I am currently trying to insert an animated backdrop into a
3d scene, and am encountering some difficulties.
My problem is first, that I only want a small area of the
backdrop animated. Now, I cant use overlays for this as the
animated sections need to appear behind the 3d object in my scene.
I have tried layering multiple images on the camera.backdrop, but
it seems it will only display the backdrop that is highest up in
the cameras backdrop list at any one time. This forces me to have
all the animation on an 800x600 image, instead of an large still
image for the backdrop and small 50x50 animations placed around it.
This is unlike the Cameras.Overlay, which will display multiple
Overlays (obviously if they have an alpha or arn't ontop of each
Currently I have a function, that on Start Movie, will build
a lists of all the frames from my cast for each animation. So I
give it Smoke_Anim as the name and it will search the cast and
build a list of anything Matching Smoke_Anim_1 or _2 or _3 etc.
etc.. On Prepare Frame, I then Increment through this list, finding
what frame its on. deleting that frame from the Overlay and
replaceing it with the next frame of animatio. This works fine for
a small animation thats mabey 25kb per frame, but when I try to use
this method on an entire backdrop (800x600) the frames are just too
big too handle.. even compressed as .jpg they are 300kb, And its
having problems swapping them @ 30 Frames per second
Could anyone suggest an alternative method, or tell me what
Im doing wrong. I checked out the available tutorials on backdrops
and grabbed the lingo behavior by 'Christophe Leske'. Even though
this has a tick box for animated images (so it updates everyframe)
I dont see how to use it, as apparently the backdrop can only be of
these types (#bitmap, #vectorShape, #flash, #text). What would have
been very handy is if I could have just put a quicktime or avi as