[Bf-cycles] UV, not working well in OSL Script node

[Brecht Van Lommel]

The sphere looks correct to me. The u,v values here are like the
Parametric output in the Geometry node (barycentric coordinates in the
triangle), not a UV layer. If the plane has that material assigned too
that would be a problem, but otherwise don't see the bug.

For the UV layer though, there is a bit of a design issue here. Cycles
only exports mesh data layers when they are requested by the shader
(to save memory and export time). However for an arbitrary OSL shader
I don't know how to determine automatically if they need such
attributes.

Brecht.

On Tue, Oct 9, 2012 at 8:19 AM, Dalai Felinto <dfelinto at gmail.com> wrote:
> Hi there,
>
> I'm testing the OSL node (in lukas' branch) and I noticed that u,v is
> not getting the information from Blender.
> See file http://www.pasteall.org/blend/16845 or image:
> http://www.pasteall.org/pic/38655
>
> The test shader source is very simple:
> ####
> surface
> example_shader_1
> (
>     output closure color fora = 0
> )
> {
>     fora = color(u, v, 1.0) * emission();
> }
> ####
>
> Any clues on whether it's a todo in cycles, or something in the "OSL
> script" node implementation?
> Thanks,
> Dalai
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