openFrameworks – ページ 403 – プログラミング de 落描き

2021年7月28日2021年7月28日

Box with a gap. Draw by openFrameworks

[ Video ]

[ About ]
複数の面をノイズ関数で動かす。

Moving Multiple Surfaces with Noise Functions.

[ 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::vec2 make_point(int len, int param);
	void draw_panel(vector<glm::vec3> vertices);

	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::vec2 make_point(int len, int param);

void draw_panel(vector<glm::vec3> vertices);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

}

//--------------------------------------------------------------
void ofApp::draw() {
	
	int len = 300;
	int size = 60;

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);
	
	for (int s_1 = len * -0.5; s_1 <= len * 0.5; s_1 += size) {

		for (int s_2 = len * -0.5; s_2 <= len * 0.5; s_2 += size) {

			vector<glm::vec3> vertices;
			auto p = (len + size) * 0.5;

			vertices.clear();
			vertices.push_back(glm::vec3(p, s_1 - size * 0.5, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(p, s_1 + size * 0.5, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(p, s_1 + size * 0.5, s_2 + size * 0.5));
			vertices.push_back(glm::vec3(p, s_1 - size * 0.5, s_2 + size * 0.5));
			
			auto noise_value = ofNoise(p * 0.003, s_1 * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);
			auto add = 0;
			if (noise_value > 0.65) {

				add = ofMap(noise_value, 0.65, 1, 0, size * 2);
			}
			for (auto& vertex : vertices) {

				vertex.x += add;
			}

			this->draw_panel(vertices);

			vertices.clear();
			vertices.push_back(glm::vec3(-p, s_1 - size * 0.5, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(-p, s_1 + size * 0.5, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(-p, s_1 + size * 0.5, s_2 + size * 0.5));
			vertices.push_back(glm::vec3(-p, s_1 - size * 0.5, s_2 + size * 0.5));

			noise_value = ofNoise(p * 0.003, s_1 * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);
			add = 0;
			if (noise_value > 0.65) {

				add = ofMap(noise_value, 0.65, 1, 0, size * 2);
			}
			for (auto& vertex : vertices) {

				vertex.x -= add;
			}

			this->draw_panel(vertices);

			vertices.clear();
			vertices.push_back(glm::vec3(s_1 - size * 0.5, p, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, p, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, p, s_2 + size * 0.5));
			vertices.push_back(glm::vec3(s_1 - size * 0.5, p, s_2 + size * 0.5));

			noise_value = ofNoise(s_1 * 0.003, p * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);
			add = 0;
			if (noise_value > 0.65) {

				add = ofMap(noise_value, 0.65, 1, 0, size * 2);
			}
			for (auto& vertex : vertices) {

				vertex.y += add;
			}

			this->draw_panel(vertices);

			vertices.clear();
			vertices.push_back(glm::vec3(s_1 - size * 0.5, -p, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, -p, s_2 - size * 0.5));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, -p, s_2 + size * 0.5));
			vertices.push_back(glm::vec3(s_1 - size * 0.5, -p, s_2 + size * 0.5));

			noise_value = ofNoise(s_1 * 0.003, p * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);
			add = 0;
			if (noise_value > 0.65) {

				add = ofMap(noise_value, 0.65, 1, 0, size * 2);
			}
			for (auto& vertex : vertices) {

				vertex.y -= add;
			}

			this->draw_panel(vertices);

			vertices.clear();
			vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 - size * 0.5, p));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 - size * 0.5, p));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 + size * 0.5, p));
			vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 + size * 0.5, p));

			noise_value = ofNoise(s_1 * 0.003, s_2* 0.003, p * 0.003, ofGetFrameNum() * 0.01);
			add = 0;
			if (noise_value > 0.65) {

				add = ofMap(noise_value, 0.65, 1, 0, size * 2);
			}
			for (auto& vertex : vertices) {

				vertex.z += add;
			}

			this->draw_panel(vertices);

			vertices.clear();
			vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 - size * 0.5, -p));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 - size * 0.5, -p));
			vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 + size * 0.5, -p));
			vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 + size * 0.5, -p));

			noise_value = ofNoise(s_1 * 0.003, s_2 * 0.003, p * 0.003, ofGetFrameNum() * 0.01);
			add = 0;
			if (noise_value > 0.65) {

				add = ofMap(noise_value, 0.65, 1, 0, size * 2);
			}
			for (auto& vertex : vertices) {

				vertex.z -= add;
			}

			this->draw_panel(vertices);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_panel(vector<glm::vec3> vertices) {

	ofMesh face, line;
	face.addVertices(vertices);

	face.addIndex(0); face.addIndex(1); face.addIndex(2);
	face.addIndex(0); face.addIndex(2); face.addIndex(3);

	ofSetColor(239);
	face.draw();

