First, as a side note, I’ve put up a separate page that lists all mecha and robot related posts I’ve made. You can access it from the list of pages above the changing header image.
Silhouettes are important and overly visited point in character design. To go directly to the point, a silhouette needs to be uniquely recognizable. This has gone to the point that we all recognize a ball with two smaller balls on top of it side by side as Mickey Mouse’s head, and that silhouette cannot be replicated and sold. This applies to giant robots as well, and if you’re into robots, the following ones should look familiar.
It’s not hard to decipher the distinct look from the three above. Roundy, blocky and organicy. We recognize Mazinger Z because of its overall body shape, but it’s head and Breast Fire panels is what makes it stand out the most. For RX-72-2 we see the usual Gundam V-Fin, the shield and that rifle. Proportions, beam sabres and legs also give it away. A lot of Gundams share a very similar silhouette and people can make a mistake, but that’s one thing that makes them a Gundam. For EVA-01 the overall shape stands apart from the previous. Those shoulder pylons are a dead give away, as are the legs and the overall lanky pose. The horn is also another element that gives it away, even thou the overall head shape would be a better signifier, but this image hides it into the left shoulder pylon.
To hardcore robophilist, recognizing silhouettes across the genre is not too difficult. Some are head scratchers. To a person who is just glancing at these, RX-78-2 looks like a Transformer.
There are thousands of giant robot designs out there, Transformers hitting several thousands. All franchises with numerous designs and have run for years, like Gundam, most likely are hitting well over thousand. I’m just throwing these as guesstimates, but it illustrates a problem; not all designs can be completely unique from each other, and often within a series there is a pre-existing elements that dictate certain elements of a design that makes it instantly recognizable. For Gundam, it would be the face or the V-fin, and exceptions do exist. This is also why TSFs look so similar to most people, as they see the silhouettes better than the detailing. A Gundam has colours to make it look different because of their toyetic aesthetics, but a TSF is very mundane in colours in comparison, and due to many factors a lot of them share a similar silhouette by design.
An idea and purpose can dictate the look of the design just fine, but that’s just one initial approach. A method I’ve seen car designers use is start with a scribbled blob of non-descriptive nothing and see what’s in there for them.
I’m not terribly good at this myself, but it does give some good ideas. A friend of mine showed me this some years back, and he can do some nice sketched renders. Do check his Twitter for neat stuff. Out from all those blobs, I lined out one that could be a neat starting point for a head design. This may seem stupidly easy and nonsense, but it does not negate the points of learning how mechanics works. This is a very useful method to test out shapes, and while I didn’t have no rhyme or reason to these, you can make sharper corners, more cubic or whatever tickles your fancy kind of shapes. Whatever suits your needs. Essentially, this is sidestepping the need to look for a shape, when you allow your subconscious to vomit out everything, and after that you just see what you have on paper. Of course, everything from this would need a large amount of detailing, but that’s later when you’ve locked down what way you want your piece to look in overall terms.
You can apply this to one part alone, or the whole damn thing you want to make. However, do keep in mind that this is just the very barest of starting points, as you’d still need to collect the shapes together into a cohesive whole and make them look right. That head design, if I were to create a whole linework just based on that, it would have swooped main curves with sharper angles to accent it. You can do as many shapes as you want, and often only a handful can give you some idea what you may want to go with. Much like everything else, you train this as you do it, and you can see I’m not the master of this approach due to preference of scribbling lines from whatever visual image I in my head. However, I do see this a more useful and easier way to approach of How do I get shapes? I guess I’ll use Gundam as an example how to approach a design where there are set rules, thou you could just read the rules in TSF design posts for that.
Try this out if you’re in a block and can’t find the right shape. Sometimes what you need isn’t strict shape and form, but splattered scribble to give you a hand. Y’know, see the forest from the trees.