Field Flame Material
Updated: 4 Dec 2023
A 3D field material suitable for fire / flames.
Field Flame Material
Method #
A 3D field material suitable for fire / flames. The field density is used to control absorption and scattering, and the temperature of the field is used via black body simulation to output an emissive colour. The temperature is also used to control the opacity of smoke and flames: temperatures below the Smoke Max Visible Temperature value are rendered as smoke, temperatures above the Flame Visible Temperature value are rendered as flame.
The smoke and flame shading can be controlled separately with this material to some extent. The smoke opacity is controlled with the Smoke Density parameter. The flame opacity is controlled via the Flame Density parameter.
Parameters
These properties control the core behaviours of the node.
Parameter Details Flame Density
Scales the density/opacity of the flames.
Flame Emissiveness
Scales the emissive output.
Min Flame Temperature
The temperature threshold above which cells are rendered as flames.
Temperature Limits
If enabled, the temperature min and max values are used. otherwise the values from the field 3d root are used.
- Use root temperature : Conform to the temperature limits set by the root.
- Override : Override the root temperature limits.
Min Temperature (K)
The minimum temperature of the field for black body simulation, in degrees kelvin.
Max Temperature(K)
The maximum temperature of the field for black body simulation, in degrees kelvin.
Smoke Density
Scales the density/opacity of the smoke.
Smoke Tint Colour
Tints the smoke.
Smoke Scatter Colour
Controls the ratio of scattering vs absorption per colour channel for the smoke.
Smoke Scattering
The ratio of scattering vs absorption for the smoke.
Max Smoke Temperature
The temperature threshold below which cells are rendered as smoke.
The properties control the time at which the node is active. See Timeline for editing time segments.
Parameter Details Duration
Control the duration of the node’s time segment.
- Composition Duration : Use the length of the composition for the node’s time segment duration.
- Custom : Set a custom duration for the node’s time segment.
Node Time
The custom start and end time for the node.
Duration (Timecode)
The length of the node’s time segment (in time).
Duration (Frames)
The length of the node’s time segment (in frames).
Time Segment Enabled
Set whether the node’s time segment is enabled or not in the Timeline.
Inputs
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Flame Density | Scales the density/opacity of the flames. |
| Flame Emissiveness | Scales the emissive output. |
| Min Flame Temperature | The temperature threshold above which cells are rendered as flames. |
| Temperature Limits |
If enabled, the temperature min and max values are used. otherwise the values from the field 3d root are used.
|
| Min Temperature (K) | The minimum temperature of the field for black body simulation, in degrees kelvin. |
| Max Temperature(K) | The maximum temperature of the field for black body simulation, in degrees kelvin. |
| Smoke Density | Scales the density/opacity of the smoke. |
| Smoke Tint Colour | Tints the smoke. |
| Smoke Scatter Colour | Controls the ratio of scattering vs absorption per colour channel for the smoke. |
| Smoke Scattering | The ratio of scattering vs absorption for the smoke. |
| Max Smoke Temperature | The temperature threshold below which cells are rendered as smoke. |
The properties control the time at which the node is active. See Timeline for editing time segments.
| Parameter | Details |
|---|---|
| Duration |
Control the duration of the node’s time segment.
|
| Node Time | The custom start and end time for the node. |
| Duration (Timecode) | The length of the node’s time segment (in time). |
| Duration (Frames) | The length of the node’s time segment (in frames). |
| Time Segment Enabled | Set whether the node’s time segment is enabled or not in the Timeline. |
| Name | Description | Typical Input |
|---|---|---|
| Density Nodes | Shading node input for controlling the overall density of the field system. | Fractal Noise |
| Colour Nodes | Shading node input for controlling the overall colour of the field system. | Fractal Noise |
| Emissive Colour Nodes | Shading node input for controlling the overall emissive colour of the field system. | Fractal Noise |
| Flame Colour Ramp | Colour ramp input to control the colour of the flame material. | Colour Ramp |