KeyShot Forum

Technical discussions => General discussion => Topic started by: Johnjoti on January 24, 2011, 05:50:33 AM

Title: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 05:50:33 AM
Jaggies in the reflection

(http://img190.imageshack.us/img190/3241/76280694.jpg) (http://img190.imageshack.us/i/76280694.jpg/)
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 05:51:00 AM
(http://img38.imageshack.us/img38/9692/85293867.jpg) (http://img38.imageshack.us/i/85293867.jpg/)


Two different HDRs
HDRi good quality and high resolution (10000x5000)

How to get rid of?
Title: Re: Jaggies in the reflection
Post by: Chad Holton on January 24, 2011, 06:11:44 AM
Hi grablin, I mean John  ;)

I haven't ran across this one before that I recall. But I'll make a stab at it...
Does this issue happen with any of the stock HDRs?
Is your ring scale real huge or real small?
Also, try playing with the environment height or scale to see how it affects the reflection.
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 07:29:51 AM
You can call me grablin  ;)
I do not remember the password for my old account. Now I John))


Ring size real small
QuoteDoes this issue happen with any of the stock HDRs?
This happens if HDRi contrast (there are sharp boundaries of black and white)
Does not happen if HDRi blurry (no sharp boundaries of black and white)

QuoteAlso, try playing with the environment height or scale to see how it affects the reflection.

the environment height or scale does not affect the removal of jaggies
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 08:00:27 AM
I changed the size of the ring, now it a great size
But it did not affect the disappearance of jaggies
Title: Re: Jaggies in the reflection
Post by: Chad Holton on January 24, 2011, 08:42:40 AM
Very strange indeed. I was guessing it was a very tiny ring in a huge environment so when you zoomed into the ring it would be like zooming real far into the environment, magnifying the environment's pixels. So if it is not that, I'm not sure what would cause it.
Are these HDRi's your own creation?
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 09:07:29 AM
Yes, this is my HDRi

I make them in the Modo. There's no limit to the size of images

Also did a test with the standard HDRi. Effect is the same: if the image contrast is going Jaggies



QuoteI was guessing it was a very tiny ring in a huge environment so when you zoomed into the ring it would be like zooming real far into the environment, magnifying the environment's pixels.

No, in my HDRi no such a large pixels
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 09:35:59 AM
For fun, I did a test with the same HDRi, but with another program for render

Strange, but no jaggies  :-\

(http://img816.imageshack.us/img816/4855/44703641.jpg) (http://img816.imageshack.us/i/44703641.jpg/)

(http://img820.imageshack.us/img820/46/ringt2.jpg) (http://img820.imageshack.us/i/ringt2.jpg/)

Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 09:58:27 AM
JeffM
This is a bug in Keysot code or something wrong with my settings??
Title: Re: Jaggies in the reflection
Post by: Chad Holton on January 24, 2011, 09:59:08 AM
I've rendered out a fair share of pictures and the reflections are always good. If you are getting the same results with stock HDRi and you deem the scales are fine - then it must be a setting you have turn on or off.

It might be worth bringing everything in again from scratch, when you have a chance. If you figure it out, let us know for future reference.
Title: Re: Jaggies in the reflection
Post by: JeffM on January 24, 2011, 06:40:07 PM
Thanks John, we'll certainly download your file and take a closer look.
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 24, 2011, 07:07:11 PM
Thanks in advance Jeff

After the download delete my link please
Title: Re: Jaggies in the reflection
Post by: JeffM on January 24, 2011, 07:30:02 PM
Downloaded and removed.

Will let you know what we find.
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 30, 2011, 09:19:27 AM
Hi Jeff!
so what of it? Is there any thoughts?
Title: Re: Jaggies in the reflection
Post by: JeffM on January 30, 2011, 10:08:33 AM
This is happening on some surfaces, so I've sent a test file to the development team.

Thanks!
Title: Re: Jaggies in the reflection
Post by: Johnjoti on January 30, 2011, 01:39:13 PM
I hope development team will fix a bug in the KS 2.2

Thanks!
Title: Re: Jaggies in the reflection
Post by: Johnjoti on February 15, 2011, 04:37:49 AM
2,2 is already finalized?
KeyShot 2.2.33 final?

Bug is not corrected!!  ???


Title: Re: Jaggies in the reflection
Post by: Johnjoti on March 09, 2011, 03:08:00 PM
Now I understood whence jaggies came

When I run the render from the Rhino, then is generated bip file old type and jaggies are present

But if I open a new project is not out of the Rhino, but from the root directory and import the geometry, then no jaggies

Blame the old plug-in for Rhino

For the sake of interest I checked it on the 2.1.25
In a new project is not out of the Rhino, jaggies do not appear
Title: Re: Jaggies in the reflection
Post by: guest84672 on March 10, 2011, 07:32:41 AM
This example is different. You need to increase your tessellation inside Rhino.
Title: Re: Jaggies in the reflection
Post by: Johnjoti on March 10, 2011, 09:47:09 AM
Quote from: Thomas Teger on March 10, 2011, 07:32:41 AM
You need to increase your tessellation inside Rhino.

What do you mean?
Title: Re: Jaggies in the reflection
Post by: Johnjoti on March 10, 2011, 04:46:26 PM
Here render from the Rino

(http://img850.imageshack.us/img850/7331/fromrhino.jpg) (http://img850.imageshack.us/i/fromrhino.jpg/)




Here I imported the same storage geometry from the bip file into a new project

(http://img705.imageshack.us/img705/1518/importedgeometryintoane.jpg) (http://img705.imageshack.us/i/importedgeometryintoane.jpg/)


I attached the file that generated when rendering from the Rhino
You can import geometry from this bip file to a new type file
and make sure that jaggies are formed is not associated with tessellation inside Rhino.

Use standard HDRi "HDRLightStudio_car_studio_medium"



Jhon G
Title: Re: Jaggies in the reflection
Post by: JeffM on March 10, 2011, 05:09:25 PM
Thanks for the update!

Could we get the Rhino file as well?
Title: Re: Jaggies in the reflection
Post by: Johnjoti on March 10, 2011, 05:39:33 PM
Of course