openframeworks – ページ 312 – プログラミング de 落描き

2021年1月23日

3 layers Sphere. Draw by openFrameworks

[ Video ]

[ About ]
3 layers Sphere.

[ 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(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	float phi_deg_step = 10;
	float theta_deg_step = 3;
	float threshold = 0.55;

	ofColor color;
	vector<ofColor> base_color_list;
	vector<int> hex_list = { 0xFF9800, 0x03A9F4, 0xf44336 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}
	
	int color_index = 0;
	for (float radius = 100; radius <= 200; radius += 50) {

		auto rotate_noise = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				if (noise_value < threshold) { continue; }

				auto noise_1 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				auto noise_2 = ofNoise(radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				auto noise_3 = ofNoise(radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				auto noise_4 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

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

				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

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

					auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.x, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(0, 1, 0));
					auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.y, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(1, 0, 0));

					vertices[i] = glm::vec4(vertices[i], 0) * rotation_y * rotation_x;
				}

				this->face.addVertices(vertices);

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

					this->face.addColor(ofColor(base_color_list[color_index]));
				}

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

				if (noise_1 < threshold) {

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

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

				if (noise_2 < threshold) {

					this->line.addVertex(vertices[0]);
					this->line.addVertex(vertices[2]);

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

				if (noise_3 < threshold) {

					this->line.addVertex(vertices[1]);
					this->line.addVertex(vertices[3]);

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

				if (noise_4 < threshold) {

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

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

		color_index++;
	}
}

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

	this->cam.begin();

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

	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);

ofSetColor(39);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

float phi_deg_step = 10;

float theta_deg_step = 3;

float threshold = 0.55;

ofColor color;

vector<ofColor> base_color_list;

vector<int> hex_list = { 0xFF9800, 0x03A9F4, 0xf44336 };

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

int color_index = 0;

for (float radius = 100; radius <= 200; radius += 50) {

auto rotate_noise = glm::vec2(ofRandom(1000), ofRandom(1000));

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

if (noise_value < threshold) { continue; }

auto noise_1 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_2 = ofNoise(radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_3 = ofNoise(radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_4 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

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

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.x, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.y, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(1, 0, 0));

vertices[i] = glm::vec4(vertices[i], 0) * rotation_y * rotation_x;

}

this->face.addVertices(vertices);

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

this->face.addColor(ofColor(base_color_list[color_index]));

}

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

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

if (noise_1 < threshold) {

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

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

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

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

}

if (noise_2 < threshold) {

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

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

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

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

}

if (noise_3 < threshold) {

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

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

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

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

}

if (noise_4 < threshold) {

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

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

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

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

}

color_index++;

}

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

void ofApp::draw() {

this->cam.begin();

this->line.draw();

this->face.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/INsta20210123

2021年1月22日2021年1月22日

TO LIVE IS TO THINK. Draw by openFrameworks

[ Video ]

[ About ]
TO LIVE IS TO THINK.

[ 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;
	ofFbo fbo;
	ofTrueTypeFont font;
	vector<string> word_list;
	int word_index;
	string draw_word;

	vector<glm::vec3> location_list;
	vector<int> param_list;

	int span, number_of_columns;
	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;

ofFbo fbo;

ofTrueTypeFont font;

vector<string> word_list;

int word_index;

string draw_word;

vector<glm::vec3> location_list;

vector<int> param_list;

int span, number_of_columns;

ofMesh face, line;

};

#include "ofApp.h"	

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

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

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

	this->fbo.allocate(ofGetWidth(), ofGetHeight());

	this->font.loadFont("fonts/msgothic.ttc", 200, true, true, true);
	this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	int word_index = 0;
	this->word_list = { "TO", "LIVE", "IS", "TO", "THINK" };
}

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

	if (ofGetFrameNum() % 90 == 0) {

		this->draw_word = this->word_list[word_index];
		word_index = (word_index + 1) % this->word_list.size();
	}

	this->location_list.clear();
	this->param_list.clear();


	this->fbo.begin();
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofClear(0);
	ofSetColor(0, 92);

	this->font.drawString(this->draw_word, this->font.stringWidth(this->draw_word) * -0.5, 0);

	this->fbo.end();

	this->span = 5;
	this->number_of_columns = this->fbo.getWidth() / this->span;
	ofPixels pixels;
	this->fbo.readToPixels(pixels);
	for (int y = 0; y < this->fbo.getHeight(); y += span) {

