What-you-see-is-not-what-you-get-myopia Description - Spending lots of time in the materials lab trying to tweek a mat to get just the right look. When finally after much pain and sorrow and grinding of teeth you think you have it nailed just right and exit the material lab returning to the scene window, do a quick render, and find that the texture looks nothing like what you slaved and sweated for in the mat lab.