How to fill bg with triangles dx11

vvvv beta question
1

Hi!
How in dx11 i can fill the screen with triangles like in image?
And a need to interact with any triangle separate.

2

Something like this.

3

\packs\dx11\girlpower\sm4\geometry_shaders\Delaunay_VertexColor

4

thx!
It’s something like i need.
So now i need to make colors not from texture and set different alpha)