Re: [PD] exporting opengl as vector

2016-02-04 Thread Py Fave
i see it's not easy :-) because i want to get object's wireframe at the end. (from the viewpoint perspective , not as 3d) svg export more than obj and more or less real time i mean in a fast way if it'not work for gem, do you know any other tools exporting a 3d scene to (flat )vectors?

Re: [PD] exporting opengl as vector

2016-02-04 Thread Py Fave
i'm getting a bit off topic, but can blender do this kind of thing? -video input >> shader >>distortion of wireframe >>perspective>>svg file ? 2016-02-04 9:19 GMT+01:00 Py Fave : > i see it's not easy :-) > > because i want to get object's wireframe at the end. > > (from the

Re: [PD] exporting opengl as vector

2016-02-03 Thread cyrille henry
Le 03/02/2016 21:20, Py Fave a écrit : that's what i was thinking too... i remember a long time ago :-) there was a "fake driver" for graphics cards made for ripping 3d game graphics.(on directx windows IIRC) yes, it was coppying the information send from the CPU to the GPU. but since you

Re: [PD] exporting opengl as vector

2016-02-03 Thread Jack
Hello, Putting XYZ coord in RGB texture could be a way to achieve what you want (in a shader) ? Things should be automatically compute between vertex and fragment (to get texture). ++ Jack Le 03/02/2016 17:33, Py Fave a écrit : > Hello list, > > > is it possible to export the result of a

Re: [PD] exporting opengl as vector

2016-02-03 Thread Py Fave
that's what i was thinking too... i remember a long time ago :-) there was a "fake driver" for graphics cards made for ripping 3d game graphics.(on directx windows IIRC) does software emulator for GPU exists?debugger? on linux or windows? or a (not too hard) way to access the GPU's memory and

Re: [PD] exporting opengl as vector

2016-02-03 Thread Jack
Le 03/02/2016 17:48, cyrille henry a écrit : > hello, > > There are exemple on how to export an obj file made of simple primitive. > (in Gem exemple directory 11.obj_exporter). But it will not work with > shaders. > > > since shader are computed in the graphic card, it's not easy to import a >

Re: [PD] exporting opengl as vector

2016-02-03 Thread Jack
I think, a loop like this should be doable (not sure, expert on shader can help) ? : Your coord vertices -> convert to RGB colors on fragment -> frame buffer as texture -> get your new color on vertices from texture (with shader). You will need to grab back texture on each frame if you want to

[PD] exporting opengl as vector

2016-02-03 Thread Py Fave
Hello list, is it possible to export the result of a gem window as vectors? i am doing the classical plane 3d extrusion (via a shader) but need vectors as output 2d vector(prefered ) or 3d model what would work ? any hint welcome! i saw it was already asked a long time ago. any news in this

Re: [PD] exporting opengl as vector

2016-02-03 Thread cyrille henry
hello, There are exemple on how to export an obj file made of simple primitive. (in Gem exemple directory 11.obj_exporter). But it will not work with shaders. since shader are computed in the graphic card, it's not easy to import a geometry back to the CPU. but you can use your algorythm to