sphere – ページ 41 – プログラミング de 落描き

2020年5月25日2020年5月25日

Bands of noise that change in turn. Draw by openFrameworks

[ Video ]

[ About ]
Bands of noise that change in turn.

[ 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, frame;
	int number_of_belts;
	vector<float> noise_seed_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 face, frame;

int number_of_belts;

vector<float> noise_seed_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);

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

	this->number_of_belts = 2;
	for (int i = 0; i < this->number_of_belts; i++) {

		this->noise_seed_list.push_back(ofRandom(1000));
	}
}

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

	ofSeedRandom(39);

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

	for (int i = 0; i < this->number_of_belts; i++) {

		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		for(int k = 0; k < 700; k++){

			int deg = ofRandom(360);

			auto angle_x = ofMap(ofNoise(noise_seed.x, cos(deg * DEG_TO_RAD) * 0.2, this->noise_seed_list[i]), 0, 1, -PI, PI);
			auto angle_y = ofMap(ofNoise(noise_seed.y, sin(deg * DEG_TO_RAD) * 0.2, this->noise_seed_list[i]), 0, 1, -PI, PI);
			auto angle_z = ofMap(ofNoise(noise_seed.z, this->noise_seed_list[i]), 0, 1, -PI, PI);

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

			auto location = glm::vec3(280 * cos(deg * DEG_TO_RAD), 280 * sin(deg * DEG_TO_RAD), ofRandom(-50, 50));
			location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x;

			this->face.addVertex(location);
			this->frame.addVertex(location);

			this->face.addColor(ofColor(39, 32));
			this->frame.addColor(ofColor(39));
		}
	}

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

		vector<int> near_index_list;
		auto location = this->face.getVertex(i);
		for (int k = 0; k < this->face.getNumVertices(); k++) {

			auto other = this->face.getVertex(k);
			auto distance = glm::distance(location, other);

			if (distance < 30) {

				near_index_list.push_back(k);
			}
		}

		if (near_index_list.size() > 3) {

			for (int k = 0; k < near_index_list.size() - 2; k++) {

				this->face.addIndex(i);
				this->face.addIndex(near_index_list[k]);
				this->face.addIndex(near_index_list[k + 1]);

				this->frame.addIndex(i); this->frame.addIndex(near_index_list[k]);
				this->frame.addIndex(i); this->frame.addIndex(near_index_list[k + 1]);
			}
		}
	}

	auto frame = 60;
	auto param = ofGetFrameNum() % (frame * this->number_of_belts);
	auto index = param / frame;

	for (int i = 0; i < this->number_of_belts; i++) {
	
		if (i == index) {
			
			auto f = ofGetFrameNum() % frame;
			if (f > frame * 0.5) {

				this->noise_seed_list[index] += ofMap(f, frame * 0.5, frame, 0.03, 0.0005);
			}
			else {

				this->noise_seed_list[index] += ofMap(f, 0, frame * 0.5, 0.0005, 0.03);
			}
		}
		else {

			this->noise_seed_list[i] += 0.0005;
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);
	ofRotateX(ofGetFrameNum() * 0.75);

	this->face.draw();
	this->frame.drawWireframe();

	for (auto& vertex : this->face.getVertices()) {

		ofDrawSphere(vertex, 3);
	}

	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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

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

this->number_of_belts = 2;

for (int i = 0; i < this->number_of_belts; i++) {

this->noise_seed_list.push_back(ofRandom(1000));

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int i = 0; i < this->number_of_belts; i++) {

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

for(int k = 0; k < 700; k++){

int deg = ofRandom(360);

auto angle_x = ofMap(ofNoise(noise_seed.x, cos(deg * DEG_TO_RAD) * 0.2, this->noise_seed_list[i]), 0, 1, -PI, PI);

auto angle_y = ofMap(ofNoise(noise_seed.y, sin(deg * DEG_TO_RAD) * 0.2, this->noise_seed_list[i]), 0, 1, -PI, PI);

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

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

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

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

auto location = glm::vec3(280 * cos(deg * DEG_TO_RAD), 280 * sin(deg * DEG_TO_RAD), ofRandom(-50, 50));

