SQBVH

[neo2068]

There are still some cases where the sqbvh accelerator produces holes in the mesh.

I should have fixed this problem with the latest patch.

Yes, that fixes the problems I had.

[HoloFan]

I don't know wether my problem is fixed with the patch you mentioned because I can't compile lux myself.
I played a bit around with blenders OceanSim and when I turn the resolution value of the Simulation to 9 or higher, sqbvh crashes while loading the scene. I have tested it on a 4 Gig Machine with Windows 7 64bit and a 2 Gig Machine with Windows 8 Consumer Preview 32bit. With resolution at 18 the memory isn't nearly full on both machines so I guess it isn't due to running out of Memory.
I hope the test-Scene I attached helps and I don't have forgotten anything.
Thanks for your awesome work!

[Dade]

I don't know wether my problem is fixed with the patch you mentioned because I can't compile lux myself.
I played a bit around with blenders OceanSim and when I turn the resolution value of the Simulation to 9 or higher, sqbvh crashes while loading the scene. I have tested it on a 4 Gig Machine with Windows 7 64bit and a 2 Gig Machine with Windows 8 Consumer Preview 32bit. With resolution at 18 the memory isn't nearly full on both machines so I guess it isn't due to running out of Memory.
I hope the test-Scene I attached helps and I don't have forgotten anything.
Thanks for your awesome work!

HoloFan, your problem may have been fixed by this patch: http://src.luxrender.net/lux/rev/ad8af80e6fb1

Your scene is just an SQBVH with a single leaf where the leaf is a KD-tree including all real polygons, this is a side effect of how plymesh shapes are created at the moment (i.e. the old code has not been updated to take advantage of the new SQBVH). I have tried both normal rendering:

and hybrid rendering with the latest sources:

and they both work fine for me.

Note: how much faster is Hybrid rendering than normal rendering on my new hardware

[patro]

Hi Dade, my comment isn't something technical...
looking at both images i noticed that SQBVH converge faster than hybrid.
i simply noticed that the black dots are less in the SQBVH one
maybe i'm wrong...

[SATtva]

Patro, try to compare the flat duration of rendering of both images.

[patro]

i did...
hybrid 4:20 minutes and SQBVH 4:18 minutes, is this to what you were referring Sattva?
i was just looking time and black dots....

[SATtva]

Nope, you're looking at "Saved at" date/time. Look to the right of "Statistics", it's a duration of rendering.

[patro]

thank you Sattva