noise – ページ 159 – プログラミング de 落描き

2021年8月26日

Gradient Ribbons. Draw by openFrameworsk

[ Video ]

[ About ]
色指定のHSBのHueをFrameCountで増やす。

Increase HSB Hue of color specification by FrameCount.

[ 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<ofMesh> mesh_list;
	vector<ofMesh> frame_list;
	vector<glm::vec3> direction_list;
	vector<glm::vec3> noise_seed_list;
	vector<float> hue_list;
	vector<float> noise_step_list;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<ofMesh> mesh_list;

vector<ofMesh> frame_list;

vector<glm::vec3> direction_list;

vector<glm::vec3> noise_seed_list;

vector<float> hue_list;

vector<float> noise_step_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	for (int i = 0; i < 150; i++) {

		ofMesh mesh, frame;
		frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		glm::vec3 base = glm::vec3(ofRandom(-100, 100), ofRandom(-100, 100), ofRandom(-100, 100));
		switch ((int)ofRandom(3)) {
		case 0:
			mesh.addVertex(base + glm::vec3(5, 0, 0));
			mesh.addVertex(base + glm::vec3(-5, 0, 0));
			frame.addVertex(base + glm::vec3(5, 0, 0));
			frame.addVertex(base + glm::vec3(-5, 0, 0));
			break;
		case 1:
			mesh.addVertex(base + glm::vec3(0, 5, 0));
			mesh.addVertex(base + glm::vec3(0, -5, 0));
			frame.addVertex(base + glm::vec3(0, 5, 0));
			frame.addVertex(base + glm::vec3(0, -5, 0));
			break;
		case 2:
			mesh.addVertex(base + glm::vec3(0, 0, 5));
			mesh.addVertex(base + glm::vec3(0, 0, -5));
			frame.addVertex(base + glm::vec3(0, 0, 5));
			frame.addVertex(base + glm::vec3(0, 0, -5));
			break;
		}

		int hue = ofRandom(255);
		this->hue_list.push_back(hue);
		ofColor mesh_color;
		mesh_color.setHsb(hue, 255, 255);

		mesh.addColor(mesh_color);
		mesh.addColor(mesh_color);

		frame.addColor(ofColor(239)); 
		frame.addColor(ofColor(239));

		frame.addIndex(0);
		frame.addIndex(1);

		this->mesh_list.push_back(mesh);
		this->frame_list.push_back(frame);

		auto direction = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
		direction = glm::normalize(direction) * 5;
		this->direction_list.push_back(direction);

		auto noise_seed = glm::vec3(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));
		this->noise_seed_list.push_back(noise_seed);

		this->noise_step_list.push_back(0.f);
	}
}

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

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

		while (true) {

			this->noise_step_list[i] += 0.01;

			auto angle_x = ofMap(ofNoise(this->noise_seed_list[i].x, this->noise_step_list[i]), 0, 1, -PI, PI);
			auto angle_y = ofMap(ofNoise(this->noise_seed_list[i].y, this->noise_step_list[i]), 0, 1, -PI, PI);
			auto angle_z = ofMap(ofNoise(this->noise_seed_list[i].z, this->noise_step_list[i]), 0, 1, -PI, PI);

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

			glm::vec3 rotate_direction = glm::vec4(this->direction_list[i], 0) * rotation_z * rotation_y * rotation_x;

			auto right = this->mesh_list[i].getVertex(this->mesh_list[i].getNumVertices() - 2);
			auto left = this->mesh_list[i].getVertex(this->mesh_list[i].getNumVertices() - 1);
			auto center = (right + left) / 2;

			auto feature = center + rotate_direction;
			if (glm::length(feature) < 300) {

				this->mesh_list[i].addVertex(right + rotate_direction);
				this->mesh_list[i].addVertex(left + rotate_direction);

				this->frame_list[i].addVertex(right + rotate_direction);
				this->frame_list[i].addVertex(left + rotate_direction);

