If you want puredata vanilla solution to build by yourself, check the help of [tabwrite~]

Otherwise, many libraries have differents scope like cyclone or ceammc...

Here is a Gem abstraction I made to turn any model to point, and change point size.
I guess that if you import any volumetric 3d model in Gem using [model] then you can display it as point cloud.

Note that this method is obsolete in recent openGl, and a better solution should be to use glsl and vertex shader instead.

drawmode.zip

Example:

Note that when you change [boids2d 15] to [boids2d 115], it will reset the object to default state so you need to send all messages data again, so you can simply use the bang in [pd init].

@atux said:

canvas.top
... couldn't create

-> This is my fault, and it's not an important issue... I fixed it in zip.

If you need more boids number like 115, you also need to change [clone myboid 15] to [clone myboid 115]

It works for me, but you certainly need to refresh the [number 15( message AFTER create the [pd boid] subpatches creation.

Also, here is a better version using [clone] object that has been part of puredata and makes the design more convienient.

(Note that boids Gem examples need [poltocar] object fom cyclone to work well)

boids2d_clone_gem_example.zip

Last time I tried gpio I was using the (deprecated) wiring pi gpio externals.
Here is a compiled one, I don't know if it's ok on last Raspbian.
wiringPi_gpio.zip

You might need to install wiring pi on Raspberry... and run pd as root

@atux You need to manually add number in [route] and connect them to duplicated [pd boid] subpatch in [gem_example]

A better way would be to use [clone] and create an abstration with [pd boids] content.

Not sure if faustgen~ is still maintained.

But you can find [lang.faust~] from ceammc lib that works well.
Also there is [ui.faust~] in the same lib who add a UI to the object:

https://github.com/uliss/pure-data

I tried on a Intel Imac, same problems with same shaders.
Now, I tried on a windows 10 machine... same problems again, only same 3 shaders works (like Bokeh)..

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.

Yeah, I tried already but that's not the problem. And for example Bokeh works with the same line...