This is early in the process but does anyone know what causes the pixel breakup where the glasses touch the cheek? Hope you do not need my settings. Not using any filtering, though. R

It almost looks like a shadow problem. Did you notice the "breakup" in the edge of shadow cast by the nose and to the right of the nose?

By the way very good picture, very nice pose, and I really like the eye's maybe turn the left eye back to the right just a touch. What settings did you use to render?

Hey papp. Checked disp maps, ray t, cast sh. Pixel samles @ 5. Focal is @ 3.5(in render options), but I'll change it. Camera is at 48f. I'm bracketing now to see if I can figure it out. 2 RayTlights at 500m and 750map. The rest are global.

Great picture!!! Stupid question. Is refraction being used?

Here's the other problem I'm dealing with...as you can see, Firefly crapped out after it did the hard stuff. I increased the pixel sample to6, and moved the primary light. Also upped the post filter to 2. No effect. Tried this with better glass quality, too. Did fix some other things. Hey Dave. There is some refract going on but have not messed with it too much. I think some blur is happening on her right side. This is good!

looks like it started coming out well. Might want to peek at your shadow bias a bit, too... awesome pic...

It's probably the shadows. Are you using raytraced or mapped shadows? If it's mapped, try turning up the resolution of the shadow map.

What quality did you set for the refraction node? Maybe increasing the quality can fix it. Or it could be self-shadowing - do the artifacts go away when you turn off shadows? You could try increasing the shadow bias on the light that casts these shadows. As for the stopping-halfway-through, thy lowering the bucket size.

Set shadow map to 2048. Should help with the shadow thing. Also, try switching off tex filtering if you have that on. For hangs: 1. As stewer says, lower bucket size - right down to 4 if nothing else helps. 2. Try one less raytrace bounce. 3. Remove unnecessary displacement maps/bump maps. 4. Use a set of slightly smaller texs - for instance on the body, since it's only visible on hand. Nice pic! You may need a sharper trans for the lashes - they look too 'unfocused' in relation to the sharpness of everything else. :] Fish

Thanks. Sure the fix is in the responses, here. R

For posterity, nothing in render options fixed this. Map size had no effect other than making the shadows crisper. Shadow bias had no effect on primary light as a disp. map (.010-2.00). Using Ray Trace as the primary, reducing bias to .010 maintained best pixellation, but was not a complete fix. I tested this with all other lights off and even with nothing but Ray Trace and Cast shadows checked. So...the theory award goes to DaveK! In killing refract, you solve this, but end up with a much less interesting effect. Also sunglasses! But I'm sure another glass option will work.

Did you try turning up the raytrace bounces? Can we get a look at the glass shader in the material room?