Tobias Rosenberger

i try to understand jit.anim.node better which for me always involves some trail and error :-)

this example based on a tutorial i can rotate just as i want: i have four cubes which each has a sphere attached and i can rotate at the links...

But i struggle a little bit to understand the anchor values that i found by trial & error... Anywhere i can find more info?

Now the position of the cubes / spheres is relative to its parents...

Is there a way to dissolve the gridshapes from the jit.anim.node, so that they keep all their world transform values (f.e, position of a sphere says 0. 0. 0., but in fact that is parent relative; i want now to get rid of the node, but the position of the sphere should stay as it is in world coordinates, it should not be on pos 0. 0. 0. after i detach/delete the node...)

i try to understand jit.anim.node better which for me always involves some trail and error :-)
this example based on a tutorial i can rotate just as i want: i have four cubes which each has a sphere attached and i can rotate at the links...
But i struggle a little bit to understand the anchor values that i found by trial & error... Anywhere i can find more info?

Also:
Now the position of the cubes / spheres is relative to its parents...
Is there a way to dissolve the gridshapes from the jit.anim.node, so that they keep all their world transform values (f.e, position of a sphere says 0. 0. 0., but in fact that is parent relative; i want now to get rid of the node, but the position of the sphere should stay as it is in world coordinates, it should not be on pos 0. 0. 0. after i detach/delete the node...)


jit-anim-node-anchor-and-detach

i'm not sure what you're asking in the first part of your post, however for the second part, the jit.anim.node worldpos attribute is your friend. simply send "getworldpos" to the node whose world-space position you want. this will output the position out its dump-out, and can be used to set the position of a gl object not belonging to the current anim.node hierarchy.

however in order for this to work, you must not have any spatial transformations applied to your root gl.render node, so you must remove the gl.handle attached to the gl.render. you can add the objects to a gl.node, and attach the handle to that, or simply attach the handle to the root jit.anim.node of your structure.

i'm not sure what you're asking in the first part of your post, however for the second part, the jit.anim.node worldpos attribute is your friend. simply send "getworldpos" to the node whose world-space position you want. this will output the position out its dump-out, and can be used to set the position of a gl object not belonging to the current anim.node hierarchy.  

however in order for this to work, you must not have any spatial transformations applied to your root gl.render node, so you must remove the gl.handle attached to the gl.render. you can add the objects to a gl.node, and attach the handle to that, or simply attach the handle to the root jit.anim.node of your structure.


regarding the first part, i guess if you have a look at the posted patch and don't see something obvious stupid, then i am fine... found some kind of workflow now to find anchor positions more quickly, via switching between different rotation values...

jit.anim.node anchor and detach