openFrameworks – ページ 886 – プログラミング de 落描き

2018年1月31日2018年1月30日

ofTrueTypeFontからPath情報を取得してバラバラにする openFrameworks

[ Video ]

[ About ]
ofTrueTypeFontからPath情報を取得、分解しました。ofPathからmeshは取得出来たのですが、メッシュの大きさが大小バラバラだったので、ResampleしてそれをofTessellatorというクラスを使って作り直すという変？な事をしています。

それっぽいMesh情報が取れた後は、さらにMeshの中にあるFaceを一つづつ取り出して、Noiseと掛け合わせています。

文字は、MonsterHunterが発売され、Hunter×Hunberが連載再開という事で、熱いキーワード「HUNTER」にしてみました。

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofFbo.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;

	ofTrueTypeFont font;
	string words;
	ofPoint words_size;
	vector<ofTTFCharacter> paths;
};

#pragma once

#include "ofMain.h"

#include "ofFbo.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;

ofTrueTypeFont font;

string words;

ofPoint words_size;

vector<ofTTFCharacter> paths;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

	ofSetColor(0, 32, 255);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, false, true);
	this->words = "OTHER";
	this->words_size = ofPoint(this->font.stringWidth(this->words), this->font.stringHeight(this->words));
	this->paths = this->font.getStringAsPoints(this->words);
}

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

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

	this->cam.begin();
	ofRotateX(180);

	for (int p_index = 0; p_index < this->paths.size(); p_index++) {

		vector<ofPolyline> outline = this->paths[p_index].getOutline();
		
		for (int o_index = 0; o_index < outline.size(); o_index++) {

			outline[o_index] = outline[o_index].getResampledBySpacing(30);
			ofMesh mesh;
			ofTessellator t;
			t.tessellateToMesh(outline, ofPolyWindingMode::OF_POLY_WINDING_ODD, mesh);

			vector<ofMeshFace> triangles = mesh.getUniqueFaces();
			for (int i = 0; i < triangles.size(); i++) {

				ofPoint avg = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;
				float noise_value = ofNoise(avg.x * 0.005 - ofGetFrameNum() * 0.05);

				ofMesh draw_mesh;
				ofPoint adjust(-this->words_size.x / 2, this->words_size.y / 2);

				if (noise_value < 0.4){

					adjust += ofPoint(0, 0, 500 * (noise_value - 0.4));
				}
				
				draw_mesh.addVertex(triangles[i].getVertex(0) + adjust);
				draw_mesh.addVertex(triangles[i].getVertex(1) + adjust);
				draw_mesh.addVertex(triangles[i].getVertex(2) + adjust);

				draw_mesh.draw();
			}
			
		}
	}

	this->cam.end();
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

ofSetColor(0, 32, 255);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, false, true);

this->words = "OTHER";

this->words_size = ofPoint(this->font.stringWidth(this->words), this->font.stringHeight(this->words));

this->paths = this->font.getStringAsPoints(this->words);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

for (int p_index = 0; p_index < this->paths.size(); p_index++) {

vector<ofPolyline> outline = this->paths[p_index].getOutline();

for (int o_index = 0; o_index < outline.size(); o_index++) {

outline[o_index] = outline[o_index].getResampledBySpacing(30);

ofMesh mesh;

ofTessellator t;

t.tessellateToMesh(outline, ofPolyWindingMode::OF_POLY_WINDING_ODD, mesh);

vector<ofMeshFace> triangles = mesh.getUniqueFaces();

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

ofPoint avg = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;

float noise_value = ofNoise(avg.x * 0.005 - ofGetFrameNum() * 0.05);

ofMesh draw_mesh;

ofPoint adjust(-this->words_size.x / 2, this->words_size.y / 2);

if (noise_value < 0.4){

adjust += ofPoint(0, 0, 500 * (noise_value - 0.4));

}

draw_mesh.addVertex(triangles[i].getVertex(0) + adjust);

draw_mesh.addVertex(triangles[i].getVertex(1) + adjust);

draw_mesh.addVertex(triangles[i].getVertex(2) + adjust);

draw_mesh.draw();

}

this->cam.end();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180130

2018年1月29日2018年1月28日

Box男 openFrameworks Kinect

[ Video ]

[ About ]
Kinect V1から取得した特定の座標にBoxを描写しました。処理速度の関係で解像度が低いながらもフード感が出ていい感じ。

[ Source ]