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

			this->location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetHeight() * 0.5, 0));

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

				this->param_list.push_back(1);
			}
			else {

				this->param_list.push_back(0);
			}
		}
	}

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

	float threshold = 0.4;
	float len_param = 0.005;
	float frame_param = -0.02;

	int z = 0;

	auto tmp_location_list = this->location_list;
	for (auto& tmp : tmp_location_list) {

		tmp += glm::vec3(0, 0, z);
	}

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

		auto location = tmp_location_list[i];

		auto noise_value = ofNoise(location.x * len_param, location.y * len_param + ofGetFrameNum() * frame_param) * this->param_list[i];
		if (noise_value < threshold) { continue; }

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3(location.x - this->span * 0.5, location.y - this->span * 0.5, location.z));
		vertices.push_back(glm::vec3(location.x + this->span * 0.5, location.y - this->span * 0.5, location.z));
		vertices.push_back(glm::vec3(location.x - this->span * 0.5, location.y + this->span * 0.5, location.z));
		vertices.push_back(glm::vec3(location.x + this->span * 0.5, location.y + this->span * 0.5, location.z));

		this->face.addVertices(vertices);

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

		auto tmp_index = i - this->number_of_columns;
		if (tmp_index < 0 || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

		tmp_index = i + this->number_of_columns;
		if (tmp_index > tmp_location_list.size() || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

		tmp_index = i + 1;
		if (tmp_index % this->number_of_columns == 0 || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

			this->line.addVertex(vertices[1]);
			this->line.addVertex(vertices[3]);

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

		tmp_index = i - 1;
		if (i % this->number_of_columns == 0 || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

			this->line.addVertex(vertices[0]);
			this->line.addVertex(vertices[2]);

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

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

	this->cam.begin();
	ofTranslate(0, ofGetHeight() * -0.25);

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

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

	ofRotateX(270);
	this->fbo.draw(this->fbo.getWidth() * -0.5, ofGetHeight() * -0.5);

	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(3);

ofEnableDepthTest();

this->fbo.allocate(ofGetWidth(), ofGetHeight());

this->font.loadFont("fonts/msgothic.ttc", 200, true, true, true);

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

int word_index = 0;

this->word_list = { "TO", "LIVE", "IS", "TO", "THINK" };

}

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

void ofApp::update() {

if (ofGetFrameNum() % 90 == 0) {

this->draw_word = this->word_list[word_index];

word_index = (word_index + 1) % this->word_list.size();

}

this->location_list.clear();

this->param_list.clear();

this->fbo.begin();

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

ofClear(0);

ofSetColor(0, 92);

this->font.drawString(this->draw_word, this->font.stringWidth(this->draw_word) * -0.5, 0);

this->fbo.end();

this->span = 5;

this->number_of_columns = this->fbo.getWidth() / this->span;

ofPixels pixels;

this->fbo.readToPixels(pixels);

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

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

this->location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetHeight() * 0.5, 0));

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

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

this->param_list.push_back(1);

}

else {

this->param_list.push_back(0);

}

this->face.clear();

this->line.clear();

float threshold = 0.4;

float len_param = 0.005;

float frame_param = -0.02;

int z = 0;

auto tmp_location_list = this->location_list;

for (auto& tmp : tmp_location_list) {

tmp += glm::vec3(0, 0, z);

}

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

auto location = tmp_location_list[i];

auto noise_value = ofNoise(location.x * len_param, location.y * len_param + ofGetFrameNum() * frame_param) * this->param_list[i];

if (noise_value < threshold) { continue; }

vector<glm::vec3> vertices;

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

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

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

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

this->face.addVertices(vertices);

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

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 1);

auto tmp_index = i - this->number_of_columns;

if (tmp_index < 0 || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

tmp_index = i + this->number_of_columns;

if (tmp_index > tmp_location_list.size() || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

tmp_index = i + 1;

if (tmp_index % this->number_of_columns == 0 || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

tmp_index = i - 1;

if (i % this->number_of_columns == 0 || ofNoise(tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(0, ofGetHeight() * -0.25);

ofSetColor(239);

this->face.draw();

ofSetColor(39);

this->line.drawWireframe();

ofRotateX(270);

this->fbo.draw(this->fbo.getWidth() * -0.5, ofGetHeight() * -0.5);

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210122

2021年1月21日2021年1月21日

Character mirage. Draw by openFrameworks

[ Video ]

[ About ]
Character mirage.

