utilforever / cubbyflow-v1 Goto Github PK

Voxel-based fluid simulation engine for computer games

Home Page: http://utilforever.github.io/CubbyFlow-v1

License: MIT License

CSS 0.28% JavaScript 1.58% HTML 0.07% CMake 0.49% C 1.20% C++ 95.83% Python 0.54%

physics-engine fluid-simulation-engine computer-graphics computational-physics c-plus-plus computational-fluid-dynamics voxel-based

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aghagon2000 chalkpe artblnd dubledpark motsf red-portal penguin1214 astrorog mousedoc nasrollah lfpretty

cubbyflow-v1's Issues

Check multiplication is correct in Quaternion class

	// TODO: Check the formula!
	template <typename T>
	Quaternion<T> Quaternion<T>::Mul(const Quaternion& other) const
	{
		Vector3<T> v1 = Vector3<T>(x, y, z);
		Vector3<T> v2 = Vector3<T>(other.x, other.y, other.z);
		Vector3<T> res = v2 * w + v1 * other.w + v1.Cross(v2);
		return Quaternion(w * other.w - v1.Dot(v2), res.x, res.y, res.z);
	}

	// TODO: Check the formula!
	template <typename T>
	Quaternion<T> Quaternion<T>::RMul(const Quaternion& other) const
	{
		Vector3<T> v1 = Vector3<T>(x, y, z);
		Vector3<T> v2 = Vector3<T>(other.x, other.y, other.z);
		Vector3<T> res = v2 * w + v1 * other.w + v2.Cross(v1);
		return Quaternion(w * other.w - v1.Dot(v2), res.x, res.y, res.z);
	}

Fix parallel implementation file

Parallel methods are function template. Therefore, implementation file must be header file, not source file.

Implement array samplers and utils

For Array1, 2, and 3,

NearestArraySampler class
LinearArraySampler class
CubicArraySampler class

and array utils function.

Implement animation manual tests

OnUpdateSine
OnUpdateSineWithDecay

Process unused variable for constant fields

In ConstantScalarField2/3 and ConstantVectorField2/3,
method Sample's argument x is unused variable.

Need to process [[maybe_unused]] attributes (C++17).

Implement incompressible SPH with larger time-step

PciSphSystemSolver2 class
PciSphSystemSolver3 class

Implement smoothed particles

SphStdKernel2 struct
SphStdKernel3 struct
SphSystemData2 class
SphSystemData3 class
SphSpikyKernel2 struct
SphSpikyKernel3 struct
SphSystemSolver2 class
SphSystemSolver3 class

Prepare list for Ver 0.2

Particle-Based Simulation
- Data Structures
  - Particle System Data
  - Particle System Example
  - Neighbor Search
    - Searching Nearby Particles
    - Caching Neighbors
- Smoothed Particles
  - Basics
    - Kernel
    - Data Model
    - Interpolation
    - Density
    - Differential Operators
  - Dynamics
    - Solver Overview
    - Pressure Gradient Force
    - Viscosity
  - Result and Limitations
- Incompressible SPH with Larger Time-Step
  - Predict and Correct
  - Implementation
  - Results
- Collision Handling
  - Defining Colliders

Implement 3D SPH

SphStdKernel3 struct
SphSystemData3 class
SphSpikyKernel3 struct
SphSystemSolver3 class

Implement rigidbody collider

RigidBodyCollider2 class
RigidBodyCollider3 class

Implement particle system solver manual tests

ParticleSystemSolver2
- Update
ParticleSystemSolver3
- PerfectBounce
- HalfBounce
- HalfBounceWithFriction
- NoBounce
- Update

Implement point generators

PointGenerator2 class
PointGenerator3 class
TrianglePointGenerator class

Pull latest bug fixes from Jet

There are some important bug fixes that were merged to Jet framework recently (Transform bug, for instance). Please take a look at the latest PRs from Jet and pull the fixes if they also exist in this project.