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Simulating DOF in 3DSMAX Renders Using Photoshop
Added on: Wed Nov 28 2001
Page: 1 2 

Here we can add a point in the middle and play with the curve so that whats white (the foreground) becomes black, we keep whats black as black, but the middle of the curve will make whatever is grey move to white.

This is how we set our focal distance:

To use these channels for DOF blur, select the layer you wish to work on, goto Select->Load Selection and choose the Channel which you have set up for the DOF of that layer. You might need to click on "invert" to get the right selection. With this done simply use Filter->Blur->Gausian Blur.

I don't recommend using too high a blur setting. Somewhere around 2 is a good setting but with preview turned on you will be able to judge for yourself. Do this for all of the layers you have setup to be blured. My last layer was just for fun to add specular bloom. I desaturated that image, Adjusted the curves to get a really high contrast image accentuating the highlights, added a little gausian blur, then changed that layers blending option to screen.

If all goes well you should be able to have an image with reflected DOF.

If you have 3D Studio MAX4.1 and higher with the render elements, things get alot easier when it comes to rendering out your elements. Be creative in your work and remember to think outside the manual. Just because a button does 1 function doesnt mean it can't be used in other ways.
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