Messages

556

[Max] I need help! / Re: BRDF parameter

« on: 2015-01-06, 02:30:37 »

0 - Fong
1 - likes as Blinn
2 - default (Ashikhmin-Shirley. Some likes as Ward)
3 - Ward

Thank you for the answer!
Strange... I read alot about Corona Render, but I never see anything about this BRDF switcher...

557

[Max] I need help! / BRDF parameter

« on: 2015-01-06, 00:05:35 »

Hi guys!
I work with corona for some time, but only today I've noticed this parameter (see the attachment) which is visible only in slate mode of mat editor and only under Additional Params rollout. I'll be very grateful if somebody can tell what each number of BRDF parameter means (0-3)? And why this parameter is hidden so deep ?))

558

[Max] I need help! / Re: anisotropic reflection

« on: 2014-12-30, 10:15:08 »

Thanks for your replies!
I use Alpha 7.2 and Anisotropy rotation parameter is mappable there. It uses gray gradient to determine direction of specular spreading and it does it in world coordinates. It doesn't make any relationship between direction of specular spreading and orientation of the object with all it's microdetails which make this effect happened.

559

[Max] I need help! / Re: anisotropic reflection

« on: 2014-12-29, 21:29:19 »

Thank you very much borisquezadaa for your reply, suggestion and for the shared file!
I had the question "Why anisotropy oriented in world coordinates if the reason for this phenomena is scratches on the surface?" always when I had to use this kind of materials on surfaces which are oriented not directly vertically or horizontally. In attached files you can see the render with the shader from your file - it looks good, but it's not the result I'd like to get in this project. Also here is comparison "bump vs anisotrpy" just to see the correct direction of specular spreading. And here I've taken few photos of brushed metal object lit by linear lamp to see how it looks in real life. It's funny, that anisotropy works correct on simple objects as cylinder.

560

[Max] I need help! / anisotropic reflection

« on: 2014-12-29, 13:04:35 »

Hello!
I have a problem with anisotropic reflection. Is it possible to make direction of anisotropy related to the object local coordinates? "Anisotropy" and "rotation" parameters rotate the hotspot in screen coordinates and objects with the same material look different depending on their position and angle they are rotated.
Here are my examples and the material I need to imitate

561

Gallery / House near the lake

« on: 2014-10-04, 14:50:57 »

Hi.
Simple exterior scene I've made with Corona.
Hope you like it :)
Will be happy to know your opinion and maybe some advices how to improve it.

562

[Max] Resolved Bugs / CoronaMixTex doesn't work in bump slot

« on: 2014-07-27, 21:06:22 »

Hi. I use Alpha7.1 now and noticed that CoronaMixTex doesn't work in bump slot. Material looks like there no bump at all with any variants of mixing the textures in CoronaMixTex map. In other slots it works well.

563

Gallery / Re: Vegetation test

« on: 2014-07-25, 11:45:56 »

Thanks guys for your feedback!

564

Gallery / Re: Vegetation test

« on: 2014-07-13, 18:38:36 »

Thank you very much! It was my idea - to make a fairy tale's illustration.

565

Gallery / Vegetation test

« on: 2014-07-13, 11:58:33 »

Hi. I'm working with Corona during short time, but I like it very much.
This is my test picture - will be glad to see your comments.

566

[Max] General Discussion / Re: Corona Alpha4 Benchmark scene

« on: 2014-07-05, 16:35:27 »

Corona Renderer Alpha 4 benchmark scene
 Living room 100 passes
DUAL Intel(R) Xeon(R) CPU E5-2660 @ 2.20GHz
Time: 0:3:23, Rays/s: 6,247,793

567

News / Re: Sample interior scene

« on: 2014-06-30, 23:38:01 »

Thanks for shared scene!
I've done a test render and noticed that picture rendered with alpha7 (100 passes) is more noisy compare to the picture I've got from Corona Alpha4 benchmark scene. A7 did same 100 passes a bit faster. I've tried to render it with the same time as Alpha4 benchmark rendered 100 passes, but the picture is still more noisy. Should it be so?

Are you comparing to the benchmark (standalone corona)? Because not everything can be exported to the standalone, so the scenes can differ. The benchmark was also more optimized (for example portals were given higher sampling weight). This is not done by default so it is robust (and the A7 version uses defaults to demonstrate the point that you DONT need to change any settings ;)).

Thanks for your answer!)

568

News / Re: Sample interior scene

« on: 2014-06-30, 21:14:24 »

Thanks for shared scene!
I've done a test render and noticed that picture rendered with alpha7 (100 passes) is more noisy compare to the picture I've got from Corona Alpha4 benchmark scene. A7 did same 100 passes a bit faster. I've tried to render it with the same time as Alpha4 benchmark rendered 100 passes, but the picture is still more noisy. Should it be so?