2021年11月 – ページ 2 – プログラミング de 落描き

2021年11月27日

Torsion. Draw by openFrameworks

[ Video ]

[ About ]
幅を細くしたら紐っぽくなる。

If you make it thinner in width, it will look like string.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	int v_span = 1;
	int u_span = 30;
	int R = 230;
	int r = 50;

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

	float noise_seed = ofRandom(1000);
	auto color_flag = true;
	for (int v = 0; v <= 360; v += v_span) {

		bool flag = true;
		int u_start = ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.5, sin(v * DEG_TO_RAD) * 0.5, ofGetFrameNum() * 0.0025), 0, 1, -360 * 3, 360 * 3);
		int next_u = ofMap(ofNoise(noise_seed, cos((v + v_span) * DEG_TO_RAD) * 0.5, sin((v + v_span) * DEG_TO_RAD) * 0.5, ofGetFrameNum() * 0.0025), 0, 1, -360 * 3, 360 * 3);
		for (int u = u_start; u < u_start + 360; u += u_span) {

			if (flag) {

				face.addVertex(this->make_point(R, r, u, v));
				face.addVertex(this->make_point(R, r, u + u_span * 0.25, v));
				face.addVertex(this->make_point(R, r, next_u + u_span * 0.25, v + v_span));
				face.addVertex(this->make_point(R, r, next_u, v + v_span));

				line.addVertex(this->make_point(R, r, u, v));
				line.addVertex(this->make_point(R, r, u + u_span * 0.25, v));
				line.addVertex(this->make_point(R, r, next_u + u_span * 0.25, v + v_span));
				line.addVertex(this->make_point(R, r, next_u, v + v_span));

				ofColor face_color = ofColor(255);
				ofColor line_color = ofColor(0);

				color_flag = !color_flag;

				face.addColor(face_color);
				face.addColor(face_color);
				face.addColor(face_color);
				face.addColor(face_color);

				line.addColor(line_color);
				line.addColor(line_color);
				line.addColor(line_color);
				line.addColor(line_color);

				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

				line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);
				line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);
			}

			next_u += u_span;
			flag = !flag;
		}
	}

	face.drawFaces();
	line.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

//--------------------------------------------------------------
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(255);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

int v_span = 1;

int u_span = 30;

int R = 230;

int r = 50;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

float noise_seed = ofRandom(1000);

auto color_flag = true;

for (int v = 0; v <= 360; v += v_span) {

bool flag = true;

int u_start = ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.5, sin(v * DEG_TO_RAD) * 0.5, ofGetFrameNum() * 0.0025), 0, 1, -360 * 3, 360 * 3);

int next_u = ofMap(ofNoise(noise_seed, cos((v + v_span) * DEG_TO_RAD) * 0.5, sin((v + v_span) * DEG_TO_RAD) * 0.5, ofGetFrameNum() * 0.0025), 0, 1, -360 * 3, 360 * 3);

for (int u = u_start; u < u_start + 360; u += u_span) {

if (flag) {

face.addVertex(this->make_point(R, r, u, v));

face.addVertex(this->make_point(R, r, u + u_span * 0.25, v));

face.addVertex(this->make_point(R, r, next_u + u_span * 0.25, v + v_span));

face.addVertex(this->make_point(R, r, next_u, v + v_span));

line.addVertex(this->make_point(R, r, u, v));

line.addVertex(this->make_point(R, r, u + u_span * 0.25, v));

line.addVertex(this->make_point(R, r, next_u + u_span * 0.25, v + v_span));

line.addVertex(this->make_point(R, r, next_u, v + v_span));

ofColor face_color = ofColor(255);

ofColor line_color = ofColor(0);

color_flag = !color_flag;

face.addColor(face_color);

line.addColor(line_color);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);

}

next_u += u_span;

flag = !flag;

}

face.drawFaces();

line.drawWireframe();

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211127

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年11月26日2021年11月26日

Move to and fro. Draw by openFrameworks

[ Video ]

[ About ]
ノイズの変化をいつもと違う形で表示。

Display changes in noise in an unusual way.