	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	line.addVertices(vertices);

	line.addIndex(0); line.addIndex(1);
	line.addIndex(1); line.addIndex(2);
	line.addIndex(2); line.addIndex(3);
	line.addIndex(3); line.addIndex(0);

	ofSetColor(39);
	line.drawWireframe();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int len = 300;

int size = 60;

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

for (int s_1 = len * -0.5; s_1 <= len * 0.5; s_1 += size) {

for (int s_2 = len * -0.5; s_2 <= len * 0.5; s_2 += size) {

vector<glm::vec3> vertices;

auto p = (len + size) * 0.5;

vertices.clear();

vertices.push_back(glm::vec3(p, s_1 - size * 0.5, s_2 - size * 0.5));

vertices.push_back(glm::vec3(p, s_1 + size * 0.5, s_2 - size * 0.5));

vertices.push_back(glm::vec3(p, s_1 + size * 0.5, s_2 + size * 0.5));

vertices.push_back(glm::vec3(p, s_1 - size * 0.5, s_2 + size * 0.5));

auto noise_value = ofNoise(p * 0.003, s_1 * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);

auto add = 0;

if (noise_value > 0.65) {

add = ofMap(noise_value, 0.65, 1, 0, size * 2);

}

for (auto& vertex : vertices) {

vertex.x += add;

}

this->draw_panel(vertices);

vertices.clear();

vertices.push_back(glm::vec3(-p, s_1 - size * 0.5, s_2 - size * 0.5));

vertices.push_back(glm::vec3(-p, s_1 + size * 0.5, s_2 - size * 0.5));

vertices.push_back(glm::vec3(-p, s_1 + size * 0.5, s_2 + size * 0.5));

vertices.push_back(glm::vec3(-p, s_1 - size * 0.5, s_2 + size * 0.5));

noise_value = ofNoise(p * 0.003, s_1 * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);

add = 0;

if (noise_value > 0.65) {

add = ofMap(noise_value, 0.65, 1, 0, size * 2);

}

for (auto& vertex : vertices) {

vertex.x -= add;

}

this->draw_panel(vertices);

vertices.clear();

vertices.push_back(glm::vec3(s_1 - size * 0.5, p, s_2 - size * 0.5));

vertices.push_back(glm::vec3(s_1 + size * 0.5, p, s_2 - size * 0.5));

vertices.push_back(glm::vec3(s_1 + size * 0.5, p, s_2 + size * 0.5));

vertices.push_back(glm::vec3(s_1 - size * 0.5, p, s_2 + size * 0.5));

noise_value = ofNoise(s_1 * 0.003, p * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);

add = 0;

if (noise_value > 0.65) {

add = ofMap(noise_value, 0.65, 1, 0, size * 2);

}

for (auto& vertex : vertices) {

vertex.y += add;

}

this->draw_panel(vertices);

vertices.clear();

vertices.push_back(glm::vec3(s_1 - size * 0.5, -p, s_2 - size * 0.5));

vertices.push_back(glm::vec3(s_1 + size * 0.5, -p, s_2 - size * 0.5));

vertices.push_back(glm::vec3(s_1 + size * 0.5, -p, s_2 + size * 0.5));

vertices.push_back(glm::vec3(s_1 - size * 0.5, -p, s_2 + size * 0.5));

noise_value = ofNoise(s_1 * 0.003, p * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01);

add = 0;

if (noise_value > 0.65) {

add = ofMap(noise_value, 0.65, 1, 0, size * 2);

}

for (auto& vertex : vertices) {

vertex.y -= add;

}

this->draw_panel(vertices);

vertices.clear();

vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 - size * 0.5, p));

vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 - size * 0.5, p));

vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 + size * 0.5, p));

vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 + size * 0.5, p));

noise_value = ofNoise(s_1 * 0.003, s_2* 0.003, p * 0.003, ofGetFrameNum() * 0.01);

add = 0;

if (noise_value > 0.65) {

add = ofMap(noise_value, 0.65, 1, 0, size * 2);

