AntialiasAttrib¶
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class
AntialiasAttrib
¶ Bases:
RenderAttrib
Specifies whether or how to enable antialiasing, if supported by the backend renderer.
Inheritance diagram
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enum
Mode
¶ -
enumerator
M_none
= 0¶
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enumerator
M_point
= 1¶
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enumerator
M_line
= 2¶
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enumerator
M_polygon
= 4¶
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enumerator
M_multisample
= 8¶
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enumerator
M_auto
= 31¶
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enumerator
M_type_mask
= 31¶
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enumerator
M_faster
= 32¶ Extra add-on bits for performancequality hints.
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enumerator
M_better
= 64¶
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enumerator
M_dont_care
= 96¶
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enumerator
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static int
get_class_slot
(void)¶
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static TypeHandle
get_class_type
(void)¶
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unsigned short int
get_mode
(void) const¶ Returns the specified antialias mode.
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unsigned short int
get_mode_quality
(void) const¶ Returns the specified antialias mode, with the type bits masked out. This therefore indicates only the requested quality settings: one of M_faster, M_better, M_dont_care, or zero (unspecified).
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unsigned short int
get_mode_type
(void) const¶ Returns the specified antialias mode, with the quality bits masked out. This therefore indicates only the requested type of antialiasing: M_none, M_auto, or some specific combination.
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static ConstPointerTo<RenderAttrib>
make
(unsigned short int mode)¶ Constructs a new
AntialiasAttrib
object.The mode should be either M_none, M_auto, or a union of any or all of M_point, M_line, M_polygon, and M_multisample. Also, in addition to the above choices, it may include either of M_better of M_faster to specify a performance/quality tradeoff hint.
If M_none is specified, no antialiasing is performed.
If M_multisample is specified, it means to use the special framebuffer multisample bits for antialiasing, if it is available. If so, the M_point, M_line, and M_polygon modes are ignored. This advanced antialiasing mode is only available on certain graphics hardware. If it is not available, the M_multisample bit is ignored (and the other modes may be used instead, if specified).
M_point, M_line, and/or M_polygon specify per-primitive smoothing. When enabled, M_point and M_line may force transparency on. M_polygon requires a frame buffer that includes an alpha channel, and it works best if the primitives are sorted front-to-back.
If M_auto is specified, M_multisample is selected if it is available, otherwise M_polygon is selected, unless drawing lines or points, in which case M_line or M_point is selected (these two generally produce better results than M_multisample)
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static ConstPointerTo<RenderAttrib>
make_default
(void)¶ Returns a
RenderAttrib
that corresponds to whatever the standard default properties for render attributes of this type ought to be.
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enum