Maya 2015 API set default for MPxSurfaceShape attributes

[haggi_master]

Hi,

I have my own surface shape which inherits from MPxSurfaceShape. Unfortunately the default values for "visible in reflection" and "visible in refraction" is off. That mans I have to turn it on everytime I create a new node of this type. But it is a possible source of problems.

Is there a way to change the default values of these attributes? Or do I have to wrap my node into a creation script which sets the correct attributes?

[cheng_xi_li]

Hi,

I think you could try postConstructor.

Yours,

Li

[haggi_master]

What I already tried is to set the plugs to "true" in the postConstructor. But that happens always if a node is created, what means if I turn it off for some reason they are turned on the next time I load the scene.

[cheng_xi_li · Accepted solution]

Hi,

I've just got an idea about this. Use MFileIO to check if it is opening a scene.

	if (!(MFileIO::isImportingFile() |
		MFileIO::isOpeningFile() |
		MFileIO::isReferencingFile() |
		MFileIO::isReadingFile())
		)
	{
		MFnDependencyNode fnNode(thisMObject());
		auto plug = fnNode.findPlug("visibleInRefractions");
		plug.setBool(true);
	}

I've tested myself, it seems fine.

Yours,

Li

[haggi_master]

Yepp, seems to work fine. Great idea, thank a lot.