Digital Painting Digital Painting Light and Shadow

Question 1

What is the 'terminator' in painting a 3D form?

Accepted Answer

The boundary line between the lit and shadowed areas on a form

Answer

The software shutdown command

Answer

The outermost edge of an object's silhouette

Answer

The lightest highlight on a sphere

Question 2

How does the size of a light source affect the quality of shadows in a painting?

Accepted Answer

Larger light sources create softer, more diffused shadows while smaller sources create harder shadows

Answer

Larger light sources create harder, sharper shadows

Answer

Light source size has no effect on shadow quality

Answer

Smaller light sources always create softer shadows

Question 3

What is 'three-point lighting' in a painting setup?

Accepted Answer

A lighting scheme using a key light, fill light, and back/rim light to illuminate a subject from multiple directions

Answer

Painting with exactly three brushstrokes

Answer

Placing three highlights on a sphere

Answer

Using only red, green, and blue lights

Question 4

In painting a sphere, where is the 'highlight' typically located?

Accepted Answer

At the point on the surface where the light source reflects most directly toward the viewer

Answer

At the edge of the sphere farthest from the light

Answer

At the bottom of the sphere

Answer

Evenly distributed across the entire lit side

Question 5

What causes the 'penumbra' (soft edge) of a cast shadow?

Accepted Answer

Light from the extended area of a large light source partially reaching the shadow zone, creating a gradient transition

Answer

The darkness of the shadow color

Answer

The material of the surface receiving the shadow

Answer

The speed of the moving object

Question 6

What is 'indirect lighting' or 'fill light' in a painting scene?

Accepted Answer

Light that has reflected off surrounding surfaces to softly illuminate shadow areas

Answer

The primary light source aimed directly at a subject

Answer

A spotlight focused on the background only

Answer

Overhead light from the sky only