DOF Confusion

[Infrared digital]

For the life of me I cannot get Dof to work. The attachment shows the settings so, if anyone can shed some light on this - I will be most grateful.

Units are metres.

Thanks

N

http://www.inlightin.co.uk/images/Im...0Confusion.jpg

[joconnell]

Make your f- number smaller - it'll open up your lens a lot more - as a result it'll let more light in and burn out your render so turn up your shutter speed to compensate. Try dropping your f number to around 2 and bring your shutter to around 125 off the top of my head - get the blurriness correct and use shutter to expose.

[Da_elf]

Also the settings in the render rollout have no effect on your scene when using a vray camera. you can just turn that dof off and just leave the cameras dof on.

[Infrared digital]

Ok, got it.

F-number = 0.1
Shutter Speed = 100,000
Film Speed = 100

Thanks for your help.

Incidentially, if I wanted to do Dof in post (After Effects) is there a plugin that will allow me to do that ? Something similar to Richard Rosenmans Photoshop plugin.

[joconnell]

Try something like lenscare by frischluft - It can use a vray depth channel render element as a control layer so you can pull focus and so on - does nice puffy highlights too.

[Da_elf]

either that or we get richard to update his plugin for AE hehehe
does lenscare also have the option to use the coverage channel?

[LarsSonparsson]

No, lenscare use only z-channel.
But it's still best looking post dof.

[Neilg]

Watch those 2 grids in front and behind of your target - theyre the DOF guides and note when something starts to get noticably blurry.

[Infrared digital]

I'm finding this too difficult to get predicatable results.

When I zoom into an object - the focus grids become very narrow and therefore make the focused area minimal and relatively useless. To remedy this, I increase the f-number but then the shutter speed needs to be modified.

Anyway, looks like it will have to be done in post.