[Bug 45468] Phase Shift: tails on sustain notes not visible unless GLSL is disabled

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45468

--- Comment #6 from Henri Verbeet <hverbeet at gmail.com> ---
(In reply to Andy Clayton from comment #5)
> I am just picking gl and d3d up again so I have to do some more reading and
> experiments to have a guess at what is going on with ffp_varying_diffuse's
> alpha. Or if you have any more insights to share that would also be great. I
> have been meaning to attach logs but need to cut them down to a reasonable
> size without losing anything important.
> 
With GLSL disabled, you should be getting ARB_fragment_program shaders for FFP
(fragment) emulation. Those should be equivalent to the GLSL code, but it may
make sense to explicitly verify that.

We do use fixed-function vertex processing with GLSL disabled. The code for
setting that up is select_vertex_implementation(),
select_fragment_implementation() and select_shader_backend(). It should be
possible to use fixed-function vertex processing together with the GLSL shader
backend by returning "&ffp_vertex_pipe" in select_vertex_implementation(). It
may be worth giving that a try, but note that that combination hasn't been used
for several years now; it may not work at all anymore.

ffp_material.diffuse ultimately comes from the current material, set by
wined3d_device_set_material(). It's probably also a good idea to check the
ambient and emissive light and material values, particularly the alpha values.
Alpha is usually set to 0.0f for those, but I'm not entirely confident we
handle non-zero alpha values correctly there.

-- 
Do not reply to this email, post in Bugzilla using the
above URL to reply.
You are receiving this mail because:
You are watching all bug changes.