Mention support for cube map / sphere map tex gen modes in 1.10.14

Author: rdb

programming/shaders/shader-generator.rst

@@ -125,14 +125,10 @@ what's supported:
 -  1D, 2D, 3D, cube textures
 -  most texture stage and combine modes
 -  light ramps (for cartoon shading)
--  some texgen modes
+-  most texgen modes (sphere / cube map modes require Panda3D 1.10.14)
 -  texmatrix
 -  fog
 
-Here's what's known to be missing:
-
--  "cube map" and "sphere map" texgen modes
-
 Note that although vertex colors are supported by the ShaderGenerator, in order
 to render vertex colors you need to apply a :meth:`.ColorAttrib.make_vertex()`
 attrib to the render state. One easy way to do this is to call