Error during projector camera calibration Home › Forums › AR Sandbox Forum › Error during projector camera calibration This topic has 1 reply, 2 voices, and was last updated 1 year, 7 months ago by Sean Robinson. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 8, 2023 at 12:13 pm #2457 loveabParticipant I was able to calibrate 4 days ago, but upon recalibation today, I received the following message: Caught exception GLExtensionManager: ExtnesionGL_EXT_gpu_shader4 not supported by local OpenGL while initializing rendering windows Thanks for any advice. February 10, 2023 at 6:52 am #2460 Sean RobinsonParticipant Did a software update occur between calibrations? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In