Frontendplace Blog

Sharing Frontend developing ideas

Removing multiplied layer or ambient occlusion map

Posted by info on February 12th, 2007

Sometimes you merged one multiplied layer with another layer in photoshop and you don’t have the original anymore but you still have the multiplied layer. Here I found a way to remove the multiplied layer and restore to your original again. Doesn’t always works but you can give it a try. (For the 3D people reading this..)I sometime have it when I have a rendering in 3d with the ambient occlusion map multiplied into the original but want to remove the occlusion. When I have the occlusion layer rendered as a separate pass I can sometime restore some information with this trick.

original

original

step1

Situation: multiplied layer has been added to the original
step1
step2

step2

After a while you can’t get back with you history pallet and what now??

Take the separate multiplied layer and invert it.step1
step4

step3

Set the layermode in “color dodge” mode. Sometimes you need the linear dodge mode, don’t know why i’m not a color expert. Then merge the layers and your done.

step5
If you know how this works, send me a mail and I can add this to this tutorial. (mail form is under the about menuitem)