Viewer Settings

00 - Grids

Setting	Default	Description
Density Channel	Attributes A - R	Opacity source.
Flame Channel	None	How much is burning. Set on import.
Temperature Channel	None	Fire colour source. Set on import.
Velocity Channel X, Y, Z	None	Velocity components. Set on import.
Flame as Density	Off	Uses flames as density when there is no density grid.
Velocity User Scale	1	Artistic multiplier on calibrated advection.

01 - Density

Setting	Default	Description
Extinction	2	Absorption per world unit.
Albedo	Linear 0.0196	Scattering colour.
Ambient Occlusion	On	Darkens skylight inside dense smoke.
AO Strength	1	Amount of darkening.
AO Distance Scale	1	Lookup reach, relative to the scatter radius.

02 - Emission

Setting	Default	Description
Blackbody	Off, on with a temperature channel	Physically based fire.
Flame Strength	1	Scales temperature before the colour lookup.
Temperature Offset	0	Added Kelvin.
Temperature Min	500	Kelvin below which nothing emits.
Temperature Strength	1000	Brightness.
Physical Falloff	On	T⁴ emission scaling.
Emissive Scattering	On	Fire lights surrounding smoke.
Emissive Scatter Strength	30	Spill amount.
Use Scatter Curve	Off	Reshapes spill with Scatter Curve (viewer only).
Scatter Radius (voxels)	12	Spill reach. Also the BAKE SCATTER kernel.
Scatter Falloff	2	Lower values travel further.

Colorize Flames and Colorize Smoke appear while Blackbody is off: Source, Gradient Texture, Gradient Curve, range and Intensity.

03 - Remap

Setting	Default	Description
Remap Density / Density Curve	Off	Stored density to density used.
Remap Flame / Flame Curve	Off	Stored flame to flame used.
Remap Temperature / Temperature Curve	Off	Kelvin in, Kelvin out.
Temperature Curve Range (K)	6000	Curve span. Higher values clamp.

04 - Micro Detail

Setting	Default	Description
Micro Detail	Off	Enables detail noise.
Affect Only Density	Off	Leaves flames untouched.
Detail Noise	Puffy	Puffy, Rough, Cracks, Wispy, Grainy.
2D Texture	Off	Tri-planar noise.
Anti-Repeat	On	Hides tiling.
Detail Scale (tiles per metre)	2	Noise size.
Detail Erosion	0.6	Thin smoke removed.
Detail Edge Density	0.1	Erosion limit.
Detail Warp (voxels)	1.5	Lookup displacement.
Detail Fade Near / Far (cm)	1000 / 6000	Fade range.
Detail Velocity Multiplier	1	How much noise follows the smoke.
Detail Flow Cycle (s)	1	Shorter stretches less, longer cycles less visibly.
Detail Scroll (cm per s)	0	Constant drift.

05 - Loop

Setting	Default	Description
Preview Loop	Off	Plays the authored loop.
Loop Start Frame	0	First frame.
Loop End Frame	-1	Last frame. -1 is the sequence end.
Loop Blend Frames	10	Seam length, clamped to half the region.
Loop Blend Curve	S-Curve	Linear, S-Curve, Smoother, Ease In, Ease Out, Custom.

06 - Clip

Setting	Default	Description
Clip	Off	Cuts to a box.
Clip Min / Max (fraction)	0 / 1	Box corners per axis.

07 - Data Visualization

Setting	Default	Description
Velocity Mode	Off	Direction as colour, Magnitude ramp, Blend residual.
Velocity Scale	10	Magnitude at the top of the ramp.
Velocity Gain	1	Visualization multiplier.

RayMarching

#	Setting	Default	Description
1	Self Shadow	On	Volume shadows itself.
2	Use Light Cache	On	Biggest performance lever.
3	Light Cache Divisor	2	Cache resolution divisor.
4	Frame Cache Budget (MB)	1536	Memory for per-frame grids.
5	Shadow Step Size	1.5	Used with the light cache off.
6	Shadow Max Steps	64	Used with the light cache off.
7	Shadow Density	1	Extinction for shadow rays.
8	Step Size	0.5	Voxels per step.
9	Max Steps	1024	Derived from the volume when opened.
10	Jitter Strength	1	Hides banding.
11	Density Cutoff	0.0001	Skip threshold.
12	Adaptive Step Max	3	Longer steps in thin regions.
13	Progressive Refinement	On	Averages frames at rest.
14	Max Accumulated Samples	128	Refinement limit.
15	Mip Level	0	Sampled resolution.
16	Interaction Downscale	2	Divisor while the camera moves.
17	Playback Downscale	1	Divisor during playback.
18	Coarse Caches While Playing	Off	Cheaper caches during playback.

View

#	Setting	Default	Description
1	Exposure	1	Manual multiplier.
2	Tonemapper	Unreal	Unreal, ACES 1.0 SDR (OCIO), ACES, AgX-style, None.
3	Auto Exposure	Off	Meters the volume.
4	Auto Exposure Bias	0	Stops added to the metered exposure.
5	Auto Exposure Speed	2	Adaptation speed.
6	Background	Near black	Flat backdrop.

Show

#	Setting	Default	Description
1	Checker Opacity	0	Transparency reference.
2	Checker Scale	64	Square size in pixels.
3	Show Bounding Box	Off	Wireframe of the bounds.
4	Bounding Box Color	Blue	Line colour.
5	Bounding Box Width	2	Line thickness.
6	Up Axis	Z	Display only.
7	Show Ground Grid	On	Reference floor.
8	Ground Grid Spacing	100	Cell size. 0 is automatic.
9	Ground Grid Color	Grey	Line colour.
10	Ground Grid Width	4	Line thickness.
11	Ground Grid Opacity	0.1	Grid strength.
12	Ground Grid Extent	10	Reach, as a multiple of the volume's diagonal.