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Handling of perlin noise surfaces

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This commit is contained in:
Rémi Oudin 2018-02-12 17:40:50 +01:00
parent 588ff14b33
commit 0987290111
2 changed files with 14 additions and 1 deletions
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11
spheroid.cpp
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@ -5,7 +5,7 @@
#include "spheroid.hpp"
Spheroid::Spheroid(Point& _center, size_t _p, size_t _q) :
ImplicitSurface(_center), init_p(_p), p(_p), q(_q), stiffness(0) {
ImplicitSurface(_center), normal_vector(Point(0,0,1)), init_p(_p), p(_p), q(_q), stiffness(0) {
_compute_volume();
}
@ -52,6 +52,15 @@ void Spheroid::check_vertical_plan_collision(double& abscissa) {
}
}
void Spheroid::check_perlin_collision(PerlinNoise perlin) {
double height = perlin.noise(center.x, center.y);
if ((center.z - p) <= height) {
p = fmin(init_p, center.z- height );
normal_vector = perlin.normal_vector(center.x, center.y);
update_radius();
}
}
double Spheroid::operator() (double _x, double _y, double _z) const {
return (pow(_x - center.x, 2) / pow(q, 2)

4
spheroid.hpp
View file

@ -7,6 +7,7 @@
#include <cmath>
#include "Implicit.hpp"
#include "common_structures.hpp"
#include "PerlinNoise.hpp"
const double PI = 3.141592653589793;
@ -19,6 +20,8 @@ class Spheroid : public ImplicitSurface {
void set_stiffness(size_t _stiffness);
void check_horizontal_plan_collision(double& height);
void check_vertical_plan_collision(double& abscissa);
void check_perlin_collision(PerlinNoise perlin);
Point getNormalVector() const { return normal_vector;}
double operator() (double _x, double _y, double _z) const;
private:
/**
@ -27,6 +30,7 @@ class Spheroid : public ImplicitSurface {
* V is the volume. Extremely useful to have a constant volume in the
* ball
**/
Point normal_vector;
double init_p, p, q;
size_t stiffness;
double V;