Updating trimesh?

Troubleshooting graphics
1

Does anyone know how to update TriMesh on the fly ?

I tried



mesh.getVertexBuffer().put(index,value);





But it only changes it once…next time nothing happens.



Thanks

2

That's the correct way. Maybe there is another problem?

3

Perhaps it will work if you add:

mesh.getVBOInfo().setVBOVertexID(-1);
4
vear said:


Perhaps it will work if you add:

mesh.getVBOInfo().setVBOVertexID(-1);

That did it, thank you !
5

Any comment on why meshes use float/intbuffers ? It just seems like it's

alot of overhead. And I'd think it doesn't fit very well into most non-jme code

I have some general routines that update meshesm now they dont work without being rewritten.

One would think I'm not the only one with that problem.

I tried to access the array behind the buffers but thats not possible.


6

It kind of the other way round: arrays would be overhead :slight_smile:

jME uses those buffers because they can be sent to the graphics card via opengl this way. They were converted to and from java arrays in the past - but this caused the data to be held twice thus an application needed about twice as much memory for meshes…

7

Ahh…Ok now another question. I'm using the new shadow pass.

If you know, how come  shadows are not updated when I use dynamic meshes ?



PS the



mesh.getVBOInfo().setVBOVertexID(-1);



Didnt make any difference anyway i found out. Suddenly it just worked, dont know why.