The Branching Light Circuit Awakens - .scr

jph_wacheski · Post by **jph_wacheski** » Mon Jun 29, 2009 3:27 pm

In my personal quest to utilize ZGE in strange ways, here is another 'light painting',. Like that pigment puller one I did a while back, this is based around the idea of leaving pixel trailes in the screen by using; app.clearScreenMode=1;

the insperation for this one largly comes from reading this guys interesting site; http://www.taitographs.co.uk/machines.html
I was tempted to start building me a machine however figured that would become a load of work, so i went this digital 'simulation' type route.

I am quite happy with this production so far, (although there is an unintetional and strange glitch at the start that I can't quite isolate,. ) Here is a snapshot ver. to look at,. I may change it some more? just wundering how it behaves on other systems,. as that clearmode buisness seem a bit hackish perhaps?,. . report you experiance with it. cheers.

and look Kjell - no SPIRAL!

Post by **VilleK** » Mon Jun 29, 2009 3:41 pm

Nice! I spent a few minutes looking at it because it is so varied. I like the text-fragment that appears. Maybe you could have several lines of text displayed on random positions. And perhaps you can rotate the camera slightly sometimes to give it more depth.

The startup-glitch is because of a bug in zge that does not clear OpenGL backbuffer on startup. The workaround is to start with ClearScreenMode=0 and then set it to 1 after a small amount of time.

Post by **Kjell** » Mon Jun 29, 2009 5:30 pm

Indeed,

Make sure to clear both buffers ( ClearScreenMode 0 ) for the first two frames ( spawn model with a defined integer starting at 0, incrementing with one each frame, destroy at frame 3 ) since right now I see my desktop each other frame

K

jph_wacheski · Post by **jph_wacheski** » Tue Jun 30, 2009 4:09 am

hummm,.

kjell- try this ver. the clear starts at 0 and after a .2 timer sets to 1,. does that kill that odd frame desktop thing? nasty that.

This iteration is quite a bit more random,. has a zooming FOV and un //ed the cameraRotate noise,.( thought is was too shakey) the individual 'brushes' now randomly move in z, (on the direction change timer as well,.) perhaps a tad too chaotic ? anyway, with these timer starts on stuff, it is very random now,. i.e each time I run it is is quite different,. .
perhaps I should make it randomly set the level or random, on a random interval? to limit the chaotic-ness,. yet allow some insanitay for a time.

crazy that, eh.

y offs et · Post by **y offs et** » Tue Jun 30, 2009 12:40 pm

Like looking at pond water under a microscope, only colour inverted.

Post by **Kjell** » Tue Jun 30, 2009 6:10 pm

That didn't do the trick for me .. still seeing my desktop flicker through.

The danger of using a timer for this issue is that the length of the first frame could exceed the timer duration, causing only the first of two buffers to be cleared. Not sure though, there could be something else at work.

K

Post by **VilleK** » Wed Jul 01, 2009 1:13 pm

Works fine on my machine here at work (nVidia, Vista). I've set it to my screensaver to let co-workers admire it too

. But as Kjell says it is safer to set the ClearScreenMode-property using his suggestion instead of a timer.

jph_wacheski · Post by **jph_wacheski** » Wed Jul 01, 2009 3:38 pm

Ok here is a new try. and an exe ver. to try as well,. I ticked on the full screen button as for this one,. I added a new brush element,. just a line., not sure about it yet,. but interesting.

I like the effect this creates, once I get this flickering buffer (humm good name perhaps) issue sorted I may attempt to do a game in this style,. not sure it will work, as it would be quite strange (slow?),. but untill we get a FBO it is worth an experiment or two,. .

Post by **Kjell** » Wed Jul 01, 2009 7:34 pm

Hi jph,

Not sure what you changed, but it did the trick this time

K