Michał Król wrote:
Hello, I am planning to enable ARB_vertex_shader in Mesa.FWIU, I must add a new stage in the tnl module.Done, dont see the results.Added conditions in other stages that are replacedby vertex shaders. Still I see black screen.
Is your code being run? Try running gdb, breaking in _tnl_run_pipeline and stepping through the code to see what's happening.
What other source files, besides t_vb_*.c, shouldI be aware of to have vertex shader running?
As long as the new stage is in the pipeline, that should be enough (for tnl).
Also, I am not sure with the tnl attrib indexes.What is the diferrence between VERT_ATTRIB_*,VERT_RESULT_ and _TNL_ATTRIB_* index flavours?Are the attrib indices generic and sharedamong all vertex-programming models?
The TNL_ATTRIB_* bits are a superset of VERT_ATTRIB bits and are used throughout the pipeline. The VERT_RESULT_ bits aren't really used except in the existing vertex-program stages, and they are translated away straight away. This should change so that mesa's pipeline better matches what is specified in the vertex and fragment program extensions.
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