glsl - Getting vertex-shader transformed geometry back from the gpu in OpenGL -


i generate vertex geometry on cpu , pass gpu , run number of vertex shaders on vertices , these transformed vertices cpu. dont want render vertices or run fragment shaders.

is possible vertex-shader transformed vertices gpu onto cpu? if how?

yes, facility required called "transform feedback buffers". extension opengl-2 http://www.opengl.org/registry/specs/arb/transform_feedback2.txt

introduced being official opengl functionality opengl-3.0


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