Lines Matching refs:sprite

32     Rendering sprite geometry requires applying a transformation to
40     sprite mode:
70     sprite position.
123     current sprite mode, axis, translation and the ModelView matrix
124     are used to generate a sprite transformation which is applied to 
127     When the sprite mode is SPRITE_AXIAL_SGIX, the sprite transformation
128     is arranged such that, after sprite and ModelView transformation,
132     Each primitive is first rotated so that the sprite up vector aligns
133     with the sprite axis which is specified in the current model view
140     required for sprite geometry:
143 	T - sprite translation matrix
144 	A - sprite axis rotation matrix
145 	R - sprite up vector/axis alignment rotation matrix
153     Given the coordinates of SPRITE_TRANSLATION_SGIX the sprite translation 
155     by computing an angle of rotation and the sprite axis (computing sine and 
167     V0 is the canonical up vector. V1 is the sprite axis (SPRITE_AXIS_SGIX)
169     and the SPRITE_EYE_ALIGNED_SGIX modes V1 is the sprite axis aligned by 
190     Normals associated with sprite geometry are transformed by the inverse 
198     When the sprite mode is SPRITE_OBJECT_ALIGN or SPRITE_EYE_ALIGN,
199     the sprite transformation rotates the front vector towards the eye
201     current sprite axis, i.e. the up vector is rotated to be parallel
202     to the projection of the current sprite axis into the plane
204     sprite mode, the sprite axis is taken to be expressed in object
209     Regardless of the sprite transformation mode, the projection matrix 
211     user against overriding the sprite transformation.