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Procedural fire on a camera-facing card

In your harnessGodot shaderMIT

Fire on a single quad that always faces the camera: rising distorted noise shaped into a flame silhouette and coloured through a heat ramp, with no textures or particles.

Render of Procedural fire on a camera-facing card
The render its check recorded in Godot 4.7.2, 256 by 256 pixels.

What it takes and gives

Shader type
spatial
Render modes
unshaded, blend_add, cull_disabled, depth_draw_never, shadows_disabled
Parameters
core_color (vec4 = 1, 0.95, 0.6, 1), mid_color (vec4 = 1, 0.5, 0.08, 1), tip_color (vec4 = 0.6, 0.05, 0.02, 1), rise_speed (float = 1.6), noise_scale (float = 5), distortion (float = 0.35), flame_width (float = 0.55), flame_height (float = 0.9) and 1 more
Use it on
A QuadMesh placed where the fire burns; its bottom edge is the base of the flame.
Result
A flickering flame with a pale core and red tips that faces the camera from every angle.
Renderers
compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
Placement
res://baltor/godot_shaders/fire_billboard/

Limits. A single card: seen from directly above the flame flattens. Additive blending means it cannot occlude and looks weak on bright backgrounds. It casts no light; add an OmniLight3D for that.

Details

Kind
Godot shader
Engine
Godot 4.3 or later
Files
11 files, 54.0 KB
Licence
MIT
Declared effects
reads files, runs commands
Checked with
Godot 4.7.2, opengl3 compatibility (Mesa llvmpipe, Xvfb)
Checks
contract static, engine run, engine log clean, shader in scene, capture written, render not uniform, shader changes pixels
Techniques
Spherical billboard by replacing the modelview rotation, Height-weighted domain distortion, Fractional Brownian motion turbulence with a heat colour ramp, Value noise with quintic interpolation and fractional Brownian motion
Tags
godot shader, spatial, fire, flame, billboard, procedural, vfx
Identity
library.supply.creative_originals.de44057a74139ce99fcb5f55.679b89bb018dd9b4
Version
679b89bb018dd9b4558c6f60b38b2234a979b68853405580c8a9f8872f7dbdd4

The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.

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