Re: RayTrace bug is not in RayTrace but in Quesa, just nobody's noticed before.

[Roger H. <rog...@mi...>]

On 2 Jul, 2007, at 20:53, Roger Holmes wrote:

>
> Its not actually in RayTrace. If I put "return false ;" at the top
> of  e3geometry_cache_isvalid, then everything runs OK. So it seems
> there is a bug in Quesa's caching code which does not notice that the
> specular control has changed. Actually I can't see anything for
> things like the diffuse colour being changed either, so how do these
> work? Should Quesa check for the edit index of the geometry's
> attribute set? But then attributes can be in the group the geometry
> is in and in any group out from that. If someone can tell me how this
> works I can probably do the fix.


Sorry about replying to my own e-mails.

It cannot be as simple as it seems. Other renderers DO display  
different intensities when the matt/gloss/mirror slider in my app is  
dragged about, so I do not understand why RayShade doesn't.

Roger.