translation = do my homework please?
I assume he will tell you to forget about Photoshop and learn Blender instead but he will be a lot more PC about it than I will
now your bottle is tricky so here is my go at it
your issues are many so in no special order;
Adobe Photoshop = old software but my goto and just better
p.s, whatever software made your example image did not make a standard Jpeg so Photoshop will not be able to open it... I converted the image to Png but many people don't know how to get around problems like that and it can loose you clients if they can't open your files
good luck with it mate
p.s, 1 more tip... where you put your points matter and each object is different but remember to turn your bottles around in Photoshop to see it from different angles before exporting it
Thanks for the complement Graham - I think you meant "DOG" though 🙂
You can easily make a round bottle in Photoshop from a circular extrusion - just draw half of it with the pen tool. Don't forget to draw the path as the inside and outside of the glass area - a bottle is hollow not a solid lump of glass. When extruding I find setting depth to 0 (which actually gives a tiny value of -0.1) is the best you can do.
Apply the glass material to all the extrusion surfaces or you will get a visible join at 0 degrees and 360 degrees
All that said I am indeed going to advise you to use a proper 3D application. The bottle you show is a square with rounded corners, moving smoothly to a circular neck at the top with a screw thread added. All that is fairly easy to model in a proper 3D application such as Blender and
almost impossible to model accurately with the limited 3D functions in Photoshop.