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Topic: spherical texture mapping (Read 650 times) |
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jaN
 
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spherical texture mapping
« on: Dec 10th, 2002, 7:00pm » |
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A rather simple working example can be found on www.superposh.com (follow the first link on the news page, the website is under heavy construction)
The source code can be found here... (It is extremely messy, not documented at all,slow, and most of it taken from the learning section of the P5 website. the end result still looks rather nice).
////////////////////////////////////////////
float mx;
float my;
float delay = 50.0;
int pixelsize = 4;
float timer = 0;
BImage a;
int[][] aPixels = new int[128][128];
BImage b;
int[][] bPixels = new int[270][9];
boolean onetime = true;
void setup() {
size(420,200);
background(0,0,0);
noLights();
rectMode(CENTER_DIAMETER);
}
void drawpixel() {
stroke(250,200,60);
point(0,0);
}
void drawpixel2() {
stroke(100);
point(0,0);
}
void setImages() { // set background
a = loadImage("mask.gif");
image(a, 0, 0);
for(int i=0; i<128; i++) {
for(int j=0; j<128; j++) {
aPixels[j][i] = pixels[i*width+j];
}
}
b = loadImage("text.gif");
image(b, 0, 0);
for(int i=0; i<9; i++) {
for(int j=0; j<270; j++) {
bPixels[j][i] = pixels[i*width+j];
}
}
}
float ra = -(210-mouseX)/500.0;
void drawglobe(float x, float y, float globesize) {
push();
int s = int(globesize);
float size = globesize; // scaler
push(); translate(x,y,10);
rotateY(ra*(timer/50.0));
rotateZ((PI/24)*sin(timer/50.0));
for(int j=-s; j<s; j=j+2) {
push();
translate(0,j,0);
for (int i = 0; i<s*2; i++) {
rotateY(PI/64);
push(); translate(0,0,sqrt(size*size-j*j));
if((aPixels[i][j+s]) != -1){
drawpixel();
} else { drawpixel2(); } pop();
}
pop();
}
pop();
pop();
}
void drawship() {
lights();
push();
stroke(200); fill(30);
//scale(0.5);
box(4);
triangle(0,0,8,3,8,-3); triangle(0,0,-8,3,-8,-3);
pop();
noLights();
}
void drawtext(float x, float y, float globesize) {
push();
int s = int(globesize);
float size = globesize; // scaler
push(); translate(x,y,10);
rotateY(ra*(timer/50.0));
rotateZ((PI/24)*sin(timer/50.0));
for(int j=-4; j<5; j++) {
push();
translate(0,j,0);
for (int i = 0; i<270; i++) {
rotateY(PI/135);
push(); translate(0,0,sqrt(70*70-j*j));
if((bPixels[i][4+j]) != -1){
stroke(250);
point(0,0);
}
pop();
}
pop();
}
pop();
pop();
}
float mx_new = 210;
float my_new = 100;
void loop()
{
if(onetime) {
setImages();
onetime = false;
}
if (mousePressed) {
if(abs((210-mouseX) - mx) > 1) {
mx = mx + ((210-mouseX) - mx)/delay;
}
if(abs((100-mouseY) - my) > 1) {
my = my + ((100-mouseY) - my)/delay;
}
push(); translate(0,0,42); fill(40); rect(0,0,900,500); pop();
mx_new = 210-mx;
my_new = 100-my;
drawglobe(mx_new,my_new,64);
drawtext(mx_new,my_new,135);
} else {
push(); translate(0,0,42); fill(40); rect(0,0,900,500); pop();
drawglobe(mx_new,my_new,64);
drawtext(mx_new,my_new,135);
}
timer=timer+2;
}
///////////////////////////////////////////////
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jaN
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REAS
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Re: spherical texture mapping
« Reply #1 on: Dec 11th, 2002, 7:00pm » |
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I think this work is very interesting, but i think people will have a hard time finding it on your site. Please make an easier way of getting to your work. 
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gkoshra
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Re: spherical texture mapping
« Reply #2 on: Feb 24th, 2003, 11:20am » |
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I think I found it, is it the thesis stuff? If so, it's all really nice.
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vent
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Re: spherical texture mapping
« Reply #3 on: Apr 22nd, 2003, 4:59am » |
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I couldn't find it on your site, but I took a look at some of the other stuff and was quite impressed. Excellent work.
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http://www.shapevent.com/
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pollux
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Re: spherical texture mapping
« Reply #4 on: Apr 23rd, 2003, 4:32am » |
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i'm sure it is great, but couldn't find it... desoleé
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pollux | www.frwrd.net
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