Lighting Attribute
Lighting Attribute
In the Lighting attribute, specify how to control the particle lighting.
Lighting Attribute Parameters
| Name | Description |
|---|---|
| Light Source | \(CPU only\) Causes each particle to create a deferred light, where color is equal to the Color value.
\[See the AWS documentation website for more details\] Valid values: 0+Default value: false, 0, 0 |
| Diffuse Lighting | Multiplies the particle color for dynamic \(diffuse\) lighting. Valid values: 0+Default value: 1 |
| Diffuse Backlighting | Specifies the fraction of diffuse lighting that is applied to unlit particle directions.Valid values: 0 \(standard diffuse and normals facing the light are lit the most\) to 1 \(omnidirectional diffuse and light affects all normals equally\).Default value: 0 |
| Emissive Lighting | Multiplies the particle color for constantly emitting light. You can add a value to make a particle appear as if it’s glowing. Valid values: 0+Default value: 0 |
| Environment Probe Lighting | \(CPU only\) Controls the amount of diffuse lighting that is contributed from environment probes.Valid values: 0 to 1Default value: 0 |
| Receive Shadows | \(CPU only\) Allows shadows to cast on the particles. Default value: false |
| Cast Shadows | \(GPU and geometry particles only\) Allows particles to cast shadows. Default value: false |
| Not Affected by Fog | \(CPU only\) Causes particles to ignore scene fog. Default value: false |
Note
When there is a single light source, some or all particles can appear unlit \(black\). To address this:
Add an environment probe to the scene to create indirect lighting. For more information, see the Environment Probe component.
Specify a value for the Environment Probe Lighting parameter to enable environment probe lighting on the particle system. For example, a value of 0.5 applies light from the environment probe at half intensity.