Messages

10966

[Max] I need help! / Re: Displacement Maps

« on: 2014-11-21, 19:21:16 »

Already tried that Maru... put displacement to 1% and it still spikes. Am I doing something wrong?

Where did you change that value? I don't remember any percentage-driven setting for displacement. What version are you using?

10967

[Max] I need help! / Re: How long to render

« on: 2014-11-21, 19:18:37 »

You can stop rendering when you think your image looks ok (for example when there is no visible noise or no aliased edges). There is no formula for this. Rendering time depends on the kind of scene you are rendering. You can also set Corona to stop rendering after a given number of passes or after given time (progressive renderer tab). Usually after some time the image will not change at all after each new pass - then you can consider rendering finished and stop it.

10968

[Max] I need help! / Re: Displacement Maps

« on: 2014-11-21, 18:24:42 »

Use min/max displacement level in material's settings. Hope it helps. :)

10969

[Max] I need help! / Re: Problem with clean displacement

« on: 2014-11-20, 17:52:06 »

If you want your final effect to look like this https://forum.corona-renderer.com/index.php?action=dlattach;topic=5967.0;attach=24227;image then you should use a different map for displacement. The one you are using in your pictures from Corona has no transition between black and white so the edges are rough . Your Vray rendering (the one I linked above) has displacement with less steep edges. It would require additional blurring. You can achieve this procedurally by using gradient ramp map. Maybe Vray uses filtering/blurring for displacement maps automatically? Or am I missing something?

10970

Gallery / Re: Casa Spodsbjerg

« on: 2014-11-20, 14:22:58 »

Maybe it's just bad mapping? Are these textures hi-res? Using that lazy uvw script might help.

10971

[Max] Resolved Bugs / Re: CoronaLight with IES Visibility issue

« on: 2014-11-19, 19:50:51 »

Hmm. Daily build Oct 14 2014 here. Here is my ies light. Did you try with a different ies file?

10972

[Max] Resolved Bugs / Re: CoronaLight with IES Visibility issue

« on: 2014-11-19, 18:30:14 »

Is it visible when you are looking at the light perpendicularly? Maybe it's related with this: https://forum.corona-renderer.com/index.php/topic,2674.msg19710.html#msg19710

10973

[Max] I need help! / Re: Corona Specular Highlight Flicker / Jitter

« on: 2014-11-19, 17:07:43 »

Hmm... then apart from changing leaves material you can edit the hdr and remove/soften the sun and use it as reflection override. But that's only if you are ok with such faking. Otherwise I think it's an effect that happens in real life if leaves are so reflective.

10974

[Max] Resolved Feature Requests / Re: Disable reflective caustics

« on: 2014-11-19, 09:36:25 »

Just remember that MSI does not affect only caustics but also GI. It cuts off intensity of light being bounced off of objects. The conclusion coming from this thread is that it's not a good idea to hit F9 and then significantly change exposure value. It's best if you set your desired exposure value first, and then render image.

10975

[Max] I need help! / Re: Corona Specular Highlight Flicker / Jitter

« on: 2014-11-19, 09:30:14 »

You can disable sun's visibility in reflections or tune the material of the leaves (lower reflectivity, lower glossiness).

10976

[Max] I need help! / Re: Slow rendering with materials

« on: 2014-11-18, 19:35:48 »

Thanks guys for the fast replies.

-What kind of glass are you using?  Very simple and no caustics & absorption.
-How is the lighting made? It's vrayhdri map in the corona env map.
-How is the background image added? also through the corona env map
-What are your render settings? See image - PT + PT, I know the hd cache would be faster. MSI is default.
-Are you using multi/sub-object materials anywhere? Yes quite a few, is that a problem...!? :-(

But does the glass have thickness?
Can you try hiding window glass and see what happens?
I would suggest using PT+HD.
Reset light samples multiplier to 1 or 2.
If MSI is at 25 then it's not default. It should be 20 but it's a tiny difference so we can just ignore it.

About the multi/sub materials, I remember there were some problems with them. Especially when there are things like mixed glass-nonglass faces. This would probably require some more research.

Some of the noise could also be caused by this:
https://forum.corona-renderer.com/index.php/topic,5628.0.html
In this case I think background works like light. That's why I pointed this as a really serious issue.

I can also see your glass has diffuse colour. Set it to 000 black or set diffuse level to 0.

10977

[Max] I need help! / Re: Slow rendering with materials

« on: 2014-11-18, 17:41:38 »

Here we go again. :)

-What kind of glass are you using?
-How is the lighting made?
-How is the background image added?
-What are your render settings?
-Are you using multi/sub-object materials anywhere?

Also, did you try overriding material only on some of the objects? For example on the reflective floor? Does it speed things up?
To me, this looks like reflective or refractive caustics' fault but I'm not sure.

10978

[C4D] General Discussion / Re: Sampling balance in cinema 4d

« on: 2014-11-17, 13:53:31 »

Well, sampling settings depend on the kind of scene you have. So please tell us more about your scene, preferably post some pictures.

10979

[Max] I need help! / Re: Corona's bucket is so weird

« on: 2014-11-15, 10:28:05 »

I think their size should be customisable and they should have visible frames, etc... but we just need to wait for all of this.

10980

[Max] I need help! / Re: Corona's bucket is so weird

« on: 2014-11-14, 20:54:08 »

I'd like to encourage new user to use the search button. ;)

You can find some useful information in these threads:
https://forum.corona-renderer.com/index.php/topic,5389.msg36920.html#msg36920
https://forum.corona-renderer.com/index.php/topic,5603.msg39540.html#msg39540
https://forum.corona-renderer.com/index.php/topic,5606.msg40337.html#msg40337

But we should still consider buckets as an experimental feature.