vrsys/guacamole — pull request #67 by 4og (2014-06-24 15:51:24+00:00)
Title: Fix skymap seam problem 

The seam appears due to discontinuities in spherical mapping, which can be fixed by calculating partial derivatives explicitly. Proposed solution is not the best because it doesn't take into account curvature (may deteriorate anisotropic texture filtering), but the result looks quite decent.