				this->hue_list[i] = (int)(this->hue_list[i] + 6) % 255;

				ofColor mesh_color;
				mesh_color.setHsb(this->hue_list[i], 255, 255);

				this->mesh_list[i].addColor(mesh_color);
				this->mesh_list[i].addColor(mesh_color);

				this->frame_list[i].addColor(ofColor(239));
				this->frame_list[i].addColor(ofColor(239));

				break;
			}
		}

		if (this->mesh_list[i].getNumVertices() > 150) {

			this->mesh_list[i].removeVertex(0);
			this->mesh_list[i].removeVertex(1);

			this->mesh_list[i].removeColor(0);
			this->mesh_list[i].removeColor(1);
		}
		else {

			int index = this->mesh_list[i].getNumVertices() - 1;
			this->mesh_list[i].addIndex(index); this->mesh_list[i].addIndex(index - 2); this->mesh_list[i].addIndex(index - 3);
			this->mesh_list[i].addIndex(index); this->mesh_list[i].addIndex(index - 1); this->mesh_list[i].addIndex(index - 3);
		}

		if (this->frame_list[i].getNumVertices() > 100) {

			this->frame_list[i].removeVertex(0);
			this->frame_list[i].removeVertex(1);

			this->frame_list[i].removeColor(0);
			this->frame_list[i].removeColor(1);
		}
		else {

			int index = this->frame_list[i].getNumVertices() - 1;
			this->frame_list[i].addIndex(index); this->frame_list[i].addIndex(index - 2);
			this->frame_list[i].addIndex(index - 1); this->frame_list[i].addIndex(index - 3);

			if (index == 99) {

				this->frame_list[i].addIndex(98);
				this->frame_list[i].addIndex(99);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.25);

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

		this->mesh_list[i].draw();
		this->frame_list[i].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);

ofEnableDepthTest();

for (int i = 0; i < 150; i++) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

glm::vec3 base = glm::vec3(ofRandom(-100, 100), ofRandom(-100, 100), ofRandom(-100, 100));

switch ((int)ofRandom(3)) {

case 0:

mesh.addVertex(base + glm::vec3(5, 0, 0));

mesh.addVertex(base + glm::vec3(-5, 0, 0));

frame.addVertex(base + glm::vec3(5, 0, 0));

frame.addVertex(base + glm::vec3(-5, 0, 0));

break;

case 1:

mesh.addVertex(base + glm::vec3(0, 5, 0));

mesh.addVertex(base + glm::vec3(0, -5, 0));

frame.addVertex(base + glm::vec3(0, 5, 0));

frame.addVertex(base + glm::vec3(0, -5, 0));

break;

case 2:

mesh.addVertex(base + glm::vec3(0, 0, 5));

mesh.addVertex(base + glm::vec3(0, 0, -5));

frame.addVertex(base + glm::vec3(0, 0, 5));

frame.addVertex(base + glm::vec3(0, 0, -5));

break;

}

int hue = ofRandom(255);

this->hue_list.push_back(hue);

ofColor mesh_color;

mesh_color.setHsb(hue, 255, 255);

mesh.addColor(mesh_color);

frame.addColor(ofColor(239));

frame.addIndex(0);

frame.addIndex(1);

this->mesh_list.push_back(mesh);

this->frame_list.push_back(frame);

auto direction = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

direction = glm::normalize(direction) * 5;

this->direction_list.push_back(direction);

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

this->noise_seed_list.push_back(noise_seed);

this->noise_step_list.push_back(0.f);

}

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

void ofApp::update() {

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

while (true) {

this->noise_step_list[i] += 0.01;

auto angle_x = ofMap(ofNoise(this->noise_seed_list[i].x, this->noise_step_list[i]), 0, 1, -PI, PI);

auto angle_y = ofMap(ofNoise(this->noise_seed_list[i].y, this->noise_step_list[i]), 0, 1, -PI, PI);

auto angle_z = ofMap(ofNoise(this->noise_seed_list[i].z, this->noise_step_list[i]), 0, 1, -PI, PI);

