Is the Special FX tutorial (number eight) broken??

gamebeavis · Post by **gamebeavis** » Wed Jun 27, 2007 3:16 am

When I run the special effects tutorial (number eight) the shadow generated dosnt look remotely correct. It shows a shadow, but its not smooth or solid, its more like a bunch of jumpy triangles with holes. It looks almost as if the polys of the dwarf are randomly letting light through the model. Does anyone know what would cause this?? Oh BTW I am running linux so I am using opengl.

roterl · Post by **roterl** » Wed Jun 27, 2007 6:20 am

hi
I'm working with linux as well and it run fine.
I had some problems with the graphics, but then I found out that I used OpenGL 1.2 (or 1.3), instead of 2.1

to checkout which version you use run

Code: Select all

glxinfo | grep version

and at look at the OpenGL version string.

Also make sure that you are using updated Irrlicht version.

Hope that help
Rotem.

hybrid · Post by **hybrid** » Wed Jun 27, 2007 8:03 am

I also had these problems from time to time. But it's most likely a problem with the driver (the X11 driver, not the Irrlicht one) since I also have lots of working Irrlicht examples on Linux.
I have at least the latest ATI driver (for x86-64) and the nVidia 9746 working.

gamebeavis · Post by **gamebeavis** » Wed Jun 27, 2007 7:35 pm

Yep, you were right, I am using OpenGL 1.3

So does anyone know how to update my OpenGL version under linux?

hybrid · Post by **hybrid** » Wed Jun 27, 2007 8:50 pm

You have to use the proper driver. The mentioned companies have downloadable drivers for Linux. There are also open source drivers which support 3d acceleration, however, I did not use any of those ever (simply because I do not care if I use binary only drivers). For the latter you might need additional X11 drivers and the OpenGL libraries, while the propietary drivers bring their own versions.