Tuning knobs of one fluid simulation. 更多...

#include <FluidMath.h>

Public 属性
float	particleRadius = 0.05f
	Resting particle radius in world units.

float	supportRadius = 0.20f
	SPH support radius h (kernel cutoff), typically 4x particleRadius.

float	restDensity = 1.0f
	Rest density; normalized to 1.

glm::vec3	gravity {0.f, -9.8f, 0.f}
	Gravity vector in world units / s^2.

float	viscosity = 0.02f
	XSPH viscosity strength (0 = inviscid).

float	yieldStress = 0.0f
	Bingham yield stress: below this shear rate particles "freeze".

float	cohesion = 0.0f
	Fluid-fluid cohesion strength (droplet formation).

float	adhesion = 0.0f
	Fluid-surface adhesion strength (contact angle / sticking).

float	damping = 0.0f
	Linear air damping applied each substep.

float	maxVelocity = 20.f
	Velocity clamp after integration.

int	iterations = 1
	Solver substeps per call to step(dt).

int	pbfIterations = 2
	PBF density-constraint relaxation passes per substep.

详细描述

Tuning knobs of one fluid simulation.

Units are normalized (mass = 1 per particle, rest density 1). The support radius defaults to 4x the particle radius, the common PBF/SPH choice, so a particle sees roughly a 2-cell neighborhood in the uniform grid.

在文件 FluidMath.h 第 26 行定义.

类成员变量说明

◆ adhesion

float eve::fluids::FluidParams::adhesion = 0.0f

Fluid-surface adhesion strength (contact angle / sticking).

在文件 FluidMath.h 第 42 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setAdhesion().

◆ cohesion

float eve::fluids::FluidParams::cohesion = 0.0f

Fluid-fluid cohesion strength (droplet formation).

在文件 FluidMath.h 第 40 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setCohesion().

◆ damping

float eve::fluids::FluidParams::damping = 0.0f

Linear air damping applied each substep.

在文件 FluidMath.h 第 44 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setDamping().

◆ gravity

glm::vec3 eve::fluids::FluidParams::gravity {0.f, -9.8f, 0.f}

Gravity vector in world units / s^2.

在文件 FluidMath.h 第 34 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setGravity().

◆ iterations

int eve::fluids::FluidParams::iterations = 1

Solver substeps per call to step(dt).

在文件 FluidMath.h 第 48 行定义.

被这些函数引用 eve::fluids::FluidSimulator::step() , 以及 eve::fluids::FluidSimulation::step().

◆ maxVelocity

float eve::fluids::FluidParams::maxVelocity = 20.f

Velocity clamp after integration.

在文件 FluidMath.h 第 46 行定义.

◆ particleRadius

float eve::fluids::FluidParams::particleRadius = 0.05f

Resting particle radius in world units.

在文件 FluidMath.h 第 28 行定义.

被这些函数引用 eve::fluids_editing::FluidSimulationRuntimeApplier::apply(), eve::fluids::FluidSurfaceRenderer::render(), eve::fluids::FluidSimulator::setParticleRadius() , 以及 eve::fluids::FluidSimulation::spawnDrop().

◆ pbfIterations

int eve::fluids::FluidParams::pbfIterations = 2

PBF density-constraint relaxation passes per substep.

在文件 FluidMath.h 第 50 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setPbfIterations() , 以及 eve::fluids::FluidSimulation::step().

◆ restDensity

float eve::fluids::FluidParams::restDensity = 1.0f

Rest density; normalized to 1.

在文件 FluidMath.h 第 32 行定义.

◆ supportRadius

float eve::fluids::FluidParams::supportRadius = 0.20f

SPH support radius h (kernel cutoff), typically 4x particleRadius.

在文件 FluidMath.h 第 30 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setSdf(), eve::fluids::FluidSimulation::setSdf() , 以及 eve::fluids::FluidSimulator::setSupportRadius().

◆ viscosity

float eve::fluids::FluidParams::viscosity = 0.02f

XSPH viscosity strength (0 = inviscid).

在文件 FluidMath.h 第 36 行定义.

被这些函数引用 eve::fluids::FluidSimulator::setViscosity().

◆ yieldStress

float eve::fluids::FluidParams::yieldStress = 0.0f

Bingham yield stress: below this shear rate particles "freeze".

在文件 FluidMath.h 第 38 行定义.

该结构体的文档由以下文件生成:

src/modules/fluids/FluidMath.h

Public 属性