Dear Xara, please make such pseudo 3d composing possible for bitmaps
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Here is a Photoshop file example (you need to set "Move Tool V" to layers instead of groups and move green star, works in CC versions only I believe)

https://dl.dropboxusercontent.com/u/...e_subtract.psd

You only need a couple extra blending modes and independent transform linking in between objects, like Photoshop chain links, for this . Would be nice also if depth image could be stored in 16bit.