How to make a flat object look round?

[TwitchOSX]

I have a round logo for a company. I want to make it look like it is painted on to a christmas tree ornament.. so it almost needs to look 3D. Can I do this in photoshop or illustrator or something? Any thoughts?

[p_taz]

Filter/spherize in photoshop is a simple one.  Adjust where you place the art in frame, and keep your image in a square canvas for best results then clip from background.

[c.pfaffenbichler]

And for the lights/shadows one can often achieve good effects just with brushing in black and white on either two Solid Color-layers or two Gradient-Adjustment Layers Clipping Masked to the content-layer.

Or, if one has CS4, one can use the small 3D-objects-library under 3D – New Shape From Layer, map the content onto that and light it according to one’s taste.

[p_taz]

Or bevel/emboss layer effect on the clipped logo.  You will need big numbers to suit the scale of the object so you end up with a bevel that is as big as the object.  A crude method but will look fine.

[Reynolds__Mark_]

Photoshops new 3D tools (extended only). Choose Sphere. Thats going to be the best way. Anyone remember the good old 3D strange Transform filter?