Search found 119 matches

by David Williams
Tue 24 Dec 2019, 16:50
Forum: Graphics and Games
Topic: Xmas 2019
Replies: 2
Views: 1381

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: 2054

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: 2054

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: 2054

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: 2054

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: 4061

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: 4061

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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by David Williams
Sat 14 Dec 2019, 05:43
Forum: Graphics and Games
Topic: tech demo
Replies: 15
Views: 4061

Re: tech demo

Bored employee syndrome strikes again. https://youtu.be/yai1srcKc1A REM Semi-Realistic Kaleidoscope REM Requires BB4W & GfxLib2 REM REM Note that this program uses a *very* inefficient means of achieving a kaleidoscope effect! *ESC OFF MODE 8 : OFF ScrW% = 640 ScrH% = 512 INSTALL @lib$ + "GFXLIB2.BB...
by David Williams
Fri 13 Dec 2019, 02:10
Forum: Graphics and Games
Topic: Image display question
Replies: 8
Views: 2074

Re: Image display question

This is only part of the program, but it should show enough for the question. I tried to display a .png image in my BBC Basic program, and I have been unsuccessful. Anyone know how to do this? ( being able to display the file will help me with my character extraction) PROCgraphics(1280,1024) *DISPL...
by David Williams
Thu 12 Dec 2019, 05:49
Forum: Announcements
Topic: BBC BASIC for SDL 2.0 version 1.08a released
Replies: 40
Views: 9234

Re: BBC BASIC for SDL 2.0 version 1.08a released

I have run dlgdemo.bbc with BBCSDL versions 1.06a, 1.07a and 1.08a under Windows (SDLIDE). No problems at all with regards responsiveness with v1.06a (clicking a 'List box item' whether very short, short or long mouse button presses always results in the item being selected). However, under versions...