#pragma once

#include <Windows.h>
#include <NuiApi.h>
#include <opencv2/opencv.hpp>
#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) {}

	// Kinect
	INuiSensor* sensor;
	INuiCoordinateMapper* cordinate_mapper;
	HANDLE color_event;
	HANDLE color_handle;
	HANDLE depth_event;
	HANDLE depth_handle;
	HANDLE events[2];
	int width, height;

	// OpenCV
	cv::Mat frame;
	cv::Mat depth;

	// openFrameworks
	ofEasyCam cam;
	ofLight light;
	ofImage frame_img;
};

#pragma once

#include <Windows.h>

#include <NuiApi.h>

#include <opencv2/opencv.hpp>

#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) {}

// Kinect

INuiSensor* sensor;

INuiCoordinateMapper* cordinate_mapper;

HANDLE color_event;

HANDLE color_handle;

HANDLE depth_event;

HANDLE depth_handle;

HANDLE events[2];

int width, height;

// OpenCV

cv::Mat frame;

cv::Mat depth;

// openFrameworks

ofEasyCam cam;

ofLight light;

ofImage frame_img;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(30);
	ofBackground(0);
	ofSetWindowTitle("InstaKinect");

	ofEnableDepthTest();

	// Create Instance
	this->sensor = nullptr;
	HRESULT result = S_OK;
	result = NuiCreateSensorByIndex(0, &sensor);
	if (FAILED(result)) {
		cout << "Error : Create Sensor" << endl;
		return;
	}

	// Initialize
	result = sensor->NuiInitialize(NUI_INITIALIZE_FLAG_USES_COLOR | NUI_INITIALIZE_FLAG_USES_DEPTH);
	if (FAILED(result)) {
		cout << "Error : Initialise COLOR" << endl;
		return;
	}

	// Color
	this->color_event = INVALID_HANDLE_VALUE;
	this->color_handle = INVALID_HANDLE_VALUE;
	color_event = CreateEventW(nullptr, true, false, nullptr);
	result = sensor->NuiImageStreamOpen(NUI_IMAGE_TYPE_COLOR, NUI_IMAGE_RESOLUTION_640x480, 0, 2, color_event, &color_handle);
	if (FAILED(result)) {
		cout << "Error : Color Stream Open" << endl;
		return;
	}

	// Depth
	this->depth_event = INVALID_HANDLE_VALUE;
	this->depth_handle = INVALID_HANDLE_VALUE;
	depth_event = CreateEventW(nullptr, true, false, nullptr);
	result = sensor->NuiImageStreamOpen(NUI_IMAGE_TYPE_DEPTH, NUI_IMAGE_RESOLUTION_640x480, 0, 2, depth_event, &depth_handle);
	if (FAILED(result)) {
		cout << "Error : Depth Stream Open" << endl;
		return;
	}

	// Size
	unsigned long refWidth = 0;
	unsigned long refHeight = 0;
	NuiImageResolutionToSize(NUI_IMAGE_RESOLUTION_640x480, refWidth, refHeight);
	this->width = static_cast<int>(refWidth);
	this->height = static_cast<int>(refHeight);

	// Mapp
	this->cordinate_mapper = nullptr;
	result = sensor->NuiGetCoordinateMapper(&this->cordinate_mapper);
	if (FAILED(result)) {
		cout << "Error : Cordinate Mapper " << endl;
		return;
	}

	// OpenCV
	this->frame_img.allocate(this->width, this->height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(this->frame_img.getHeight(), this->frame_img.getWidth(), CV_MAKETYPE(CV_8UC3, this->frame_img.getPixels().getNumChannels()), this->frame_img.getPixels().getData(), 0);
	this->depth = cv::Mat(height, width, CV_16UC1);

	this->events[0] = this->color_event;
	this->events[1] = this->depth_event;

}

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

	HRESULT result = S_OK;

	// Color Table
	cv::Vec3b color[7];
	color[0] = cv::Vec3b(0, 0, 0);
	color[1] = cv::Vec3b(255, 0, 0);
	color[2] = cv::Vec3b(0, 255, 0);
	color[3] = cv::Vec3b(0, 0, 255);
	color[4] = cv::Vec3b(255, 255, 0);
	color[5] = cv::Vec3b(255, 0, 255);
	color[6] = cv::Vec3b(0, 255, 255);

	std::vector<NUI_COLOR_IMAGE_POINT> color_point(width * height);

