As you can see, I I pre-loads   a local JPG file in the SETUP block, it works great.

 

As you can see, It  loads  a local JPG file in the SETUP block, it works great.

 

// @pjs preload must be used to preload the image

/* @pjs preload="laDefense.jpg"; */

PImage b;

void setup() {

  b = loadImage("laDefense.jpg");

  noLoop();

}



void draw() {

  image(b, 0, 0);

}

1. img = loadImage("render_0001.png");

1. loadImage("render0001.png");

1000 high quality pictures

 

2. /**
3. * This sketch shows how one can load
4. * images from internet with requestImage()
5. * to simulate 360 degree rotation.
6. *
7. * Sample bike images are originated from:
8. * JavaScript SpriteSpin library
9. * http://spritespin.ginie.eu/
10. 
    
11. * https://github.com/giniedp/spritespin
12. *
13. */
14. 
    
15. 
    
16. final int C_MIN_IMAGE_NUM = 1;
17. final int C_MAX_IMAGE_NUM = 34;
18. 
    
19. 
    
20. void setup(){
21.    size(480,327);
22.    curImage = loadImage(makeImageUrl(16)); 
23.            // just load image from the middle.
24.            // this is blockign call.
25.    setupFont();   
26. }
27. 
    
28. PImage curImage;
29. PImage inProgressImage;
30. 
    
31. 
    
32. boolean isLoading = false;
33. String imageNameLoading = "";
34. 
    
35. void mouseDragged(){
36.   // calcualte index of the image to load
37.   int indexOfImage = calculateIndexFromMouse(mouseX);
38.   String imageUrl = makeImageUrl(indexOfImage); // returns image url in form    "https://raw.github.com/giniedp/spritespin/master/examples/images/rad_zoom_016.jpg"
39.   
40.   // set image name
41.   imageNameLoading = "image #" + indexOfImage;
42.   
43.   // start loading  
44.   
45.   startDownloadingImage(imageUrl);
46. }
47. 
    
48. int calculateIndexFromMouse(int mX){
49.    return (int) map(mX, 0, width, C_MIN_IMAGE_NUM, C_MAX_IMAGE_NUM);
50. }
51. 
    
52. 
    
53. void startDownloadingImage(String url){
54.    isLoading = true;
55.    inProgressImage = requestImage(url);
56.    
57. }
58. 
    
59. 
    
60. 
    
61. /**
62. * We have images in range [0 to C_MAX_IMAGE_NUM]
63. * "https://raw.github.com/giniedp/spritespin/master/examples/images/rad_zoom_016.jpg"
64. */
65. String makeImageUrl(int n){
66.     if ( n < C_MIN_IMAGE_NUM || n > C_MAX_IMAGE_NUM ){
67.        throw new RuntimeException("Requested invalid image number: "  + n);
68.     }
69.     String threeDigitNum = nf(n, 3);
70.     println("generated url:");
71.     String url = "https://raw.github.com/giniedp/spritespin/master/examples/images/rad_zoom_" + threeDigitNum + ".jpg";
72.     println(url);
73.     return url;    
74. }
75. 
    
76. void draw(){
77.   
78.    curImage = updateIfLoaded(inProgressImage, curImage);
79.    image(curImage,0,0);
80.    if ( isLoading ){
81.      text("Loading ... ", width/2, height/2); 
82.      text(imageNameLoading, width/2, height/2 + 32); 
83.    }
84. 
    
85.       
86. }
87. 
    
88. PImage updateIfLoaded(PImage inProgress, PImage current){
89.    if ( !isLoading ){
90.       return current; 
91.    }
92.    
93.    if ( inProgress == null ){
94.        println("updateIfLoaded() inProgress image is null");
95.        return current;
96.    }
97.    if ( inProgress.width <= 0 ){
98.       return current;
99.    }
100.    
101.    if ( inProgress.height <= 0 ){
102.       return current;
103.    }
104.    
105.    isLoading = false;
106.    return inProgress; 
107. }
108. 
     
109. 
     
110. void setupFont(){ 
111.    PFont fff = createFont("Arial", 24);
112.    textAlign(CENTER);
113.    textFont(fff);
114.    fill(#FF00F0);
115. }