Well persistence has seemingly paid off ....
Finally - I was able to get the DOF result I was looking for. (And to think - I was just about to turf my Laptop! .... well - not really).
So this 'issue' - getting weird black blobs in my rendered files is manifest when rendering LARGE POLY scenes ....
In my case, (given I'm on a 2GB VRam laptop) - it happened with a scene of 825,000 polys.
Now here's the work around. I 'laundered' the 825,000 poly scene through 'MANTIS LOD' (A low cost Decimator, coming in different forms. I went for the 'stand alone' version rather than as a 'plugin' variety. - $30 is all it cost me). I just set the slider to 50% - ie: I dialed the model back to around 400,000 polys - exported it, opened it in iClone7.2. (that is; from within the 3DXchange front door).
The previous version of the scene was still open in iClone7.2 so I simply 'hid' the old mesh so that the new version now displayed alone.
I then rendered it out with the DOF 'ON' - and bam ! - the black blobs were gone!
Feeling a bit braver I tried again - this time I used MANTIS at 90%, shedding just 10% of the polys .....
Got it into iClone, rendered with DOF - and bam ! - it worked again.
I had a 'gut' feeling by now - what if I just sent it through MANTIS and left the slider at 100% (no decimation)...
Yes - bam ! - worked again!
So what's going on here? - don't really know for sure...
All I know is that when trying to render this scene originally, the ONLY setting I could use on my laptop WITH THIS PARTICULAR FILE was the 'PREVIEW' setting, - anything else ('Final Render', 'Super Sampling 2x2', 'Super Sampling 3x3') - would all result in black blobs on my output image.
Somehow, MANTIS is dishing up the file (even with NO decimation) in a way that iClone is happy with. Something's altered.
Obviously I'll need to do further testing (when I get time) - so DON'T rush off and buy MANTIS based on MY results.
Suffice to say that in this particular case, when importing a largish DAZ set, AND engaging the DOF in iClone7.2, the difference between success and failure all came down to MANTIS laundering.
Here's my render .... It's my first attempt at getting a 'Cine-Style' look out of iClone. (I'm far from happy with it - seems 'blotchy' somehow - maybe the bricks - don't know; the reds don't seem right 😞 - but I got to start somewhere ...
75% of original size (was 671x19) - Click to enlarge
75% of original size (was 671x19) - Click to enlarge
◇◇◇ Start where you are. Use what you have. Do what you can. ◇◇◇ - Arthur Ashe
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Please be patient with me ..... I don't always 'get it' the first time 'round - not even the 2nd time! :( - yikes! ...
● MSI GT72VR Laptop, i7 7700HQ 4-Core 3.8 GHz 16GB RAM; Nvidia 1070, 8GB Vram ● iClone-7.93 ● 3DXChange Pipeline 7.81 ● CC-3 Pipeline 3.44 ● Live Face ● HeadShot ● Brekel Pro-Body ● Popcorn FX ● iRAY ● Kinect V2 ● DaVinci Resolve17 ● Mixcraft 8.1