Let’s study a BIC crystal cap.
In a previous post, we saw how to make reflection on flat and transparent surfaces. Now, it’s about transparent volume. The degree of difficulty is a bit higher but still achievable by beginners.
Chou-Tac Chung – Bic Crystal cap, 2014
STEP 1|GET THE Right Proportion
Take your time tracing these curves. Undo with Ctrl-Z when needed. Redo until you get a satisfying result. Remember to use the ghost drawing that we saw earlier in the Basics Essentials.
Draw the thickness of the cap as well. It’s the first indicator of transparency.
STEP 2|DEFINE THE Inside lighting and shadow
Observe inside the crystal cap or anything transparent such as a glass for example.
You will notice: clear surface, gradients of shadow, and some small dark areas.
Emphasize on the contrast of wide clear surface and small dark (almost black) areas.
STEP 3|DEFINE THE Outside lighting and shadow
Now, we focus on what’ is happening at the exterior surface of the object.
Add some hatching to represent the main exterior shadow. The trick is to cover partially or fully cover the inside one that we did at Step 2.
Recommended: you can add a color background. More details at the following bonus.
BONUS | Optical illusion
TIP 18 How TO MAKE THE TRANSPARENCY OBVIOUS.
To do that trick, there is nothing better to draw something behind the object. We simply add an artificial background made of color hatching. What is shown behind the cap will be bended.
This quick tutorial need a bit of training. Remember to keep it simple.
At start, we have the tendency to overload the sketch of details.
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