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calumr · Jul 7, 2001, 12:37 PM

In order to draw some attention to my other project, I ported a Windows screensaver to MacOSX.

It uses OpenGL, and shouldn't be too demanding. (Sorry there aren't any screenshots).
www.geocities.com/calum_robinson

Let me know what you think.

Jul 7, 2001, 12:50 PM

Did you know that there was no need to compress a .dmg since it's already compressed ?

Norm1985 · Jul 7, 2001, 01:00 PM

I'll take a look at it a little later since I have to relogin as root to install it and tell ya what i think.

dfbennett · Jul 7, 2001, 01:30 PM

Originally posted by calumr:
In order to draw some attention to my other project, I ported a Windows screensaver to MacOSX.

It uses OpenGL, and shouldn't be too demanding. (Sorry there aren't any screenshots).
www.geocities.com/calum_robinson

Let me know what you think.

Works well. Although it's not my kind of screen saver. Works very well though. Good work!

[ 07-07-2001: Message edited by: dfbennett ]

Mac Boy · Jul 7, 2001, 01:56 PM

Looks cool. Nice job.

I noticed two bugs though that I had to deal with on
a screensaver that I wrote. First, the screen goes to white for a moment before going black. Not a big deal, but a really easy fix. Just put in the following code right after your NSOpenGLView is created:

<BLOCKQUOTE>code:<HR><pre>glClearColor (0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glFlush();[/code]

Mike Trent from Apple clued me into this one when I had the same bug in my saver.

Secondly, your screensaver always inits the NSOpenGLView in Millions of colors. If you are in Millions mode, you wouldn't notice this, but if you are in thousands of colors, the preview in the System Preferences is all botched up. This is also an easy fix. Just initialize into whatever mode the computer is already in. I use this for my NSOpenGLView attributes:

<BLOCKQUOTE>code:<HR><pre>NSOpenGLPixelFormatAttribute attribs[] = {
NSOpenGLPFADepthSize, 1,
NSOpenGLPFAAccelerated, 0
};[/code]

That should solve the problem, because it no longer asks for a specific number of bits for the color.

- Ross

Norm1985 · Jul 7, 2001, 01:58 PM

Dude, I must say that's a pretty cool screen saver.

I just wish it was in more colors than just white and black.

Mac-arthur · Jul 7, 2001, 02:53 PM

Originally posted by calumr:
In order to draw some attention to my other project, I ported a Windows screensaver to MacOSX.

It uses OpenGL, and shouldn't be too demanding. (Sorry there aren't any screenshots).
www.geocities.com/calum_robinson

Let me know what you think.

I like it!...Changed my settings to use it!

Arthur

calumr · Jul 7, 2001, 03:02 PM

Originally posted by Norm1985:
I just wish it was in more colors than just white and black.

Uh? Its in colour.

Thanks to MacBoy for the tips. I'm glad you all like it.

Developer · Jul 7, 2001, 03:17 PM

Uh? Its in colour.

No, it isn't.
It looks cool first, then after everything is white, it stays white.

Developer

blah · Jul 7, 2001, 05:31 PM

Originally posted by Developer:

No, it isn't.
It looks cool first, then after everything is white, it stays white.

Yep. same here... wonder what the issue is... using Nvidia Geforce 2 here, on a G4 450

Scrod · Jul 7, 2001, 06:19 PM

It does that on my Pismo PowerBook as well.[/LIST]null

mememe · Jul 7, 2001, 06:21 PM

hmm colors stay for a while then it turns white & stays
g4/400/radeon agp

calumr · Jul 7, 2001, 07:45 PM

What should be happening is a black rectangle being drawn over every frame, which stops the whole screen going white.
<BLOCKQUOTE>code:<HR><pre>
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4d(0.0,0.0,0.0,(1.0/10.0));
glRectd(-1,-1,sys_glWidth+1,sys_glHeight+1);[/code]
But that doesn't seem to be happening in your cases. Weird - it works perfectly on my G3/PCI Radeon. I should try this problem in the developer forum.

