about extruding vertex I saw this blender timelapse video on youtube and during the course,he was translating a vertex in z axis but vertexes around it randomly gravitates towards that particular vertex as well,I'm new into the blender,I've only saw similar feature in cinema4d but I couldn't find any clue on my own,if somebody knows how to achieve it please let me know,thanks]1
I think he's not extruding, just moving up, no? He must have activated the Proportional Editing option, and perhaps Random type?