Ls,
Perhaps a bit specific, but I couldnt find a stage3d forum. If there is please direct me to it.
Im trying to use/abuse the GPU for some heavy calculations.
I can create a vertex shader to manipulate the vertices of a mesh containing the xyz's that I need
But I dont know how to read back the changes made by the vertex program to the vertex coordinates.
So Im not making translations in flash and feeding them to stage3d, but i want to do it the other way around.
I thought about combining it with a fragment shader to put the xyz vertices coords as rgb pixels in a texture.
But then, how to read the texture in flash?
I could perhaps do a stage3d createbitmap, but I hear thats very slow.
Could I access the backbuffer directly?
I only need about 100 pixels for info storage so a 10x10 stage/texture would suffice.
Thx for reading this far.
Regards,
M