[ 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 setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color, ofColor frame_color);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_color, ofColor frame_color);

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color, ofColor frame_color);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_color, ofColor frame_color);

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() {

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

	ofColor color;
	for (int x = -150; x <= 150; x += 5) {

		auto noise_value = ofMap(ofNoise(x * 0.04, ofGetFrameNum() * 0.002), 0, 1, 0, 10);
		int noise_value_int = noise_value;
		int base_hue = ofMap(x, -150, 150, 0, 128);
		for (int i = 0; i < 10; i++) {

			if (i < noise_value) {

				color.setHsb(base_hue, 130, 255);
				this->setBoxToMesh(this->face, this->frame, glm::vec3(x, -150 + i * 15, 0), 15, 5, 15, color, ofColor(0));
			}
			else {

				color.setHsb((base_hue + 128) % 255, 130, 255);
				this->setBoxToMesh(this->face, this->frame, glm::vec3(x, 150 - (10 - i) * 15, 0), 15, 5, 15, color, ofColor(0));
			}
		}

		color.setHsb((int)ofMap(noise_value - noise_value_int, 1, 0, base_hue, base_hue + 128) % 256, 130, 255);
		auto noise_location = glm::vec3(x, ofMap(noise_value - noise_value_int, 1, 0, -150 + (noise_value_int + 1) * 15, 150 - (10 - noise_value_int + 1) * 15), 0);
		this->setBoxToMesh(this->face, this->frame, noise_location, 15, 5, 15, color, ofColor(128));
	}
}

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

	this->cam.begin();
	ofRotateZ(270);
	ofTranslate(0, 7.5, 0);

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

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color, ofColor frame_color) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size, face_color, frame_color);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_color, ofColor frame_color) {

	int face_index = face_target.getNumVertices();
	int frame_index = frame_target.getNumVertices();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

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

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

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

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

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

	frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

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

	for (int i = 0; i < 8; i++) {

		face_target.addColor(face_color);
		frame_target.addColor(frame_color);
	}
}

//--------------------------------------------------------------
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() {

this->face.clear();

this->frame.clear();

ofColor color;

for (int x = -150; x <= 150; x += 5) {

auto noise_value = ofMap(ofNoise(x * 0.04, ofGetFrameNum() * 0.002), 0, 1, 0, 10);

int noise_value_int = noise_value;

int base_hue = ofMap(x, -150, 150, 0, 128);

for (int i = 0; i < 10; i++) {

if (i < noise_value) {

color.setHsb(base_hue, 130, 255);

this->setBoxToMesh(this->face, this->frame, glm::vec3(x, -150 + i * 15, 0), 15, 5, 15, color, ofColor(0));

}

else {

color.setHsb((base_hue + 128) % 255, 130, 255);

this->setBoxToMesh(this->face, this->frame, glm::vec3(x, 150 - (10 - i) * 15, 0), 15, 5, 15, color, ofColor(0));

}

color.setHsb((int)ofMap(noise_value - noise_value_int, 1, 0, base_hue, base_hue + 128) % 256, 130, 255);

auto noise_location = glm::vec3(x, ofMap(noise_value - noise_value_int, 1, 0, -150 + (noise_value_int + 1) * 15, 150 - (10 - noise_value_int + 1) * 15), 0);

this->setBoxToMesh(this->face, this->frame, noise_location, 15, 5, 15, color, ofColor(128));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(270);

ofTranslate(0, 7.5, 0);

this->face.draw();

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color, ofColor frame_color) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size, face_color, frame_color);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_color, ofColor frame_color) {

int face_index = face_target.getNumVertices();

int frame_index = frame_target.getNumVertices();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

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 + 1);

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

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

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

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

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

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

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

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

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

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

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

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

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

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

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

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

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

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

for (int i = 0; i < 8; i++) {

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211126

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2021年11月25日2021年11月25日

Mountains of Noise. Draw by openFrameworks

[ Video ]

[ About ]
二つの距離で最大の高さを調整する。

Adjust the maximum height in two distances.

