On Sunday 07 June 2009 2:05:41 pm Frank Richter wrote: > On what graphics cards is that extension supported? > DF16 is supported since the R300. It appears that float depth formats > are much younger, so it seems unlikely DF16 is actually a float format > internally.
Just to note, there is a much earlier depth-float format in GL, before the ARB or NV versions came out: http://www.opengl.org/registry/specs/EXT/wgl_depth_float.txt It seems its main purpose is increased precision over the non-linear range of the buffer values. Unfortunately, Wine doesn't implement this extension, as there is no GLX equivalent.