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better mandelbrot set

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This commit is contained in:
Benjamin Kyd
2019-01-31 19:20:53 +00:00
parent 30f09d95f6
commit 9d3472110c
9 changed files with 2278 additions and 18 deletions
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56
C++/Julia explorer/.vscode/settings.json vendored Normal file
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@@ -0,0 +1,56 @@
{
"files.associations": {
"atomic": "cpp",
"chrono": "cpp",
"cmath": "cpp",
"condition_variable": "cpp",
"cstddef": "cpp",
"cstdint": "cpp",
"cstdio": "cpp",
"cstdlib": "cpp",
"cstring": "cpp",
"cwchar": "cpp",
"exception": "cpp",
"fstream": "cpp",
"functional": "cpp",
"initializer_list": "cpp",
"ios": "cpp",
"iosfwd": "cpp",
"iostream": "cpp",
"istream": "cpp",
"limits": "cpp",
"list": "cpp",
"map": "cpp",
"memory": "cpp",
"mutex": "cpp",
"new": "cpp",
"numeric": "cpp",
"ostream": "cpp",
"ratio": "cpp",
"stdexcept": "cpp",
"streambuf": "cpp",
"string": "cpp",
"system_error": "cpp",
"xthread": "cpp",
"thread": "cpp",
"tuple": "cpp",
"type_traits": "cpp",
"typeinfo": "cpp",
"unordered_map": "cpp",
"utility": "cpp",
"vector": "cpp",
"xfacet": "cpp",
"xhash": "cpp",
"xiosbase": "cpp",
"xlocale": "cpp",
"xlocinfo": "cpp",
"xlocnum": "cpp",
"xmemory": "cpp",
"xmemory0": "cpp",
"xstddef": "cpp",
"xstring": "cpp",
"xtr1common": "cpp",
"xtree": "cpp",
"xutility": "cpp"
}
}

74
C++/Julia explorer/main.cpp Normal file
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#include <iostream>
#include <numeric>
#include <cmath>
#include <map>
#define OLC_PGE_APPLICATION
#include "olcPixelGameEngine.h"
class Mandelbrot : public olc::PixelGameEngine {
public:
Mandelbrot() {
sAppName = "Mandelbrot set";
}
bool OnUserCreate() override {
return true;
}
bool OnUserUpdate(long double fElapsedTime) override {
#pragma omp parallel for schedule(dynamic)
for (int pX = 0; pX < 1000; pX++) {
long double mX = ((long double)pX - 1000.0f / 2.0f) / 100 * m_scale - 1 + m_x;
#pragma omp parallel for schedule(dynamic)
for (int pY = 0; pY < 600; pY++) {
long double mY = (600.0f / 2.0f - (long double)pY) / 100 * m_scale - 1 + m_y;
long double Zre = 0.0f; long double Zim = 0.0f;
int iteration = 0;
while ((Zre * Zre) + (Zim * Zim) <= 2 * 2 && iteration < m_maxIterations) {
long double tX = (Zre * Zre) - (Zim * Zim) + mX;
Zim = (2 * Zre * Zim) + mY;
Zre = tX;
iteration++;
}
long double ratio = (long double)iteration - std::log2(std::log2(Zre*Zre + Zim*Zim)) / m_maxIterations;
ratio *= 255.0f;
olc::Pixel colour = olc::Pixel(ratio, ratio, ratio);
DrawRect(pX, pY, 1, 1, colour);
}
}
if (GetKey(olc::Key::W).bHeld)
m_y *= 1.01f;
if (GetKey(olc::Key::S).bHeld)
m_y /= 1.01f;
if (GetKey(olc::Key::D).bHeld)
m_x *= 1.01f;
if (GetKey(olc::Key::A).bHeld)
m_x /= 1.01f;
if (GetKey(olc::Key::DOWN).bHeld)
m_scale *= 1.01f;
if (GetKey(olc::Key::UP).bHeld)
m_scale /= 1.01f;
std::cout << "Render time: " << fElapsedTime << std::endl;
return true;
}
private:
long double m_x = 1.0f;
long double m_y = 1.0f;
long double m_scale = 0.7f;
int m_maxIterations = 255;
std::map<int, olc::Pixel> m_palete;
};
int main(int argc, char** argv) {
Mandelbrot app;
app.Construct(1000, 600, 1, 1);
app.Start();
return 0;
}

