If 3D textured poly games were relatively easy to pull off on the Jag we would have seen them already bitd, there weren't many and the few that were made were kind of laughable surely because of a combination of ill-fitted hardware and poor dev support.
Oh, but I never said, it was very easy to pull off textured 3D in fluid framerate on Jaguar. Even the word relatively, is actually (based on my jag experience) more-than-slightly misleading
If it was so easy, then there wold have been at least a dozen 3D engines for jag or at least prototypes coded in last decade. There's hardly a handful, and as far as I know, zero textured ones. Let alone ones that run at 60 fps (like my platformer renderer) or this one.
There's usually one game that is being mentioned - LiveWire, and even that one has only flat-shaded perspective polys.
Now, as for your other example with the rocket engineering - you certainly don't have to be one, to try and offer your viewpoint.
Just don't expect that particular rocket scientist to take you seriously, that's all I'm saying
You may think that reading input and updating xp,yp for a bitmap in OP list takes longer than 3D transforming, clipping and rasterizing 10 polygons that are partially offscreen. And that's OK, everybody is entitled to their opinion.
But it just so happens, that I actually have hard, actual benchmark numbers, taken from real jag. I know exactly how many vertices I can transform per frame, how many edge lines I can render, how many texels I can read from main memory and how many I can write back. and about 12 other throughput numbers, around which I designed by GPU engine.
Seriously, is there a single person here, on this forum, that also has those actual numbers ? Really ? Please, I want to talk to him/her !
Yet, somehow, everybody feels like a rocket engineer here and is saying - "Oh, I never coded a 3d engine on jag, but you got it wrong" Hmmm, interesting....
I've played NFS in a framerate under 25 on my PC at that time. And it was still incredible fun. I believe I can pull off a version that will do comparable environments at 20+ fps on jag. It's not gonna be next week, and probably not next year (with my burn-outs). I'm quite certain however, that with an interior view from inside the car, the 20-30 fps will be completely realistic on Jag. The fillrate numbers do not lie.
But this very build of RR, is not just a step closer to that, it's really only few steps away (need 3D terrain, and cars).