Vizard 8 » Command Index » Vizard objects » node3d » <node3d>.alphaFunc
8.0

<node3d>.alphaFunc

Specify the alpha test function

<node3d>.alphaFunc(  
func  
ref  
node = ''  
op = viz.OP_DEFAULT  
)  
func
Can be one of the following alpha comparison function constants:

viz.GL_NEVER
viz.GL_LESS
viz.GL_EQUAL
viz.GL_LEQUAL
viz.GL_GREATER
viz.GL_NOTEQUAL
viz.GL_GEQUAL
viz.GL_ALWAYS
ref
Specifies the reference value that incoming alpha values are compared to. This value is clamped to the range 0-1.
node = ''
Name of sub-node to apply changes to
op = viz.OP_DEFAULT
Can be viz.OP_DEFAULT to use the nodes default op mode or a combination of the following values:

Op modes

viz.OP_TRAVERSE

When performing an operation on a node, traverse the entire subgraph and process all subnodes as well. This is the default value.

viz.OP_OVERRIDE

When applying attributes, have them override attributes of subnodes.

viz.OP_ROOT

When performing an operation on the node, start at the root transform of the node, instead of the model. Processing the root will include all child Vizard nodes.

Remarks

For more information, see the OpenGL documentation for glAlphaFunc.

Return Value

None

See also

<node3d>.alpha
<node3d>.blendColor
<node3d>.blendFunc