GLSL_Video_Effects_V01.zip

ofelia: [string "package.preload['1003-video1'] = nil package...."]:4: attempt to call a nil value (global 'ofWindow')
ofelia: [string "package.preload['1003-video1'] = nil package...."]:4: attempt to call a nil value (global 'ofWindow')
ofelia: [string "package.preload['1003-video1'] = nil package...."]:4: attempt to call a nil value (global 'ofWindow')
ofelia: [string "package.preload['1003-video1'] = nil package...."]:4: attempt to call a nil value (global 'ofWindow')

anybody understands what i'm doing wrong?

EDIT: somehow it is not opening the playback window.

ofShader: setupShaderFromSource(): GL_FRAGMENT_SHADER shader failed to compile
: ofShader: GL_FRAGMENT_SHADER shader reports:
ERROR: 0:1: '<' : syntax error: syntax error

: ofShader: GL_FRAGMENT_SHADER, offending line 1 :
1 //fragment program
2
3 uniform sampler2D Tex0;

ofShader: checkProgramLinkStatus(): program failed to link
ofShader: ofShader: program reports:
ERROR: One or more attached shaders not successfully compiled

local m = require("$0-video1");

and this does not work:

local M = require("$0-video1");

I do not understand the behaviour yet because in the variable example I can still use

local M = require("$0-abc");

without any problem...

Another relating question: Is ofelia and M still the same?

The actual full script that runs in Lua when you create [ofelia define foo] object is like the following:

 local name = "foo"
 package.preload[name] = nil
 package.loaded[name] = nil
 package.preload[name] = function(this)
 local ofelia = {}
 local M = ofelia
-- Your written script will be here. 
 return M
 end

And sending the 'bang' message to this object will run the following script:

local m = require("foo")
if type(m.bang) == "function" then
  return m:bang() -- the object will output the returned value through its outlet
end

I added M since it's easier to write and the script can be shorter. Also, M is commonly used in Lua as a variable name for a module table.

Therefore, you should not reassign anything to M or ofelia in almost any case since it can be problematic.

GLSL_Video_Effects_V01_Ofelia4.zip

But still, only very few shader works on my macbook (like Bokeh... and two or three more).
Any way to make them all compatible?

or me even the v3 version works without problems (with Windows) with Ofelia v4

Ok, strange, I found an old revision of your patch somewhere that used pdCanvas and pdClock instead of ofCanvas ofClock, and ofelia object was broken...

Maybe you need to specify the GL version in Ofelia?

Yes, I thought about it. I tried to change different shader version adding window:setGLVersion(4,1) etc in setup but had a crash or nothing...
Maybe I need to modify all shader and add a version directive on top to make them working in other systems (like: #version 410).

I updated ofxOfelia

Great, this is the openFrameworks addon, but I am trying to make classic ofelia work under pd for some teaching.

ofShader: setupShaderFromSource(): GL_FRAGMENT_SHADER shader failed to compile
: ofShader: GL_FRAGMENT_SHADER shader reports:
ERROR: 0:1: '<' : syntax error: syntax error

: ofShader: GL_FRAGMENT_SHADER, offending line 1 :
        1   //fragment program
        2   
        3   uniform float Bleach_Opacity;

ofShader: checkProgramLinkStatus(): program failed to link
ofShader: ofShader: program reports:
ERROR: One or more attached shaders not successfully compiled

For bleach, the error is different from apple:

ofShader: setupShaderFromSource(): GL_FRAGMENT_SHADER shader failed to compile
: ofShader: GL_FRAGMENT_SHADER shader reports:
Fragment shader failed to compile with the following errors:
ERROR: error(#60) Unknown char: ""
ERROR: error(#273) 1 compilation errors.  No code generated


: //fragment program

uniform sampler2D Tex0;
uniform float GaussianBlur_Radius;
const float total = (1. + 8. + 28. + 56.) * 2. + 70.;   
                                                      
void main(void) 
{
    vec2 st = gl_TexCoord[0].st;
    vec4 color = vec4(0.0,0.0,0.0,0.0);
    color += (1. / total) * texture2D(Tex0, st - GaussianBlur_Radius * vec2(4. / 4., 0.));
    color += (8. / total)  * texture2D(Tex0, st - GaussianBlur_Radius * vec2(3. / 4., 0.));
    color += (28. / total)  * texture2D(Tex0, st - GaussianBlur_Radius * vec2(2. / 4., 0.));
    color += (56. / total)  * texture2D(Tex0, st - GaussianBlur_Radius * vec2(1. / 4., 0.));
    color +=  (70. / total) * texture2D(Tex0, st);
    color += (1. / total) * texture2D(Tex0, st + GaussianBlur_Radius * vec2(4. / 4., 0.));
    color += (8. / total)  * texture2D(Tex0, st + GaussianBlur_Radius * vec2(3. / 4., 0.));
    color += (28. / total)  * texture2D(Tex0, st + GaussianBlur_Radius * vec2(2. / 4., 0.));
    color += (56. / total)  * texture2D(Tex0, st + GaussianBlur_Radius * vec2(1. / 4.,ofShader: checkProgramLinkStatus(): program failed to link

ofShader: ofShader: program reports:
Fragment shader(s) were not successfully compiled before glLinkProgram() was called. Link failed.