[GEM-dev] [ pd-gem-Feature Requests-2612731 ] glsl_geometry

[IOhannes m zmölnig]

cyrille henry wrote:
> 
>> with [cube], but not with [curve] (though it should be enough to 
>> change the in/out geometry as mentioned above)
> ok, it work here also with cube.
> but i can't make it work with line.

with "line" you mean [curve]?

> even sending [geometry_type GL_LINES GL_LINE_STRIP( to glsl_program 
> befor the linking.

[curve] uses GL_LINE_STRIP as default drawtype, so you might try to set 
the input type of the shader to GL_LINE_STRIP (rather than GL_LNES)
but i really have no experience at all...

btw, you can also set the input and output type separately with 
[geometry_intype $1( and [geometry_outtype $1(

> 
> btw,
> since this message has to be send befor linking, would it be possible to 
> add a message to unlink the shaders?

well, the program is re-linked (that is: unlinked and linkd again) when 
it receives a new link message. isn't that enough?

so
[read shader.geom(
followed by a
[geometry_type GL_LINE_STRIP GL_LINES, read shader.geom(
should work fine

> 
>>
>>> or make it an official Gem example?
>>
>> yes, but the shader provided is so extraordinarily boring that i 
>> wanted to wait for a nice one from you...:-)
> i'm already working on a beter one ;-)
> 

cool

fgmasdr
IOhannes