2023年5月 – ページ 7 – プログラミング de 落描き

2023年5月13日

Orb. Draw by openFrameworks

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[ About ]
オーブ。

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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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	int number_of_targets;
	vector<glm::vec2> target_list;
	vector<glm::vec3> color_list;

	ofShader shader;
};

#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 mouseEntered(int x, int y) {};

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

int number_of_targets;

vector<glm::vec2> target_list;

vector<glm::vec3> color_list;

ofShader shader;

};

#include "ofApp.h"	

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

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

	this->number_of_targets = 360;
	this->shader.load("shader/shader.vert", "shader/shader.frag");
}

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

	ofSeedRandom(39);

	this->target_list.clear();
	this->color_list.clear();


	for (int deg = 15; deg < 360 + 15; deg += 30) {

		for (int i = 0; i < 30; i++) {

			auto radius = ofMap(ofNoise(glm::vec3(cos(deg * DEG_TO_RAD) * 0.75, sin(deg * DEG_TO_RAD) * 0.75, i * 0.018 + ofGetFrameNum() * 0.02)), 0, 1, 80, 320);

			auto target = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			this->target_list.push_back(target + ofGetWindowSize() * 0.5);

			this->color_list.push_back(glm::vec3(1, 1, 1));
		}
	}
}

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

	ofFill();
	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);
	this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

	ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

	this->shader.end();
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(720, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

this->number_of_targets = 360;

this->shader.load("shader/shader.vert", "shader/shader.frag");

}

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

void ofApp::update() {

ofSeedRandom(39);

this->target_list.clear();

this->color_list.clear();

for (int deg = 15; deg < 360 + 15; deg += 30) {

for (int i = 0; i < 30; i++) {

auto radius = ofMap(ofNoise(glm::vec3(cos(deg * DEG_TO_RAD) * 0.75, sin(deg * DEG_TO_RAD) * 0.75, i * 0.018 + ofGetFrameNum() * 0.02)), 0, 1, 80, 320);

auto target = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

this->target_list.push_back(target + ofGetWindowSize() * 0.5);

this->color_list.push_back(glm::vec3(1, 1, 1));

}

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

void ofApp::draw() {

ofFill();

this->shader.begin();

this->shader.setUniform1f("time", ofGetElapsedTimef());

this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());

this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);

this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

this->shader.end();

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(720, 720);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;

void main(){
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

void main(){

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 360;

uniform float time;
uniform vec2 resolution;
uniform vec2 targets[number_of_targets];
uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(0.0);
  for(int i = 0; i < number_of_targets; i++){

    vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;
    t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

    float v = 0.008 / length(p - t);
	float r = v * colors[i].x;
	float g = v * colors[i].y;
	float b = v * colors[i].z;
    vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));
    color += c;
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 360;

uniform float time;

uniform vec2 resolution;

uniform vec2 targets[number_of_targets];

uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

vec3 color = vec3(0.0);

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

vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;

t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

float v = 0.008 / length(p - t);

float r = v * colors[i].x;

float g = v * colors[i].y;

float b = v * colors[i].z;

vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));

color += c;

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20230513

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2023年5月12日

regular tetrahedron. draw by openframeworks

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[ About ]
正四面体。

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetColor(239);
	ofEnableDepthTest();
	//ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

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

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

	for (int param = 50; param <= 350; param += 50) {

		ofMesh mesh;

		int angle_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180);
		auto rotation_x = glm::rotate(glm::mat4(), angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

		int angle_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180);
		auto rotation_y = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

		int angle_z = ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180);
		auto rotation_z = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3(param, param, param));
		vertices.push_back(glm::vec3(param, -param, -param));
		vertices.push_back(glm::vec3(-param, param, -param));
		vertices.push_back(glm::vec3(-param, -param, param));

		for (auto& vertex : vertices) {

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

		mesh.addVertices(vertices);

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

		ofSetLineWidth(ofMap(param, 50, 350, 3, 0.5));

		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(39);

ofSetColor(239);

ofEnableDepthTest();

//ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

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

for (int param = 50; param <= 350; param += 50) {

ofMesh mesh;

int angle_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180);

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

int angle_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180);

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

int angle_z = ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180);

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(param, param, param));

vertices.push_back(glm::vec3(param, -param, -param));

vertices.push_back(glm::vec3(-param, param, -param));

vertices.push_back(glm::vec3(-param, -param, param));

for (auto& vertex : vertices) {

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

}

mesh.addVertices(vertices);

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

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

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

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

ofSetLineWidth(ofMap(param, 50, 350, 3, 0.5));

mesh.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230512

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2023年5月11日

Framed. Draw by openFrameworks

[ Video ]

[ About ]
枠付き。

[ 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) {};

	ofMesh base_mesh;
};

#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) {};

ofMesh base_mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(255);
	ofSetLineWidth(0.5);

	auto ico_sphere = ofIcoSpherePrimitive(300, 2);
	this->base_mesh = ico_sphere.getMesh();
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	ofSetColor(0);
	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 40; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
			vertex.z = 0;

			ofDrawCircle(vertex, 8);
		}
	}

	ofSetColor(255);
	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 40; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
			vertex.z = 0;

			ofDrawCircle(vertex, 5);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(255);

ofSetLineWidth(0.5);

auto ico_sphere = ofIcoSpherePrimitive(300, 2);

this->base_mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSetColor(0);

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 40; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

vertex.z = 0;

ofDrawCircle(vertex, 8);

}

ofSetColor(255);

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 40; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

vertex.z = 0;

ofDrawCircle(vertex, 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230511

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