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

this->face.addVertex(location);

this->frame.addVertex(location);

this->face.addColor(ofColor(39, 32));

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

}

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

vector<int> near_index_list;

auto location = this->face.getVertex(i);

for (int k = 0; k < this->face.getNumVertices(); k++) {

auto other = this->face.getVertex(k);

auto distance = glm::distance(location, other);

if (distance < 30) {

near_index_list.push_back(k);

}

if (near_index_list.size() > 3) {

for (int k = 0; k < near_index_list.size() - 2; k++) {

this->face.addIndex(i);

this->face.addIndex(near_index_list[k]);

this->face.addIndex(near_index_list[k + 1]);

this->frame.addIndex(i); this->frame.addIndex(near_index_list[k]);

this->frame.addIndex(i); this->frame.addIndex(near_index_list[k + 1]);

}

auto frame = 60;

auto param = ofGetFrameNum() % (frame * this->number_of_belts);

auto index = param / frame;

for (int i = 0; i < this->number_of_belts; i++) {

if (i == index) {

auto f = ofGetFrameNum() % frame;

if (f > frame * 0.5) {

this->noise_seed_list[index] += ofMap(f, frame * 0.5, frame, 0.03, 0.0005);

}

else {

this->noise_seed_list[index] += ofMap(f, 0, frame * 0.5, 0.0005, 0.03);

}

else {

this->noise_seed_list[i] += 0.0005;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofRotateX(ofGetFrameNum() * 0.75);

this->face.draw();

this->frame.drawWireframe();

for (auto& vertex : this->face.getVertices()) {

ofDrawSphere(vertex, 3);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200525

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年5月23日

Shards popping out. Draw by openFrameworks

[ Video ]

[ About ]
Shards popping out.

[ 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;
	ofIcoSpherePrimitive ico_sphere;
	ofMesh mesh, frame;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofIcoSpherePrimitive ico_sphere;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->ico_sphere = ofIcoSpherePrimitive(65, 2);
	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

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

	int radius_start = 65;
	int radius_max = 180;
	for (auto& triangle : this->ico_sphere.getMesh().getUniqueFaces()) {

		auto noise_seed_x = ofRandom(1000);
		auto noise_seed_y = ofRandom(1000);
		auto noise_seed_z = ofRandom(1000);

		auto noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005);
		int radius_end = noise_value > 0.8 ? ofMap(noise_value, 0.8, 1, radius_start, radius_max) : radius_start;
		this->frame.addVertex(glm::vec3());
		for (int radius = radius_start; radius <= radius_end; radius += 1) {

			auto mesh_index = this->mesh.getNumVertices();
			auto frame_index = this->frame.getNumVertices();

			auto param = ofMap(radius, radius_start, radius_max, 0, PI * 0.25);

			auto angle_x = ofMap(ofNoise(noise_seed_x, radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -param, param);
			auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
			auto angle_y = ofMap(ofNoise(noise_seed_y, radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -param, param);
			auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
			auto angle_z = ofMap(ofNoise(noise_seed_z, radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -param, param);
			auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

			glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
			glm::vec3 loc = glm::normalize(avg) * radius;

			if (radius == radius_end) {

				this->mesh.addVertex(glm::vec4(loc + triangle.getVertex(0) - avg, 0) * rotation_z * rotation_y * rotation_x);
				this->mesh.addVertex(glm::vec4(loc + triangle.getVertex(1) - avg, 0) * rotation_z * rotation_y * rotation_x);
				this->mesh.addVertex(glm::vec4(loc + triangle.getVertex(2) - avg, 0) * rotation_z * rotation_y * rotation_x);

				this->mesh.addIndex(mesh_index + 0); this->mesh.addIndex(mesh_index + 1); this->mesh.addIndex(mesh_index + 2);
			}

			this->frame.addVertex(glm::vec4(loc, 0) * rotation_z * rotation_y * rotation_x);
			this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index - 1);
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.75);

	ofSetColor(39);
	this->frame.drawWireframe();
	this->mesh.drawWireframe();

	ofSetColor(239);
	this->mesh.draw();
	
