---
title: multiply
framework: scenekit
role: symbol
role_heading: Instance Property
path: scenekit/scnmaterial/multiply
---

# multiply

An object that provides color values that are multiplied with pixels in a material after all other shading is complete.

## Declaration

```swift
var multiply: SCNMaterialProperty { get }
```

## Discussion

Discussion After combining a material’s other visual properties with lighting and other information about a scene, Scene kit multiplies the color of each rendered pixel by the color this property provides. You can use this property to darken or tint a surface independent of the effects of lighting and other properties, or to add precomputed lighting to a scene via a shadow map. By default, the multiply property’s contents object is a white color, causing the property to have no visible effect. The figure below shows a material (with textures for its diffuse and emission properties) before and after setting the multiply property’s contents to a solid color. Notice that the multiply color modulates even the bright areas added by the emissive map.

## See Also

### Related Documentation

- [normal](scenekit/scnmaterial/normal.md)
- [emission](scenekit/scnmaterial/emission.md)

### Visual Properties for Basic Shading

- [diffuse](scenekit/scnmaterial/diffuse.md)
- [ambient](scenekit/scnmaterial/ambient.md)
- [specular](scenekit/scnmaterial/specular.md)
- [reflective](scenekit/scnmaterial/reflective.md)
- [transparent](scenekit/scnmaterial/transparent.md)
- [shininess](scenekit/scnmaterial/shininess.md)
- [fresnelExponent](scenekit/scnmaterial/fresnelexponent.md)
- [locksAmbientWithDiffuse](scenekit/scnmaterial/locksambientwithdiffuse.md)