Photoshop Layers and Max Alpha Channel Question

[Neil Woodhouse]

Greetings,

 

I am currently working on a Viz for a Town Planner. The planner has sent me 2 photographs ( different viewpoints ) and a set of plans for the property that is to be built behind the existing house.

 

I have decided the best way to approach this is by layering the images.

 

I would like to have the 'rendered' image from Max with a transparent background. Awhile back someone explained to me how this was done in MAX, if i remember something to do with the alpha channel and you get 2 images. I've forgotten how to do this, can someone refresh my memory please.

 

Next.

 

I want the Max rendered image to be 'behind' the image that the TP has supplied me ( the new property is behind the old one ). I'm no expert on layering in Photoshop. Again can someone point me in the right direction please.

 

The end result that i want when the images are layered is that the new property can only be seen where it should be e.g. part of the gable end, a side door etc

 

Regards

 

Neil Woodhouse

[Ron Schatz ASAI]

You are looking to comp new in to old, a layer mask on the Max image layer, over the existing photo is my most common way of do is.

Does Max save a 32bit tif? if so when you load it into PS the image should be automatically clipped and needs just a layer mask add to it(see PS layer mask.JPG) the jpg show a mask just add to the building layer, with the mask highlighted paint with any brush the color black to hide more of the building or hit the x key to swap to white to fix to much hiding.

 

That is all I have time for.

 

Good luck

 

rendered file over Photo and mask to fit.