Processing Forum

Nexus 4 not recognized by OSX

[0 Replies]
- 12-Mar-2013 08:19 AM
- Forum: Android Processing
Dear people from the Processing forum,

I struggle since a couple of days with this problem:

the Nexus 4, because of the use of the MTF protocol (info here: http://en.wikipedia.org/wiki/Media_Transfer_Protocol ) which is not implemented in OSX , can't be used in processing android as a usb debug device.

I found a hint here, using a connection via Tcp between the phone and the ADB server instead of the Usb cable, but, I can't manage to define in Processing the parameters of the ADB Server...

Any ideas ?

tl;dr :

how can I use my Nexus 4 with processing android without USB cable ?

Using GLSL shaders

[6 Replies]
- 02-Aug-2012 03:13 PM
- Forum: Core Library Questions
Hello,

I'm trying to use one of the shaders found on this great site (this one -> http://glsl.heroku.com/e#3265.2 ), with the last version of processing.

Here is my code:
2. PShader space;
3. boolean customShader;
5. public void setup() {
6. size(400, 400, P3D);
7. noStroke();
8. fill(204);
10. toon = loadShader(PShader.LIT, "SpaceFrag.glsl", "SpaceVert.glsl");
11. shader(space);
12. customShader = true;
13. }
15. public void draw() {
16. noStroke();
17. background(0);
18. float dirY = (mouseY / float(height) - 0.5) * 2;
19. float dirX = (mouseX / float(width) - 0.5) * 2;
20. directionalLight(204, 204, 204, -dirX, -dirY, -1);
21. translate(width/2, height/2);
22. box(80);
23. }
25. public void mousePressed() {
26. if (dist(mouseX, mouseY, width/2, height/2) < 80) {
27. if (customShader) {
28. resetShader(PShader.LIT);
29. customShader = false;
30. }
31. else {
32. shader(space);
33. customShader = true;
34. }
35. }
36. }
and here is the code of the shader:
2. #ifdef GL_ES
3. precision mediump float;
4. #endif
6. uniform float time;
7. uniform vec2 resolution;
10. // NEBULA - CoffeeBreakStudios.com (CBS)
11. // Work in progress...
12. //
13. // 3148.26: Switched from classic to simplex noise
14. // 3148.27: Reduced number of stars
15. // 3249.0: Switched to fast computed 3D noise. Less quality but ~ 2x faster
16. // 3249.5: Removed use of random number generator to gain performance
17. // 3265.0: Added rotation: glsl.heroku.com/e#3005.1
19. //Utility functions
21. vec3 fade(vec3 t) {
22. return vec3(1.0,1.0,1.0);//t*t*t*(t*(t*6.0-15.0)+10.0);
23. }
25. vec2 rotate(vec2 point, float rads) {
26. float cs = cos(rads);
27. float sn = sin(rads);
28. return point * mat2(cs, -sn, sn, cs);
29. }
31. vec4 randomizer4(const vec4 x)
32. {
33. vec4 z = mod(x, vec4(5612.0));
34. z = mod(z, vec4(3.1415927 * 2.0));
35. return(fract(cos(z) * vec4(56812.5453)));
36. }
38. // Fast computed noise
39. // http://www.gamedev.net/topic/502913-fast-computed-noise/
41. const float A = 1.0;
42. const float B = 57.0;
43. const float C = 113.0;
44. const vec3 ABC = vec3(A, B, C);
45. const vec4 A3 = vec4(0, B, C, C+B);
46. const vec4 A4 = vec4(A, A+B, C+A, C+A+B);
48. float cnoise4(const in vec3 xx)
49. {
50. vec3 x = mod(xx + 32768.0, 65536.0);
51. vec3 ix = floor(x);
52. vec3 fx = fract(x);
53. vec3 wx = fx*fx*(3.0-2.0*fx);
54. float nn = dot(ix, ABC);
56. vec4 N1 = nn + A3;
57. vec4 N2 = nn + A4;
58. vec4 R1 = randomizer4(N1);
59. vec4 R2 = randomizer4(N2);
60. vec4 R = mix(R1, R2, wx.x);
61. float re = mix(mix(R.x, R.y, wx.y), mix(R.z, R.w, wx.y), wx.z);
63. return 1.0 - 2.0 * re;
64. }
65. float surface3 ( vec3 coord, float frequency ) {
67. float n = 0.0;
69. n += 1.0 * abs( cnoise4( coord * frequency ) );
70. n += 0.5 * abs( cnoise4( coord * frequency * 2.0 ) );
71. n += 0.25 * abs( cnoise4( coord * frequency * 4.0 ) );
72. n += 0.125 * abs( cnoise4( coord * frequency * 8.0 ) );
73. n += 0.0625 * abs( cnoise4( coord * frequency * 16.0 ) );
75. return n;
76. }
78. void main( void ) {
79. float rads = radians(time*3.15);
80. vec2 position = gl_FragCoord.xy / resolution.xy;
81. position += rotate(position, rads);
82. float n = surface3(vec3(position*sin(time*0.1), time * 0.05)*mat3(1,0,0,0,.8,.6,0,-.6,.8),0.9);
83. float n2 = surface3(vec3(position*cos(time*0.1), time * 0.04)*mat3(1,0,0,0,.8,.6,0,-.6,.8),0.8);
84. float lum = length(n);
85. float lum2 = length(n2);
87. vec3 tc = pow(vec3(1.0-lum),vec3(sin(position.x)+cos(time)+4.0,8.0+sin(time)+4.0,8.0));
88. vec3 tc2 = pow(vec3(1.1-lum2),vec3(5.0,position.y+cos(time)+7.0,sin(position.x)+sin(time)+2.0));
89. vec3 curr_color = (tc*0.8) + (tc2*0.5);
92. //Let's draw some stars
94. float scale = sin(0.3 * time) + 5.0;
95. vec2 position2 = (((gl_FragCoord.xy / resolution) - 0.5) * scale);
96. float gradient = 0.0;
97. vec3 color = vec3(0.0);
98. float fade = 0.0;
99. float z = 0.0;
100. vec2 centered_coord = position2 - vec2(sin(time*0.1),sin(time*0.1));
101. centered_coord = rotate(centered_coord, rads);
103. for (float i=1.0; i<=60.0; i++)
104. {
105. vec2 star_pos = vec2(sin(i) * 250.0, sin(i*i*i) * 250.0);
106. float z = mod(i*i - 10.0*time, 256.0);
107. float fade = (256.0 - z) /256.0;
108. vec2 blob_coord = star_pos / z;
109. gradient += ((fade / 384.0) / pow(length(centered_coord - blob_coord), 1.5)) * ( fade);
110. }
112. curr_color += gradient;
114. gl_FragColor = vec4(curr_color, 1.0);
115. }
Currently, I just have a black screen. Does anyone has an idea ?

