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godot shaders

Noise dissolve with a burning edge

Dissolve a mesh by discarding fragments where 3D object-space noise falls below a threshold, with a glowing ember edge and a charred band behind it. Drive the threshold from a script or let it loop.

Recorded render of Noise dissolve with a burning edge

What this component contains

  • ATTRIBUTION.md
  • LICENSE
  • README.md
  • component.json
  • demo.tscn
  • inspect_shader.py
  • material.tres
  • noise_dissolve_burn.gdshader
  • preview.png
  • test_package.py
  • verification/native.json

How it works

Shader type
spatial
Render modes
cull_disabled
Parameters
albedo (vec4 = 0.82, 0.78, 0.72, 1), roughness (float = 0.6), dissolve (float = 0.45), noise_scale (float = 4), edge_width (float = 0.04), char_width (float = 0.08), edge_color (vec4 = 1, 0.42, 0.06, 1), ember_color (vec4 = 1, 0.9, 0.55, 1) and 3 more
Result
A mesh with holes eaten into it, rimmed by orange glowing edges and a dark charred border.
Renderers
compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
Placement
res://baltor/godot_shaders/noise_dissolve_burn/

Recorded checks

godot 4.7.2.stable.official.ed1daf0bf

  • contract_static
  • engine_run
  • engine_log_clean
  • shader_in_scene
  • capture_written
  • render_not_uniform
  • shader_changes_pixels

Limits to consider

Discard disables some early depth optimizations, so large dissolving meshes cost more to draw. The inside of the mesh is the back faces, lit as the outside. Shadows use the same discard and match the holes. The noise is value noise, so its lattice can show at very low scales.