	// Wait frame update.
	ResetEvent(this->color_event);
	ResetEvent(this->depth_event);
	WaitForMultipleObjects(ARRAYSIZE(this->events), this->events, true, INFINITE);

	// Get frame from color camera.
	NUI_IMAGE_FRAME colorImageFrame = { 0 };
	result = sensor->NuiImageStreamGetNextFrame(this->color_handle, 0, &colorImageFrame);
	if (FAILED(result)) {
		std::cerr << "Error : NuiImageStreamGetNextFrame( COLOR )" << std::endl;
		return;
	}

	// Get image data.
	INuiFrameTexture* pColorFrameTexture = colorImageFrame.pFrameTexture;
	NUI_LOCKED_RECT colorLockedRect;
	pColorFrameTexture->LockRect(0, &colorLockedRect, nullptr, 0);

	//// Get frame from depth camera.
	NUI_IMAGE_FRAME depthImageFrame = { 0 };
	result = this->sensor->NuiImageStreamGetNextFrame(this->depth_handle, 0, &depthImageFrame);
	if (FAILED(result)) {
		std::cerr << "Error : NuiImageStreamGetNextFrame( DEPTH )" << std::endl;
		return;
	}

	// Get depth data.
	BOOL nearMode = false;
	INuiFrameTexture* pDepthFrameTexture = nullptr;
	this->sensor->NuiImageFrameGetDepthImagePixelFrameTexture(this->depth_handle, &depthImageFrame, &nearMode, &pDepthFrameTexture);
	NUI_LOCKED_RECT depthLockedRect;
	pDepthFrameTexture->LockRect(0, &depthLockedRect, nullptr, 0);

	// OpenCV(image)
	cv::Mat src = cv::Mat(this->height, this->width, CV_8UC4, reinterpret_cast<unsigned char*>(colorLockedRect.pBits));
	cv::cvtColor(src, this->frame, CV_BGRA2RGB);
	cv::imshow("frame", this->frame);

	// OpenCV(depth)
	cv::Mat bufferMat = cv::Mat::zeros(height, width, CV_16UC1);
	NUI_DEPTH_IMAGE_PIXEL* depth_pixel = reinterpret_cast<NUI_DEPTH_IMAGE_PIXEL*>(depthLockedRect.pBits);
	this->cordinate_mapper->MapDepthFrameToColorFrame(NUI_IMAGE_RESOLUTION_640x480, width * height, depth_pixel, NUI_IMAGE_TYPE_COLOR, NUI_IMAGE_RESOLUTION_640x480, width * height, &color_point[0]);
	for (int y = 0; y < height; y++) {
		for (int x = 0; x < width; x++) {
			unsigned int index = y * width + x;
			bufferMat.at<unsigned short>(color_point[index].y, color_point[index].x) = depth_pixel[index].depth;
		}
	}
	bufferMat.copyTo(this->depth);
	//cv::imshow("depth", this->depth);

	// Release
	pColorFrameTexture->UnlockRect(0);
	pDepthFrameTexture->UnlockRect(0);
	this->sensor->NuiImageStreamReleaseFrame(this->color_handle, &colorImageFrame);
	this->sensor->NuiImageStreamReleaseFrame(this->depth_handle, &depthImageFrame);

	this->light.setPosition(ofVec3f(0, 0, 4096));
	ofEnableLighting();
	this->light.enable();
}

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

	this->cam.begin();
	ofTranslate(-ofGetWidth() / 2, -ofGetHeight() / 2, -512);
	ofRotateX(180);

	for (int y = 0; y < this->depth.rows; y += 5) {

		for (int x = 0; x < this->depth.cols; x += 5) {

			int z = depth.at<unsigned short>(y, x);

			if (z != 0 && z < 1024 + 512) {
				ofDrawBox(ofVec3f(x, y, z), 8);
			}
			else {

			}
		}
	}

	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);

ofBackground(0);

ofSetWindowTitle("InstaKinect");

ofEnableDepthTest();

// Create Instance

this->sensor = nullptr;

HRESULT result = S_OK;

result = NuiCreateSensorByIndex(0, &sensor);

if (FAILED(result)) {

cout << "Error : Create Sensor" << endl;

return;

}

// Initialize

result = sensor->NuiInitialize(NUI_INITIALIZE_FLAG_USES_COLOR | NUI_INITIALIZE_FLAG_USES_DEPTH);

if (FAILED(result)) {

cout << "Error : Initialise COLOR" << endl;

return;

