Attempts at 3d on the Sam?

2008-04-08 Thread Thomas Harte
Hi, I've just discovered pyz80 and am having a fresh bash at some Sam projects. As I'm simultaneously working on a Freescape interpreter for the PC, my thoughts have inevitably turned to 3d on the Sam, even if it means a Freescape-style non-realtime display. I'm therefore curious about

Re: Attempts at 3d on the Sam?

2008-04-08 Thread Colin Piggot
Thomas Harte wrote: I've just discovered pyz80 and am having a fresh bash at some Sam projects. As I'm simultaneously working on a Freescape interpreter for the PC, my thoughts have inevitably turned to 3d on the Sam, even if it means a Freescape-style non-realtime display. Cool! besides

Re: Attempts at 3d on the Sam?

2008-04-08 Thread Thomas Harte
Well I'll certainly have to consider investing in some back issues of Sam Revival. I'm pretty confident that I just bought one of your old Sam's on eBay, so I'm suddenly with a real machine again, at least temporarily. Though I think I'm going to have to contact you privately concerning

Re: Attempts at 3d on the Sam?

2008-04-08 Thread Colin Piggot
Thomas wrote: like only using 4 colours and using palette switching so that the frame buffer only needs to be 'cleared' every fourth frame. Or only a quarter needs to be cleared each frame, if you prefer. What I did on Stratosphere to clear the previous frame was to draw over the previous set

RE: Attempts at 3d on the Sam?

2008-04-08 Thread Tobermory
Still fascinated by the subject. After many many wasted hours fiddling around with routines, I can see that realtime updated 3D on the SAM is possible, but haven't got the brainpower to finish off my buggy work... Howard (=Tobermory) -Original Message- From: [EMAIL PROTECTED]

Re: Attempts at 3d on the Sam?

2008-04-08 Thread Colin Piggot
Howard wrote: Still fascinated by the subject. After many many wasted hours fiddling around with routines, I can see that realtime updated 3D on the SAM is possible, but haven't got the brainpower to finish off my buggy work... I remember you released your Open3D disk on your website many

Re: Attempts at 3d on the Sam?

2008-04-08 Thread Thomas Harte
My original Sam only had 256K. And it really annoyed me later on when half the stuff on Fred wouldn't work, without warning. I think Gamesmaster programs were the worst offenders — you'd get the game clearly working, but with a bunch of monotone grey blocks moving around instead of the

Re: Attempts at 3d on the Sam?

2008-04-08 Thread Andrew Collier
On 8 Apr 2008, at 14:35, Thomas Harte wrote: I know there are some demos with bits of 3d graphics, but I figure that spending 256 kb on getting the fastest possible rotating cube isn't a helpful guide. I assume you're referring to Marc Broster's Dead Wild Cat demo on Fred 50, here? In