In this article I would like to show you what kind of methods I've used to create my picture 'Autobot'. I always liked transformers, and the movie gave me a huge inspiration to build one. The car form of it is one of my recent car models, a 1975 Chevrolet Corvette Stingray. I used 3D Studio Max 9 and Vray for modeling and rendering, the postworks were done with Photoshop.
Because I wanted it to be able to move and transform, I had to create bones for it too. Actually, I started with the bones - I made a biped first and transformed it's parts to have a robot shape skeleton.
The modeling process looked like this: I modeled the robot's bodyparts after each other from the head to to feet, and when one part was finished, I looked for a section of the car's body that would look good there, cut it out and placed it on the robot like an armor, and linked them to the biped bodypart.
I always had to pay attention not to choose a section that is too far from robot part on the car in order to be able to create the transforming animation in the future. Not every armor parts are from the car body, but I tried to use as much as I can - you can see them darker on the pictures. For the whole robot (and the car too) I used poly-modeling and turbosmooth.
Modeling Wire 1
Modeling Wire 2
The car paint is a 4 layer VrayBlend material. The base layer has a low glossiness reflection and the red colour of the car with a fresnel type falloff texture, the second layer has black diffuse and a 1.0 glossiness fresnel white reflection. The third layer is the little dirt and dust on the paint, which means it is a simple black diffuse material with a dirt mask bitmap. The fourth layer is the damaged paint, so it has lightgrey diffuse and a low glossiness reflection, and a bitmap mask. This mask was used also at the VrayDisplacement map, to bevel the damaged part a bit. There aren't unique maps for every red painted part on the bot, I made 6-7 different versions and some have been used multiple times.
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