red
StencilOp INCR, INCR
PointSize 760
Begin_G FTPOINTS
Vertex2II 50, 60, 0, 0
Vertex2II 110, 60, 0, 0
StencilFunc EQUAL, 2, 255
ColorRGB 100, 0, 0
Vertex2II 80, 60, 0, 0
