ofMesh – ページ 178 – プログラミング de 落描き

2020年7月26日

Circle and Arcs. Draw by openFrameworks

[ Video ]

[ About ]
円と円弧。

Circle and Arcs.

[ 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) {};

	void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end, glm::vec2 noise_seed);

	ofEasyCam cam;
	ofMesh face, frame;
};

#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) {};

void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end, glm::vec2 noise_seed);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();

	for (int x = -600; x <= 600; x += 600) {

		for (int y = -600; y <= 600; y += 600) {

			auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
			this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), 0, 140, 30, 0, 360, noise_seed);
			for (auto radius = 120; radius < 240; radius += 20) {

				this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), radius, 20, 60, 0, 180, noise_seed);
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(39);
	this->face.draw();

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

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end, glm::vec2 noise_seed) {

	auto index = frame_target.getNumVertices();

	auto noise_value = radius != 0 ? glm::vec2(ofNoise(noise_seed.x - radius * 0.003 + ofGetFrameNum() * 0.0085), ofNoise(noise_seed.y - radius * 0.003 + ofGetFrameNum() * 0.0085)) :
		glm::vec2(ofNoise(noise_seed.x - 100 * 0.003 + ofGetFrameNum() * 0.0085), ofNoise(noise_seed.y - 100 * 0.003 + ofGetFrameNum() * 0.0085));

	auto angle_x = ofMap(noise_value.x, 0, 1, -PI * 2, PI * 2);
	auto angle_y = ofMap(noise_value.y, 0, 1, -PI * 2, PI * 2);

	auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
	auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

	int deg_span = 3;
	for (int deg = deg_start; deg < deg_end; deg += deg_span) {

		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			vertex = location + glm::vec4(vertex, 0) * rotation_y * rotation_x;
		}

		face_target.addVertices(vertices);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);
		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);
		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

		auto frame_index = frame_target.getNumVertices();

		frame_target.addVertices(vertices);

		frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
		frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
		frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	}

	if (radius != 0) {

		face_target.addIndex(index + 0); face_target.addIndex(index + 3); face_target.addIndex(index + 7);
		face_target.addIndex(index + 0); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

		frame_target.addIndex(index + 0); frame_target.addIndex(index + 3);
		frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
		frame_target.addIndex(index + 7); frame_target.addIndex(index + 3);
		frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

		index = frame_target.getNumVertices() - 8;

		face_target.addIndex(index + 1); face_target.addIndex(index + 2); face_target.addIndex(index + 6);
		face_target.addIndex(index + 1); face_target.addIndex(index + 6); face_target.addIndex(index + 5);

		frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
		frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
		frame_target.addIndex(index + 6); frame_target.addIndex(index + 2);
		frame_target.addIndex(index + 6); frame_target.addIndex(index + 5);
	}

}

//--------------------------------------------------------------
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();

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int x = -600; x <= 600; x += 600) {

for (int y = -600; y <= 600; y += 600) {

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), 0, 140, 30, 0, 360, noise_seed);

for (auto radius = 120; radius < 240; radius += 20) {

this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), radius, 20, 60, 0, 180, noise_seed);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end, glm::vec2 noise_seed) {

auto index = frame_target.getNumVertices();

auto noise_value = radius != 0 ? glm::vec2(ofNoise(noise_seed.x - radius * 0.003 + ofGetFrameNum() * 0.0085), ofNoise(noise_seed.y - radius * 0.003 + ofGetFrameNum() * 0.0085)) :

glm::vec2(ofNoise(noise_seed.x - 100 * 0.003 + ofGetFrameNum() * 0.0085), ofNoise(noise_seed.y - 100 * 0.003 + ofGetFrameNum() * 0.0085));

auto angle_x = ofMap(noise_value.x, 0, 1, -PI * 2, PI * 2);

auto angle_y = ofMap(noise_value.y, 0, 1, -PI * 2, PI * 2);

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

int deg_span = 3;

for (int deg = deg_start; deg < deg_end; deg += deg_span) {

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

for (auto& vertex : vertices) {

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

}

face_target.addVertices(vertices);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

}

if (radius != 0) {

face_target.addIndex(index + 0); face_target.addIndex(index + 3); face_target.addIndex(index + 7);

face_target.addIndex(index + 0); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

index = frame_target.getNumVertices() - 8;

face_target.addIndex(index + 1); face_target.addIndex(index + 2); face_target.addIndex(index + 6);

face_target.addIndex(index + 1); face_target.addIndex(index + 6); face_target.addIndex(index + 5);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200726

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

2020年7月17日

Beautiful even against a bright background. Draw by openFrameworks

[ Video ]

[ About ]
明るい背景でも美しい。

Beautiful even against a bright background.