using videos masks with GSVideo + GLGraphics

[1 Reply]
- 22-Jan-2012 06:53 PM
- Forum: Contributed Library Questions
Hi,

i'm trying to do masks on videos, using for this videos in grayscale, with GLGraphics + GSVideo + processing 1.5.1, but it doesn't run as expected. I can't see what is wrong... Any ideas ?

Here is my code:
2. import processing.opengl.*;
3. import codeanticode.glgraphics.*;
4. import codeanticode.gsvideo.*;
6. GSMovie movie, movie2, movie3;
7. GLGraphicsOffScreen offscreen;
9. GLTextureFilter maskFilter;
10. GLTexture maskedTex;
11. GLTexture imgMask;
12. GLTexture imgTex, tex, tex2;
14. void setup() {
16. size(1280, 720, GLConstants.GLGRAPHICS);
18. movie = new GSMovie(this, "/Volumes/SSD1/video_glitch/17_1_2012_at_16_56_20_GLITCH.avi");
19. movie2 = new GSMovie(this, "/Volumes/SSD1/video_raw/mask.avi");
20. movie3 = new GSMovie(this, "/Volumes/SSD1/video_raw/17_1_2012_at_17_1_3_PASS.avi");
21. frameRate (24);
23. imgMask = new GLTexture(this, 1280, 720);
24. tex = new GLTexture(this, 1280, 720);
25. tex2 = new GLTexture(this, 1280, 720);
26. maskedTex = new GLTexture(this, 1280, 720);
27. imgTex = new GLTexture(this, 1280, 720);
28. maskFilter = new GLTextureFilter(this, "Mask.xml");
30. offscreen = new GLGraphicsOffScreen(this, 1280, 720);
32. movie.setPixelDest(tex);
33. movie2.setPixelDest(imgTex);
34. movie3.setPixelDest(tex2);
35. movie.loop();
36. movie2.loop();
37. movie3.loop();
38. }
39. void movieEvent(GSMovie m) {
40. if (m == movie) {
41. movie.read();
42. }
43. if (m == movie2) {
44. movie2.read();
45. }
46. if (m == movie3) {
47. movie3.read();
48. }
49. }
51. void draw () {
53. background(0);
55. offscreen.beginDraw();
56. offscreen.clear(0, 0);
57. offscreen.fill(0, 255);
58. if (imgTex.putPixelsIntoTexture()) {
59. offscreen.image(imgTex, 0, 0, 1280, 720);
60. }
61. offscreen.endDraw();
63. imgMask = offscreen.getTexture();
65. maskFilter.setParameterValue("mask_factor", 0.0f);
66. maskFilter.apply(new GLTexture[] { tex, imgMask} , maskedTex);
68. // video 1
69. if (tex2.putPixelsIntoTexture()) {
70. image(tex2, 0, 0, 1280, 720);
71. }
72. // video 2 + mask
73. if (maskedTex.putPixelsIntoTexture()) {
74. image(maskedTex, 0, 0, 1280, 720);
75. }
76. }

creating threads with Processing.js ?

[4 Replies]
- 02-May-2011 01:29 PM
- Forum: Processing with Other Languages
hi !
I'm working on a sketch in processing.js, where data are dynamicaly loaded (every seconds ) from a text file on the server through the loadString function. But, everytime I load the textfile, my sketch is slowed down by the process. Is there a way to create a threads to run this process in processing.js or javascript ? Or maybe another solution to handle this problem ?

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