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

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

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

glm::vec3 rotate_direction = glm::vec4(this->direction_list[i], 0) * rotation_z * rotation_y * rotation_x;

auto right = this->mesh_list[i].getVertex(this->mesh_list[i].getNumVertices() - 2);

auto left = this->mesh_list[i].getVertex(this->mesh_list[i].getNumVertices() - 1);

auto center = (right + left) / 2;

auto feature = center + rotate_direction;

if (glm::length(feature) < 300) {

this->mesh_list[i].addVertex(right + rotate_direction);

this->mesh_list[i].addVertex(left + rotate_direction);

this->frame_list[i].addVertex(right + rotate_direction);

this->frame_list[i].addVertex(left + rotate_direction);

this->hue_list[i] = (int)(this->hue_list[i] + 6) % 255;

ofColor mesh_color;

mesh_color.setHsb(this->hue_list[i], 255, 255);

this->mesh_list[i].addColor(mesh_color);

this->frame_list[i].addColor(ofColor(239));

break;

}

if (this->mesh_list[i].getNumVertices() > 150) {

this->mesh_list[i].removeVertex(0);

this->mesh_list[i].removeVertex(1);

this->mesh_list[i].removeColor(0);

this->mesh_list[i].removeColor(1);

}

else {

int index = this->mesh_list[i].getNumVertices() - 1;

this->mesh_list[i].addIndex(index); this->mesh_list[i].addIndex(index - 2); this->mesh_list[i].addIndex(index - 3);

this->mesh_list[i].addIndex(index); this->mesh_list[i].addIndex(index - 1); this->mesh_list[i].addIndex(index - 3);

}

if (this->frame_list[i].getNumVertices() > 100) {

this->frame_list[i].removeVertex(0);

this->frame_list[i].removeVertex(1);

this->frame_list[i].removeColor(0);

this->frame_list[i].removeColor(1);

}

else {

int index = this->frame_list[i].getNumVertices() - 1;

this->frame_list[i].addIndex(index); this->frame_list[i].addIndex(index - 2);

this->frame_list[i].addIndex(index - 1); this->frame_list[i].addIndex(index - 3);

if (index == 99) {

this->frame_list[i].addIndex(98);

this->frame_list[i].addIndex(99);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.25);

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

this->mesh_list[i].draw();

this->frame_list[i].drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/openframeworks20210826

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2021年8月25日2021年8月25日

Broken and repaired. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ関数で生成した値を、0.5を閾値として動作を変える。

Change the behavior of the value generated by the noise function with 0.5 as the threshold.

[ 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() {

	ofSeedRandom(39);

	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) {

			auto angle = 0.f;
			if (noise_value < 0.4) {
			
				angle = ofMap(noise_value, 0, 0.4, PI * 10, PI);
			}
			else {

				angle = ofMap(noise_value, 0.4, 0.5, PI, 0);
			}

			rotation_x = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));
			rotation_y = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));
			rotation_z = glm::rotate(glm::mat4(), angle, 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;
			if (noise_value < 0.5) {
			
				vertex += glm::normalize(avg) * ofMap(noise_value, 0, 0.5, radius * 2, radius);
			}
			else {

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

		this->frame.addColor(ofColor(239, 39, 39));
		this->frame.addColor(ofColor(239, 39, 39));
		this->frame.addColor(ofColor(239, 39, 39));

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

		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() {

ofSeedRandom(39);

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) {

auto angle = 0.f;

if (noise_value < 0.4) {

angle = ofMap(noise_value, 0, 0.4, PI * 10, PI);

}

else {

angle = ofMap(noise_value, 0.4, 0.5, PI, 0);

}

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

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

rotation_z = glm::rotate(glm::mat4(), angle, 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;

if (noise_value < 0.5) {

vertex += glm::normalize(avg) * ofMap(noise_value, 0, 0.5, radius * 2, radius);

