I just finished a series of illustrations for a small project the office is working on in Honduras. The project is a memorial, therefore we wanted the illustrations to take on a meditative and quiet atmosphere. Two renderings were created of the same view to explain the different lighting scenarios a visitor would experience both during the day and the night.
The workflow used for these two images are similar to what I use for many of the illustrations on this site. Because I wanted the illustrations to have a "painted" look, I didn't overlay Sketchup linework like I normally do. Instead, I spent more time layering textures and manually painting in Photoshop.
Although I didn't show the linework as an overlay in the final image, I still like to keep it as a separate layer in my Photoshop files so that I can use it to make quick selections with the Magic Wand Tool.
The above image shows what kind of textures and detail level the Sketchup model contained. As you can see, the textures are basic. I knew going into these illustrations that applying textures in Photoshop was going to make or break the final result.
The Kerkythea rendering is the image I began with for the illustrations. I tend not to spend too much time tweaking the settings in hopes of getting a perfect rendering. This kills too much time. For this view, I really only focused on getting the shadows to render correctly and give the floor reflections. The darkness didn't bother me because I knew this would be fixed in Photoshop.
For these illustrations, correct textures were really important. I did not spend too much time adding textures in the 3D model because it is almost impossible to avoid the "tiling effect". Instead, I extracted stucco finishes right out of photos of local Honduras buidlings. Also in this step, I took the smudge tool to rough up the polished concrete floor and spent time using the burn and dodge tools to punch up the shadows and highlights.
The last step was to add color overlays. For this particular rendering, I probably had 5 or 6 different color overlays. For example, over by the doors, I used a soft white overlay to fade the trees in the background and brighten the light entering the space. I used a yellow overlay on the right side where the light is washing the wall to warm this area up. Over the entire image, I used a light orange overlay. Each of these layers are serving a particular purpose, however they all bleed into each other bringing a level of cohesiveness to the overall image.
The above images are property of Paul Lukez Architecture. More information on this project can be found at www.lukez.com