3 commits

Author	SHA1	Message	Date
Matthew Waters	675415bf2e	gl: try to use highp precision where supported ... The use of mediump as a specifier in GLSL shaders will have limited resolution and when used as texture coordinates may become inaccurate over texture sizes of 1024.	2019-02-28 17:26:32 +11:00
Matthew Waters	6f04c3ac87	glalpha: fix compilation with msvc ... It doesn't define M_PI	2018-06-07 14:23:55 +10:00
Matthew Waters	af5b0ee7d0	gl: add glalpha element that is similar to the alpha element ... It performs similarly to the existing alpha element however performs calculations in floating point rather than with small (guint8) integers so some differences are to be expected. https://bugzilla.gnome.org/show_bug.cgi?id=794070	2018-05-05 21:24:25 +10:00