Anim8or Community

General Category => General Anim8or Forum => Topic started by: Tof on October 31, 2009, 04:55:32 am

Title: Focal blur
Post by: Tof on October 31, 2009, 04:55:32 am

Hello,
I'd like to try to add DOF to some of my projects (using depht channel).
Is there a free software to do this? (I actually use Artweaver 1.0 for UV MAps and after effects but I think it cannot do that :'().

Title: Re: Focal blur
Post by: odp04y on October 31, 2009, 10:11:25 am

There's no way to do it in Anim8or, but you could probably do it in an art program by merging two pictures together. You'd have to experiment.

Title: Re: Focal blur
Post by: $imon on October 31, 2009, 12:03:08 pm

the option in photoshop is called 'lens blur' , maybe you can look for that in other programs.

Otherwise you can fake it a bit by going in artweaver - select by color - choose completely black or white (whereever you want blur) and use a gaussian blur on that selection. You might want to do it different times so that there is more blur towards the back.

Title: Re: Focal blur
Post by: kreator on October 31, 2009, 02:52:05 pm

bit of googling rsults in this .... http://www.anim8or.com/tutorials/from_users/focal_blur/focalblur_1.html

I think there was a program to do it as well, my brain is getting tired now..

Title: Re: Focal blur
Post by: odp04y on October 31, 2009, 04:26:50 pm

Nice I'd never seen that before, might try that myself.

Title: Re: Focal blur
Post by: $imon on October 31, 2009, 05:18:39 pm

kreator: that tutorial does show how to make a depth map in anim8or, but the method of applying the blur is a bit old. In photoshop the Lens Blur tool makes it a lot easier:

http://www.creativepro.com/article/photoshop-how-to-lens-blur-with-alpha-channels

But I don't think there are any free programs to do this with.. maybe you can download a trial version or something of photoshop, I'm not familiar with that.

Title: Re: Focal blur
Post by: floyd86 on November 02, 2009, 07:12:30 am

There is a easy way to create focal or depth of field blur. Render along with your beauty render a depth channel. Play a bit with the z-near and z-depth (1-1000 most of the time works) so that you get a clear black and white image of your scene. Now open photoshop and import your beauty and depth channel renders. Then place the depth channel as a mask for the beauty render. Then use lens blur on the mask.

Title: Re: Focal blur
Post by: Tof on November 04, 2009, 04:29:26 pm

Thank you for the Tricks, I think you help me to find a method to get something like focal Blur with Artweaver!!
I'll be happy if a 3d champion can take a look to the way I try and say me if it seems OK or not. (If yes, this can be a good new for those who cannot buy photoshop, like me...)