3/4 Perspective, visual guide or tutorial?

[Seiseki]

I've been looking for guides to the 3/4 perspective, oddly enough there's not even a wikipedia article.
I want to find an image showing a 3D model seen from the front and one from a 3/4 perspective.
I tried doing this myself, but I'm not even sure I'm doing it right, is the model supposed to be at an angle which makes it 3/4th the height compared to a front perspective?

What really got me thinking about it, was the old classical 'sleeping while standing up' thing you see in most old RPGs. How would it actually look if a character was lying in a bed in a 3/4 perspective?
I want to get down to the technical details to understand this perspective better.
Especially since a lot of games cheat and used a mixed bag of perspectives when it comes to the terrain and objects.

If anyone has any info, articles, guides or tutorials for this, I'd appreciate it.

[ptoing]

The one on the right is what is usually called three quarter view (not perspective)



It seems to me you are referring to top down orthographic view, like in most 2D RPGs.

[Seiseki]

Yes, I'm talking about the fabled "rpg perspective"
So is top down orthographic view the correct term?

Either way, it seems impossible to get decent results on google :/

[Jeremy]

Orthographic is just flat. The term you're looking for is probably front-on Oblique Projection. Possibly with the y-coordinate at 2/3 real size, to fake perspective. Just fyi, "perspective" is the wrong word to use here; Isometric, Oblique, Axonometric, etc. use real measurements but visualised in a 3D way. All straight lines remain parallel

a chart from wikipedia

hope this helps