Corona Renderer Forum

General Category => Gallery => Topic started by: Nekrobul on 2015-02-12, 14:09:47

Title: Almost perfect coronar eclipse
Post by: Nekrobul on 2015-02-12, 14:09:47
Soooo yesterday while wrorking with very heavy exterior scene i saw this picture

(http://hostwave.com/plugins/imageviewer/site/show_image.php?idt=1e6045b996a6a1e412958bb39d3499fa&f=6603)

And decited, why not to try to copy it in corona.

And here is the result after couple of hours.

(http://hostwave.com/plugins/imageviewer/site/show_image.php?idt=f9f99862ad04b3834e55198942aba8f5&f=6605)
(http://hostwave.com/plugins/imageviewer/site/show_image.php?idt=3d4a1cf3dd8d1f4dabe10428bd174eb6&f=6604)

Rendertime 2h on doublecore xeon 24 treads, around 800 pases.

C&C are welcome.
Title: Re: Almost perfect coronar eclipse
Post by: Elviz on 2015-02-12, 14:22:57
Awesome!!
Title: Re: Almost perfect coronar eclipse
Post by: Nekrobul on 2015-02-12, 14:26:43
Forgot to attach raw render
Title: Re: Almost perfect coronar eclipse
Post by: ryan34side on 2015-02-12, 14:56:23
nice job !!! nice color

a question what is the process pour export to do raw render ?

thanks you?
Title: Re: Almost perfect coronar eclipse
Post by: Nekrobul on 2015-02-12, 14:58:49
nice job !!! nice color

a question what is the process pour export to do raw render ?

thanks you?

I worked with 32 bit ful float exr file using ArionFX integrated in to photoshop and after that to properly convert images in to jpg used Affter efects.
Title: Re: Almost perfect coronar eclipse
Post by: ryan34side on 2015-02-12, 15:15:06
thanks !!

i save image in exr ?
Title: Re: Almost perfect coronar eclipse
Post by: Nekrobul on 2015-02-12, 15:18:20
Yes it is better to save render output in exr, it contains lumination info wich might help in postpro.
Title: Re: Almost perfect coronar eclipse
Post by: ryan34side on 2015-02-12, 15:23:58
thanks !!!
Title: Re: Almost perfect coronar eclipse
Post by: borisquezadaa on 2015-02-12, 15:31:43
Tottaly nailed it!.
Sun is geometry or coronas?... how about the moon... it has displacement to achieve the jagged border or it was happy coincidence?
Title: Re: Almost perfect coronar eclipse
Post by: Nekrobul on 2015-02-12, 15:43:11
Tottaly nailed it!.
Sun is geometry or coronas?... how about the moon... it has displacement to achieve the jagged border or it was happy coincidence?

Scene setup is prety easy, sun is Sphere with corona light mtl, moon is sphere with default gray corona mtl and prety large geometry noise above it, Both are puled away from camera in to max distance ~1km or more and both are gigantic.

For camera setup and realistic DOF i used 200mm lens and 2,8f 70mm dof overide.

For enviroment i used corona sky+sun set to 89.7 angle and placed just behind the spheres to achive correct collor of sunset and i used prety low values for both. Aroud .05-.03.
Title: Re: Almost perfect coronar eclipse
Post by: fellazb on 2015-02-12, 16:13:08
Nicely done. I do however miss the strong backlight behind the grasses which you can clearly see in your reference image.
Title: Re: Almost perfect coronar eclipse
Post by: Nekrobul on 2015-02-12, 16:18:12
Nicely done. I do however miss the strong backlight behind the grasses which you can clearly see in your reference image.

I agree with that i thik i will fake it away by placing invisible planar corona light in front of grass

PS - i just have made a quick research in corona lights intensity and its behaviour in 32 bit space. And i made this reminder to be more obvious.