0 Replies Latest reply on Jan 20, 2007 7:31 AM by rmawatson

    Animated BackDrop (3D)

    rmawatson
      Hello,
      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 other).

      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 the background.

      Any help Greatly Appriciated - Thanks in Advance

      Rob