	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

this->ico_sphere = ofIcoSpherePrimitive(65, 2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

int radius_start = 65;

int radius_max = 180;

for (auto& triangle : this->ico_sphere.getMesh().getUniqueFaces()) {

auto noise_seed_x = ofRandom(1000);

auto noise_seed_y = ofRandom(1000);

auto noise_seed_z = ofRandom(1000);

auto noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005);

int radius_end = noise_value > 0.8 ? ofMap(noise_value, 0.8, 1, radius_start, radius_max) : radius_start;

this->frame.addVertex(glm::vec3());

for (int radius = radius_start; radius <= radius_end; radius += 1) {

auto mesh_index = this->mesh.getNumVertices();

auto frame_index = this->frame.getNumVertices();

auto param = ofMap(radius, radius_start, radius_max, 0, PI * 0.25);

auto angle_x = ofMap(ofNoise(noise_seed_x, radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -param, param);

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

auto angle_y = ofMap(ofNoise(noise_seed_y, radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -param, param);

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

auto angle_z = ofMap(ofNoise(noise_seed_z, radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -param, param);

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

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

glm::vec3 loc = glm::normalize(avg) * radius;

if (radius == radius_end) {

this->mesh.addVertex(glm::vec4(loc + triangle.getVertex(0) - avg, 0) * rotation_z * rotation_y * rotation_x);

this->mesh.addVertex(glm::vec4(loc + triangle.getVertex(1) - avg, 0) * rotation_z * rotation_y * rotation_x);

this->mesh.addVertex(glm::vec4(loc + triangle.getVertex(2) - avg, 0) * rotation_z * rotation_y * rotation_x);

this->mesh.addIndex(mesh_index + 0); this->mesh.addIndex(mesh_index + 1); this->mesh.addIndex(mesh_index + 2);

}

this->frame.addVertex(glm::vec4(loc, 0) * rotation_z * rotation_y * rotation_x);

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index - 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.75);

ofSetColor(39);

this->frame.drawWireframe();

this->mesh.drawWireframe();

ofSetColor(239);

this->mesh.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200523

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年5月19日2020年5月19日

Move by music. Draw by openFrameworks

[ Video ]

[ About ]
Music is analyzed and quantified. This is reflected in the amount of change in the arguments of the noise method.

[ 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) {};

	ofSoundPlayer sound;
	vector<float> fft_value;
	vector<float> fft_smoothed;
	int n_bands_to_get;

	ofEasyCam cam;
	ofIcoSpherePrimitive ico_sphere;
	ofMesh mesh, frame;
	vector<float> noise_seed_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) {};

ofSoundPlayer sound;

vector<float> fft_value;

vector<float> fft_smoothed;

int n_bands_to_get;

ofEasyCam cam;

ofIcoSpherePrimitive ico_sphere;

ofMesh mesh, frame;

vector<float> noise_seed_list;

};

#include "ofApp.h"

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

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

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

	this->sound.load("sound/This_is_Not_Jazz.mp3"); // From https://www.youtube.com/audiolibrary/
	this->sound.play();

	this->n_bands_to_get = 128;
	for (int j = 0; j < this->n_bands_to_get; j++) {

		this->fft_value.push_back(0.f);
		this->fft_smoothed.push_back(0.f);
	}

	this->ico_sphere = ofIcoSpherePrimitive(65, 2);
	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	for (int i = 0; i < 9; i++) {

		this->noise_seed_list.push_back(ofRandom(1000));
	}
}

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


	ofSoundUpdate();

	float* val = ofSoundGetSpectrum(this->n_bands_to_get);
	for (int i = 0; i < this->n_bands_to_get; i++) {

		this->fft_value[i] = val[i];

		this->fft_smoothed[i] *= 0.98f;
		if (this->fft_smoothed[i] < val[i]) {

			this->fft_smoothed[i] = val[i];
		}
	}

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

	auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();
	auto index = 0;
	for (int x = -200; x <= 200; x += 200) {

