Natural Phenomena

Update Particles in Parallel

Vertex

Array

Data

0: xyz

1: xyz

2: xyz

...

Put Vertex

Array into

Framebuffer

with glDrawPixels

System

Memory

Vertex

Array

Data

0: xyz

1: xyz

2: xyz

...

System

Memory

Update with

Difference

Image and

glBlendFunc

Get Vertex Array

back to System

Memory with

glReadPixels

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