Search found 122 matches

by David Williams
Tue 17 Nov 2020, 22:45
Forum: Miscellaneous
Topic: Apple's ARM-based Macs
Replies: 8
Views: 380

Re: Apple's ARM-based Macs

ExtremeTech: " The New Apple M1 Reviews Put AMD, Intel Officially on Notice " https://www.extremetech.com/computing/317438-the-new-apple-m1-reviews-put-amd-intel-officially-on-notice " The M1 is a serious, serious contender for one of the all-time most efficient and highest-performing architectures ...
by David Williams
Thu 12 Nov 2020, 05:46
Forum: Miscellaneous
Topic: Apple's ARM-based Macs
Replies: 8
Views: 380

Re: Apple's ARM-based Macs

"Apple Silicon M1 Benchmarks Are Unbelievable" https://youtu.be/PRtEQ4OapW4 I wonder if his enthusiasm will take a hit when he sees the performance of emulated x86 apps (via Rosetta 2 )? In any case, from what I've seen and read (YouTube videos & articles), the M1 is no slouch at least with native A...
by David Williams
Wed 04 Nov 2020, 18:25
Forum: BBC BASIC language
Topic: String allocation comparison
Replies: 2
Views: 243

Re: String allocation comparison

BASIC 2 (BeebEm): 7764 bytes BASIC 5 (RedSquirrel): 16664 bytes Matrix Brandy 1.22.8: 12792 bytes BBC BASIC for SDL 2.0: 1160 bytes Make of that what you will. In case it's of interest: BASIC 4 (BeebEm): 7764 bytes BBC BASIC 86 (DOS emulator online): 62266 * bytes BB4W v1.07f: 8470 bytes * Based on...
by David Williams
Tue 24 Dec 2019, 16:50
Forum: Graphics and Games
Topic: Xmas 2019
Replies: 2
Views: 2110

Xmas 2019

No source - just enjoy the spectacle: http://www.proggies.uk/progs/zip/xmas2019.zip (101 Kb) Needs a fast PC - it's written in BASIC, and there's rather a lot going on! EDIT : Here's a very glitchy YouTube video (30 fps, 80% quality) of the demo in case anyone has trouble running the EXE: https://yo...
by David Williams
Tue 17 Dec 2019, 19:12
Forum: Graphics and Games
Topic: Water Ripples
Replies: 8
Views: 3662

Re: Water Ripples

* 3D perspective effect achieved by scaling the horizontal rows of pixels I'm still not fully understanding. Given that the image contains no 'large scale' objects (which would require perspective transformations) but only ripples (and those ripples presumably cover an 'infinite' area of water), I ...
by David Williams
Tue 17 Dec 2019, 03:04
Forum: Graphics and Games
Topic: Water Ripples
Replies: 8
Views: 3662

Re: Water Ripples

I couldn't figure out why you initially plot the ellipses 'linearly' and then perform a non-linear stretch to their final location and size. The effect is supposed to be 3D (or at least pseudo -3D). In that regard, I hope it's pretty convincing. To create the illusion of depth, I did the following:...
by David Williams
Mon 16 Dec 2019, 15:42
Forum: Graphics and Games
Topic: Water Ripples
Replies: 8
Views: 3662

Re: Water Ripples

Hmmmm. I wanted to have a look at this and so, for the first time, downloaded GFXLIB2 (v.2.06). Unfortunately it does not appear to have the module Clrlg.bbc. Any ideas, please? Hmm strange. I expected ClrLG to be in v2.06, but you're right - it's missing. I haven't been very good at keeping the pu...
by David Williams
Mon 16 Dec 2019, 10:16
Forum: Graphics and Games
Topic: Water Ripples
Replies: 8
Views: 3662

Water Ripples

http://www.proggies.uk/misc/waterripples2.zip https://youtu.be/oreComUsg78 REM Raindrop Water Ripples 2 REM Requires BB4W & GfxLib2 *ESC OFF MODE 8 : OFF ON ERROR PROCCloseGDIP : PROCerror( REPORT$ + " at line " + STR$ERL ) ON CLOSE PROCCloseGDIP : QUIT N% = 250 : REM no. of ripples INSTALL @lib$ +...
by David Williams
Sun 15 Dec 2019, 19:03
Forum: Graphics and Games
Topic: tech demo
Replies: 15
Views: 6979

Re: tech demo

Go ahead and publish your BBCSDL conversion whenever you're ready. :) OK (listing below). Thanks, Richard. It runs well and looks nice on the 3 systems I ran it on (Windows, Linux Mint & Ubuntu, and a Raspberry Pi 4). Here's some shaky hand-held video of the program running under Raspbian Buster on...
by David Williams
Sun 15 Dec 2019, 03:14
Forum: Graphics and Games
Topic: tech demo
Replies: 15
Views: 6979

Re: tech demo

RichardRussell wrote:
Sat 14 Dec 2019, 18:30
So if you don't want me to publish a conversion that's fine, but I don't think it's reasonable to expect me not to do it for my own satisfaction.
I had no such expectation (just for the record). Go ahead and publish your BBCSDL conversion whenever you're ready. :)


David.
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