Model Diamond Tufting patterns in Blender | Blender Nepali Tutorial
step 1: subdivide mesh so that each quad become square
Step-2: Poke face
Step-3: Tri-Quad
Step-4: Poke face
Step-5 :Poke face
for more info watch this tutorial from blender secrets:
• Daily Blender Tip 279 - Model Diamond Tuft...
tutor: Sudeep Singh