wollscheid wrote:

Hi list...! gem questions... when I save a picture with pix_write 2 things happen

• automatically 5 zeros are added to file-name.

How do I get rid of those?

this is a feature not a bug. if you want to write a series of images, it is normally a good idea to have them numbered consecutively. gem does not know whether you want to write only one single frame or a sequence of 1000.

• when opening the picture with another program (like photoshop) it

appears inverted and upside down... How can I change this with in GEM?

the problem is due to the way image-data is handled in openGL (and GEM is an openGL-application) and in other 2D-applications: openGL assumes that 0,0 is the lower-left corner; most image formats assume that 0,0 is upper-left; this makes images written with [pix_write] upside down.

of course one could flip the image before writing it to disk, but i haven't done so for the sake of speed;

since stills are offline by nature and it is very simple to flip the image with your favourite offline editor (imagemagick, photoshop if you prefer) i rather don't bother the CPU in a realtime environment with such tasks.

but of course you could always turn the camera to be bottom-up (like [view 0 0 4 0 0 0 0 -1 0() ; you can also swap left-rigth with the "perspec" message.

i don't know what you mean by "inverted" though.

mfg.asd.r IOhannes

Cheers Achim

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