* This allows 'partial' rows in the mesh viewer, if a vertex input element
references invalid/out of bounds data, but the others are fine (coming
from different streams).
* You can choose which component will be used as 'position' when rendering
vertex inputs. Helpful if a position component isn't auto-detected, or
if you want to render UV co-ordinates onto the screen.
* Instead of fixed TEXCOORD0/Color options for solid shading onto the mesh
you can choose a secondary column yourself.
* Also the solid shading options are available on vertex output meshes as
well as inputs.
* For vertex shader output only, we do the streamout as a point list and
render each vertex once then we can reuse the same(ish) index buffer and
topology as the original draw.
* For GS/DS out there will likely be some expansion of verts so we do the
same as we used to.
* This means when multiple fragments are writing to a pixel you can choose
precisely the one you want to debug, rather than the debugging always
running the approximately last fragment to pass
* This means that e.g. decimal separator will always be . and similar
effects, which avoids the need to have culture specific formatting or
special-case handling around CSV export etc.
For now this just acts like a really wide vector with N columns for the
array, but this could be improved in future if a better visualisation is
decided on.
baldurk