}

// Color

this->color_event = INVALID_HANDLE_VALUE;

this->color_handle = INVALID_HANDLE_VALUE;

color_event = CreateEventW(nullptr, true, false, nullptr);

result = sensor->NuiImageStreamOpen(NUI_IMAGE_TYPE_COLOR, NUI_IMAGE_RESOLUTION_640x480, 0, 2, color_event, &color_handle);

if (FAILED(result)) {

cout << "Error : Color Stream Open" << endl;

return;

}

// Depth

this->depth_event = INVALID_HANDLE_VALUE;

this->depth_handle = INVALID_HANDLE_VALUE;

depth_event = CreateEventW(nullptr, true, false, nullptr);

result = sensor->NuiImageStreamOpen(NUI_IMAGE_TYPE_DEPTH, NUI_IMAGE_RESOLUTION_640x480, 0, 2, depth_event, &depth_handle);

if (FAILED(result)) {

cout << "Error : Depth Stream Open" << endl;

return;

}

// Size

unsigned long refWidth = 0;

unsigned long refHeight = 0;

NuiImageResolutionToSize(NUI_IMAGE_RESOLUTION_640x480, refWidth, refHeight);

this->width = static_cast<int>(refWidth);

this->height = static_cast<int>(refHeight);

// Mapp

this->cordinate_mapper = nullptr;

result = sensor->NuiGetCoordinateMapper(&this->cordinate_mapper);

if (FAILED(result)) {

cout << "Error : Cordinate Mapper " << endl;

return;

}

// OpenCV

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

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

this->depth = cv::Mat(height, width, CV_16UC1);

this->events[0] = this->color_event;

this->events[1] = this->depth_event;

}

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

void ofApp::update() {

HRESULT result = S_OK;

// Color Table

cv::Vec3b color[7];

color[0] = cv::Vec3b(0, 0, 0);

color[1] = cv::Vec3b(255, 0, 0);

color[2] = cv::Vec3b(0, 255, 0);

color[3] = cv::Vec3b(0, 0, 255);

color[4] = cv::Vec3b(255, 255, 0);

color[5] = cv::Vec3b(255, 0, 255);

color[6] = cv::Vec3b(0, 255, 255);

std::vector<NUI_COLOR_IMAGE_POINT> color_point(width * height);

// Wait frame update.

ResetEvent(this->color_event);

ResetEvent(this->depth_event);

WaitForMultipleObjects(ARRAYSIZE(this->events), this->events, true, INFINITE);

// Get frame from color camera.

NUI_IMAGE_FRAME colorImageFrame = { 0 };

result = sensor->NuiImageStreamGetNextFrame(this->color_handle, 0, &colorImageFrame);

if (FAILED(result)) {

std::cerr << "Error : NuiImageStreamGetNextFrame( COLOR )" << std::endl;

return;

}

// Get image data.

INuiFrameTexture* pColorFrameTexture = colorImageFrame.pFrameTexture;

NUI_LOCKED_RECT colorLockedRect;

pColorFrameTexture->LockRect(0, &colorLockedRect, nullptr, 0);

//// Get frame from depth camera.

NUI_IMAGE_FRAME depthImageFrame = { 0 };

result = this->sensor->NuiImageStreamGetNextFrame(this->depth_handle, 0, &depthImageFrame);

if (FAILED(result)) {

std::cerr << "Error : NuiImageStreamGetNextFrame( DEPTH )" << std::endl;

return;

}

// Get depth data.

BOOL nearMode = false;

INuiFrameTexture* pDepthFrameTexture = nullptr;

this->sensor->NuiImageFrameGetDepthImagePixelFrameTexture(this->depth_handle, &depthImageFrame, &nearMode, &pDepthFrameTexture);

NUI_LOCKED_RECT depthLockedRect;

pDepthFrameTexture->LockRect(0, &depthLockedRect, nullptr, 0);

// OpenCV(image)

cv::Mat src = cv::Mat(this->height, this->width, CV_8UC4, reinterpret_cast<unsigned char*>(colorLockedRect.pBits));

cv::cvtColor(src, this->frame, CV_BGRA2RGB);

cv::imshow("frame", this->frame);

// OpenCV(depth)

cv::Mat bufferMat = cv::Mat::zeros(height, width, CV_16UC1);

