ESTree

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OpenGL-based game engine made for real-time generating tree models.

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# ESTree
Simple game engine capable of rendering scene, performing physics simulations and generating tree models using Lindenmayer sytem formal grammar.
Created as a part of masters dissertation.
Executable available in __release__ tab.

YouTube clip demonstrating project capabilities: 
[![main_scene_clip](https://img.youtube.com/vi/CheCvFOeFZI/0.jpg)](https://youtu.be/CheCvFOeFZI)

ESTree is using few libraries:
 * __BOOST__: general perfomance purposes, multithreading
 * __GLFW, GLM, GLAD, OpenGL__: scene rendering
 * __BulletPhysics__: physics simulation (collisions, mouse picking, collapsing towers made of blocks) 
 * __RapidJSON__: parsing configuration files
 * __FreeType__: text rendering
 * __STB__: texture loading
 * __Freetype__: fonts

Single tree scene clip: 
[![single_tree_scene_clip](https://img.youtube.com/vi/QXZW_28LS78/0.jpg)](https://youtu.be/QXZW_28LS78)

Sample screenshots presenting current engine abilities regarding tree generation:

* Simple bush model: 
 ![Sample screenshot](https://raw.githubusercontent.com/Blamad/ESTree/master/images/withHdr.PNG) 
 * Ternary tree models generated from rules described in "The Algorithmic Beauty of Plants": 
 ![Sample screenshot](https://raw.githubusercontent.com/Blamad/ESTree/master/images/ternaryTreeA.PNG)
 ![Sample screenshot](https://raw.githubusercontent.com/Blamad/ESTree/master/images/ternaryTreeE.PNG)
 
 
 # Project setup
 To setup VS 14 project locally recursively clone repo and run __setup.bat__. Script will create __build__ directory which will contain project files. 
 Run __build/ESTree.sln__ and remember to mark __ESTree__ as startup project. 
 Project requires built x64 Boost linked via env variable (check __CMakeLists.txt__) and __freetype.dll__ which can be placed in either __Windows/System32__ or project build directory.
 
 # Usage
 Scene navigation: RMB + WSAD (Space and left alt to move vertically) 
 Object selection/pick up: LMB 
 Console toggle: ~ 
 
 Application has number of commands available in built-in user console such as:
 * adding and removing objects from scene,
 * creating movable light sources,
 * generating Lindenmayer trees from configuration files,
 * exporting models to .obj files,
 * help listing all actual commands.
 
 For further initialisation launch options you can execute app with --help.

ESTree

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