Lines Matching refs:fog

32     This extension allows specifying an explicit per-vertex fog
33     coordinate to be used in fog computations, rather than using a
34     fragment depth-based fog equation.
38   * Should the specified value be used directly as the fog weighting
39     factor, or in place of the z input to the fog equations?
60   * Interpolation of the fog coordinate may be perspective-correct or
68   * Should the current fog coordinate be queryable?
72   * Control the fog coordinate source via an Enable instead of a fog
77   * Should the fog coordinate be restricted to non-negative values?
89         fog.
126   These changes describe a new current state type, the fog coordinate,
133         current color, and current fog coordinate may be used in
140         colors, normal coordinates, texture coordinates, and fog
147         "   The current fog coodinate is set using
156         the current fog coordinate, four floating-point values to store
161         initial value of q is one. The initial fog coordinate is zero.
166   - (2.8, p. 21) Added fog coordinate command for vertex arrays:
177         arrays: one each to store edge flags, texture coordinates, fog
202         coordinate, fog coordinate, color, color index, normal, or
216         commands for the edge flag, texture coordinate, fog coordinate,
221     Change pseudocode on p. 27 to disable fog coordinate array for
234   - (2.12, p. 41) Add fog coordinate to the current rasterpos state.
240         w_c value, an eye coordinate distance, a fog coordinate, a valid
249         distance, and its fog coordinate, a single valid bit, a color
252         texture coordinates are both (0,0,0,1), the fog coordinate is 0,
268         If the fog source (as defined below) is FRAGMENT_DEPTH_EXT, then
270         coordinates, to the fragment center. If the fog source is
271         FOG_COORDINATE_EXT, then c is the interpolated value of the fog
272         coordinate for this fragment. The equation and the fog source,
281         respectively, is selected for the fog calculation (if, when 3.26
293         "The state required for fog consists of a three valued integer
294         to select the fog equation, three floating-point values d, e,
295         and s, an RGBA fog color and a fog color index, a two-valued
296         integer to select the fog coordinate source, and a single bit to
297         indicate whether or not fog is enabled. In the initial state,
298         fog is disabled, FOG_COORDINATE_SOURCE_EXT is
357                                         GetFloatv                       fog coordinate
363 …FOG_COORDINATE_ARRAY_TYPE_EXT       Z8      GetIntegerv     FLOAT           Type of fog coordinate…
364 …FOG_COORDINATE_ARRAY_STRIDE_EXT     Z+      GetIntegerv     0               Stride between fog coo…
365 …FOG_COORDINATE_ARRAY_POINTER_EXT    Y       GetPointerv     0               Pointer to the fog coo…
371 …FOG_COORDINATE_SOURCE_EXT   Z2      GetIntegerv,    FRAGMENT_DEPTH_EXT  Source of fog   3.10    fog
373                                                                             fog calculation