[ 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;

	int base_radius;
	int number_of_satellite;

	vector<glm::vec3> base_noise_seed_list;
	vector<vector<glm::vec3>> satellite_location_list;
	vector<vector<glm::vec2>> satellite_noise_seed_list;
	vector<glm::vec3> location_list;
	vector<glm::vec3> velocity_list;

	ofMesh face, frame;
};

#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;

int base_radius;

int number_of_satellite;

vector<glm::vec3> base_noise_seed_list;

vector<vector<glm::vec3>> satellite_location_list;

vector<vector<glm::vec2>> satellite_noise_seed_list;

vector<glm::vec3> location_list;

vector<glm::vec3> velocity_list;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);
	ofEnableDepthTest();

	this->base_radius = 120;
	this->number_of_satellite = 2;
	for (int i = 0; i < 3; i++) {

		this->base_noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));

		auto s_location_list = vector<glm::vec3>();
		auto s_noise_seed_list = vector<glm::vec2>();

		for (int k = 0; k < this->number_of_satellite; k++) {

			s_location_list.push_back(glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1))) * this->base_radius * 1.2);
			s_noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

		}

		this->satellite_location_list.push_back(s_location_list);
		this->satellite_noise_seed_list.push_back(s_noise_seed_list);
	}

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

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

		auto base_location = glm::vec3(
			ofMap(ofNoise(this->base_noise_seed_list[i].x, (ofGetFrameNum() + 0) * 0.005), 0, 1, -300, 300),
			ofMap(ofNoise(this->base_noise_seed_list[i].y, (ofGetFrameNum() + 0) * 0.005), 0, 1, -300, 300),
			ofMap(ofNoise(this->base_noise_seed_list[i].z, (ofGetFrameNum() + 0) * 0.005), 0, 1, -300, 300)
		);

		for (int k = 0; k < this->number_of_satellite; k++) {

			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].x, (ofGetFrameNum() + 0) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].y, (ofGetFrameNum() + 0) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
			auto satellite_location = glm::vec4(this->satellite_location_list[i][k], 0) * rotation_y * rotation_x;

			auto next_base_location = glm::vec3(
				ofMap(ofNoise(this->base_noise_seed_list[i].x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),
				ofMap(ofNoise(this->base_noise_seed_list[i].y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),
				ofMap(ofNoise(this->base_noise_seed_list[i].z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300)
			);

			auto next_rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
			auto next_rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
			auto next_satellite_location = glm::vec4(this->satellite_location_list[i][k], 0) * rotation_y * rotation_x;

			auto location = base_location + satellite_location;
			auto next_location = next_base_location + next_satellite_location;
			auto distance = location - next_location;

			auto future = glm::vec3(satellite_location) + distance * 80;
			auto random_deg_1 = ofRandom(360);
			auto random_deg_2 = ofRandom(360);
			future += glm::vec3(
				30 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),
				30 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),
				30 * cos(random_deg_2 * DEG_TO_RAD)
			);
			auto future_distance = future - satellite_location;

			this->frame.addVertex(location);
			this->face.addVertex(location);

			color.setHsb((ofGetFrameNum() * 5) % 255, 230, 200);

			this->frame.addColor(color);
			this->face.addColor(ofColor(color, 64));

			this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));
		}
	}

	for (int i = 0; i < this->frame.getNumVertices(); i++) {

		this->frame.setVertex(i, this->frame.getVertex(i) + this->velocity_list[i]);
		this->face.setVertex(i, this->face.getVertex(i) + this->velocity_list[i]);
	}

