14. We’ll now create a lens blur. Open Depth.psd from the cover CD, copy it into the canvas, create a new channel layer (in the Channels palette) and copy-and-paste the depth map into the layer. Rename this layer ‘Depth’. With the ‘BG’ layer selected, go to Filter > Blur > Lens Blur. Where it says ‘Source’, you could choose a channel in which the lens blur will derive its blur data. Select Depth from the drop-down menu and set the blur radius to 20. The room should now be blurred at the back but in focus near the 3D model.
15. We’re down to final adjustments and tweaks now. For speed, open FinalAdjustments.psd and shift-drag it on top of the canvas. This document includes a premade shadow and some final adjustments in colour and contrast.
If you are not familiar with 3D, materials (or shaders) are properties of an object that are assigned to a 3D mesh. They control properties such as Diffuse (the colour of an object), Refraction, Glossiness, Shininess, Reflectivity, and more. In short, materials are what makes the object unique. The best feature about CS4’s 3D capabilities is that you can now paint texture maps directly onto the 3D model from CS4’s canvas. If you are a native 3D user, you know that texturing can be a pain, especially with complex models. However, CS4’s paint texture maps features are an easier alternative to 3D texturing programs such as ZBrush and Mudbox.
Who: New York-based Jeff Huang is a graphic artist and illustrator, specializing in digital illustration and print design; he also has experience of 3D modelling, animation, motion-graphics and compositing. His style namechecks graffiti, Surrealism, digital matte painting and 2D illustration, and 3D abstracts.
Software: Adobe Photoshop CS4
Time to complete: 2 hours
On the CD: Files for this tutorial can be found on the cover CD.