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godot shaders

X-ray silhouette where an object is hidden

Keep a character or item visible through walls: the visible part renders as a lit surface, the part hidden behind other geometry renders as a coloured see-through silhouette with a rim, decided per pixel against the depth buffer.

Recorded render of X-ray silhouette where an object is hidden

What this component contains

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

How it works

Shader type
spatial
Render modes
depth_test_disabled, depth_draw_never, cull_back
Parameters
depth_texture (sampler2D), albedo (vec4 = 0.8, 0.45, 0.2, 1), roughness (float = 0.6), xray_color (vec4 = 0.25, 0.75, 1, 1), xray_fill (float = 0.35), xray_rim_power (float = 2), depth_bias (float = 0.02), pattern_density (float = 120)
Result
A character whose exposed part is shaded normally and whose part behind the wall shows as a glowing blue outline with a striped fill.
Renderers
compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
Placement
res://baltor/godot_shaders/occlusion_silhouette_xray/

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

Without a depth test the object does not sort against itself: concave meshes can show far parts over near ones, so it suits convex characters and props best. The object is drawn in the transparent pass, so it casts no shadow from this material and does not occlude other transparent objects.