}

else {

vertex += avg;

}

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

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

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

this->frame.addColor(ofColor(239, 39, 39));

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

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 ]
https://github.com/junkiyoshi/Insta20210825

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2021年8月23日2021年8月23日

Lack font. Draw by openFrameworks

[ Video ]

[ About ]

[ 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) {};

	bool foundLocation(glm::vec3 value);

	ofEasyCam cam;
	ofMesh face, frame;

	ofTrueTypeFont font;
	vector<glm::vec3> location_list;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

bool foundLocation(glm::vec3 value);

ofEasyCam cam;

ofMesh face, frame;

ofTrueTypeFont font;

vector<glm::vec3> location_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 200, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofClear(0);
	ofSetColor(0);

	string word = "LACK";
	this->font.drawString(word, this->font.stringWidth(word) * -0.56, this->font.stringHeight(word) - 250);

	fbo.end();

	int span = 5;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 0; x < fbo.getWidth(); x += span) {

		for (int y = 0; y < fbo.getHeight(); y += span) {

			ofColor color = pixels.getColor(x, y);
			if (color != ofColor(0, 0)) {

					this->location_list.push_back(glm::vec3(x - fbo.getWidth() * 0.5, y - fbo.getHeight() * 0.5, 0));
			}
		}
	}
}

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

	ofSeedRandom(39);

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

	int span = 5;
	float threshold = 0.4;
	float frame_param = ofGetFrameNum() * 0.015;
	float coordinate_param = 0.0065;

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

		for (int z = -100; z <= 100; z += 50) {

			auto x = this->location_list[i].x;
			auto y = this->location_list[i].y;

			auto noise_location = glm::vec3(x, y, z);
			auto noise_value = ofNoise(glm::vec3(noise_location.x * coordinate_param, noise_location.y * coordinate_param, noise_location.z * coordinate_param + frame_param));
			if (noise_value < threshold) { continue; }

			auto loc_1 = glm::vec3(x - span, y, z);
			auto noise_1 = this->foundLocation(loc_1) ? ofNoise(glm::vec3(loc_1.x * coordinate_param, loc_1.y * coordinate_param, loc_1.z * coordinate_param + frame_param)) : 0;
			auto loc_2 = glm::vec3(x, y + span, z);
			auto noise_2 = this->foundLocation(loc_2) ? ofNoise(glm::vec3(loc_2.x * coordinate_param, loc_2.y * coordinate_param, loc_2.z * coordinate_param + frame_param)) : 0;
			auto loc_3 = glm::vec3(x + span, y, z);
			auto noise_3 = this->foundLocation(loc_3) ? ofNoise(glm::vec3(loc_3.x * coordinate_param, loc_3.y * coordinate_param, loc_3.z * coordinate_param + frame_param)) : 0;
			auto loc_4 = glm::vec3(x, y - span, z);
			auto noise_4 = this->foundLocation(loc_4) ? ofNoise(glm::vec3(loc_4.x * coordinate_param, loc_4.y * coordinate_param, loc_4.z * coordinate_param + frame_param)) : 0;

			auto index = this->face.getNumVertices();
			vector<glm::vec3> vertices;

			vertices.push_back(glm::vec3(x - span * 0.5, y - span * 0.5, z));
			vertices.push_back(glm::vec3(x + span * 0.5, y - span * 0.5, z));
			vertices.push_back(glm::vec3(x + span * 0.5, y + span * 0.5, z));
			vertices.push_back(glm::vec3(x - span * 0.5, y + span * 0.5, z));

			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);

			if (noise_1 < threshold) {

				this->frame.addVertex(vertices[0]);
				this->frame.addVertex(vertices[3]);

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

			if (noise_2 < threshold) {

				this->frame.addVertex(vertices[2]);
				this->frame.addVertex(vertices[3]);

