Huge mesh file`s problem

[thomaslee1312]

I import a file with 6 millions tris into Octane render, and it rendered very very slow, and the response of the machine also turns very slow.

I am using Core I7 860, GTX 590 3G, 12G RAM, Windows 7 64bit.

is there any guy has the same ploblem?

[gabrielefx]

I import a file with 6 millions tris into Octane render, and it rendered very very slow, and the response of the machine also turns very slow.

I am using Core I7 860, GTX 590 3G, 12G RAM, Windows 7 64bit.

is there any guy has the same ploblem?

use a second gtx and turn off the display GPU. Use it for the final render only.

[Refracty]

The 590 GTX has two NF110 chips that you can select individually in the octane prefs.
You could deselect the "display chip" from rendering so that the system will respond fluid but that means that the render time will take twice as long.
Or like Gabriele indicated you could place a "simple" graphic card into the machine if you have a 2nd slot only for display purposes.

[thomaslee1312]

thanks for the comments above. But it only solved the display problem.

the huge scene now needs about 20 mins loading time into Octane render, and goes one pass per second, it will much more slower than using CPU render in Maya. Does that mean Octane render can not render such a big scene?

[t_3]

thanks for the comments above. But it only solved the display problem.

the huge scene now needs about 20 mins loading time into Octane render, and goes one pass per second, it will much more slower than using CPU render in Maya. Does that mean Octane render can not render such a big scene?

the poly size alone doesn't tell what's going on. i have a 7mio tris scene, which renders with 6ms/sec, and another 1mio tris scene, which renders with 1ms/sec. if you have lots of glossy and specular mats, emitters, lots of tiny surface coping each other, ... it will make things of course slower. and needs tuning - and usually there are lots of tuning possibilities...

EDIT: about the load time: if you import a 6 mio poly .obj into octane, the voxelizing process needs more than the 12gb system ram you have. means windows is swapping and this makes things extremely slow. add another 6gb or so (assuming you have 3x 4gb and might add another 3x 2gb), and the import process will need only a minute (or less).

[Refracty]

Rendertime: try direct lighting with the diffuse option, sometimes this brings great quality with speed increase...