[Bug 39057] Support for Indexed Vertex Blending
wine-bugs at winehq.org
wine-bugs at winehq.org
Thu Nov 26 08:03:34 CST 2015
https://bugs.winehq.org/show_bug.cgi?id=39057
--- Comment #50 from swswine at gmail.com ---
(In reply to gamiljydcome from comment #49)
> So is there anyway change glsl code to make "uniform
> ffp_modelview_matrix[256]" could communicate with vao/vbo or it's not
> possible?
>
It is clearly not possible. "V" in VAO/VBO stands for Vertex. OpenGL < 3.1 can
use buffers for per vertex data and not for uniforms (which stand for the
values used by shaders which are common for all vertexes). The meaning of
ARB_UNIFORM_BUFFER_OBJECT extension is to allow buffers to be used for
uniforms. No such extension, no buffers for uniforms: just plain uniforms with
accompanying limits. Those limits are not as bad as 256 though, even for your
rather old card it is 4096 as we found out.
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