Cycling 74 » Topic: jitter 3d model large polygon count problem

jitter 3d model large polygon count problem

audiovisualist — Thu, 14 Feb 2013 14:21:46 +0000

hi,
for a installation i have to make an obj/stl 3d model loader and player. My problem is, that the object has 1mio polygons. After loading them into the gl model, i see the object on the window but then max hangs each time. What is the maximum polygon count that i can use? Or is there any way to increase the memory? I can’t reduce the polygon count of the object, this its needed for the installation. i have an mbp from 2011.
thanks in advance.

Re: jitter 3d model large polygon count problem

audiovisualist — Thu, 14 Feb 2013 16:02:09 +0000

i forgot to mention that the .stl file size is about 100mb.

Re: jitter 3d model large polygon count problem

Rob Ramirez — Thu, 14 Feb 2013 19:15:32 +0000

there’s a few things you can try.
are you reading in the file while the renderer is being banged?
you can try turning off the render qmetro, read the file, bang the render *once* (this causes the opengl structures to be built), and then turn the metro on.

you can try changing the @mode attribute to vbo or displaylist.

you can try enabling or disabling various file processing options:
find_instances
fix_normals
gen_normals
gen_tangents
optimize

let us know if any of that helps.

Re: jitter 3d model large polygon count problem

audiovisualist — Mon, 18 Feb 2013 10:24:04 +0000

Thanks Rob,
your suggestion with the bang before starting the metro works, also the changing in the mode is working.
many thanks.