NUI_DEPTH_IMAGE_PIXEL* depth_pixel = reinterpret_cast<NUI_DEPTH_IMAGE_PIXEL*>(depthLockedRect.pBits);

this->cordinate_mapper->MapDepthFrameToColorFrame(NUI_IMAGE_RESOLUTION_640x480, width * height, depth_pixel, NUI_IMAGE_TYPE_COLOR, NUI_IMAGE_RESOLUTION_640x480, width * height, &color_point[0]);

for (int y = 0; y < height; y++) {

for (int x = 0; x < width; x++) {

unsigned int index = y * width + x;

bufferMat.at<unsigned short>(color_point[index].y, color_point[index].x) = depth_pixel[index].depth;

}

bufferMat.copyTo(this->depth);

//cv::imshow("depth", this->depth);

// Release

pColorFrameTexture->UnlockRect(0);

pDepthFrameTexture->UnlockRect(0);

this->sensor->NuiImageStreamReleaseFrame(this->color_handle, &colorImageFrame);

this->sensor->NuiImageStreamReleaseFrame(this->depth_handle, &depthImageFrame);

this->light.setPosition(ofVec3f(0, 0, 4096));

ofEnableLighting();

this->light.enable();

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(-ofGetWidth() / 2, -ofGetHeight() / 2, -512);

ofRotateX(180);

for (int y = 0; y < this->depth.rows; y += 5) {

for (int x = 0; x < this->depth.cols; x += 5) {

int z = depth.at<unsigned short>(y, x);

if (z != 0 && z < 1024 + 512) {

ofDrawBox(ofVec3f(x, y, z), 8);

}

else {

}

this->cam.end();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/insta20180128

2018年1月28日2018年1月27日

Boxの波 3D版　openFrameworks

[ Video ]

[ About ]
今回はBoxをx, y, zに均一に配置しています。Noiseで求められた値を元に描写をする / しないを判定しています。昨日と同じように距離 + フレーム数をNoiseの引数に与えているので、中心から伝播していくような動きになっています。

[ 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;
	ofLight light;
};

#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;

ofLight light;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();

	ofEnableLighting();
	this->light.setAmbientColor(ofFloatColor(0.1, 0.1, 0.5, 1.0));
	this->light.setDiffuseColor(ofFloatColor(0.2, 0.2, 1.0));
	this->light.setSpecularColor(ofFloatColor(1.0, 1.0, 1.0));
	this->light.enable();
}

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

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

	this->cam.begin();
	this->light.setPosition(this->cam.getPosition());

	float assembly_size = ofGetWidth() > ofGetHeight() ? ofGetWidth() : ofGetHeight();
	int box_size = 30;
	for (int x = -assembly_size / 2 ; x <= assembly_size / 2; x += box_size) {

		for (int y = -assembly_size / 2; y <= assembly_size / 2; y += box_size) {

			for (int z = -assembly_size / 2; z <= assembly_size / 2; z += box_size) {

				float noise_value = ofNoise(ofVec3f(x, y, z).length() * 0.008 - ofGetFrameNum() * 0.03);
				if (noise_value < 0.4) {

					ofDrawBox(ofPoint(x, y, z), box_size, box_size, box_size);
				}
			}
		}
	}

	this->cam.end();
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

ofEnableLighting();

this->light.setAmbientColor(ofFloatColor(0.1, 0.1, 0.5, 1.0));

this->light.setDiffuseColor(ofFloatColor(0.2, 0.2, 1.0));

this->light.setSpecularColor(ofFloatColor(1.0, 1.0, 1.0));

this->light.enable();

}

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

void ofApp::update() { }

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

void ofApp::draw() {

this->cam.begin();

this->light.setPosition(this->cam.getPosition());

float assembly_size = ofGetWidth() > ofGetHeight() ? ofGetWidth() : ofGetHeight();

int box_size = 30;

for (int x = -assembly_size / 2 ; x <= assembly_size / 2; x += box_size) {

for (int y = -assembly_size / 2; y <= assembly_size / 2; y += box_size) {

for (int z = -assembly_size / 2; z <= assembly_size / 2; z += box_size) {

float noise_value = ofNoise(ofVec3f(x, y, z).length() * 0.008 - ofGetFrameNum() * 0.03);

if (noise_value < 0.4) {

ofDrawBox(ofPoint(x, y, z), box_size, box_size, box_size);

}

this->cam.end();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180127

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