[ 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 face, line;
};

#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 face, line;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	auto x_span = 1;
	auto z_span = 20;
	for (auto z = -100; z <= 100; z += z_span) {

		auto hue = ofRandom(255);
		ofColor color;
		color.setHsb(hue, 180, 255);

		auto noise_seed = ofRandom(1000);
		auto param_noise_seed = ofRandom(1000);
		auto start_index = this->face.getNumVertices();

		auto param_noise_value = ofNoise(z * 0.035, ofGetFrameNum() * 0.0001);

		for (auto x = -500; x <= 500; x += x_span) {

			vector<glm::vec3> vertices;

			auto noise_value = ofNoise(z * 0.05, x * 0.035, ofGetFrameNum() * 0.005);
			auto next_noise_value = ofNoise(z * 0.05, (x + x_span) * 0.035, ofGetFrameNum() * 0.005);

			if (abs(x) <= 150) {

				auto param = ofMap(param_noise_value, 0, 1, -150, 150);
				auto distance = abs(x - param);
				noise_value = noise_value * (distance > 30 ? 0.1 : ofMap(distance, 0, 30, 0.5, 0.1)) * (abs(x) < 100 ? 1 : ofMap(abs(x), 100, 150, 1, 0));
			}
			else {

				noise_value = 0;
			}

			if (abs(x + x_span) <= 150) {

				auto param = ofMap(param_noise_value, 0, 1, -150, 150);
				auto distance = abs((x + x_span) - param);
				next_noise_value = next_noise_value * (distance > 30 ? 0.1 : ofMap(distance, 0, 30, 0.5, 0.1)) * (abs(x + x_span) < 100 ? 1 : ofMap(abs(x + x_span), 100, 150, 1, 0));
			}
			else {

				next_noise_value = 0;
			}

			auto height = ofMap(noise_value, 0, 1, -150, 350);
			auto next_height = ofMap(next_noise_value, 0, 1, -150, 350);

			vertices.push_back(glm::vec3(x, -150, z - 4.5));
			vertices.push_back(glm::vec3(x + x_span, -150, z - 4.5));
			vertices.push_back(glm::vec3(x + x_span, next_height, z - 4.5));
			vertices.push_back(glm::vec3(x, height, z - 4.5));

			vertices.push_back(glm::vec3(x, -150, z + 4.5));
			vertices.push_back(glm::vec3(x + x_span, -150, z + 4.5));
			vertices.push_back(glm::vec3(x + x_span, next_height, z + 4.5));
			vertices.push_back(glm::vec3(x, height, z + 4.5));

			auto index = this->face.getNumVertices();
			this->face.addVertices(vertices);

			this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);
			this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

			this->face.addIndex(index + 4); this->face.addIndex(index + 5); this->face.addIndex(index + 6);
			this->face.addIndex(index + 4); this->face.addIndex(index + 6); this->face.addIndex(index + 7);

			this->face.addIndex(index + 0); this->face.addIndex(index + 4); this->face.addIndex(index + 5);
			this->face.addIndex(index + 0); this->face.addIndex(index + 5); this->face.addIndex(index + 1);

			this->face.addIndex(index + 2); this->face.addIndex(index + 6); this->face.addIndex(index + 7);
			this->face.addIndex(index + 2); this->face.addIndex(index + 7); this->face.addIndex(index + 3);

			this->line.addVertices(vertices);

			this->line.addIndex(index + 0); this->line.addIndex(index + 1);
			this->line.addIndex(index + 2); this->line.addIndex(index + 3);
			this->line.addIndex(index + 4); this->line.addIndex(index + 5);
			this->line.addIndex(index + 6); this->line.addIndex(index + 7);

			for (int i = index; i < index + 8; i++) {

				this->face.addColor(ofColor(0));
				this->line.addColor(ofColor(255));
			}
		}

		this->face.addIndex(start_index + 0); this->face.addIndex(start_index + 4); this->face.addIndex(start_index + 7);
		this->face.addIndex(start_index + 0); this->face.addIndex(start_index + 7); this->face.addIndex(start_index + 3);

		this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 3);
		this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 4);
		this->line.addIndex(start_index + 7); this->line.addIndex(start_index + 3);
		this->line.addIndex(start_index + 7); this->line.addIndex(start_index + 4);

		auto index = this->face.getNumVertices() - 8;

		this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 6);
		this->face.addIndex(index + 1); this->face.addIndex(index + 6); this->face.addIndex(index + 5);

		this->line.addIndex(index + 1); this->line.addIndex(index + 2);
		this->line.addIndex(index + 1); this->line.addIndex(index + 5);
		this->line.addIndex(index + 6); this->line.addIndex(index + 2);
		this->line.addIndex(index + 6); this->line.addIndex(index + 5);
	}
}

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

	this->cam.begin();
	ofRotateY(180 + ofGetFrameNum() * 0.75);

