sphere – ページ 40 – プログラミング de 落描き

2020年7月21日2020年7月21日

Flaking sphere. Draw by openFrameworks

[ Video ]

[ About ]
剥がれ落ちる球体。

flaking sphere.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	vector<ofMeshFace> triangle_list;
	ofMesh mesh;

	vector<vector<glm::vec3>> fragment_list;
	vector<float> fragment_life_list;
	vector<glm::vec3> fragment_velocity_list;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<ofMeshFace> triangle_list;

ofMesh mesh;

vector<vector<glm::vec3>> fragment_list;

vector<float> fragment_life_list;

vector<glm::vec3> fragment_velocity_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(125, 2);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();
}

//--------------------------------------------------------------
void ofApp::update() {

	this->mesh.clear();
	
	ofSeedRandom(39);
	auto base_location_noise = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	auto base_location = glm::vec3(
		ofMap(ofNoise(base_location_noise.x, ofGetFrameNum() * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.y, ofGetFrameNum() * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.z, ofGetFrameNum() * 0.005), 0, 1, -50, 50)
	);
	auto prev_base_location = glm::vec3(
		ofMap(ofNoise(base_location_noise.x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -50, 50)
	);
	auto velocity = base_location - prev_base_location;
	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

	for (auto& triangle : this->triangle_list) {

		int index = this->mesh.getNumVertices();
		auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto param = (int)(ofRandom(1000) + ofGetFrameNum()) % 200;

		vector<glm::vec3> vertices;
		for (int j = 0; j < 3; j++) {

			glm::vec3 location = glm::vec3(triangle.getVertex(j).x, triangle.getVertex(j).y, triangle.getVertex(j).z);

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 0, 1));
			location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x;

			vertices.push_back(location + base_location);
		}
		
		if(param == 0){

			this->fragment_list.push_back(vertices);
			this->fragment_life_list.push_back(255);
			this->fragment_velocity_list.push_back(velocity * 1.5 + avg * 0.005);
		}
		else if (param > 50) {

			this->mesh.addVertices(vertices);
			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
		}
	}

	for (int i = this->fragment_list.size() - 1; i >= 0; i--) {

		for (auto& vertex : this->fragment_list[i]) {

			vertex += this->fragment_velocity_list[i];
		}
		this->fragment_life_list[i] -= 5;

		if (this->fragment_life_list[i] < 0) {

			this->fragment_list.erase(this->fragment_list.begin() + i);
			this->fragment_life_list.erase(this->fragment_life_list.begin() + i);
			this->fragment_velocity_list.erase(this->fragment_velocity_list.begin() + i);
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();

	ofSetColor(39);
	this->mesh.drawFaces();

	ofSetColor(239);
	this->mesh.drawWireframe();

	for (int i = 0; i < this->fragment_list.size(); i++) {

		ofSetColor(39, this->fragment_life_list[i]);
		ofFill();
		ofBeginShape();
		ofVertices(this->fragment_list[i]);
		ofEndShape(true);

		ofSetColor(239, this->fragment_life_list[i]);
		ofNoFill();
		ofBeginShape();
		ofVertices(this->fragment_list[i]);
		ofEndShape(true);
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(125, 2);

this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

}

//--------------------------------------------------------------

void ofApp::update() {

this->mesh.clear();

ofSeedRandom(39);

auto base_location_noise = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto base_location = glm::vec3(

ofMap(ofNoise(base_location_noise.x, ofGetFrameNum() * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.y, ofGetFrameNum() * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.z, ofGetFrameNum() * 0.005), 0, 1, -50, 50)

);

auto prev_base_location = glm::vec3(

ofMap(ofNoise(base_location_noise.x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -50, 50)

);

auto velocity = base_location - prev_base_location;

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

for (auto& triangle : this->triangle_list) {

int index = this->mesh.getNumVertices();

auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto param = (int)(ofRandom(1000) + ofGetFrameNum()) % 200;

vector<glm::vec3> vertices;

for (int j = 0; j < 3; j++) {

glm::vec3 location = glm::vec3(triangle.getVertex(j).x, triangle.getVertex(j).y, triangle.getVertex(j).z);

