Topics

1

[Max] I need help! / Lot of noise when reflection/refraction override is enabled

« on: 2021-05-03, 12:01:02 »

Hi, when reflection/refraction override(black/gray/white color or tonemapped jpeg) in scene settings is enabled, masive noise is apearing using corona 6/7 latest daily. Corona 5 without issue.
Noise is visible in Direct render element, Indirect is very clean. Increasing LSM has almost no affect.
I am using only corona sky(Hosek Wilkie) in scene environment as a light source.
Tested 32s render, adaptivity off, UHD cache, GIvsAA 4, LSM 4, MSI 4, High.clamp 0, adapt. light off, random sampler new improved. Corona5 with portals, for corona6/7 no portals and env.sampler changed to adaptive.
Renders in corona 7 identical with 6.
Scene in attachment.

Any workaround? Similar issue mentioned @cecofuli in this topic https://forum.corona-renderer.com/index.php?topic=27953.msg170860#msg170860
THX.

2

[Max] I need help! / noise on lights switched off in lightmix

« on: 2018-08-28, 15:33:28 »

Hi,

I was reading somewhere on this forum/freshdesk, that some noise can ocure if I switch some light off in lightmix...or that lights are stealing samples....
Examples in attachment.

Q1: why I got better result on light switched off in interactive rendering than in normal production rendering? I switched force path tracing off so it should be the same settings as production render with HD cache...

Q2: is there some workaround how to use lightmix when I want to make several night renders with light variations ON/OFF without noise? Or lightmix has some limitation and I can only change intensity and color, but set light off is not recommended?
THX

3

[Max] Resolved Bugs / Convert bitmap to Corona bitmap - max crash after hit render

« on: 2018-05-25, 09:16:19 »

Hi,

if I convert all Bitmaps to CoronaBitmaps using corona converter and press render button, max immediately crash. I tested on two of my scenes.
Scenario 2: If I convert bitmap to cBitmap, then convert it back (cBitmap to Bitmap) and hit render button...no crash, no issue.

I am sending scene via private uploader (1527232598_coronaBitmapCrash.rar).

Max 2018.4, corona1.7.4, corona converter 1.42

4

[Max] I need help! / VP crossmap per element/face image distribution

« on: 2017-07-01, 13:38:12 »

Hi

I have one editable poly object with 16 polygons/elements. When I set image distribution mode to per element or per face, it is not working. If I switch to scanline everything works as it should.
Do I something wrong??
video link http://images.bzucko.sk/crossmapDistribution.mp4

max 2014, corona 1.6.1, crossmap 1.4.9

5

[Max] General Discussion / What's the magic behind One-sample High-D ?

« on: 2017-05-12, 10:52:23 »

I was trying new psycho sampler and I was surprised how fast it can clean up the noise. So I tested all samplers and choice  One-sample High-D, because it it clean up noise much faster than the default. I dont see any visual problems in interior and exterior daylight renders yet. Are there some disadvantages I dont know about?
And what ist the magic behind this sampler, why it clean noise much faster than default one?
What can be controlled in rendering process with random samplers?
Could we have another random sampler for test renders which will produces render with less correct GI(or fake GI) but almost noise free image after few passes ...something like vray with extremely low GI settings.

Too many questions :)) , but I hope will get answers on all of them. Thanks.

6

[Max] Resolved Feature Requests / CoronaNormal flip defaults according to 3dsmax preferences

« on: 2017-05-05, 21:54:41 »

Corona 1.5, 1.6. I didn't test this on older releases, maybe this issue is here from the beginning.

7

[Max] General Discussion / corona home page is down?

« on: 2017-04-02, 09:32:41 »

Some trouble with home page?
Also I was not able to login on forum few hours ago.

8

[Max] Resolved Feature Requests / Restart IR only if it is necessary

« on: 2016-12-09, 12:54:09 »

There are many cases which cause restarting IR:
opening ME, going into submap, rollout some material section, switching between material slots
staying with mouse over some object in viewport to popup small hint with object name,
pressing keys Q, W,E,R
selecting object but don't move it
...

9

[Max] I need help! / Forest Edge Map in CMasking_Mask element not working

« on: 2016-05-14, 14:26:09 »

It is possible to have forest edge map properly working in render elements?
I need B/W mask from some objects with concrete material for postproduction.
My settings in attachment

10

Gallery / Building lands for houses

« on: 2016-05-10, 12:41:43 »

Project of four building lands for houses.
Here are 12 panoramas www.rksbb.sk/ilias