How to create a triangular pyramid?
Is TetrahedronBufferGeometry what you are looking for?
Yes, exactly this one, thanks 
I have used this example, but I’m getting one error, i.e. Property ‘parameters’ does not exist on type ‘TetrahedronGeometry’.ts(2339)
line:13
No idea why this happens. Please demonstrate the issue with a live example.
The object is not coming as proper pyramid as in example.
I have used these values for first two parameters :
const vertices = [
1, 1, 1, - 1, - 1, 1, - 1, 1, - 1, 1, - 1, - 1
];
const indices = [
2, 1, 0,
1, 3, 0,
0, 3, 2,
2, 3, 1
];
Should I make some changes?
@Varun_Ahuja
Take a look at this option of building of tetrahedron: Tetrahedron (non-indexed buffer geometry)
I had a look at this and that’s great
But still I’m unable to understand, why I’m not getting proper triangular pyramid
I have followed this link:
and radius=10 and detail=0
If you add two more triangles in this example BufferGeometry , you have a tetrahedron.
You can adjust the values as you like.
Note .addAttribute is now .setAttribute
From the collection
Alright! Thanks