<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