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- sssstttteeeennnnssssiiii((((3333GGGG)))) sssstttteeeennnnssssiiii((((3333GGGG))))
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- NNNNAAAAMMMMEEEE
- sssstttteeeennnnssssiiii - specify the number of bit planes desired to comprise the stencil
- buffer
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- FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee sssstttteeeennnnssssiiii((((ppppllllaaaannnneeeessss))))
- iiiinnnntttteeeeggggeeeerrrr****4444 ppppllllaaaannnneeeessss
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- PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
- _p_l_a_n_e_s is the number of bit planes requested to be configured as
- stencil planes. Only values 0 through 8 are accepted. The
- default is 0.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- sssstttteeeennnnssssiiii specifies how many bit planes are requested to be configured as
- stencil planes. The constraints on _p_l_a_n_e_s are machine dependent. Call
- ggggeeeettttggggddddeeee((((GGGGDDDDBBBBIIIISSSSTTTT)))) to determine the maximum number of bit planes available
- for stencil operation.
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- sssstttteeeennnnssssiiii takes effect only after ggggccccoooonnnnffffiiii has been called. The number of bit
- planes granted for the stencil buffer may not be exactly what was
- requested. Call ggggeeeettttggggccccoooo((((GGGGCCCCSSSSTTTTEEEENNNN)))) to determine how many bit planes were
- configured as stencil buffer planes.
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- Because stencil bit planes are available only in the normal framebuffer,
- sssstttteeeennnnssssiiii should be called only while draw mode is NNNNOOOORRRRMMMMAAAALLLL.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- drawmo, gconfi, getgco, stenci, mssize
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- NNNNOOOOTTTTEEEESSSS
- This routine is available only in immediate mode.
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- IRIS-4D B, G, GT, and GTX models, as well as the Personal Iris, Indy,
- Iris Indigo Entry, and XL, do not support sssstttteeeennnnssssiiii.
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- XS, XS24, XZ, Elan and Extreme systems support up to 4 stencil planes,
- which are borrowed from the Z buffer. The resolution of the Z buffer
- decreases when using stencil planes on Elan systems.
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- On the IRIS-4D RealityEngine models the stencil buffer and the stencil
- component in the multisample buffer are independent. When the
- multisample buffer is requested in the current framebuffer configuration,
- it is recommended to call sssstttteeeennnnssssiiii((((0000)))), as no stencil buffer planes are
- required.
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- BBBBUUUUGGGGSSSS
- IRIS-4D VGX machines without the optional alpha bit planes allocate
- stencil bit planes from the least-significant Z buffer bit planes. Z
- buffer operation compensates for this allocation automatically, so the
- programmer is aware of the allocation only when the Z buffer contents are
- read back using llllrrrreeeeccccttttrrrr. Use ggggeeeettttggggddddeeee to determine whether your machine has
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- PPPPaaaaggggeeee 1111
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- sssstttteeeennnnssssiiii((((3333GGGG)))) sssstttteeeennnnssssiiii((((3333GGGG))))
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- alpha bit planes.
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- PPPPaaaaggggeeee 2222
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