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

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

auto x_span = 1;

auto z_span = 20;

for (auto z = -100; z <= 100; z += z_span) {

auto hue = ofRandom(255);

ofColor color;

color.setHsb(hue, 180, 255);

auto noise_seed = ofRandom(1000);

auto param_noise_seed = ofRandom(1000);

auto start_index = this->face.getNumVertices();

auto param_noise_value = ofNoise(z * 0.035, ofGetFrameNum() * 0.0001);

for (auto x = -500; x <= 500; x += x_span) {

vector<glm::vec3> vertices;

auto noise_value = ofNoise(z * 0.05, x * 0.035, ofGetFrameNum() * 0.005);

auto next_noise_value = ofNoise(z * 0.05, (x + x_span) * 0.035, ofGetFrameNum() * 0.005);

if (abs(x) <= 150) {

auto param = ofMap(param_noise_value, 0, 1, -150, 150);

auto distance = abs(x - param);

noise_value = noise_value * (distance > 30 ? 0.1 : ofMap(distance, 0, 30, 0.5, 0.1)) * (abs(x) < 100 ? 1 : ofMap(abs(x), 100, 150, 1, 0));

}

else {

noise_value = 0;

}

if (abs(x + x_span) <= 150) {

auto param = ofMap(param_noise_value, 0, 1, -150, 150);

auto distance = abs((x + x_span) - param);

next_noise_value = next_noise_value * (distance > 30 ? 0.1 : ofMap(distance, 0, 30, 0.5, 0.1)) * (abs(x + x_span) < 100 ? 1 : ofMap(abs(x + x_span), 100, 150, 1, 0));

}

else {

next_noise_value = 0;

}

auto height = ofMap(noise_value, 0, 1, -150, 350);

auto next_height = ofMap(next_noise_value, 0, 1, -150, 350);

vertices.push_back(glm::vec3(x, -150, z - 4.5));

vertices.push_back(glm::vec3(x + x_span, -150, z - 4.5));

vertices.push_back(glm::vec3(x + x_span, next_height, z - 4.5));

vertices.push_back(glm::vec3(x, height, z - 4.5));

vertices.push_back(glm::vec3(x, -150, z + 4.5));

vertices.push_back(glm::vec3(x + x_span, -150, z + 4.5));

vertices.push_back(glm::vec3(x + x_span, next_height, z + 4.5));

vertices.push_back(glm::vec3(x, height, z + 4.5));

auto index = this->face.getNumVertices();

this->face.addVertices(vertices);

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

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

this->face.addIndex(index + 4); this->face.addIndex(index + 5); this->face.addIndex(index + 6);

this->face.addIndex(index + 4); this->face.addIndex(index + 6); this->face.addIndex(index + 7);

this->face.addIndex(index + 0); this->face.addIndex(index + 4); this->face.addIndex(index + 5);

this->face.addIndex(index + 0); this->face.addIndex(index + 5); this->face.addIndex(index + 1);

this->face.addIndex(index + 2); this->face.addIndex(index + 6); this->face.addIndex(index + 7);

this->face.addIndex(index + 2); this->face.addIndex(index + 7); this->face.addIndex(index + 3);

this->line.addVertices(vertices);

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

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

this->line.addIndex(index + 4); this->line.addIndex(index + 5);

this->line.addIndex(index + 6); this->line.addIndex(index + 7);

for (int i = index; i < index + 8; i++) {

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

this->line.addColor(ofColor(255));

}

this->face.addIndex(start_index + 0); this->face.addIndex(start_index + 4); this->face.addIndex(start_index + 7);

this->face.addIndex(start_index + 0); this->face.addIndex(start_index + 7); this->face.addIndex(start_index + 3);

this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 3);

this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 4);

this->line.addIndex(start_index + 7); this->line.addIndex(start_index + 3);

this->line.addIndex(start_index + 7); this->line.addIndex(start_index + 4);

auto index = this->face.getNumVertices() - 8;

this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 6);

this->face.addIndex(index + 1); this->face.addIndex(index + 6); this->face.addIndex(index + 5);

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

this->line.addIndex(index + 1); this->line.addIndex(index + 5);

this->line.addIndex(index + 6); this->line.addIndex(index + 2);

this->line.addIndex(index + 6); this->line.addIndex(index + 5);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(180 + ofGetFrameNum() * 0.75);

this->face.draw();

this->line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211125

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年11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