Particle System: Draw a tree from scratch, and the particle starts from scratch.

Particle System: Draw a tree from scratch, and the particle starts from scratch.

IDE: Visual Studio 2017
Language: VB. NET/C #
Graphics API: Win2D
Game Engine: ExperDot. EDGameEngine

This article will introduce you to a simple method for simulating plants with a particle System (Partical System.

Section 1 move

Particles move according to certain rules and keep moving tracks.

　　Targeted Movement

The particle has an initial speed

　　Particle gradient

The rendering radius of the particle gradually decreases, and the rendering color gradually decreases.

　　Direction offset

The particle is always shifted to a certain direction.

　　Random disturbance

Random force of particles on any side

Figure 1-1 targeted Movement

Figure 1-2 gradient

Figure 1-3 redirection

Figure 1-4 disturbance

Section 2 split

Existing particles are randomly split into several new particles.

　　Direction offset

　　When split, the new particle's velocity direction is deflected, and the moving track will generate forks.

　　Particle deceleration

When split, the moving speed of new particles decreases, and the moving track becomes shorter and shorter.

Figure 2-1 forks

Figure 2-2 deceleration

Section 3 freedom

Now, you can adjust the parameters at will!

 

Figure 3-1 straight line

Figure 3-2 line chart

Figure 3-3 Curve

Appendix

Open source code. The following blog is another implementation method of the natural tree.

Open source link: EDGameEngine. Vitamins ALS. participant. Tree
Related blog: programming simulation (I): how to draw a static tree
Related blog: programming simulation nature (3): better static Tree Algorithm
Related blog: programming simulation nature (6): how to draw a dynamic tree