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godot shaders

Billboard modes: spherical or upright cylindrical

Vertex billboarding for cards with two modes: spherical (faces the camera fully, for glows and particles) or cylindrical (turns only around the world Y axis, for trees and characters that must stay upright), keeping node position and scale.

Recorded render of Billboard modes: spherical or upright cylindrical

What this component contains

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

How it works

Shader type
spatial
Render modes
cull_disabled
Parameters
card_texture (sampler2D), tint (vec4 = 1, 1, 1, 1), mode (int = 1), alpha_cutoff (float = 0.5), shade_as_upright (bool = yes)
Use it on
Card textures with alpha, and quads whose origin sits at the base for cylindrical mode (the demo uses `center_offset`).
Result
Round green tree cards standing upright and turning to face the camera as it moves.
Renderers
compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
Placement
res://baltor/godot_shaders/billboard_axis_modes/

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

Cards rotate in the vertex stage, so frustum culling and shadows use the unrotated mesh bounds; give nodes a margin. Shadow maps render the card facing the light camera, not the main camera. Cylindrical mode degenerates when the camera is exactly above the card.