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* fix [2133133] Software OpenGL ES Lighting is buggy (GL Gears washed out bug)Mathias Agopian2010-02-031-10/+39
| | | | | | | | | | A typo caused GL_AMBIENT_AND_DIFFUSE to only set the the ambient color. Fix another typo which caused the viewer position to be wrong for specular highlights. Switch back to eye-space lighting, since there are still some issues with some demos (San Angeles in particular).
* fix [2231527] Compatibility with SpaceJunk game (OpenGL)Mathias Agopian2009-11-021-7/+6
| | | | | we treated all lights as local lights when transforming their position back to object space.
* If FLAGS_2D_PROJECTION is set, the MVP matrices need updating when changing ↵Martin Storsjo2009-08-251-0/+2
| | | | the viewport.
* fix [1610840] Positional light doesn't work correctly on emulatorMathias Agopian2009-06-031-62/+21
| | | | | | | | This bug was introduced when lighting computations was changed from eye-space to object-space. The light position need to be transformed back to object-space each time the modelview matrix changes which requires us to compute the inverse of the modelview matrix. This computation was done with the assumption that normals where transformed (which was the case when the computation was made in eye-space), however, normals only require the inverse of the upper 3x3 matrix while transforming positions requires the inverse of the whole matrix. This caused the interesting behavior that lights were more-or-less transformed properly, but not translated at all, which caused improper lighting with directional lights in particular. There was also another smaller bug affecting directional lights: when vertices are read, only the active component are read, the other ones are ignored, later, the transformation operations are set up to ignore the unset values, howver, in the case of lighting, we use the vertex in object space (that is, before it is transformed), and therefore were using uninitalized values; in particular w.
* auto import from //depot/cupcake/@135843The Android Open Source Project2009-03-031-0/+1145
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* auto import from //depot/cupcake/@135843The Android Open Source Project2009-03-031-1145/+0
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* Code drop from //branches/cupcake/...@124589The Android Open Source Project2008-12-171-2/+3
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* Initial ContributionThe Android Open Source Project2008-10-211-0/+1144