ofMesh – ページ 69 – プログラミング de 落描き

2022年4月22日2022年4月22日

Galaxy. Draw by openFrameworks

[ Video ]

[ About ]
宇宙みを目指して。

[ 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 mesh;
	vector<float> radius_list;
	vector<float> speed_list;
	vector<float> deg_list;
	vector<float> deg_speed_list;
	vector<ofColor> color_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;

ofMesh mesh;

vector<float> radius_list;

vector<float> speed_list;

vector<float> deg_list;

vector<float> deg_speed_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofEnableDepthTest();

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

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

	this->mesh.clear();

	ofColor color;
	for (int i = 0; i < 5; i++) {

		this->radius_list.push_back(100);
		this->speed_list.push_back(ofRandom(0.5, 1.5));
		this->deg_list.push_back(ofRandom(360));
		this->deg_speed_list.push_back(ofRandom(1, 2));
		color.setHsb(ofRandom(255), 130, 255);
		this->color_list.push_back(color);
	}

	for (int i = this->radius_list.size() - 1; i >= 0; i--) {

		this->radius_list[i] += this->speed_list[i];
		this->deg_list[i] += this->deg_speed_list[i];

		this->mesh.addVertex(glm::vec3(this->radius_list[i] * cos(this->deg_list[i] * DEG_TO_RAD), this->radius_list[i] * sin(this->deg_list[i] * DEG_TO_RAD), 0));
		this->mesh.addColor(this->color_list[i]);

		if (this->radius_list[i] > 450) {

			this->radius_list.erase(this->radius_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->deg_list.erase(this->deg_list.begin() + i);
			this->deg_speed_list.erase(this->deg_speed_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		for (int k = i + 1; k < this->mesh.getNumVertices(); k++) {

			auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));
			if (distance < 13) {

				this->mesh.addIndex(i); this->mesh.addIndex(k);
			}

			auto alpha = distance < 10 ? 255 : ofMap(distance, 10, 13, 255, 0);
			if (this->mesh.getColor(i).a < alpha) {

				this->mesh.setColor(i, ofColor(this->mesh.getColor(i), alpha));
			}

			if (this->mesh.getColor(k).a < alpha) {

				this->mesh.setColor(k, ofColor(this->mesh.getColor(k), alpha));
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(0);
	ofDrawSphere(glm::vec3(), 100);

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {
		
		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 1);
	}

	this->mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->mesh.clear();

ofColor color;

for (int i = 0; i < 5; i++) {

this->radius_list.push_back(100);

this->speed_list.push_back(ofRandom(0.5, 1.5));

this->deg_list.push_back(ofRandom(360));

this->deg_speed_list.push_back(ofRandom(1, 2));

color.setHsb(ofRandom(255), 130, 255);

this->color_list.push_back(color);

}

for (int i = this->radius_list.size() - 1; i >= 0; i--) {

this->radius_list[i] += this->speed_list[i];

this->deg_list[i] += this->deg_speed_list[i];

this->mesh.addVertex(glm::vec3(this->radius_list[i] * cos(this->deg_list[i] * DEG_TO_RAD), this->radius_list[i] * sin(this->deg_list[i] * DEG_TO_RAD), 0));

this->mesh.addColor(this->color_list[i]);

if (this->radius_list[i] > 450) {

this->radius_list.erase(this->radius_list.begin() + i);

this->speed_list.erase(this->speed_list.begin() + i);

this->deg_list.erase(this->deg_list.begin() + i);

this->deg_speed_list.erase(this->deg_speed_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

}

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

for (int k = i + 1; k < this->mesh.getNumVertices(); k++) {

auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));

if (distance < 13) {

this->mesh.addIndex(i); this->mesh.addIndex(k);

}

auto alpha = distance < 10 ? 255 : ofMap(distance, 10, 13, 255, 0);

if (this->mesh.getColor(i).a < alpha) {

this->mesh.setColor(i, ofColor(this->mesh.getColor(i), alpha));

}

if (this->mesh.getColor(k).a < alpha) {

this->mesh.setColor(k, ofColor(this->mesh.getColor(k), alpha));

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(0);

ofDrawSphere(glm::vec3(), 100);

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 1);

}

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220422

2022年4月20日

Video fragmentation. Draw by openFrameworks

[ Video ]

