What terminology do we use for an effect like we see on the PS3 XMB menu - the whispy, smokey, watery, plasma-ish type effect?
Like this:
Is it a particle thing? A Perlin noise thing? Something created with the motion blur of a number of bezier curves moving with sine values?
Of course... I am curious and have been trying to emulate it to educate myself... I started with a single 4-control point bezier curve where each point moves up and down on the Y axis tied in to some sine values... looks neat - but nowhere near as neat as that - looks better when I add 4 more bezier curves with different control points... no motion blurring yet, but that might make it look even better - however - the main question is - I'm not even sure I'm using the right kind of algorithims for this. Has anyone got any bright ideas?
I was lucky enough for work to buy me a PS3 to do some investigations on the Cell chip - been there and done a bit of that now with the boring "Get Work Done" type of algorithms - very interesting but I'd always wanted to see if I could do some fancy OpenGL stuff with the ATI thing inside it. Sadly it seems we'll be locked-out from that by Sony for the time-being... but at least, I thought, I should take a look and try to understand what kind of coding is being used to create that funky (but simple) menu effect.
Registriert: Di Mai 18, 2004 16:45 Beiträge: 2622 Wohnort: Berlin
Programmiersprache: Go, C/C++
I think, that are some Bezier based Shapes who use a faded Texture.
Create 2-3 Textures where the top is white and the bottom black, add some noise and gauss.
Add this texture on the Shape and change the alpha value of the vertice on the left and right side.
A different alpha value for every Shape let it seem a little bit random.
_________________ "Wer die Freiheit aufgibt um Sicherheit zu gewinnen, der wird am Ende beides verlieren" Benjamin Franklin
Interesting. I now think I started down a wrong path with Bezier curves being displayed as lines.
I started tinkering and I got to something that looks like the following... the solid colours are just to identify the curves as they bounce up and down... I thought if I did enough of these and then enabled blending that it might start to look like what we see on the PS3 XMB.
Now I no longer think that. I don't think this will provide what I want.
Bezier patches on the other hand... maybe...
This is where I got to, just in case anyone is interested - should compile easily - just sitting on a TPanel called pOGL... it's a bit 'brute force' I think - not very eloquent.
Mitglieder in diesem Forum: 0 Mitglieder und 6 Gäste
Du darfst keine neuen Themen in diesem Forum erstellen. Du darfst keine Antworten zu Themen in diesem Forum erstellen. Du darfst deine Beiträge in diesem Forum nicht ändern. Du darfst deine Beiträge in diesem Forum nicht löschen. Du darfst keine Dateianhänge in diesem Forum erstellen.