The only two ways I know in Photoshop are to :
1. Copy or drag the entire 3D layer into the new document. Then delete the unwanted objects followed by 3D>Merge 3D layers
2. Export the 3D object from the old document to a file (e.g a *.dae file) then in the new document use New 3D layer from file , followed by 3D >Merge 3D layers
"Export the 3D object from the old document to a file"
When I try to do that, it exports everything in the file...
That object is made up of 3 meshes, do I have to export them separately or is there a way to do it as one object?
When I try to export by right clicking the group (is that a "mesh group?") the export mesh option is greyed out.
By the way, thanks for helping here, I really appreciate it.
I did do some searching, watched some tuts etc but didn't see this covered.
Oh also... how do I bring the exported mesh into the other scene?
I hope I'm not driving you crazy with questions.... thanks!
No problem with questions - that is what the forum is about.
If you use the Export Mesh method then you can only export one object at a time (not a group).
If you use the Export layer (or just drag the whole 3D layer across) then the whole scene will move together
To use an exported mesh in the new file then in the 3D layer use New 3D Layer from File - then merge 3D layers to bring the object into an existing scene.
Looking at what you are trying to do, I would drag the entire layer across to the new document and merge it with your new 3D layer. Then in the 3D panel turn off visibility of all groups/objects except those you want to move and then position the objects. You can then turn on visibility of the next group/object and move ....etc. Any unused objects you can delete - or just leave visibility off.
Whilst some of this may seem awkward , you have to bear in mind that Photoshop is primarily a 2D image editor with some 3D facilities added. For full 3D flexibility a proper 3D application is better - for example Blender (which is free) allows you to easily move/copy 3D objects between layers. You can always bring the rendered output back into Photoshop.
I agree with Dave: doing this in Photoshop is like pulling teeth from a momma bear with cubs. In short: unpleasant, inconvenient, and far more difficult than it needs to be.
As suggested, Blender is a great option, although if you've never worked with a 3d app before it is going to be very confusing. Perhaps Sketchup would be a better idea, since it is aimed at architects en designers who start out in 3d.
Good points - I am going to d.l. blender and mess with that a bit, think about whether I am using the right tools or not.
I thought the PS tools would work, I'm not going after high degree of technical accuracy - the end product is a mockup for a sports venue showing stages, decor etc. I want to use all that truss to "build" a stage structure. The plan is to use Dimension to do the final 2D / 3D mockup.
Thanks for all your help!
BTW, a couple of last questions:
:: Is there a way I can merge the meshes that comprise an object?
:: What is the best way to bring the exported mesh object into the other file?
Thanks R.E., I will look at those options.
Dave and R.E.,
I looked at Blender and Sketchup, and Blender seems like a bit much for what I am trying to do.
So I downloaded a copy of Sketchup Pro, and it's going much better now. In fact, if it wasn't for the looming deadline, I would say I'm having fun. The interface is a lot more natural, and it's just easier to manage.
I tried Sketchup Free, but it runs in a browser and just doesn't seem like it has enough of what I want. Sketchup Pro is about $600 (...gulp...) but if this project takes off it will be well worth it.
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They used to have a free "make" version as well, but Google is making it harder nowadays to find it, and obviously seems to be wanting non-commercial users to use that web-based version, unfortunately.
Luckily I found the list of direct downloads:
Before you purchase anything, also test the free Make 2017 version.