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gallium/docs: default Z texture tuple is (z,z,z,1) for OpenGL

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Brian Paul
2010-02-02 16:27:07 -07:00
parent 3a3d8fb72e
commit 3e572eb25e
1 changed files with 3 additions and 3 deletions
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src/gallium/docs/source/tgsi.rst
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@@ -1473,10 +1473,10 @@ For reference, OpenGL and Direct3D conventions are shown as well.
| UV | XXX TBD | (0, 0, 0, 1) | (u, v, 1, 1) |
| | | [#envmap-bumpmap]_ | |
+--------------------+--------------+--------------------+--------------+
| Z | XXX TBD | (z, z, z, z) | (0, z, 0, 1) |
| Z | XXX TBD | (z, z, z, 1) | (0, z, 0, 1) |
| | | [#depth-tex-mode]_ | |
+--------------------+--------------+--------------------+--------------+
.. [#envmap-bumpmap] http://www.opengl.org/registry/specs/ATI/envmap_bumpmap.txt
.. [#depth-tex-mode] Z may be (z, z, z, 1) or (0, 0, 0, z) also; it changes
depending on GL_DEPTH_TEXTURE_MODE state.
.. [#depth-tex-mode] the default is (z, z, z, 1) but may also be (0, 0, 0, z)
or (z, z, z, z) depending on the value of GL_DEPTH_TEXTURE_MODE.