Unigine::PhysicalNoise Class

// AppWorldLogic.cpp
/* .. */
#include <UnigineGame.h>
#include "AppWorldLogic.h"
#include <UniginePhysicals.h>
#include <UniginePrimitives.h>
#include <UnigineVisualizer.h>

using namespace Unigine;
using namespace Math;

// declaring a PhysicalNoise node
PhysicalNoisePtr physical_noise;

/// function, creating a named box having a specified size, color and transformation with a body and a shape
ObjectMeshDynamicPtr createBodyBox(const char* name, vec3 size, float mass, vec4 color, Mat4 transform)
{
	// creating geometry and setting up its parameters (name, color and transformation)
	ObjectMeshDynamicPtr box = Primitives::createBox(size);
	box->setWorldTransform(transform);
	box->setMaterialParameterFloat4("albedo_color", color, 0);
	box->setName(name);

	// adding physics, i.e. a rigid body and a box shape with the specified mass
	BodyRigidPtr body = BodyRigid::create(box);
	body->addShape(ShapeBox::create(size), translate(vec3(0.0f)));
	box->getBody()->getShape(0)->setMass(mass);

	// setting the physical mask for the body
	body->setPhysicalMask(1);

	return box;
}

/* .. */

int AppWorldLogic::init()
{
	// setting up physics parameters (gravity, linear and angular velocity)
	Physics::setGravity(vec3(0.0f, 0.0f, -1.0f));
	Physics::setFrozenLinearVelocity(0.1f);
	Physics::setFrozenAngularVelocity(0.1f);

	// setting up player's parameters
	Game::getPlayer()->setWorldPosition(Vec3(0.0f, 90.0f, 70.0f));
	Game::getPlayer()->setDirection(vec3(0.0f, -1.0f, -0.7f), vec3(0.0f, 0.0f, -1.0f));

	// creating a physical noise node with a size of 60x60x60
	physical_noise = PhysicalNoise::create(vec3(60.0f));

	// setting the force multiplier equal to 50
	physical_noise->setForce(50.0f);

	// setting the threshold distance
	physical_noise->setThreshold(vec3(0.0f));

	// setting the physical mask
	physical_noise->setPhysicalMask(1);

	//setting up noise texture generation parameters (scale, frequency, size)
	physical_noise->setNoiseScale(0.2f);
	physical_noise->setFrequency(4);
	physical_noise->setImageSize(16);

	// setting the sampling step equal to 20
	physical_noise->setStep(vec3(20.0f));

	// enabling the Visualizer to show our physical noise
	Visualizer::setEnabled(1);

	//generating 50 boxes with rigid bodies and shapes assigned
	for (int i = 0; i < 50; i++) {
		Vec3 position = Vec3(Game::getRandomDouble(-50.0f, 50.0f), Game::getRandomDouble(-50.0f, 50.0f), 40.0f);
		vec4 color = vec4(Game::getRandomFloat(0.0f, 1.0f), Game::getRandomFloat(0.0f, 1.0f), Game::getRandomFloat(0.0f, 1.0f), Game::getRandomFloat(0.0f, 1.0f));
		createBodyBox("box", vec3_one, 1.0f, color, translate(position));
	}

	return 1;
}

int AppWorldLogic::update()
{
	// rendering visualizer for the physical noise node
	physical_noise->renderVisualizer();

	return 1;
}