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 0, 1));

location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x;

vertices.push_back(location + base_location);

}

if(param == 0){

this->fragment_list.push_back(vertices);

this->fragment_life_list.push_back(255);

this->fragment_velocity_list.push_back(velocity * 1.5 + avg * 0.005);

}

else if (param > 50) {

this->mesh.addVertices(vertices);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

}

for (int i = this->fragment_list.size() - 1; i >= 0; i--) {

for (auto& vertex : this->fragment_list[i]) {

vertex += this->fragment_velocity_list[i];

}

this->fragment_life_list[i] -= 5;

if (this->fragment_life_list[i] < 0) {

this->fragment_list.erase(this->fragment_list.begin() + i);

this->fragment_life_list.erase(this->fragment_life_list.begin() + i);

this->fragment_velocity_list.erase(this->fragment_velocity_list.begin() + i);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->mesh.drawFaces();

ofSetColor(239);

this->mesh.drawWireframe();

for (int i = 0; i < this->fragment_list.size(); i++) {

ofSetColor(39, this->fragment_life_list[i]);

ofFill();

ofBeginShape();

ofVertices(this->fragment_list[i]);

ofEndShape(true);

ofSetColor(239, this->fragment_life_list[i]);

ofNoFill();

ofBeginShape();

ofVertices(this->fragment_list[i]);

ofEndShape(true);

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200721

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2020年7月9日

Group of sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体の塊。

Group of sphere.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void draw_sphere(glm::vec3 location, float radius);

	ofEasyCam cam;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void draw_sphere(glm::vec3 location, float radius);

ofEasyCam cam;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 2);
	ofRotateX(ofGetFrameNum() * 1.54);

	this->draw_sphere(glm::vec3(), 300);

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_sphere(glm::vec3 location, float radius) {

	vector<glm::vec3> location_list = {
		location + glm::vec3(-radius * 0.5, -radius * 0.5, radius * 0.5),
		location + glm::vec3(-radius * 0.5, radius * 0.5, radius * 0.5),
		location + glm::vec3(radius * 0.5, radius * 0.5, radius * 0.5),
		location + glm::vec3(radius * 0.5, -radius * 0.5, radius * 0.5),
		location + glm::vec3(-radius * 0.5, -radius * 0.5, -radius * 0.5),
		location + glm::vec3(-radius * 0.5, radius * 0.5, -radius * 0.5),
		location + glm::vec3(radius * 0.5, radius * 0.5, -radius * 0.5),
		location + glm::vec3(radius * 0.5, -radius * 0.5, -radius * 0.5)
	};

	if (radius < 50) {

		for (auto& l : location_list) {

			auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

			if (noise_value < 0.85) {

				ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));
				ofDrawSphere(l, radius * 0.5);
			}
		}
	}
	else {

		for (auto& l : location_list) {

			auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

			if (radius == 300 || noise_value < 0.5) {

				this->draw_sphere(l, radius * 0.5);
			}
			else if (noise_value < 0.70) {

				ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));
				ofDrawSphere(l, radius * 0.5);
			}
		}
	}
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 2);

ofRotateX(ofGetFrameNum() * 1.54);

this->draw_sphere(glm::vec3(), 300);

this->cam.end();

}

//--------------------------------------------------------------

void ofApp::draw_sphere(glm::vec3 location, float radius) {

vector<glm::vec3> location_list = {

location + glm::vec3(-radius * 0.5, -radius * 0.5, radius * 0.5),

location + glm::vec3(-radius * 0.5, radius * 0.5, radius * 0.5),

location + glm::vec3(radius * 0.5, radius * 0.5, radius * 0.5),

location + glm::vec3(radius * 0.5, -radius * 0.5, radius * 0.5),

location + glm::vec3(-radius * 0.5, -radius * 0.5, -radius * 0.5),

location + glm::vec3(-radius * 0.5, radius * 0.5, -radius * 0.5),

location + glm::vec3(radius * 0.5, radius * 0.5, -radius * 0.5),

location + glm::vec3(radius * 0.5, -radius * 0.5, -radius * 0.5)

