Q&A: light source

Jasper Has­sard, US

ImagineFX - - Contents -


Mark replies

You’ll need to bear in mind three key fac­tors. Th­ese are the sur­faces lit by the light, the core shad­ows that ap­pear on the ob­jects in the sur­round­ing ar­eas, and the cast shad­ows of var­i­ous ob­jects.

All the sur­faces that face the light source will be lit, but the strength and sat­u­ra­tion of the il­lu­mi­nated sur­faces will drop the fur­ther away they are from the light. Core shad­ows ap­pear on the faces of the ob­jects fac­ing away from the light source.

It’s im­por­tant that your shad­ows are cast cor­rectly. You can make this process eas­ier by cre­at­ing ex­tra one-point per­spec­tive grids, with your light sources at the cen­tre. If you’re work­ing with a more com­plex en­vi­ron­ment, you can trans­form the grid you cre­ated for your lights on to the per­spec­tive planes to make them even more ac­cu­rate.

You can also strengthen the re­al­ism of your paint­ing by adding re­flected lights to the darker side of your ob­jects. The colour of th­ese lights will be a mix of your light source and the en­vi­ron­ment around your ob­ject, which will help to in­te­grate your ob­jects into the en­vi­ron­ment.

No­tice how the light af­fects the sur­round­ings and how it cre­ates lit

sur­faces and shad­ows.

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