Translation and rotation question.

r2d2 · Post by **r2d2** » Fri Jun 18, 2004 9:44 pm

Let's say we have a scenenode that is just at the position 0,0,0 which has no mesh so you won't see anything. You add an animatedmeshscenenode at the same spot as child of it. Now you apply a rotation matrix to the first. Now both object (well you can't see the first one because it hase no mesh attached to it) should rotate and if we would add two times the same mesh ad the same spot the two should rotated synchroned. But the second mesh or the child mesh(depends on which of the two examples you use) doesn't rotate it just translates up and down left and right with the other object but it just doesn't rotate it just rotates if i set the absolute transformation matrix manually but then everything is messed up again when the nodes are not on the same spot and with the relative transformation matrix nothing is working.
I don't think that this can be right. If someone want's to i can send him/her the code.

warui · Post by **warui** » Sat Jun 19, 2004 12:29 am

Strange, i did that for camera (camera where child of a empty node) and everything worked ok. What node did you used ? I used scene::ISceneManager::addEmptySceneNode().

r2d2 · Post by **r2d2** » Sat Jun 19, 2004 8:04 am

it's the same i use

warui · Post by **warui** » Sat Jun 19, 2004 4:06 pm

Now i see it. You used rotation matrix while i use setRotation() method. Maybe that make diference ?

arras · Post by **arras** » Sat Jun 19, 2004 5:33 pm

That is the think, he is using matrix to directly transform model as I understand it. I also use empty scenenode as parent to camera and my code work with matrices but for filal position and rotation changes I use setRoration and setPosition functions.

r2d2 · Post by **r2d2** » Sat Jun 19, 2004 5:41 pm

hmm that could be the problem i will have a look at it perhaps that's the failure