Jul 7, 2001, 10:07 PM

cool screensaver. It's one of the few that works properly with my dual monitor setup.

Scott_H · Jul 7, 2001, 10:13 PM

I don't understand why it's soooooo slow on my system? Am I missing some software?

kjb · Jul 7, 2001, 10:25 PM

Originally posted by Scott_H:
I don't understand why it's soooooo slow on my system? Am I missing some software?

Mine too. I'm guessing it has something to do with the XCLAIM VR video card
I have in my G3. I uses the same Rage Pro chipset as your iMac Scott, so I think that is the culpret. I dl'd the Tomb Raider demo and it fails to run because "Open GL isn't properly installed or supported" by my system. C'mon Apple, how bout some Rage Pro drivers?

And so Scott doesn't have to say it again

"where are the Rage Pro Drivers?!?!"

Jul 8, 2001, 03:42 AM

one teensy suggestion don't know if this is the screensaver app's responsibility or the module's but it would be great if your screensaver (and the rest frankly) could simply blank out one screen when running on dual monitors. When running on both screens most savers slow way way down. It would also be nice to choose which screen the saver runs on. Again don't know who should control this....

Cowdog · Jul 8, 2001, 12:18 PM

Originally posted by Developer:

It looks cool first, then after everything is white, it stays white.

I get the same, I'm on a b&w g3 with stock rage 128 card.

Here's what it looks like for me (using saverlab):

Flurry 2 seconds:

Flurry after 10 seconds:

edit: fix ubb

[ 07-08-2001: Message edited by: Cowdog ]

calumr · Jul 8, 2001, 06:20 PM

I fixed the problem. It was to do with some systems not clamping colours right. Its on my site now:
www.geocities.com/calum_robinson/Flurry.dmg.gz

Thanks for the feedback and helping me fix it.

BTP · Jul 8, 2001, 07:00 PM

I'd love to see it, but all I get is a white screen on my Rev. A iBook.

iSoulBrotha · Jul 8, 2001, 08:35 PM

Very Cool and Phaat! Works just fine on my system - G3/450/UWSCSI/18gig 10K

iSoulBrotha · Jul 8, 2001, 08:36 PM

Very Cool and Phaat! Works just fine on my system - G3/450/UWSCSI/18gig 10K

iSoulBrotha · Jul 8, 2001, 08:44 PM

Very Cool and Phaat! Works just fine on my system - G3/450/UWSCSI/18gig 10K

Cowdog · Jul 8, 2001, 08:55 PM

Originally posted by calumr:
I fixed the problem. It was to do with some systems not clamping colours right. Its on my site now:
www.geocities.com/calum_robinson/Flurry.dmg.gz

Thanks for the feedback and helping me fix it.

Cool it works now.. although your link doesn't seem too, I dled from your first homepage link.

Reminds me of one of the savers I saw on this guy's page and makes wish there were more like it.. very cool thanks (and please make more)

edit: hmm my link didn't work either

[ 07-08-2001: Message edited by: Cowdog ]

kelix · Jul 9, 2001, 04:24 AM

WOW great saver!!! very nice work mate

G4 500 DVD-RAM

Spheric Harlot · Jul 9, 2001, 08:41 AM

iMac DV 400, 192 MB RAM...

First version would look good but then stay white, as described above.

New version, when activated, gives a white screen, and then a black screen.
Nothing visible happens after that.

-chris.

Nyuni · Jul 10, 2001, 10:26 AM

Originally posted by Cowdog
Reminds me of one of the savers I saw on this guy's page and makes wish there were more like it.. very cool thanks (and please make more)

Damn!!!

If I knew how to code at all I'd try to get together with this guy to port those things over to OS X.. they're amazing!! (Checked 'em out on my Win2k beast here at work..)

Considering they're OpenGL, shouldn't be too much of a task to bring 'em over, right? Correct me if I'm wrong, I'm no code jockey by any means.

[ 07-10-2001: Message edited by: Nyuni ]

[ 07-10-2001: Message edited by: Nyuni ]