Fixed multiplier on the density field to control how opaque the volume is. If you are using a larger scene scale, you may need a smaller density scale.

How to apply the ramp to the emission amount. To have unbounded emission values, no ramp should be used.

A ramp mapping the density color into a final density color.

The input diffuse color will be remapped from this range to 0 to 1.

How to apply the ramp to the diffuse color. To have unbounded diffuse colors, such as from light fields, no ramp should be used.

A ramp mapping the remapped diffuse color into a final diffuse color.

Intensity of the emissive component for smoke visualization. Higher values increase brightness of the internal glow. For example, of the flames in a fire simulation.

The input emission amount will be remapped from this range to 0 to 1.

How to apply the ramp to the emission amount. To have unbounded emission values, no ramp should be used.

A ramp mapping the remapped emission amount into a final emission amount.

The input emission color will be remapped from this range to 0 to 1.

How to apply the ramp to the emission color. To have unbounded emission colors, such as from light fields, no ramp should be used.

A ramp mapping the remapped emission color into a final emission color.

An additional multiplier on the density field, applied after the Density Scale, when the volume is used for lighting. Increase this parameter to get darker self-shadows on low-density volumes.

Enable this toggle to control the appearance of smoke volumes lit with ambient light sources (by specifying Exposed Color and Occluded Color).

Color of smoke that’s receiving direct light from an ambient light source. The default white setting indicates that areas exposed to external lights are bright. You can set this darker than Occluded Color to achieve a more cloud-like look, where areas deeper within the cloud experience more light scattering and thus appear brighter. Set Ambient Colors must be enabled to control this parameter.

Color of smoke that’s not receiving any light from an ambient light source. The default black setting indicates that areas occluded from light are dark. You can set this brighter than Exposed Color to achieve a more cloud-like appearance, where areas deeper within the cloud (that is, those occluded from outside light) are more luminous due to a greater degree of internal scattering. Set Ambient Colors must be enabled to control this parameter.

Determines the intensity of self shadows from ambient light sources. The final amount of self-shadowing from these lights is controlled by the product of Density Scale, Shadow Scale, and Ambient Shadow Scale. The video demonstrates the value increasing from 0 to 1.

Controls the color of shadows cast by the smoke. The complements of these values act like additional density multipliers for light of each color (red, green, or blue).