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Found 2 results

1. solver Seeking Solver Writing Advice

Hello there I am just getting into solver writing. I am self taught and as such I have a fair few holes in my knowledge I aim to build a material point method solver for use in a mud flow effect such as this: https://www.youtube.com/watch?time_continue=42&v=jjeCDYvGJS8 To get to grips with a basic solvers I have built a mass, spring cloth solver: https://vimeo.com/343112353. However there are a few things I've come across that I can't find solutions to. Every timestep I am accumulating a force vector on each point and then I find the acceleration using a=f/m. I find the velocity v=v0+a*@TimeInc. And I find the displacement using r=r0+v*@TimeInc. This works quite nicely however I can't shake the feeling that the equations are completely wrong. Everywhere I look they mention using integration in order to find the displacement but it seems like a linear equation to me. Is this wrong and if so what should I be doing? I would also like to know what the gas integrator node does internally as I find it a bit of a black box. Many thanks George Coleclough
2. Complex multiplication in VEX

How do you do complex multiplication in VEX? Say, complex addition can be represented through vector2 addition. What about multiplication? How do you treat i*i=-1 case? Regards, Vlad
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