TransparencyAttrib

class TransparencyAttrib

Bases: RenderAttrib

This controls the enabling of transparency. Simply setting an alpha component to non-1 does not in itself make an object transparent; you must also enable transparency mode with a suitable TransparencyAttrib. Similarly, it is wasteful to render an object with a TransparencyAttrib in effect unless you actually want it to be at least partially transparent (and it has alpha components less than 1).

Inheritance diagram

digraph inheritance1cc7906eca { bgcolor=transparent; rankdir=BT; size="8.0, 12.0"; "DTOOL_SUPER_BASE" [fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style=""]; "ReferenceCount" [URL="acron.core.ReferenceCount.html#acron.core.ReferenceCount",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style="",target="_top",tooltip="/**"]; "DTOOL_SUPER_BASE" -> "ReferenceCount" [arrowsize=0.75,style=""]; "RenderAttrib" [URL="acron.core.RenderAttrib.html#acron.core.RenderAttrib",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style="",target="_top",tooltip="/**"]; "TypedWritableReferenceCount" -> "RenderAttrib" [arrowsize=0.75,style=""]; "TransparencyAttrib" [URL="acron.core.TransparencyAttrib.html#acron.core.TransparencyAttrib",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style="",target="_top",tooltip="/**"]; "RenderAttrib" -> "TransparencyAttrib" [arrowsize=0.75,style=""]; "TypedObject" [URL="acron.core.TypedObject.html#acron.core.TypedObject",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style="",target="_top",tooltip="/**"]; "DTOOL_SUPER_BASE" -> "TypedObject" [arrowsize=0.75,style=""]; "TypedWritable" [URL="acron.core.TypedWritable.html#acron.core.TypedWritable",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style="",target="_top",tooltip="/**"]; "TypedObject" -> "TypedWritable" [arrowsize=0.75,style=""]; "TypedWritableReferenceCount" [URL="acron.core.TypedWritableReferenceCount.html#acron.core.TypedWritableReferenceCount",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=11,height=0.25,shape=box,style="",target="_top",tooltip="/**"]; "TypedWritable" -> "TypedWritableReferenceCount" [arrowsize=0.75,style=""]; "ReferenceCount" -> "TypedWritableReferenceCount" [arrowsize=0.75,style=""]; }

enum Mode

enumerator M_none = 0

No transparency.

enumerator M_alpha = 1

Normal transparency, acron will sort back-to-front.

enumerator M_premultiplied_alpha = 2

Assume textures use premultiplied alpha.

enumerator M_multisample = 3

Uses ms buffer, alpha values modified to 1.0.

enumerator M_multisample_mask = 4

Uses ms buffer, alpha values not modified.

enumerator M_binary = 5

Only writes pixels with alpha >= 0.5.

enumerator M_dual = 6

opaque parts first, then sorted transparent parts.

static TransparencyAttrib.get_class_slot()

static TransparencyAttrib.get_class_type()

TransparencyAttrib.get_mode()

Returns the transparency mode.

static TransparencyAttrib.make()

Constructs a new TransparencyAttrib object.

static TransparencyAttrib.make_default()

Returns a RenderAttrib that corresponds to whatever the standard default properties for render attributes of this type ought to be.