		for (int y = -200; y <= 200; y += 200) {

			glm::vec3 location = glm::vec3(x, y, 0);
			for (auto& triangle : triangle_list) {

				auto mesh_index = this->mesh.getNumVertices();
				auto frame_index = this->frame.getNumVertices();
				glm::vec3 avg = location + (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
				auto noise_value = ofNoise(glm::vec4(avg * 0.015, this->noise_seed_list[index]));
				auto noise_radius = 0;

				if (noise_value < 0.75) {

					noise_radius = 65;
				}
				else {

					noise_radius = ofMap(noise_value, 0.75, 1.0, 65, 120);
				}

				this->mesh.addVertex(location + glm::normalize(triangle.getVertex(0)) * noise_radius);
				this->mesh.addVertex(location + glm::normalize(triangle.getVertex(1)) * noise_radius);
				this->mesh.addVertex(location + glm::normalize(triangle.getVertex(2)) * noise_radius);

				this->mesh.addIndex(mesh_index + 0); this->mesh.addIndex(mesh_index + 1); this->mesh.addIndex(mesh_index + 2);

				avg = (this->mesh.getVertex(mesh_index + 0) + this->mesh.getVertex(mesh_index + 1) + this->mesh.getVertex(mesh_index + 2)) / 3;

				this->frame.addVertex(avg);
				this->frame.addVertex(location);

				this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);
			}

			this->noise_seed_list[index] += ofMap(this->fft_value[index], 0, 1, 0, 0.25);
			index++;
		}
	}
}

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

	this->cam.begin();

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

	ofSetColor(39);
	this->mesh.drawWireframe();
	this->frame.drawWireframe();

	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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

this->sound.load("sound/This_is_Not_Jazz.mp3"); // From https://www.youtube.com/audiolibrary/

this->sound.play();

this->n_bands_to_get = 128;

for (int j = 0; j < this->n_bands_to_get; j++) {

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

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

}

this->ico_sphere = ofIcoSpherePrimitive(65, 2);

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

for (int i = 0; i < 9; i++) {

this->noise_seed_list.push_back(ofRandom(1000));

}

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

void ofApp::update() {

ofSoundUpdate();

float* val = ofSoundGetSpectrum(this->n_bands_to_get);

for (int i = 0; i < this->n_bands_to_get; i++) {

this->fft_value[i] = val[i];

this->fft_smoothed[i] *= 0.98f;

if (this->fft_smoothed[i] < val[i]) {

this->fft_smoothed[i] = val[i];

}

this->mesh.clear();

this->frame.clear();

auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

auto index = 0;

for (int x = -200; x <= 200; x += 200) {

for (int y = -200; y <= 200; y += 200) {

glm::vec3 location = glm::vec3(x, y, 0);

for (auto& triangle : triangle_list) {

auto mesh_index = this->mesh.getNumVertices();

auto frame_index = this->frame.getNumVertices();

glm::vec3 avg = location + (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto noise_value = ofNoise(glm::vec4(avg * 0.015, this->noise_seed_list[index]));

auto noise_radius = 0;

if (noise_value < 0.75) {

noise_radius = 65;

}

else {

noise_radius = ofMap(noise_value, 0.75, 1.0, 65, 120);

}

this->mesh.addVertex(location + glm::normalize(triangle.getVertex(0)) * noise_radius);

this->mesh.addVertex(location + glm::normalize(triangle.getVertex(1)) * noise_radius);

this->mesh.addVertex(location + glm::normalize(triangle.getVertex(2)) * noise_radius);

this->mesh.addIndex(mesh_index + 0); this->mesh.addIndex(mesh_index + 1); this->mesh.addIndex(mesh_index + 2);

avg = (this->mesh.getVertex(mesh_index + 0) + this->mesh.getVertex(mesh_index + 1) + this->mesh.getVertex(mesh_index + 2)) / 3;

this->frame.addVertex(avg);

this->frame.addVertex(location);

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);

}

this->noise_seed_list[index] += ofMap(this->fft_value[index], 0, 1, 0, 0.25);

index++;

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(239);

this->mesh.draw();

ofSetColor(39);

this->mesh.drawWireframe();

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200519

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年5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