flight404は正方形を作ってそこにテクスチャとして画像を貼付けているようですが、僕は手抜きをしてProcessingにもとから付いてるimage()メソッドを使いました。
/***********************************
*
* Opengl_glow.pde
*
***********************************/
int STARS_NUM = 200;
int CORONA_NUM = 100;
float GRAVITY = 0.1;
float MAX_VELOCITY = 5;
Star[] stars = new Star[STARS_NUM];
Corona[] coronas = new Corona[CORONA_NUM];
void setup(){
size(800,400,OPENGL);
hint( ENABLE_OPENGL_4X_SMOOTH );
background(0);
PImage coronaImg=loadImage("corona.png");
for(int i=0; i<CORONA_NUM; i++){
float w=random(20,200);
float h=w;
Point pos = new Point(random(0+w,width-w), random(0+h,height-h));
PVector vel = new PVector(random(-2,2), random(-2,2));
coronas[i] = new Corona(coronaImg,pos,vel,w,h);
}
PImage starImg = loadImage("star.png");
for(int i=0; i<STARS_NUM; i++){
float w=random(1,30);
if(i%23==0) w=random(70,100);
float h=w;
Point pos = new Point(random(0+w,width-w), random(0+h,height-h));
PVector vel = new PVector(random(-6,6), random(-6,6));
stars[i]=new Star(starImg,pos,vel,w,h);
}
}
void draw(){
newFrame();
glUtil();
for(int i=0;i<CORONA_NUM; i++){
coronas[i].move();
coronas[i].bounce();
coronas[i].display();
}
for(int i=0; i<STARS_NUM; i++){
stars[i].move();
stars[i].bounce();
stars[i].display();
}
}
void newFrame(){
background(0,20);
}
/***********************************
*
* Point.pde
*
***********************************/
class Point{
float x;
float y;
float z;
Point(){ }
Point(float x,float y){
this.x = x;
this.y = y;
}
Point(float x,float y,float z){
this(x,y);
this.z = z;
}
}
/***********************************
*
* Star.pde
*
***********************************/
class Star{
PImage starImg;
Point pos = new Point();
PVector vel = new PVector();
float w;
float h;
Star(){ }
Star(PImage starImg,Point pos,PVector vel,float w,float h){
this.starImg=starImg;
this.pos = pos;
this.vel = vel;
this.w = w;
this.h = h;
}
void display(){
pushMatrix();
translate(0,0,pos.z);
image(starImg,pos.x-w/2,pos.y-h/2,w,h);
popMatrix();
}
void move(){
pos.x+=random(-5,5);
pos.y+=random(-5,5);
pos.z+=random(-10,10);
}
void bounce(){
if(pos.x+w/2>width || pos.x-w/2<0){
vel.x*= -1;
if(pos.x+w/2>width) pos.x=width-w/2;
else pos.x=w/2;
}
if(pos.y+h/2>height || pos.y-h/2<0){
vel.y*= -1;
if(pos.y+h/2>height) pos.y=height-h/2;
else pos.y=h/2;
}
}
}
/***********************************
*
* Corona.pde
*
***********************************/
class Corona extends Star{
PImage coronaImg;
Corona(){ }
Corona(PImage coronaImg, Point pos, PVector vel, float w, float h){
super(coronaImg, pos, vel, w, h);
}
}
/***********************************
*
* Util.pde
*
***********************************/
import processing.opengl.*;
import javax.media.opengl.*;
PGraphicsOpenGL pgl;
GL gl;
protected void glUtil() {
pgl = (PGraphicsOpenGL) g;
//gl = pgl.gl;
//pgl.beginGL();
gl=pgl.beginGL();
gl.glDisable(GL.GL_DEPTH_TEST); // This fixes the overlap issue
gl.glEnable(GL.GL_BLEND);// Turn on the blend mode
gl.glBlendFunc(GL.GL_SRC_ALPHA,GL.GL_ONE); // Define the blend mode
pgl.endGL();
}
public void capture(char str) {
if(keyPressed && key == str) {
saveFrame("data/img-####.png");
}
}
public void vertex(PVector p) {
vertex(p.x, p.y, p.z);
}
/** Utility for PVector class
@param c1 control 1 of PVector class
@param c2 control 2 of PVector class
@param p point of PVector class
*/
public void bezierVertex(PVector c1, PVector c2, PVector p) {
bezierVertex(c1.x, c1.y, c1.z, c2.x, c2.y, c2.z, p.x, p.y, p.z);
}
public void curveVertex(PVector p) {
curveVertex(p.x, p.y, p.z);
}
今朝、宅急便で届きました！
