HDK setting attributes from a SIM node?

[stkeg]

i want to set some point attributes on some geometry.

http://www.sidefx.co...accessAttribute

i was following this example:

GA_RWAttributeRef h = gdp->findFloatTuple(GA_ATTRIB_POINT, "testattr", 3);
const GA_AIFTuple *tuple = h.getAIFTuple();
if (tuple)
{
	 UT_Vector3	 N;
	 for (GA_Iterator it(gdp->getPointRange()); !it.atEnd(); it.advance())
	 {
		 GA_Offset offset = it.getOffset();
		 tuple->get(h.getAttribute(); offset, N.data(), 3);
		 N.normalize();
		 tuple->set(h.getAttribute(), offset, N.data(), 3);
	 }
}
[/CODE]

it's able to get the values of the point attribute, the problem is that it doesn't seem to update the values in the gui.

when i get the values from within the hdk, it seems like the values have been written, but the details view in the gui shows that the values have not changed.

i noticed that i cannot go into the details view and manually change values. when i do, the createAttribute node that i used to create my example attribute (testattr) the red lock toggle is turned on for that node. maybe this has something to do with the fact that i can't change values from within the hdk?

Edited September 19, 2013 by stkeg

[stkeg]

seems like i can't addFloatTuple from within a SIM node, but i can from a SOP node.

any suggestions on how i can modify attributes from within a SIM node?

Edited September 19, 2013 by stkeg