}

for (auto& vertex : vertices) {

vertex.z += add;

}

this->draw_panel(vertices);

vertices.clear();

vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 - size * 0.5, -p));

vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 - size * 0.5, -p));

vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 + size * 0.5, -p));

vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 + size * 0.5, -p));

noise_value = ofNoise(s_1 * 0.003, s_2 * 0.003, p * 0.003, ofGetFrameNum() * 0.01);

add = 0;

if (noise_value > 0.65) {

add = ofMap(noise_value, 0.65, 1, 0, size * 2);

}

for (auto& vertex : vertices) {

vertex.z -= add;

}

this->draw_panel(vertices);

}

this->cam.end();

}

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

void ofApp::draw_panel(vector<glm::vec3> vertices) {

ofMesh face, line;

face.addVertices(vertices);

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

face.addIndex(0); face.addIndex(2); face.addIndex(3);

ofSetColor(239);

face.draw();

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

line.addVertices(vertices);

line.addIndex(0); line.addIndex(1);

line.addIndex(1); line.addIndex(2);

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

line.addIndex(3); line.addIndex(0);

ofSetColor(39);

line.drawWireframe();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210728

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2021年7月27日2021年7月27日

Spinning sphere pieces. Draw by openFrameworks

[ Video ]

[ About ]
ofIcoSpherePrimitive.getMesh()から取得出来る座標を回転させる。

Rotate the coordinates that can be obtained from ofIcoSpherePrimitive.getMesh().

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

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

	ofEasyCam cam;

	vector<ofMeshFace> triangle_list;
	ofMesh mesh, 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;

vector<ofMeshFace> triangle_list;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

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

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

	auto ico_sphere = ofIcoSpherePrimitive(300, 3);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

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

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

	int radius = 300;
	for (int i = 0; i < this->triangle_list.size(); i++) {

		glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;

		auto noise_value = ofNoise(avg.x * 0.005, avg.y * 0.005,avg.z * 0.005, ofGetFrameNum() * 0.01);

		glm::highp_dmat4 rotation_x, rotation_y, rotation_z;

		if (noise_value < 0.5) {

			rotation_x = glm::rotate(glm::mat4(), ofMap(noise_value, 0, 0.5, PI * 3, 0), glm::vec3(1, 0, 0));
			rotation_y = glm::rotate(glm::mat4(), ofMap(noise_value, 0, 0.5, PI * 3, 0), glm::vec3(0, 1, 0));
			rotation_z = glm::rotate(glm::mat4(), ofMap(noise_value, 0, 0.5, PI * 3, 0), glm::vec3(0, 0, 1));
		}
		else {

			rotation_x = glm::rotate(glm::mat4(), 0.f, glm::vec3(1, 0, 0));
			rotation_y = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 1, 0));
			rotation_z = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 0, 1));
		}

		vector<glm::vec3> vertices;

		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + 2) - avg);

		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius - 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius - 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius - 2) - avg);

		for (auto& vertex : vertices)  {

			vertex = glm::vec4(vertex, 0) *  rotation_z * rotation_y * rotation_x;
			vertex += avg;
		}
	
		this->mesh.addVertices(vertices);
		this->frame.addVertices(vertices);

		this->mesh.addColor(ofColor(239));
		this->mesh.addColor(ofColor(239));
		this->mesh.addColor(ofColor(239));
		
		this->mesh.addColor(ofColor(39));
		this->mesh.addColor(ofColor(39));
		this->mesh.addColor(ofColor(39));

		this->frame.addColor(ofColor(39));
		this->frame.addColor(ofColor(39));
		this->frame.addColor(ofColor(39));

		this->frame.addColor(ofColor(239));
		this->frame.addColor(ofColor(239));
		this->frame.addColor(ofColor(239));
		
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

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

		this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);
		this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);
		this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

		this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);
		this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);
		this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);

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

	ofSetColor(39);
	this->frame.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(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(300, 3);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

}

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

void ofApp::update() {

this->mesh.clear();

this->frame.clear();

int radius = 300;

