I found the node's runtimeNode property in which I can modify some of the properties of the node.
But if I want to set a node alpha, for example, 0.5, what should I do.
I found the mesh bounding to the node. And in mesh materials uniformmap values diffuse value context alphabits and clearcolor alpha.
I don't know what these two stand for. And the alpha in clearColor can't be changed while the alphabis property can, but takes no effect. I tried viewer.render(). Still nothing happened.
So what's the right way to do that, and what's the CORRECT to modify nodes of models in runtime?
These are the values I mentioned.