Changing all materials in the scene.

3DModelerMan · Post by **3DModelerMan** » Tue Aug 03, 2010 8:47 pm

Is there an automatic way to change all the materials in the scene to a specific type, then change them all back? Or do I have to use the brute force method, and search the scene graph?

slavik262 · Post by **slavik262** » Tue Aug 03, 2010 9:23 pm

You have to brute force it, but you can get an array of scene nodes from getSceneNodesFromType. Then you'll just need another array of the same size to store all the material types until you change them back.

What are you doing this for? A normal or depth map?

vitek · Post by **vitek** » Wed Aug 04, 2010 3:19 am

You could do something with this.

Travis

DtD · Post by **DtD** » Wed Aug 04, 2010 6:17 am

What about the OverrideMaterial?
http://irrlicht.sourceforge.net/docu/cl ... 7277abf14a

BlindSide · Post by **BlindSide** » Wed Aug 04, 2010 9:51 am

DtD wrote:What about the OverrideMaterial?
http://irrlicht.sourceforge.net/docu/cl ... 7277abf14a

this.

hybrid · Post by **hybrid** » Wed Aug 04, 2010 11:26 am

IIRC, you cannot change the material type currently. Only the other attributes of the material.

3DModelerMan · Post by **3DModelerMan** » Wed Aug 04, 2010 1:21 pm

Does the override material get switched back after I've changed it though? What if I just looped through all the nodes, then stored the're materials in memory, and switched to the material I wanted, then when I was done, switched back to the ones I stored in memory? Would that take up too much memory?

slavik262 · Post by **slavik262** » Wed Aug 04, 2010 1:28 pm

It shouldn't take too much memory, and that's what I'd do.

3DModelerMan · Post by **3DModelerMan** » Wed Aug 04, 2010 3:13 pm

Oh okay, is there a good way to seperate the logic of my nodes, from the rendering? I'm going to be calling smgr->drawAll() multiple times for multipass rendering, so I don't want the animators to execute every single draw call. Maybe disable and then reenable them all?