Im having trouble focusing on objects that are close to the camera. I have a 2 node camera rushing through a tunnel of shape layer circles to arrive at a shape layer image of a cloud at the end. I have had my focus distance linked to a null which is really handy. As I push through the tunnel I animate the focus null from the start of the tunnel through to cloud at the end. The camera just wont focus on it though. If I move the layer further away in Z space and then move the focus null to it then I get focus. I don't really want to move it further away though. I like it where it is.
I'm dealing with a shape layer so it's not resolution.
I know that I could just reduce the blur to zero at this point but I would like real depth of field and also want to know what is causing this.
Is it just that After Effectrs has a minimum focus distance like a real camera would?
Never had this problem before. Any suggestions appreciated!
There's no minimum focus distance. Your problem is probably that you have two large an aperture.
If you have a sample project file stick it in drop box and I'll take a look later today.
Pre-compose the shape layers. You are probably running into some obscure sampling issue where the math can't determine whether it's behind or in front of a layer dur to the continuous rasterization of the shape layers.