};

if (radius < 50) {

for (auto& l : location_list) {

auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

if (noise_value < 0.85) {

ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));

ofDrawSphere(l, radius * 0.5);

}

else {

for (auto& l : location_list) {

auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

if (radius == 300 || noise_value < 0.5) {

this->draw_sphere(l, radius * 0.5);

}

else if (noise_value < 0.70) {

ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));

ofDrawSphere(l, radius * 0.5);

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2020年5月31日

Random walk on the sphere. Draw by openFrameworks

[ Video ]

[ About ]
Random walk on the sphere.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	vector<ofMeshFace> triangle_list;
	vector<glm::vec3> location_list;

	vector<int> index_list;
	vector<int> param_list;
	vector<vector<int>> route_info_list;

	ofMesh mesh;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<ofMeshFace> triangle_list;

vector<glm::vec3> location_list;

vector<int> index_list;

vector<int> param_list;

vector<vector<int>> route_info_list;

ofMesh mesh;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();
	
	auto ico_sphere = ofIcoSpherePrimitive(250, 4);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

	for (auto& triangle : this->triangle_list) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		this->location_list.push_back(avg);
		this->param_list.push_back(0);
	}

	int span = 13;
	for (auto& location : this->location_list) {

		vector<int> route_info = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				route_info.push_back(index);
			}
		}

		this->route_info_list.push_back(route_info);
	}

	for (int i = 0; i < 150; i++) {

		this->index_list.push_back((int)ofRandom(this->location_list.size()));
	}
}

//--------------------------------------------------------------
void ofApp::update() {

	this->mesh.clear();

	for (int i = 0; i < this->index_list.size(); i++) {

		int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];
		for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

			if (this->param_list[next_index] <= 0) {

				this->param_list[next_index] = 30;
				this->index_list[i] = next_index;
				break;
			}
		}
	}

	for (int i = 0; i < this->location_list.size(); i++) {

		if (this->param_list[i] > 0) {

			int index = this->mesh.getNumVertices();

			this->mesh.addVertex(this->triangle_list[i].getVertex(0));
			this->mesh.addVertex(this->triangle_list[i].getVertex(1));
			this->mesh.addVertex(this->triangle_list[i].getVertex(2));

			this->mesh.addTriangle(index + 0, index + 1, index + 2);
		}

		if (this->param_list[i] > 0) { this->param_list[i] -= 1; }
	}

}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	ofSetColor(239);
	this->mesh.drawWireframe();

	ofSetColor(39);
	this->mesh.drawFaces();

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 4);

this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

for (auto& triangle : this->triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

this->location_list.push_back(avg);

this->param_list.push_back(0);

}

int span = 13;

for (auto& location : this->location_list) {

vector<int> route_info = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

route_info.push_back(index);

}

this->route_info_list.push_back(route_info);

}

for (int i = 0; i < 150; i++) {

this->index_list.push_back((int)ofRandom(this->location_list.size()));

}

//--------------------------------------------------------------

void ofApp::update() {

this->mesh.clear();

for (int i = 0; i < this->index_list.size(); i++) {

int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];

for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

if (this->param_list[next_index] <= 0) {

this->param_list[next_index] = 30;

this->index_list[i] = next_index;

break;

}

for (int i = 0; i < this->location_list.size(); i++) {

if (this->param_list[i] > 0) {

int index = this->mesh.getNumVertices();

this->mesh.addVertex(this->triangle_list[i].getVertex(0));

this->mesh.addVertex(this->triangle_list[i].getVertex(1));

this->mesh.addVertex(this->triangle_list[i].getVertex(2));

this->mesh.addTriangle(index + 0, index + 1, index + 2);

}

if (this->param_list[i] > 0) { this->param_list[i] -= 1; }

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(239);

this->mesh.drawWireframe();

ofSetColor(39);

this->mesh.drawFaces();

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200531

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2024年4月
月	火	水	木	金	土	日
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30