https://github.com/jango73/quick3d

Qt based 3D engine with geo-referenced entities
https://github.com/jango73/quick3d

3d engine georeferenced global lod opengl qt realtime scenery terrain

Last synced: 3 months ago
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Qt based 3D engine with geo-referenced entities

• Host: GitHub
• URL: https://github.com/jango73/quick3d
• Owner: Jango73
• License: gpl-3.0
• Created: 2016-06-01T17:14:48.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2019-06-25T11:22:26.000Z (over 5 years ago)
• Last Synced: 2023-10-20T20:38:05.765Z (over 1 year ago)
• Topics: 3d, engine, georeferenced, global, lod, opengl, qt, realtime, scenery, terrain
• Language: C++
• Size: 93.7 MB
• Stars: 14
• Watchers: 5
• Forks: 3
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Quick3D

Qt based 3D engine with geo-referenced entities

This used to be a very simple 3D engine that could show a 3D terrain and objects.

But it has been pushed much further and is now a general purpose engine.

## Building

Open .pro file in Qt Creator and build **without** shadow build option.

## Features

* Global terrain with automatic level of detail. Can be generated from real earth elevation data or procedurally and can be populated with vegetation.

* Geo-referenced objects, with parent-child relationship

* Q3D file format, with a python script to export from Blender

* Scenes are setup in a XML file or at runtime

* Basic animation classes

## Things to code or to fix

### Optimize

* Frame rate drops too fast when scene goes up in complexity. Probably too much overhead on object/material setup.

### Terrain

* Tile seams : for now, seams between terrain tiles are visible. Should create small patches on edges to match tiles.

* Z-fighting : should use an adaptive z-buffer depth to avoid this.

* Loading : sometimes tiles simply don't show up.

* Vegetation rendering : vegetation objects (and all alpha containing objects) should be rendered last to avoid alpha problems.

* Vegetation spawning : still some bug in this algorithm.

### Animation

* Skinning : nothing done yet.

### Camera

* Frustum : sometimes objects disappear because they are not considered inside the viewing frustum (although we know they are).

### Materials

* PBR rendering : allow scripting of PBR methods for realistic shading.

* Shaders: there are some artefacts due to bad looping when using perlin noise.