Hi, i would like to ask some questions about dop workflow in Houdini. First thing, fields are they MAC Grids? I think they are voxel grids but i don't really know if they are MAC Grids or what which is really confusing. Secondly, the boundaries in the flip solver or any solver, how we enfocre boundary conditions like no slip boundaries? Thirdly, the GAS Advect which has a lot of versions and it has two parameters, advection type and advection method which i am not sure about the difference between them! Is it based on the semi lagrangian scheme or what?
Lastly, the GAS Diffuse,
What's the way it uses to solve the diffusion equation? Jacoobi or what? I want to see microsolvers code in C++, how can i see it? I can't really find more about what is inside them. If you have an answer of any of these questions, please help me!
Thanks and cheers!