openframeworks – ページ 36 – プログラミング de 落描き

2023年6月1日

Gradation layer. Draw by openFrameworks

[ Video ]

[ About ]
グラデーション層。

[ 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) {};

	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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableDepthTest();
}

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

	this->mesh.clear();

	float span = 1;
	ofColor color;
	for (float y = 30; y < ofGetWindowHeight() - 30; y += span) {

		this->mesh.addVertex(glm::vec3(30, y, 0));
		this->mesh.addVertex(glm::vec3(ofGetWindowWidth() - 30, y, 0));
		this->mesh.addVertex(glm::vec3(ofGetWindowWidth() - 30, y + span, 0));
		this->mesh.addVertex(glm::vec3(30, y + span, 0));

		for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) {

			auto noise_value = ofMap(ofNoise(this->mesh.getVertex(i).y * 0.002, ofGetFrameNum() * 0.005), 0, 1, 0, 5);
			int int_noise_value = noise_value;
			float param = noise_value - int_noise_value;
			param = abs(param - 0.5);

			color.setHsb(ofMap(int_noise_value, 0, 5, 0, 255), 200, 255, ofMap(param, 0, 0.5, 255, 32));
			this->mesh.addColor(color);
		}

		this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);
		this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);
	}
}

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

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

this->mesh.clear();

float span = 1;

ofColor color;

for (float y = 30; y < ofGetWindowHeight() - 30; y += span) {

this->mesh.addVertex(glm::vec3(30, y, 0));

this->mesh.addVertex(glm::vec3(ofGetWindowWidth() - 30, y, 0));

this->mesh.addVertex(glm::vec3(ofGetWindowWidth() - 30, y + span, 0));

this->mesh.addVertex(glm::vec3(30, y + span, 0));

for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) {

auto noise_value = ofMap(ofNoise(this->mesh.getVertex(i).y * 0.002, ofGetFrameNum() * 0.005), 0, 1, 0, 5);

int int_noise_value = noise_value;

float param = noise_value - int_noise_value;

param = abs(param - 0.5);

color.setHsb(ofMap(int_noise_value, 0, 5, 0, 255), 200, 255, ofMap(param, 0, 0.5, 255, 32));

this->mesh.addColor(color);

}

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);

}

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

void ofApp::draw() {

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230601

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2023年5月31日

Grouping boxes. Draw by openFrameworks

[ Video ]

[ About ]
箱をグループ分け。

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

}

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

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

	for (int base_x = -60; base_x <= 60; base_x += 15) {

		for (int base_z = -60; base_z <= 60; base_z += 15) {

			auto noise_value = ofMap(ofNoise(base_x * 0.003, base_z * 0.003, ofGetFrameNum() * 0.0015), 0, 1, 0, 10);
			int int_noise_value = noise_value;

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

				if (i < int_noise_value) {

					ofPushMatrix();
					ofTranslate(base_x, -150 + i * 15, base_z);

					ofSetColor(39);
					ofFill();
					ofDrawBox(15);

					ofSetColor(239);
					ofNoFill();
					ofDrawBox(15);

					ofPopMatrix();
				}
				else if (int_noise_value < i) {

					ofPushMatrix();
					ofTranslate(base_x, 150 - (10 - i) * 15, base_z);

					ofSetColor(39);
					ofFill();
					ofDrawBox(15);

					ofSetColor(239);
					ofNoFill();
					ofDrawBox(15);

					ofPopMatrix();
				}
				else {

					auto top = glm::vec3(0, -150 + i * 15, 0);
					auto bottom = glm::vec3(0, 150 - (10 - i) * 15, 0);

					auto param = noise_value - int_noise_value;

					auto location = bottom + (top - bottom) * param;
					location += glm::vec3(base_x, 0, base_z);

					ofColor fill_color(239);
					ofColor no_fill_color(39);

					if (param < 0.2) {

						fill_color = ofColor(ofMap(param, 0, 0.2, 39, 239));
						no_fill_color = ofColor(ofMap(param, 0, 0.2, 239, 39));
					}
					else if(0.8 < param) {

