2023年4月8日 – プログラミング de 落描き

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球体層。

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#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(239);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);

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

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

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

	float phi_deg_step = 5;
	float theta_deg_step = 5;
	float noise_radius = 300;
	float threshold = 0.58;

	for (float radius = 150; radius <= 250; radius += 5) {

		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(
					noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005,
					ofGetFrameNum() * 0.01);

				if (noise_value < threshold) { continue; }

				auto noise_value_1 = ofNoise(
					noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.005,
					ofGetFrameNum() * 0.01);
				auto noise_value_2 = ofNoise(
					noise_radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005,
					ofGetFrameNum() * 0.01);
				auto noise_value_3 = ofNoise(
					noise_radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005,
					ofGetFrameNum() * 0.01);
				auto noise_value_4 = ofNoise(
					noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.005,
					ofGetFrameNum() * 0.01);

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

				auto noise_deg_z = ofMap(ofNoise(radius * 0.001 + ofGetFrameNum() * 0.005), 0, 1, -720, 720);
				auto noise_deg_x = ofMap(ofNoise(radius * 0.001 + ofGetFrameNum() * 0.01), 0, 1, -90, 90);
				auto rotation_z = glm::rotate(glm::mat4(), (float)(noise_deg_z * DEG_TO_RAD), glm::vec3(0, 0, 1));
				auto rotation_x = glm::rotate(glm::mat4(), (float)(noise_deg_x * DEG_TO_RAD), glm::vec3(1, 0, 0));

				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 (auto& vertex : vertices) {

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

				this->face.addVertices(vertices);

				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);

				ofColor color = ofColor(0, ofMap(radius, 150, 250, 0, 255));
				this->face.addColor(color);
				this->face.addColor(color);
				this->face.addColor(color);
				this->face.addColor(color);

				color = ofColor(255, ofMap(radius, 150, 250, 0, 255));

				if (noise_value_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);

					this->line.addColor(color); this->line.addColor(color);
				}

				if (noise_value_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);

					this->line.addColor(color); this->line.addColor(color);
				}

				if (noise_value_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);

					this->line.addColor(color); this->line.addColor(color);
				}

				if (noise_value_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);

					this->line.addColor(color); this->line.addColor(color);
				}
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);
	//ofRotateZ(ofGetFrameNum() * 0.66666666666666);

	this->face.draw();
	this->line.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(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

ofSetLineWidth(1.5);

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float phi_deg_step = 5;

float theta_deg_step = 5;

float noise_radius = 300;

float threshold = 0.58;

for (float radius = 150; radius <= 250; radius += 5) {

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(

noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005,

ofGetFrameNum() * 0.01);

if (noise_value < threshold) { continue; }

auto noise_value_1 = ofNoise(

noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.005,

ofGetFrameNum() * 0.01);

auto noise_value_2 = ofNoise(

noise_radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005,

ofGetFrameNum() * 0.01);

auto noise_value_3 = ofNoise(

noise_radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005,

ofGetFrameNum() * 0.01);

auto noise_value_4 = ofNoise(

noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.005,

ofGetFrameNum() * 0.01);

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

vector<glm::vec3> vertices;

auto noise_deg_z = ofMap(ofNoise(radius * 0.001 + ofGetFrameNum() * 0.005), 0, 1, -720, 720);

auto noise_deg_x = ofMap(ofNoise(radius * 0.001 + ofGetFrameNum() * 0.01), 0, 1, -90, 90);

auto rotation_z = glm::rotate(glm::mat4(), (float)(noise_deg_z * DEG_TO_RAD), glm::vec3(0, 0, 1));

auto rotation_x = glm::rotate(glm::mat4(), (float)(noise_deg_x * DEG_TO_RAD), glm::vec3(1, 0, 0));

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 (auto& vertex : vertices) {

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

}

this->face.addVertices(vertices);

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);

ofColor color = ofColor(0, ofMap(radius, 150, 250, 0, 255));

this->face.addColor(color);

color = ofColor(255, ofMap(radius, 150, 250, 0, 255));

if (noise_value_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);

this->line.addColor(color); this->line.addColor(color);

}

if (noise_value_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);

this->line.addColor(color); this->line.addColor(color);

}

if (noise_value_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);

this->line.addColor(color); this->line.addColor(color);

}

if (noise_value_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);

this->line.addColor(color); this->line.addColor(color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

//ofRotateZ(ofGetFrameNum() * 0.66666666666666);

this->face.draw();

this->line.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230408

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日: 2023年4月8日

Sphere layer. Draw by openFrameworks

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