How to Shade in Photoshop
Shading in Photoshop means building up darker values to give objects volume and depth, and the most direct way to do it is with a multiply layer. Create a new layer, set its blend mode to Multiply, and clip it to your line art or base color. Pick a soft brush, choose a shadow color slightly darker than your local color, and paint where the light would be blocked. You can lower the layer opacity to keep the effect subtle and natural.
More from this site
Keep reading the latest coverage
Choosing and Applying Shadow Colors
A common mistake is shading with black or gray. Instead, sample the local color and push it toward a cooler or warmer hue depending on the environment. Cool shadows often look more convincing than flat gray because they mimic how light color shifts in the real world.
Dodge and Burn for Controlled Shading
The Dodge and Burn tools let you paint light and shadow directly onto a merged layer set to a low exposure, usually 5 to 10 percent. Dodge the areas hitting direct light, and burn the recesses. This method keeps shading tied to the underlying texture and avoids harsh, flat strokes.
Using Adjustment Layers for Subtlety
Curves and Levels adjustments clipped to your shadow areas give non-destructive control. Pull the curve down on a Multiply or Soft Light layer, then use a layer mask to paint the shadow only where you want it. You can also add a Color Lookup adjustment to tint the shadows for a specific mood.
Blending and Refining
Shading rarely looks good right away. Use a soft eraser on a low opacity to soften edges, and build up the shadow in multiple passes. A grungy texture brush set to a low flow can break up digital flatness and help the shading sit naturally against the base color.