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C++/Julia explorer/olcPixelGameEngine.h Normal file
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56
C++/Mandelbrot explorer/.vscode/settings.json vendored Normal file
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@@ -0,0 +1,56 @@
{
"files.associations": {
"atomic": "cpp",
"chrono": "cpp",
"cmath": "cpp",
"condition_variable": "cpp",
"cstddef": "cpp",
"cstdint": "cpp",
"cstdio": "cpp",
"cstdlib": "cpp",
"cstring": "cpp",
"cwchar": "cpp",
"exception": "cpp",
"fstream": "cpp",
"functional": "cpp",
"initializer_list": "cpp",
"ios": "cpp",
"iosfwd": "cpp",
"iostream": "cpp",
"istream": "cpp",
"limits": "cpp",
"list": "cpp",
"map": "cpp",
"memory": "cpp",
"mutex": "cpp",
"new": "cpp",
"numeric": "cpp",
"ostream": "cpp",
"ratio": "cpp",
"stdexcept": "cpp",
"streambuf": "cpp",
"string": "cpp",
"system_error": "cpp",
"xthread": "cpp",
"thread": "cpp",
"tuple": "cpp",
"type_traits": "cpp",
"typeinfo": "cpp",
"unordered_map": "cpp",
"utility": "cpp",
"vector": "cpp",
"xfacet": "cpp",
"xhash": "cpp",
"xiosbase": "cpp",
"xlocale": "cpp",
"xlocinfo": "cpp",
"xlocnum": "cpp",
"xmemory": "cpp",
"xmemory0": "cpp",
"xstddef": "cpp",
"xstring": "cpp",
"xtr1common": "cpp",
"xtree": "cpp",
"xutility": "cpp"
}
}

31
C++/Mandelbrot explorer/main.cpp
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@@ -1,4 +1,6 @@
#include <iostream>
#include <numeric>
#include <cmath>
#include <map>
#define OLC_PGE_APPLICATION
@@ -15,26 +17,29 @@ public:
}
bool OnUserUpdate(float fElapsedTime) override {
#pragma omp parallel for schedule(dynamic)
for (int pX = 0; pX < 1000; pX++) {
float mX = ((float)pX - 1000.0f / 2.0f) / 100 * m_scale - 1 + m_x;
long double mX = ((long double)pX - 1000.0f / 2.0f) / 100 * m_scale - 1 + m_x;
#pragma omp parallel for schedule(dynamic)
for (int pY = 0; pY < 600; pY++) {
float mY = (600.0f / 2.0f - (float)pY) / 100 * m_scale - 1 + m_y;
long double mY = (600.0f / 2.0f - (long double)pY) / 100 * m_scale - 1 + m_y;
float x = 0.0f; float y = 0.0f;
long double Zre = 0.0f; long double Zim = 0.0f;
int iteration = 0;
while ((x * x) + (y * y) <= 2 * 2 && iteration < m_maxIterations) {
float tX = (x * x) - (y * y) + mX;
y = (2 * x * y) + mY;
x = tX;
while ((Zre * Zre) + (Zim * Zim) <= 2 * 2 && iteration < m_maxIterations) {
long double tX = (Zre * Zre) - (Zim * Zim) + mX;
Zim = (2 * Zre * Zim) + mY;
Zre = tX;
iteration++;
}
olc::Pixel colour = olc::Pixel(iteration * 2, iteration * 2, iteration * 2);
long double ratio1 = (long double)iteration - std::log2(std::log2(Zre*Zre + Zim*Zim)) / m_maxIterations;
long double ratio2 = (long double)iteration - std::log(std::log(Zre*Zre * Zim*Zim)) / m_maxIterations;
long double ratio3 = (long double)iteration - std::log10(std::log10(Zre*Zre - Zim*Zim)) / m_maxIterations;
olc::Pixel colour = olc::Pixel(ratio1 + 255.0f, ratio2 + 255.0f, ratio3 + 255.0f);
DrawRect(pX, pY, 1, 1, colour);
}
}
// m_scale -= 0.01f;
if (GetKey(olc::Key::W).bHeld)
m_y *= 1.01f;
@@ -53,10 +58,10 @@ public:
return true;
}
private:
float m_x = 1.0f;
float m_y = 1.0f;
float m_scale = 0.7f;
int m_maxIterations = 100;
long double m_x = 1.0f;
long double m_y = 1.0f;
long double m_scale = 0.7f;
int m_maxIterations = 15;
std::map<int, olc::Pixel> m_palete;
};

10
C++/Mandelbrot explorer/olcPixelGameEngine.h
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@@ -279,7 +279,7 @@ namespace olc // All OneLoneCoder stuff will now exist in the "olc" namespace
{
public:
ResourcePack();
~ResourcePack();
// ~ResourcePack();
struct sEntry : public std::streambuf {
uint32_t nID, nFileOffset, nFileSize; uint8_t* data; void _config() { this->setg((char*)data, (char*)data, (char*)(data + nFileSize)); }
};
@@ -839,10 +839,10 @@ namespace olc
}
ResourcePack::~ResourcePack()
{
ClearPack();
}
// ResourcePack::~ResourcePack()
// {
// ClearPack();
// }
olc::rcode ResourcePack::AddToPack(std::string sFile)
{

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