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

			if (noise_3 < threshold) {

				this->frame.addVertex(vertices[1]);
				this->frame.addVertex(vertices[2]);

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

			if (noise_4 < threshold) {

				this->frame.addVertex(vertices[0]);
				this->frame.addVertex(vertices[1]);

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

			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);

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

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

	this->cam.end();
}

//--------------------------------------------------------------
bool ofApp::foundLocation(glm::vec3 value) {

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

		if (this->location_list[i] == glm::vec3(value.x, value.y, 0)) {

			return true;
		}
	}

	return false;
}

//--------------------------------------------------------------
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(1.5);

ofEnableDepthTest();

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

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 200, true, true, true);

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

ofClear(0);

ofSetColor(0);

string word = "LACK";

this->font.drawString(word, this->font.stringWidth(word) * -0.56, this->font.stringHeight(word) - 250);

fbo.end();

int span = 5;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < fbo.getWidth(); x += span) {

for (int y = 0; y < fbo.getHeight(); y += span) {

ofColor color = pixels.getColor(x, y);

if (color != ofColor(0, 0)) {

this->location_list.push_back(glm::vec3(x - fbo.getWidth() * 0.5, y - fbo.getHeight() * 0.5, 0));

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int span = 5;

float threshold = 0.4;

float frame_param = ofGetFrameNum() * 0.015;

float coordinate_param = 0.0065;

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

for (int z = -100; z <= 100; z += 50) {

auto x = this->location_list[i].x;

auto y = this->location_list[i].y;

auto noise_location = glm::vec3(x, y, z);

auto noise_value = ofNoise(glm::vec3(noise_location.x * coordinate_param, noise_location.y * coordinate_param, noise_location.z * coordinate_param + frame_param));

if (noise_value < threshold) { continue; }

auto loc_1 = glm::vec3(x - span, y, z);

auto noise_1 = this->foundLocation(loc_1) ? ofNoise(glm::vec3(loc_1.x * coordinate_param, loc_1.y * coordinate_param, loc_1.z * coordinate_param + frame_param)) : 0;

auto loc_2 = glm::vec3(x, y + span, z);

auto noise_2 = this->foundLocation(loc_2) ? ofNoise(glm::vec3(loc_2.x * coordinate_param, loc_2.y * coordinate_param, loc_2.z * coordinate_param + frame_param)) : 0;

auto loc_3 = glm::vec3(x + span, y, z);

auto noise_3 = this->foundLocation(loc_3) ? ofNoise(glm::vec3(loc_3.x * coordinate_param, loc_3.y * coordinate_param, loc_3.z * coordinate_param + frame_param)) : 0;

auto loc_4 = glm::vec3(x, y - span, z);

auto noise_4 = this->foundLocation(loc_4) ? ofNoise(glm::vec3(loc_4.x * coordinate_param, loc_4.y * coordinate_param, loc_4.z * coordinate_param + frame_param)) : 0;

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(x - span * 0.5, y - span * 0.5, z));

vertices.push_back(glm::vec3(x + span * 0.5, y - span * 0.5, z));

vertices.push_back(glm::vec3(x + span * 0.5, y + span * 0.5, z));

vertices.push_back(glm::vec3(x - span * 0.5, y + span * 0.5, z));

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);

if (noise_1 < threshold) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[3]);

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

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

}

if (noise_2 < threshold) {

this->frame.addVertex(vertices[2]);

this->frame.addVertex(vertices[3]);

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

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

}

if (noise_3 < threshold) {

this->frame.addVertex(vertices[1]);

this->frame.addVertex(vertices[2]);

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

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

}

if (noise_4 < threshold) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[1]);

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofSetColor(239);

this->frame.draw();

ofSetColor(39);

this->face.draw();

this->cam.end();

}

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

bool ofApp::foundLocation(glm::vec3 value) {

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

if (this->location_list[i] == glm::vec3(value.x, value.y, 0)) {

return true;

}

return false;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210823

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2024年5月
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