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

glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.005, avg.y * 0.005,avg.z * 0.005, ofGetFrameNum() * 0.01);

glm::highp_dmat4 rotation_x, rotation_y, rotation_z;

if (noise_value < 0.5) {

rotation_x = glm::rotate(glm::mat4(), ofMap(noise_value, 0, 0.5, PI * 3, 0), glm::vec3(1, 0, 0));

rotation_y = glm::rotate(glm::mat4(), ofMap(noise_value, 0, 0.5, PI * 3, 0), glm::vec3(0, 1, 0));

rotation_z = glm::rotate(glm::mat4(), ofMap(noise_value, 0, 0.5, PI * 3, 0), glm::vec3(0, 0, 1));

}

else {

rotation_x = glm::rotate(glm::mat4(), 0.f, glm::vec3(1, 0, 0));

rotation_y = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 1, 0));

rotation_z = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 0, 1));

}

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius - 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius - 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius - 2) - avg);

for (auto& vertex : vertices) {

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

vertex += avg;

}

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

this->mesh.addColor(ofColor(239));

this->mesh.addColor(ofColor(39));

this->frame.addColor(ofColor(39));

this->frame.addColor(ofColor(239));

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

this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

ofSetColor(239);

this->mesh.drawFaces();

ofSetColor(39);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2021年7月26日2021年7月26日

Character tunnel. Draw by openFramewroks

[ Video ]

[ About ]
文字を筒状に並べてノイズで文字を変える。

Arrange the letters in a cylindrical shape and change the letters with noise.

[ 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;

	float font_size;
	ofTrueTypeFont font;
};

#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;

float font_size;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

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

	this->font_size = 80;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(90);

	string word = "ABCDEFGHEJKLMNOPQRSTUVWXYZ!";
	int sample_count = 100;
	vector<glm::vec3> base_location;
	for (int y = -500; y <= 500; y += 100) {

		base_location.push_back(glm::vec3(0, y, 0));
	}

	for (int k = 0; k < base_location.size(); k++) {

		auto noise_param = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		for (int i = 0; i < 24; i++) {

			auto rotation = glm::rotate(glm::mat4(), (i * 15.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto noise_location = glm::vec4(this->font_size * 0.5, base_location[k].y + this->font_size * -0.5, 320, 0) * rotation;

			int word_index = (int)ofMap(ofNoise(noise_location.x * 0.0001, noise_location.y * 0.0001 - ofGetFrameNum() * 0.005, noise_location.z * 0.0001), 0, 1, 0, word.size() * 2) % word.size();

			ofPath chara_path = this->font.getCharacterAsPoints(word[word_index], true, false);
			vector<ofPolyline> outline = chara_path.getOutline();

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 350);
					auto rotation = glm::rotate(glm::mat4(), (i * 15.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation;
					location += base_location[k];

					ofVertex(location);
				}
			}
			ofEndShape();

			ofNoFill();
			ofSetColor(39);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 350);
					auto rotation = glm::rotate(glm::mat4(), (i * 15.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation;
					location += base_location[k];

					ofVertex(location);
				}
			}
			ofEndShape();
		}
	}

	this->cam.end();
}

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

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

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

this->font_size = 80;

this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

string word = "ABCDEFGHEJKLMNOPQRSTUVWXYZ!";

int sample_count = 100;

vector<glm::vec3> base_location;

for (int y = -500; y <= 500; y += 100) {

base_location.push_back(glm::vec3(0, y, 0));

}

for (int k = 0; k < base_location.size(); k++) {

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

for (int i = 0; i < 24; i++) {

auto rotation = glm::rotate(glm::mat4(), (i * 15.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto noise_location = glm::vec4(this->font_size * 0.5, base_location[k].y + this->font_size * -0.5, 320, 0) * rotation;

int word_index = (int)ofMap(ofNoise(noise_location.x * 0.0001, noise_location.y * 0.0001 - ofGetFrameNum() * 0.005, noise_location.z * 0.0001), 0, 1, 0, word.size() * 2) % word.size();

ofPath chara_path = this->font.getCharacterAsPoints(word[word_index], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(239);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 350);

auto rotation = glm::rotate(glm::mat4(), (i * 15.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation;

location += base_location[k];

ofVertex(location);

}

ofEndShape();

ofNoFill();

ofSetColor(39);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 350);

auto rotation = glm::rotate(glm::mat4(), (i * 15.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation;

location += base_location[k];

ofVertex(location);

}

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210726

[ Kinako ]

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