Lines Matching refs:fog

26     to fog computation. A reference point in eye space (rx ry rz) and an offset
27     amount toward the viewpoint (f_o) are specified. When fog offset is
31     If fog computation is done in screen-space coordinates under
33     fog offset to be correct for fragments whose depth is close to that
36     projection, or if fog computation is done in eye-space coordinates,
76 	z. If f_z < 0, then it is clamped to zero prior to fog
79 	"If fog offset is performed in screen space under perspective
99 	"The state required for fog consists of a three valued integer
100 	to select the fog equation, three floating-point values d, e,
101 	and s, four floating-point values (rx ry rz f_o), an RGBA fog
102 	color and a fog color index, a single bit to indicate whether or
103 	not fog is enabled, and a single bit to indicate whether or not
104 	fog offset is enabled. In the initial state, fog is disabled,
105 	fog offset is disabled, FOG_MODE is EXP, d = 1.0, e = 1.0, s =
137     FOG_OFFSET_SGIX	    B	    IsEnabled	    False	    True if fog offset is enabled   3.10    fog
138 …FSET_VALUE_SGIX   4 * R   GetFloatv	    (0, 0, 0, 0)    Fog reference point and offset  3.10    fog