[ About ]
動画の断片化。

Video fragmentation.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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;

	cv::VideoCapture cap;
	cv::Size cap_size;

	ofImage image;
	cv::Mat frame;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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;

cv::VideoCapture cap;

cv::Size cap_size;

ofImage image;

cv::Mat frame;

};

#include "ofApp.h"

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

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

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

	this->cap.open("D:\\MP4\\MOV_1030.mp4");
	this->cap_size = cv::Size(1280, 720);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);
}

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

	ofSeedRandom(39);

	cv::Mat src;
	this->cap >> src;
	if (src.empty()) {

		this->cap.set(cv::CAP_PROP_POS_FRAMES, 0);
		return;
	}

	cv::cvtColor(src, src, cv::COLOR_BGR2RGB);
	cv::resize(src, this->frame, this->cap_size);
	cv::flip(this->frame, this->frame, 0);

	this->image.update();
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum());
	ofTranslate(-640, -360);

	int span = 40;

	vector<ofMesh> mesh_list;
	for (int x = 0; x < 1280; x += span) {

		for (int y = 0; y < 720; y += span) {

			ofMesh mesh;

			mesh.addVertex(glm::vec3(x, y, 0));
			mesh.addVertex(glm::vec3(x + span, y, 0));
			mesh.addVertex(glm::vec3(x + span, y + span, 0));
			mesh.addVertex(glm::vec3(x, y + span, 0));

			mesh.addTexCoord(glm::vec3(x, y, 0));
			mesh.addTexCoord(glm::vec3(x + span, y, 0));
			mesh.addTexCoord(glm::vec3(x + span, y + span, 0));
			mesh.addTexCoord(glm::vec3(x, y + span, 0));

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

			mesh_list.push_back(mesh);
		}
	}

	for (auto& mesh : mesh_list) {

		auto rotate = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));
		auto speed = glm::vec3(ofRandom(5, 10), ofRandom(5, 10), ofRandom(5, 10));

		auto center = glm::vec3(mesh.getVertex(0).x + span * 0.5, mesh.getVertex(0).y + span * 0.5, 0);
		auto tmp_center = center;

		mesh.setVertex(0, mesh.getVertex(0) - center);
		mesh.setVertex(1, mesh.getVertex(1) - center);
		mesh.setVertex(2, mesh.getVertex(2) - center);
		mesh.setVertex(3, mesh.getVertex(3) - center);

		auto noise_value = ofNoise(glm::vec4(center * 0.001, ofGetFrameNum() * 0.005));
		if (noise_value < 0.48) {

			tmp_center += glm::vec3(0, 0, -250);
			rotate = glm::vec3();
		}
		else if (noise_value < 0.52) {

			tmp_center += glm::vec3(0, 0, ofMap(noise_value, 0.48, 0.52, -250, 250));
			rotate.x += ofGetFrameNum() * speed.x;
			rotate.y += ofGetFrameNum() * speed.y;
			rotate.z += ofGetFrameNum() * speed.z;
		}
		else {

			tmp_center += glm::vec3(0, 0, 250);
			rotate = glm::vec3();
		}

		ofPushMatrix();
		ofTranslate(tmp_center);
		ofRotateZ(rotate.z);
		ofRotateY(rotate.y);
		ofRotateX(rotate.x);

		ofSetColor(255);
		this->image.bind();
		mesh.draw();
		this->image.unbind();

		ofMesh line;
		line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		if (noise_value > 0.48 && noise_value < 0.52) {

			line.addVertex(mesh.getVertex(0));
			line.addVertex(mesh.getVertex(1));
			line.addVertex(mesh.getVertex(2));
			line.addVertex(mesh.getVertex(3));

			line.addIndex(0); line.addIndex(1);
			line.addIndex(1); line.addIndex(2);
			line.addIndex(2); line.addIndex(3);
			line.addIndex(3); line.addIndex(0);
		}
		else {

			auto top_noise_value = ofNoise(glm::vec4((center + glm::vec3(0, span, 0)) * 0.001, ofGetFrameNum() * 0.005));
			if ((top_noise_value > 0.48 && top_noise_value < 0.52 || center.y >= 720 - span * 0.5) ) {

				line.addVertex(mesh.getVertex(2));
				line.addVertex(mesh.getVertex(3));

