Back when i started working as a concept designer in the late 90′s this particular company i was at didn’t think i needed a computer, so i did all my rendering by hand. But renderings on black material often didn’t reproduce well (the light would go through the pigment and be absorbed by the dark substrate, as opposed to a rendering on white materials where the light bounces back from behind the pigments). And you couldn’t use markers on black paper obviously – which was a preferred method of coloring.
The solution i found was to illustrate in negative color and then make color copies using the “negative” setting. This resulted in super-dark blacks and great saturated color. To help, i made an inverse color guide showing what each Prismacolor lead would look like when reversed. But boy using photoshop would have been a lot easier.
Also, this is probably my last post.