[ 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<glm::vec3> location_list;
	vector<int> param_list;

	int span, number_of_columns;
	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;

vector<glm::vec3> location_list;

vector<int> param_list;

int span, number_of_columns;

ofMesh face, line;

};

#include "ofApp.h"	

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

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

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

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

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 300, true, true, true);

	string word = "A";
	font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word));

	fbo.end();

	this->span = 5;
	this->number_of_columns = fbo.getWidth() / this->span;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int y = 0; y < fbo.getHeight(); y += span) {

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

			this->location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetWidth() * 0.25, 0));

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

				this->param_list.push_back(1);
			}
			else {

				this->param_list.push_back(0);
			}
		}
	}

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

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

	ofSeedRandom(39);

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

	float threshold = 0.45;
	float len_param = 0.005;
	float frame_param = -0.02;

	for (int z = -150; z <= 150; z += 150) {

		auto tmp_location_list = this->location_list;
		auto noise_seed = ofRandom(1000);
		for (auto& tmp : tmp_location_list) {

			tmp += glm::vec3(0, 0, z);
		}

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

			auto location = tmp_location_list[i];

			auto noise_value = ofNoise(noise_seed, location.x * len_param, location.y * len_param + ofGetFrameNum() * frame_param) * this->param_list[i];
			if (noise_value < threshold) { continue; }

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(location.x - this->span * 0.5, location.y - this->span * 0.5, location.z));
			vertices.push_back(glm::vec3(location.x + this->span * 0.5, location.y - this->span * 0.5, location.z));
			vertices.push_back(glm::vec3(location.x - this->span * 0.5, location.y + this->span * 0.5, location.z));
			vertices.push_back(glm::vec3(location.x + this->span * 0.5, location.y + this->span * 0.5, location.z));

			this->face.addVertices(vertices);

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

			auto tmp_index = i - this->number_of_columns;
			if (tmp_index < 0 || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

			tmp_index = i + this->number_of_columns;
			if (tmp_index > tmp_location_list.size() || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

			tmp_index = i + 1;
			if (tmp_index % this->number_of_columns == 0 || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

				this->line.addVertex(vertices[1]);
				this->line.addVertex(vertices[3]);

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

			tmp_index = i - 1;
			if (i % this->number_of_columns == 0 || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

				this->line.addVertex(vertices[0]);
				this->line.addVertex(vertices[2]);

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

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

	this->cam.begin();

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

	ofSetColor(39);
	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(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

ofFbo fbo;

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

fbo.begin();

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

ofClear(0);

ofSetColor(0);

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 300, true, true, true);

string word = "A";

font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word));

fbo.end();

this->span = 5;

this->number_of_columns = fbo.getWidth() / this->span;

ofPixels pixels;

fbo.readToPixels(pixels);

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

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

this->location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetWidth() * 0.25, 0));

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

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

this->param_list.push_back(1);

}

else {

this->param_list.push_back(0);

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

float threshold = 0.45;

float len_param = 0.005;

float frame_param = -0.02;

for (int z = -150; z <= 150; z += 150) {

auto tmp_location_list = this->location_list;

auto noise_seed = ofRandom(1000);

for (auto& tmp : tmp_location_list) {

tmp += glm::vec3(0, 0, z);

}

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

auto location = tmp_location_list[i];

auto noise_value = ofNoise(noise_seed, location.x * len_param, location.y * len_param + ofGetFrameNum() * frame_param) * this->param_list[i];

if (noise_value < threshold) { continue; }

vector<glm::vec3> vertices;

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

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

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

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

this->face.addVertices(vertices);

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

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 1);

auto tmp_index = i - this->number_of_columns;

if (tmp_index < 0 || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

tmp_index = i + this->number_of_columns;

if (tmp_index > tmp_location_list.size() || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

tmp_index = i + 1;

if (tmp_index % this->number_of_columns == 0 || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

tmp_index = i - 1;

if (i % this->number_of_columns == 0 || ofNoise(noise_seed, tmp_location_list[tmp_index].x * len_param, tmp_location_list[tmp_index].y * len_param + ofGetFrameNum() * frame_param) * this->param_list[tmp_index] < threshold) {

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

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(239);

this->face.draw();

ofSetColor(39);

this->line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210121

2025年7月
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