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

		if (glm::length(this->frame.getVertex(i)) > 720) {

			this->velocity_list.erase(this->velocity_list.begin() + i);
			this->frame.removeVertex(i);
			this->face.removeVertex(i);
			this->frame.removeColor(i);
			this->face.removeColor(i);
		}
	}

	this->frame.clearIndices();
	this->face.clearIndices();
	for (int i = 0; i < this->frame.getNumVertices(); i++) {

		vector<int> near_index_list;
		for (int k = i + 1; k < this->frame.getNumVertices(); k++) {

			auto distance = glm::distance(this->frame.getVertex(i), this->frame.getVertex(k));
			if (distance < 50) {

				this->frame.addIndex(i); this->frame.addIndex(k);
			}

			if (distance < 80) {

				near_index_list.push_back(k);
			}
		}

		if (near_index_list.size() > 3) {

			for (int k = 0; k < near_index_list.size() - 2; k++) {

				this->face.addIndex(i);
				this->face.addIndex(near_index_list[k]);
				this->face.addIndex(near_index_list[k + 1]);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.5);
	ofRotateY(ofGetFrameNum() * 0.75);

	for (int i = 0; i < this->frame.getNumVertices(); i++) {

		ofSetColor(this->frame.getColor(i));
		ofDrawSphere(this->frame.getVertex(i), 2);
	}

	this->frame.drawWireframe();
	this->face.draw();

	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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

ofEnableDepthTest();

this->base_radius = 120;

this->number_of_satellite = 2;

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

this->base_noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));

auto s_location_list = vector<glm::vec3>();

auto s_noise_seed_list = vector<glm::vec2>();

for (int k = 0; k < this->number_of_satellite; k++) {

s_location_list.push_back(glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1))) * this->base_radius * 1.2);

s_noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

}

this->satellite_location_list.push_back(s_location_list);

this->satellite_noise_seed_list.push_back(s_noise_seed_list);

}

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofColor color;

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

auto base_location = glm::vec3(

ofMap(ofNoise(this->base_noise_seed_list[i].x, (ofGetFrameNum() + 0) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(this->base_noise_seed_list[i].y, (ofGetFrameNum() + 0) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(this->base_noise_seed_list[i].z, (ofGetFrameNum() + 0) * 0.005), 0, 1, -300, 300)

);

for (int k = 0; k < this->number_of_satellite; k++) {

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].x, (ofGetFrameNum() + 0) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].y, (ofGetFrameNum() + 0) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto satellite_location = glm::vec4(this->satellite_location_list[i][k], 0) * rotation_y * rotation_x;

auto next_base_location = glm::vec3(

ofMap(ofNoise(this->base_noise_seed_list[i].x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(this->base_noise_seed_list[i].y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(this->base_noise_seed_list[i].z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300)

);

auto next_rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto next_rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto next_satellite_location = glm::vec4(this->satellite_location_list[i][k], 0) * rotation_y * rotation_x;

auto location = base_location + satellite_location;

auto next_location = next_base_location + next_satellite_location;

auto distance = location - next_location;

auto future = glm::vec3(satellite_location) + distance * 80;

auto random_deg_1 = ofRandom(360);

auto random_deg_2 = ofRandom(360);

future += glm::vec3(

30 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),

30 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),

30 * cos(random_deg_2 * DEG_TO_RAD)

);

auto future_distance = future - satellite_location;

this->frame.addVertex(location);

this->face.addVertex(location);

color.setHsb((ofGetFrameNum() * 5) % 255, 230, 200);

this->frame.addColor(color);

this->face.addColor(ofColor(color, 64));

this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));

}

for (int i = 0; i < this->frame.getNumVertices(); i++) {

this->frame.setVertex(i, this->frame.getVertex(i) + this->velocity_list[i]);

this->face.setVertex(i, this->face.getVertex(i) + this->velocity_list[i]);

}

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

if (glm::length(this->frame.getVertex(i)) > 720) {

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

this->frame.removeVertex(i);

this->face.removeVertex(i);

this->frame.removeColor(i);

this->face.removeColor(i);

}

this->frame.clearIndices();

this->face.clearIndices();

for (int i = 0; i < this->frame.getNumVertices(); i++) {

vector<int> near_index_list;

for (int k = i + 1; k < this->frame.getNumVertices(); k++) {

auto distance = glm::distance(this->frame.getVertex(i), this->frame.getVertex(k));

if (distance < 50) {

this->frame.addIndex(i); this->frame.addIndex(k);

}

if (distance < 80) {

near_index_list.push_back(k);

}

if (near_index_list.size() > 3) {

for (int k = 0; k < near_index_list.size() - 2; k++) {

this->face.addIndex(i);

this->face.addIndex(near_index_list[k]);

this->face.addIndex(near_index_list[k + 1]);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.5);

ofRotateY(ofGetFrameNum() * 0.75);

for (int i = 0; i < this->frame.getNumVertices(); i++) {

ofSetColor(this->frame.getColor(i));

ofDrawSphere(this->frame.getVertex(i), 2);

}

this->frame.drawWireframe();

this->face.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200717

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