https://docs.unity3d.com/2019.3/Documentation/ScriptReference/Rendering.CommandBuffer.DrawProcedural.html
Unity - Scripting API: Rendering.CommandBuffer.DrawProcedural
scripting apiunityrendering
https://docs.unity3d.com/2019.3/Documentation/ScriptReference/Graphics.DrawProcedural.html
Unity - Scripting API: Graphics.DrawProcedural
scripting apiunitygraphics