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Debug drawing utility for Godot

This is an add-on for debug drawing in 3D and for some 2D overlays, which is written in C++ and can be used with GDScript or C#.

Based on my previous addon, which was developed only for C#, and which was inspired by Zylann's GDScript addon

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USDT-TRC20

USDT-TRC20 TEw934PrsffHsAn5M63SoHYRuZo984EF6v

Features

3D:

  • Arrow
  • Billboard opaque square
  • Box
  • Camera Frustum
  • Cylinder
  • Gizmo
  • Grid
  • Line
  • Line Path
  • Line with Arrow
  • Plane
  • Points
  • Position 3D (3 crossing axes)
  • Sphere

2D:

  • [Work in progress]

Overlay:

  • Text (with grouping and coloring)
  • FPS Graph
  • Custom Graphs

Precompiled for:

  • Windows
  • Linux (built on Ubuntu 20.04)
  • macOS (10.14+)
  • Android (5.0+)
  • iOS
  • Web (Firefox not supported)

This addon supports working with several World3D and different Viewports. There is also a no depth test mode and other settings that can be changed for each instance.

screenshot_web

Warning

  • Firefox most likely can't run this demo

Download

To download, use the Godot Asset Library or download the archive by clicking the button at the top of the main repository page: Code -> Download ZIP, then unzip it to your project folder. Or use one of the stable versions from the GitHub Releases page (just download one of the Source Codes in assets).

Installation

  • Close editor
  • Copy addons/debug_draw_3d to your addons folder, create it if the folder doesn't exist
  • Launch editor

Examples

More examples can be found in the examples_dd3d/ folder.

Simple test:

func _process(delta: float) -> void:
    var _time = Time.get_ticks_msec() / 1000.0
    var box_pos = Vector3(0, sin(_time * 4), 0)
    var line_begin = Vector3(-1, sin(_time * 4), 0)
    var line_end = Vector3(1, cos(_time * 4), 0)

    DebugDraw3D.draw_box(box_pos, Vector3(1, 2, 1), Color(0, 1, 0))
    DebugDraw3D.draw_line(line_begin, line_end, Color(1, 1, 0))
    DebugDraw2D.set_text("Time", _time)
    DebugDraw2D.set_text("Frames drawn", Engine.get_frames_drawn())
    DebugDraw2D.set_text("FPS", Engine.get_frames_per_second())
    DebugDraw2D.set_text("delta", delta)

screenshot_1

API

This project has a separate documentation page.

Also, a list of all functions is available in the documentation inside the editor (see DebugDraw3D and DebugDraw2D).

screenshot_4

Known issues and limitations

The text in the keys and values of a text group cannot contain multi-line strings.

The entire text overlay can only be placed in one corner, unlike DataGraphs.

Frustum of Camera3D does not take into account the window size from ProjectSettings.

More screenshots

DebugDrawDemoScene.tscn in editor screenshot_2

DebugDrawDemoScene.tscn in play mode screenshot_3

About

Draw 3D debug graphics and 2D overlays with this add-on.

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  • C++ 78.1%
  • GDScript 8.4%
  • C# 8.0%
  • Python 4.2%
  • Other 1.3%