light and shadow
I'd like to pose a technical question. I am quite familiar with the color theory in general (we had that class back at Academy), and rules and guidelines in particular, yet there are some instances in which I am not 100% certain about the correct procedure.
For instance, one of those guidelines is that the lightest dark is darker than the darkest light. (It is not always valid. I mean - it only applies to certain kinds of light under certain conditions. In overcast light, such rules do not apply. Even in sunlight, a very light ground surface can significantly raise shadow values.)
What I'd like to know is how one shoud draw an area in light which local hue is equally dark or darker than the shadow? Take an apple for instance (or people with really ruddy cheeks). Apple may be yellow/green in hue, appearing rather high value in light, but there is large dark red spot which is partially in light and partially in shadow. That intense, dark red is of equal value as adjacent shadow. If one draws it as he sees it, the drawing may look somewhat odd; the apple will appear flat with oddly looking shadow. I mean - form shadow will go nicely around the form, creating the illusion of roundness, but the shape of adjacent red spot of equal value will confuse the viewer. What one should do in that case?
Should one neglect what he sees in order to create a convincing illusion of form? Should he draw the mentioned dark spot (or say, ruddy cheeks) lighter than it appears, in order to prevent merging it with the shape of the shadow ?