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

			auto bottom_noise_value = ofNoise(glm::vec4((center - glm::vec3(0, span, 0)) * 0.001, ofGetFrameNum() * 0.005));
			if (bottom_noise_value > 0.48 && bottom_noise_value < 0.52 || center.y <= span * 0.5) {

				line.addVertex(mesh.getVertex(0));
				line.addVertex(mesh.getVertex(1));

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

			auto right_noise_value = ofNoise(glm::vec4((center + glm::vec3(span, 0, 0)) * 0.001, ofGetFrameNum() * 0.005));
			if (right_noise_value > 0.48 && right_noise_value < 0.52 || center.x >= 1280 - span * 0.5) {

				line.addVertex(mesh.getVertex(1));
				line.addVertex(mesh.getVertex(2));

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

			auto left_noise_value = ofNoise(glm::vec4((center -	glm::vec3(span, 0, 0)) * 0.001, ofGetFrameNum() * 0.005));
			if (left_noise_value > 0.48 && left_noise_value < 0.52 || center.x <= span * 0.5) {

				line.addVertex(mesh.getVertex(3));
				line.addVertex(mesh.getVertex(0));

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

		line.drawWireframe();
		

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

ofEnableDepthTest();

this->cap.open("D:\\MP4\\MOV_1030.mp4");

this->cap_size = cv::Size(1280, 720);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

}

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

void ofApp::update() {

ofSeedRandom(39);

cv::Mat src;

this->cap >> src;

if (src.empty()) {

this->cap.set(cv::CAP_PROP_POS_FRAMES, 0);

return;

}

cv::cvtColor(src, src, cv::COLOR_BGR2RGB);

cv::resize(src, this->frame, this->cap_size);

cv::flip(this->frame, this->frame, 0);

this->image.update();

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

ofTranslate(-640, -360);

int span = 40;

vector<ofMesh> mesh_list;

for (int x = 0; x < 1280; x += span) {

for (int y = 0; y < 720; y += span) {

ofMesh mesh;

mesh.addVertex(glm::vec3(x, y, 0));

mesh.addVertex(glm::vec3(x + span, y, 0));

mesh.addVertex(glm::vec3(x + span, y + span, 0));

mesh.addVertex(glm::vec3(x, y + span, 0));

mesh.addTexCoord(glm::vec3(x, y, 0));

mesh.addTexCoord(glm::vec3(x + span, y, 0));

mesh.addTexCoord(glm::vec3(x + span, y + span, 0));

mesh.addTexCoord(glm::vec3(x, y + span, 0));

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

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

mesh_list.push_back(mesh);

}

for (auto& mesh : mesh_list) {

auto rotate = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

auto speed = glm::vec3(ofRandom(5, 10), ofRandom(5, 10), ofRandom(5, 10));

auto center = glm::vec3(mesh.getVertex(0).x + span * 0.5, mesh.getVertex(0).y + span * 0.5, 0);

auto tmp_center = center;

mesh.setVertex(0, mesh.getVertex(0) - center);

mesh.setVertex(1, mesh.getVertex(1) - center);

mesh.setVertex(2, mesh.getVertex(2) - center);

mesh.setVertex(3, mesh.getVertex(3) - center);

auto noise_value = ofNoise(glm::vec4(center * 0.001, ofGetFrameNum() * 0.005));

if (noise_value < 0.48) {

tmp_center += glm::vec3(0, 0, -250);

rotate = glm::vec3();

}

else if (noise_value < 0.52) {

tmp_center += glm::vec3(0, 0, ofMap(noise_value, 0.48, 0.52, -250, 250));

rotate.x += ofGetFrameNum() * speed.x;

rotate.y += ofGetFrameNum() * speed.y;

rotate.z += ofGetFrameNum() * speed.z;

}

else {

tmp_center += glm::vec3(0, 0, 250);

rotate = glm::vec3();

}

ofPushMatrix();

ofTranslate(tmp_center);

ofRotateZ(rotate.z);

ofRotateY(rotate.y);

ofRotateX(rotate.x);

ofSetColor(255);

this->image.bind();

mesh.draw();

this->image.unbind();

ofMesh line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

if (noise_value > 0.48 && noise_value < 0.52) {

line.addVertex(mesh.getVertex(0));

line.addVertex(mesh.getVertex(1));

line.addVertex(mesh.getVertex(2));

line.addVertex(mesh.getVertex(3));

