Commit Graph

13 Commits

Author SHA1 Message Date
Mathias Agopian
69ca17a124 fix [1610840] Positional light doesn't work correctly on emulator
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.
2009-06-03 15:09:52 -07:00
Mathias Agopian
50aba6d31d fix a bug in GL lighting where the specular component could be ommited when vertex material was disabled.
the specular enable flag wasn't computed in that case.
2009-06-02 22:51:09 -07:00
Mathias Agopian
48685c45bb only export the GL entry-points, hide everything else.
Conflicts:

	opengl/libagl/Android.mk
	opengl/libs/Android.mk
	opengl/libs/egl_impl.h
2009-05-08 15:23:38 -07:00
Mathias Agopian
53238bddea integrate some OpenGL ES changes back from master_gl in preparation of opening GLES to the NDK. 2009-04-23 13:45:48 -07:00
Jack Palevich
87d80228cc Automated import from //branches/donutburger/...@142484,142484 2009-03-24 22:48:26 -07:00
The Android Open Source Project
edbf3b6af7 auto import from //depot/cupcake/@135843 2009-03-03 19:31:44 -08:00
The Android Open Source Project
d5193d9394 auto import from //depot/cupcake/@135843 2009-03-03 18:28:45 -08:00
The Android Open Source Project
43aa2b1cbf auto import from //depot/cupcake/@132589 2009-03-03 14:04:24 -08:00
The Android Open Source Project
0bb03408de auto import from //depot/cupcake/@137055 2009-03-02 22:54:33 -08:00
The Android Open Source Project
a6938bab1f auto import from //branches/cupcake/...@130745 2009-02-10 15:44:00 -08:00
The Android Open Source Project
8a7a67538a auto import from //branches/cupcake/...@126645 2009-01-15 16:12:10 -08:00
The Android Open Source Project
e09fd9e819 Code drop from //branches/cupcake/...@124589 2008-12-17 18:05:43 -08:00
The Android Open Source Project
7c1b96a165 Initial Contribution 2008-10-21 07:00:00 -07:00