						fill_color = ofColor(ofMap(param, 1, 0.8, 39, 239));
						no_fill_color = ofColor(ofMap(param, 1, 0.8, 239, 39));
					}

					ofPushMatrix();
					ofTranslate(location);

					ofSetColor(fill_color);
					ofFill();
					ofDrawBox(15);

					ofSetColor(no_fill_color);
					ofNoFill();
					ofDrawBox(15);

					ofPopMatrix();
				}
			}
		}
	}

	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();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

for (int base_x = -60; base_x <= 60; base_x += 15) {

for (int base_z = -60; base_z <= 60; base_z += 15) {

auto noise_value = ofMap(ofNoise(base_x * 0.003, base_z * 0.003, ofGetFrameNum() * 0.0015), 0, 1, 0, 10);

int int_noise_value = noise_value;

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

if (i < int_noise_value) {

ofPushMatrix();

ofTranslate(base_x, -150 + i * 15, base_z);

ofSetColor(39);

ofFill();

ofDrawBox(15);

ofSetColor(239);

ofNoFill();

ofDrawBox(15);

ofPopMatrix();

}

else if (int_noise_value < i) {

ofPushMatrix();

ofTranslate(base_x, 150 - (10 - i) * 15, base_z);

ofSetColor(39);

ofFill();

ofDrawBox(15);

ofSetColor(239);

ofNoFill();

ofDrawBox(15);

ofPopMatrix();

}

else {

auto top = glm::vec3(0, -150 + i * 15, 0);

auto bottom = glm::vec3(0, 150 - (10 - i) * 15, 0);

auto param = noise_value - int_noise_value;

auto location = bottom + (top - bottom) * param;

location += glm::vec3(base_x, 0, base_z);

ofColor fill_color(239);

ofColor no_fill_color(39);

if (param < 0.2) {

fill_color = ofColor(ofMap(param, 0, 0.2, 39, 239));

no_fill_color = ofColor(ofMap(param, 0, 0.2, 239, 39));

}

else if(0.8 < param) {

fill_color = ofColor(ofMap(param, 1, 0.8, 39, 239));

no_fill_color = ofColor(ofMap(param, 1, 0.8, 239, 39));

}

ofPushMatrix();

ofTranslate(location);

ofSetColor(fill_color);

ofFill();

ofDrawBox(15);

ofSetColor(no_fill_color);

ofNoFill();

ofDrawBox(15);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230531

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2023年5月30日

Soft circles. Draw by openFrameworks

[ Video ]

[ About ]
やわかい円。

[ 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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

	ofSeedRandom(39);

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

	vector<glm::vec3> base_location = { glm::vec3() };
	auto noise_location = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	ofColor face_color = ofColor(239);
	for (auto& location : base_location) {

		for (int radius = 50; radius <= 300; radius += 10) {

			this->setRingToMesh(this->face, this->frame, location, radius, 10, face_color);
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * -3);

	this->face.draw();

	ofSetColor(39);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color) {

	int index = face_target.getNumVertices();

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

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			auto noise_value_y = ofNoise(
				glm::vec4(vertex.y * 0.001 + ofGetFrameNum() * 0.0025));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(noise_value_y, 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

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

		auto face_index = face_target.getNumVertices();
		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);

		for (int i = 0; i < vertices.size(); i++) {

			face_target.addColor(face_color);
		}

		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);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

vector<glm::vec3> base_location = { glm::vec3() };

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

ofColor face_color = ofColor(239);

for (auto& location : base_location) {

for (int radius = 50; radius <= 300; radius += 10) {

this->setRingToMesh(this->face, this->frame, location, radius, 10, face_color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * -3);

this->face.draw();

ofSetColor(39);

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color) {

int index = face_target.getNumVertices();

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

vector<glm::vec3> vertices;

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

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

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

for (auto& vertex : vertices) {

auto noise_value_y = ofNoise(

glm::vec4(vertex.y * 0.001 + ofGetFrameNum() * 0.0025));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(noise_value_y, 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

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

}

auto face_index = face_target.getNumVertices();

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);

for (int i = 0; i < vertices.size(); i++) {

face_target.addColor(face_color);

}

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);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230530

[ほしいものリスト]
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