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

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

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

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

}

else {

auto top_noise_value = ofNoise(glm::vec4((center + glm::vec3(0, span, 0)) * 0.001, ofGetFrameNum() * 0.005));

if ((top_noise_value > 0.48 && top_noise_value < 0.52 || center.y >= 720 - span * 0.5) ) {

line.addVertex(mesh.getVertex(2));

line.addVertex(mesh.getVertex(3));

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

}

auto bottom_noise_value = ofNoise(glm::vec4((center - glm::vec3(0, span, 0)) * 0.001, ofGetFrameNum() * 0.005));

if (bottom_noise_value > 0.48 && bottom_noise_value < 0.52 || center.y <= span * 0.5) {

line.addVertex(mesh.getVertex(0));

line.addVertex(mesh.getVertex(1));

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

}

auto right_noise_value = ofNoise(glm::vec4((center + glm::vec3(span, 0, 0)) * 0.001, ofGetFrameNum() * 0.005));

if (right_noise_value > 0.48 && right_noise_value < 0.52 || center.x >= 1280 - span * 0.5) {

line.addVertex(mesh.getVertex(1));

line.addVertex(mesh.getVertex(2));

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

}

auto left_noise_value = ofNoise(glm::vec4((center - glm::vec3(span, 0, 0)) * 0.001, ofGetFrameNum() * 0.005));

if (left_noise_value > 0.48 && left_noise_value < 0.52 || center.x <= span * 0.5) {

line.addVertex(mesh.getVertex(3));

line.addVertex(mesh.getVertex(0));

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

}

line.drawWireframe();

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220420

2022年4月19日2022年4月19日

Chipped plate. Draw by openFrameworks

[ Video ]

[ About ]
少し崩壊する感じ。

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

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

	ofEasyCam cam;
	ofMesh face, line;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh face, line;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofEnableDepthTest();
	ofSetLineWidth(3);

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

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

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

	float span = 10;
	float threshold = 0.45;
	float noise_param = 0.01;

	for (float x = -200; x <= 200; x += span) {

		for (float y = -200; y <= 200; y += span) {

			for (float z = -200; z <= 0; z += span) {

				auto noise_value = ofNoise(x * noise_param, y * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);

				if (noise_value < threshold) { continue; }

				auto noise_value_1 = ofNoise((x - span) * noise_param, y * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);
				auto noise_value_2 = ofNoise(x * noise_param, (y + span) * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);
				auto noise_value_3 = ofNoise((x + span) * noise_param, y * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);
				auto noise_value_4 = ofNoise(x * noise_param, (y - span) * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);


				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_value_1 < threshold || x == -200) {

					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_value_2 < threshold || y == 200) {

					this->line.addVertex(vertices[1]); this->line.addVertex(vertices[2]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_value_3 < threshold || x == 200) {

					this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_value_4 < threshold || y == -200) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(255);
	this->face.draw();

	ofSetColor(0);
	this->line.draw();

	this->cam.end();
}

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofEnableDepthTest();

ofSetLineWidth(3);

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float span = 10;

float threshold = 0.45;

float noise_param = 0.01;

for (float x = -200; x <= 200; x += span) {

for (float y = -200; y <= 200; y += span) {

for (float z = -200; z <= 0; z += span) {

auto noise_value = ofNoise(x * noise_param, y * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);

if (noise_value < threshold) { continue; }

auto noise_value_1 = ofNoise((x - span) * noise_param, y * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);

auto noise_value_2 = ofNoise(x * noise_param, (y + span) * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);

auto noise_value_3 = ofNoise((x + span) * noise_param, y * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);

auto noise_value_4 = ofNoise(x * noise_param, (y - span) * noise_param, z * noise_param * 0.05 + ofGetFrameNum() * 0.01);

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_value_1 < threshold || x == -200) {

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_value_2 < threshold || y == 200) {

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

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

}

if (noise_value_3 < threshold || x == 200) {

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

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

}

if (noise_value_4 < threshold || y == -200) {

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(255);

this->face.draw();

ofSetColor(0);

this->line.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220419

2025年7月
月	火	水	木	金	土	日
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30	31