Hello Processing community-

I've got an applet running in OPENGL that makes highway billboards fly towards the screen.
Each billboard consists of a PImage that is dynamically generated by messing around with pixels in PGraphics buffer and copying them to the PImage.

I am using one PGraphics buffer to draw all the billboards. (in other words only one PGraphics object in the applet).

I then use translate() and rotate() commands to place my PImages in 3d space

Once a board passes behind the camera, i regenerate an image in the PGraphics object, copy this to board's PImage, and reset the z coordinate on the board (i send it way back so it can come towards the screen again)

here is the current applet:
http://clementvalla.com/mcdunco/

Th problem i am running into, is that there is a slight lag every time i generate a new image in the PGraphics and copy it into the PImage.
I assume this lag is worsened by then sending the PImage data to opengl.

i am wondering if there is a way to bypass the PImage, and copy the pixel data directly from the PGraphics buffer to an opengl texture.

If this is possible, would it improve the performance of the applet?

any other suggestions would be really helpful, as i can't get this thing running smoothly, though it seems like it should be able to (but maybe that's wishful thinking on my part).

Thanks in advance.

Clement

you can draw a PImage directly via gldrawPixels, which is very fast. Then its no texture and only 2D.

see here -> http://processing.org/discourse/yabb_beta/YaBB.cgi?board=OpenGL;action=display;num=1211032462

greetings ascorbin