emiax / pink-fluid Goto Github PK

Create GUI for storing and loading states and couple it to real functionality

Failes with the following error

Assertion failed: (x >= genType(0)), function sqrt, 
file /Users/kallekrantz/Code/pink-fluid/build/external/glm/external/glm/src/
glm/glm/detail/func_exponential.inl, 
line 149.
fish: Job 1, 'and ./pink-fluid' terminated by signal SIGABRT (Abort)

Find the closest positions to the surface. This is done when initialising the algorithm. The book and separate papers are unclear on how to sweep for the initialising grid. The naive way to find this, would be to use an O(n^2) algorithm.

However, that would leave the rest of the algorithm pointless.

In order to fully utilise the Level set, we need to be able to advect it like any other quantity. The book recommends using a better interpolation scheme for this (Catmull Rom or better).

We do not currently have this possibility. And this improvement would give higher precision results in all parts of the simulation. Issues are however the implementation in 2d vs 1d. As most examples and implementations are in 1d are.

Related wikipedia link: Catmull Rom Spline

There are two possible loop schemes, one is called fast march, the other is fast sweep.

Fast sweep has better time complexity in a naive implementation (O(n) compared to O(n*log(n) for fast march). However, fast march allows for better optimisations later on. Fast march does need a priority queue in order to work.

Loading states

As a Maya 2015 user, I want to find where to set texture repeat for NURBS surfaces

1. • Find the closest locations on the surface #4
   • Set these to their signed distance
   • Set the rest to unknown
2. • Loop through the entire grid using a chosen method (Fast march or Fast sweep), resulting point is i,j,k #3
   • Find the neighbours signed distance to the surface, if Xi,j,k is closer than any neighbour, set Xi,j,k to unknown.
   • Otherwise, set Xi,j,k to the smallest distance of the neighbours and set Xi,j,k to inside the surface or outside the surface.

There are some other issues related to this, for example, moving the level set (Requires better interpolation scheme for the advection #5 ) and solid boundary conditions.

Separate rendering from simulation setup and marching cubes

move bubble tracker to State

As a bubble, I want to be part of the state so that I can be with my friends.

Build level sets in multiple steps (level set builder?)

Render fluid in maya "manually" using existing obj exporter.

Storing states