B3D Animation

[kaliber]

I have a problem with my B3D model.

inside my B3D i have 2 Objects, and the structure is :

Scene Root
|--Character
|-----bip01
|--------.....
|--Weapon

My problem is the "Character" is Animated fine, But the "Weapon" is not animated.
the "weapon" animation is baked into keyframes.

i already test it on other engine. help please

sorry for my bad english.

[CuteAlien]

Can you post the model somewhere?

[kaliber]

i will post it tomorow.

can you tell me the error possibility?

[CuteAlien]

No idea what could go wrong without debugging it.

[kaliber]

here is my project with source :

http://dl.dropbox.com/u/69618949/B3DTest.zip

[kaliber]

there is my .max file inside, so you can compare the difference between them.

[kaliber]

it's seem irrlicht B3D loader only support skeletal animation.
CMIIW.

[CuteAlien]

That could be. I haven't found time yet to look at it myself, but definitely makes sense.

[CuteAlien]

I just spend some time on this, as far as I can see the b3d-format itself does not support other animations than bone animations. You wrote you already tested in another engine, so I thought you meant it worked there ... but seeing the format this would surprise me. Did you mean you tested in another engine and it also did fail there?

[kaliber]

im testing it using Blitz3d engine.

in Blitz3D engine if i load the B3D normally, it will have the same result with irrlicht.
so in Blitz3D you have to check each of the object (children) from root to the last children. if the chidren have animation then you have to animate the chidren.

maybe you want to see the code in blitz3D :
http://www.onigirl.com/pipeline/B3dExtensions.zip

i think the animations is in the subAnims.bb

Code: Select all

 
;------------------------------------------------------------------------------------------------
Function EXT_EnumSubAnims(root,nextSubAnim.EXT_SubAnim,count=0)
;
; Recurse through hierarchy to build linked list of sub anims
;------------------------------------------------------------------------------------------------
 
        Local anim.EXT_SubAnim
        
        For i= 1 To CountChildren(root)
                
                child = GetChild(root,i)
                
                ; does this node have animation?
                If (AnimLength(child)>=0)
                        DebugLog(EntityName(child)+": "+AnimLength(child))
                        count                           = count+1       
                        anim                            = New EXT_SubAnim
                        anim\entity                     = child
                        anim\nextSubAnim        = nextSubAnim
                        nextSubAnim                     = anim
                EndIf
                
                count = EXT_EnumSubAnims(child,nextSubAnim,count)
        
        Next
        
        Return count
        
End Function

[CuteAlien]

What I meant is that b3d does not support other animation formats except bones. I did see that the file contained a second animation, I'm just not sure what it should act on. Maybe it should create a default-bone then affecting the whole mesh.

[kaliber]

i found that irrlicht store the animation keys in the joints, but irrlicht dont play it.

can you show me how to make it animate?

[kaliber]

I fixed it by attaching the mesh to the Joint.
but only if the node have mesh and have no bone weight.

maybe it violate B3D format rule.
thanks for the hint.

[CuteAlien]

Sorry, didn't find more time for this yet, but good to see you found a workaround.