Messages

10276

[Max] Resolved Bugs / Re: Geometry motion blur destroys mesh

« on: 2015-05-29, 14:10:52 »

I couldn't recreate but maybe I don' know how. Can you provide more details? Or a scene where this happens (could be different)? How is this model made? Bones/skin/morph used? How is it textured? Which version of Corona is this?

10277

[Max] Resolved Bugs / Re: Bump map and smooth surface

« on: 2015-05-29, 13:14:03 »

Stronger bump would always intensify this effect. I don't know what's the magic behind this. Ondra could surely explain the technical reason.

10278

[Max] I need help! / Re: Cleanup Noise

« on: 2015-05-29, 12:52:27 »

Hi,

What was the exact amount of passes and rendering time here?

If the quality of DOF is acceptable and you are getting noise only in GI, then you should increase GIvsAA samples (16? 32?). You probably followed the guide to decrease GIvsAA when rendering DOF - well, it depends on the kind of scene. You can also try lowering light samples multiplier to 1 (if it won't introduce noise in direct light/shadows). Also revert UHD cache precision to 1 as with 2 there should be virtually no difference and it will probably be slower.

I think the noise is uniform, not only in out-of-focus areas, just you don't have much diffuse materials in the focused area so it is not visible.

The "50 samples" in material settings refers to "rounded corners" option only. You can see a tooltip when you hover your mouse over the samples text field (as everywhere else in Corona).

10279

[Max] Daily Builds / Re: Daily Builds

« on: 2015-05-29, 12:42:13 »

I was about to write what Romullus just posted. Plus this. The only difference is corona bitmap vs standard bitmap, no other changes done. Looks like it is displayed wrong in preview slots and uvw editor.

10280

[Max] Resolved Bugs / Re: Bump map and smooth surface

« on: 2015-05-29, 12:35:21 »

Yes, it looks like the old terminator. It will always be more apparent when using bump/normal maps.

10281

[Max] I need help! / Re: Moonlight?

« on: 2015-05-29, 11:54:21 »

My guesses would be:
-good spherical hdri
-create a fake image
-create a procedural map
-create a disc/sphere light and place it faaaaar away
Also, is it for interior, exterior? What other lighting conditions? What shutter time/exposure? I think color temperature has huge impact on realism for "night shots".

10282

[Max] I need help! / Re: How would you implement this material?

« on: 2015-05-29, 11:50:30 »

No problem here...

10283

[Max] I need help! / Re: RENDER TIME PROBLEMS

« on: 2015-05-29, 11:02:17 »

This could be hard to diagnose. I would suspect:
-vray hdri (not sure if it has any impact though)
-do you have bitmap paging disabled? https://forum.corona-renderer.com/index.php/topic,1662.msg12232.html#msg12232
-this portal + light setup looks suspicious, could you check if it's any faster without that portal by the light?
-bercon maps (not sure about speed impact again)
-reflective materials - looks like you are using them almost everywhere - walls, floor, etc

Maybe good idea would be to determine whether the slowdown is caused by materials, or lighting, or something else. For example you can try using material override (scene>render overrides) and put some matte grey material on everything. If it's faster, then the slowdown is most probably caused by materials. You could try deleting lights, etc.

Here are some hints on optimizing renders:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501983

10284

[Max] I need help! / Re: Fireflies and refractive/reflective objects

« on: 2015-05-28, 17:53:12 »

Sorry I can't post the scene or screenshots unfortunately.

Some maybe something similar, but more simple, where the issue is visible? Is the light inside of a solid glass object?

10285

[Max] Daily Builds / Re: Daily Builds

« on: 2015-05-28, 16:15:22 »

btw, is it possible that it will also prevent fireflies/noise when using very fine textures for example for bump maps or reflection glossiness / very small objects?

10286

General CG Discussion / Re: Photoshop Camera Raw burn my images

« on: 2015-05-28, 16:11:44 »

Ok, you are probably right. My bad. I also found a suggestion to convert exr to tiff first. But I'm not going to talk about something I have little idea about any more. :)

10287

General CG Discussion / Re: Photoshop Camera Raw burn my images

« on: 2015-05-28, 15:03:12 »

Try this:
http://blogs.adobe.com/pselements/open-jpeg-files-in-adobe-camera-raw-in-photoshop-elements/
(just use regular photoshop instead of elements and your exr instead of jpg :) , I'm not sure if it will make any difference though)

10288

[Max] I need help! / Re: Fireflies and refractive/reflective objects

« on: 2015-05-28, 14:59:41 »

I would suggest (if you can) to post at least renders, material settings, viewport screenshots. Scene would be best. :)

Usually fireflies are caused either by not enough GI samples, or not enough AA samples, so depending on the cause, you should either increase number of passes (or reduce gi vs aa to have it done in the same time) - to increase overall AA, or increase gi vs aa to have more GI samples.

There is also this guide, which may be helpful:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501983

10289

[Max] I need help! / Re: Flickering problem

« on: 2015-05-28, 14:47:56 »

Here are some tests. I am not sure how close to original I recreated this. Note "splotchy" shadow near the edge o the tube in UHD-still, animation preset seems to fix this. I think the splotches inside of the tube (in hd cache) are caused by hd cache taking care of caustics.

ps. sorry for the forum compression

10290

[Max] I need help! / Re: How would you implement this material?

« on: 2015-05-28, 09:47:09 »

You should plug this b&w map into refraction slot, not opacity. Also, do not use it as diffuse. Use pure black color.