ofMesh – ページ 41 – プログラミング de 落描き

2022年10月15日

rotate radial. Draw by openFrameworks

[ Video ]

[ About ]
放射線を回転させる。

[ 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;
	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;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(255);
	
	ofEnableDepthTest();
	ofSetLineWidth(2);
	
	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->mesh.clear();
	
	auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

	for (int radius = 50; radius <= 300; radius += 30) {

		auto rotation = glm::vec3(
			ofMap(ofNoise(noise_param.x, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),
			ofMap(ofNoise(noise_param.y, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),
			ofMap(ofNoise(noise_param.z, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360));

		int start_index = this->mesh.getNumVertices();
		int index = start_index;
		for (int deg = 0; deg < 360; deg += 1) {

			auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

			auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

			this->mesh.addVertex(vertex);

			if (deg > 0) {

				this->mesh.addIndex(index - 1);
				this->mesh.addIndex(index);
			}

			index++;
		}

		this->mesh.addIndex(this->mesh.getNumVertices() - 1);
		this->mesh.addIndex(start_index);
	}

	int index_span = 30;
	for (int index = 0; index < this->mesh.getNumVertices() - 360; index += index_span) {

		this->mesh.addIndex(index);
		this->mesh.addIndex(index + 360);
	}
}

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

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

	this->mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofEnableDepthTest();

ofSetLineWidth(2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

for (int radius = 50; radius <= 300; radius += 30) {

auto rotation = glm::vec3(

ofMap(ofNoise(noise_param.x, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),

ofMap(ofNoise(noise_param.y, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),

ofMap(ofNoise(noise_param.z, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360));

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

int index = start_index;

for (int deg = 0; deg < 360; deg += 1) {

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

this->mesh.addVertex(vertex);

if (deg > 0) {

this->mesh.addIndex(index - 1);

this->mesh.addIndex(index);

}

index++;

}

this->mesh.addIndex(this->mesh.getNumVertices() - 1);

this->mesh.addIndex(start_index);

}

int index_span = 30;

for (int index = 0; index < this->mesh.getNumVertices() - 360; index += index_span) {

this->mesh.addIndex(index);

this->mesh.addIndex(index + 360);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221015

2022年10月12日

Monochrome Circles. Draw by openFrameworks

[ Video ]

[ About ]
白色サークルず。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"	

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	for (int x = 90; x < ofGetWindowWidth(); x += 180) {

		for (int y = 90; y < ofGetWindowHeight(); y += 180) {

			ofPushMatrix();
			ofTranslate(x, y);

			for (int radius = 30; radius < 75; radius += 3) {

				ofMesh face, line;
				line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

				int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 360);
				int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -240, 240);

				face.addVertex(glm::vec3());
				face.addColor(ofColor(255, 32));
				for (int deg = start_deg; deg < start_deg + deg_len; deg += 2) {

					face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
					face.addColor(ofColor(255, 64));

					line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
					line.addColor(255);

					if (deg != start_deg) {

						face.addIndex(0);
						face.addIndex(face.getNumVertices() - 1);
						face.addIndex(face.getNumVertices() - 2);

						line.addIndex(line.getNumVertices() - 1);
						line.addIndex(line.getNumVertices() - 2);
					}
				}

				face.draw();
				line.draw();
			}

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 90; x < ofGetWindowWidth(); x += 180) {

for (int y = 90; y < ofGetWindowHeight(); y += 180) {

ofPushMatrix();

ofTranslate(x, y);

for (int radius = 30; radius < 75; radius += 3) {

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 360);

int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -240, 240);

face.addVertex(glm::vec3());

face.addColor(ofColor(255, 32));

for (int deg = start_deg; deg < start_deg + deg_len; deg += 2) {

face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

face.addColor(ofColor(255, 64));

line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

line.addColor(255);

if (deg != start_deg) {

face.addIndex(0);

face.addIndex(face.getNumVertices() - 1);

face.addIndex(face.getNumVertices() - 2);

line.addIndex(line.getNumVertices() - 1);

line.addIndex(line.getNumVertices() - 2);

}

face.draw();

line.draw();

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221012

2022年10月10日

Colors. Draw by openFrameworks

[ Video ]

[ About ]
色。

[ Source ]

#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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);

	int size = 10;
	for (int x = 30; x < 690; x += size) {

		for (int y = 30; y < 690; y += size) {

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

			this->mesh.addVertex(glm::vec3(x, y, 0));
			this->mesh.addVertex(glm::vec3(x + size, y, 0));
			this->mesh.addVertex(glm::vec3(x + size, y + size, 0));
			this->mesh.addVertex(glm::vec3(x, y + size, 0));

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

			this->mesh.addIndex(index + 0);
			this->mesh.addIndex(index + 2);
			this->mesh.addIndex(index + 3);

			this->mesh.addColor(ofColor(0));
			this->mesh.addColor(ofColor(0));
			this->mesh.addColor(ofColor(0));
			this->mesh.addColor(ofColor(0));
		}
	}
}

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

	ofSeedRandom(39);
	auto noise_seed = glm::vec4(ofRandom(1000), ofRandom(1000), ofRandom(1000), ofRandom(1000));

	auto noise_step = 0.001;
	auto frame_step = 0.03;

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

		auto vertex = this->mesh.getVertex(i);
		auto noise_value = glm::vec3(
			ofNoise(noise_seed.r, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),
			ofNoise(noise_seed.g, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),
			ofNoise(noise_seed.b, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step));

		auto r = noise_value.r < 0.2 ? 0 : noise_value.r < 0.7 ? ofMap(noise_value.r, 0.2, 0.7, 0, 255) : 255;
		auto g = noise_value.g < 0.2 ? 0 : noise_value.g < 0.7 ? ofMap(noise_value.g, 0.2, 0.7, 0, 255) : 255;
		auto b = noise_value.b < 0.2 ? 0 : noise_value.b < 0.7 ? ofMap(noise_value.b, 0.2, 0.7, 0, 255) : 255;

		this->mesh.setColor(i, ofColor(r, g, b, 255));
	}
}

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

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

int size = 10;

for (int x = 30; x < 690; x += size) {

for (int y = 30; y < 690; y += size) {

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

this->mesh.addVertex(glm::vec3(x, y, 0));

this->mesh.addVertex(glm::vec3(x + size, y, 0));

this->mesh.addVertex(glm::vec3(x + size, y + size, 0));

this->mesh.addVertex(glm::vec3(x, y + size, 0));

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

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

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

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

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

this->mesh.addIndex(index + 3);

this->mesh.addColor(ofColor(0));

}

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

void ofApp::update() {

ofSeedRandom(39);

auto noise_seed = glm::vec4(ofRandom(1000), ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto noise_step = 0.001;

auto frame_step = 0.03;

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

auto vertex = this->mesh.getVertex(i);

auto noise_value = glm::vec3(

ofNoise(noise_seed.r, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),

ofNoise(noise_seed.g, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),

ofNoise(noise_seed.b, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step));

auto r = noise_value.r < 0.2 ? 0 : noise_value.r < 0.7 ? ofMap(noise_value.r, 0.2, 0.7, 0, 255) : 255;

auto g = noise_value.g < 0.2 ? 0 : noise_value.g < 0.7 ? ofMap(noise_value.g, 0.2, 0.7, 0, 255) : 255;

auto b = noise_value.b < 0.2 ? 0 : noise_value.b < 0.7 ? ofMap(noise_value.b, 0.2, 0.7, 0, 255) : 255;

this->mesh.setColor(i, ofColor(r, g, b, 255));

}

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

void ofApp::draw() {

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221010

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