TexGenAttrib¶
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class
TexGenAttrib
¶ Bases:
RenderAttrib
Computes texture coordinates for geometry automatically based on vertex position and/or normal. This can be used to implement reflection and/or refraction maps, for instance to make shiny surfaces, as well as other special effects such as projective texturing.
Inheritance diagram
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ConstPointerTo<RenderAttrib>
add_stage
(TextureStage *stage, Mode mode) const¶
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ConstPointerTo<RenderAttrib>
add_stage
(TextureStage *stage, Mode mode, LTexCoord3 const &constant_value) const¶ Returns a new
TexGenAttrib
just like this one, with the indicated generation mode for the given stage. If this stage already exists, its mode is replaced.Returns a new
TexGenAttrib
just like this one, with the indicated generation mode for the given stage. If this stage already exists, its mode is replaced.This variant also accepts constant_value, which is only meaningful if mode is M_constant.
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static int
get_class_slot
(void)¶
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static TypeHandle
get_class_type
(void)¶
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LTexCoord3 const &
get_constant_value
(TextureStage *stage) const¶ Returns the constant value associated with the named texture stage. This is only meaningful if the mode is M_constant.
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int
get_geom_rendering
(int geom_rendering) const¶ Returns the union of the Geom::GeomRendering bits that will be required once this
TexGenAttrib
is applied to a geom which includes the indicated geom_rendering bits.
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Mode
get_mode
(TextureStage *stage) const¶ Returns the generation mode associated with the named texture stage, or M_off if nothing is associated with the indicated stage.
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bool
has_gen_texcoord_stage
(TextureStage *stage) const¶ Returns true if the indicated
TextureStage
will have texture coordinates generated for it automatically (and thus there is no need to upload the texture coordinates encoded in the vertices).
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bool
has_stage
(TextureStage *stage) const¶ Returns true if there is a mode associated with the indicated stage, or false otherwise (in which case get_transform(stage) will return M_off).
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bool
is_empty
(void) const¶ Returns true if no stages are defined in the
TexGenAttrib
, false if at least one is.
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static ConstPointerTo<RenderAttrib>
make
(void)¶
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static ConstPointerTo<RenderAttrib>
make
(TextureStage *stage, Mode mode)¶ Constructs a
TexGenAttrib
that generates no stages at all.Constructs a
TexGenAttrib
that generates just the indicated stage.
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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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ConstPointerTo<RenderAttrib>
remove_stage
(TextureStage *stage) const¶ Returns a new
TexGenAttrib
just like this one, with the indicated stage removed.
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ConstPointerTo<RenderAttrib>