LuxRender Windows CVS build of 23-11-2009

[Lord Crc]

Since SATtva made such a nice weekly for Linux, I thought I should follow up for Windows. I'll just defer to his excellent writeup here.

Unfortunately I haven't had time to compile Qt in my build VM yet, so the Qt version is not included. Also I didn't have time to make builds from the Rendering Hints branch.

Since I'm a day late the following bug was fixed in addition to SATtva's list.

Code: Select all

12 hours ago   David Bucciarelli    Fixed BUG 608: Paused local renders receive films from slaves yet never auto-save

Updated LuxBlend in the zips. Make sure you grab the correct version for your architecture.

[Oardinator]

Thanks for the Windows build!

[psor]

Thank you Lord Crc!



take care
psor

[pinko]

Tnx!!!
ciao
Luca.

[MikeJ]

Are IES files working with this build? My brief test seemed to indicate that the spotlight I have using an IES file was totally blown out and not using the profile in the IES file.

Mike

[Dade]

Are IES files working with this build? My brief test seemed to indicate that the spotlight I have using an IES file was totally blown out and not using the profile in the IES file.

IES profiles are supposed to be used with point lights, not with spot lights. Luxrender will ignore any IES file attached to a spotlight and report a warning. If Luxblend allowed you to use a IES profile for a spot light, it is a bug.

[MikeJ]

IES profiles are supposed to be used with point lights, not with spot lights. Luxrender will ignore any IES file attached to a spotlight and report a warning. If Luxblend allowed you to use a IES profile for a spot light, it is a bug.

I need to offer some clarification: I did not use the proper term. My "spotlight" is a mesh light comprised of a single plane that has an IES file applied to it to give it the profile of a spotlight. When I rendered my scene with the new builds this light blasted light everywhere and seemed to ignore the profile dictated by the IES file. When I went back to my original build it behaved normally again, appearing to follow the dictates of the IES file profile.

Your post however has spurred a couple of questions: I thought spotlights were point lights. My understanding of the spotlights that you can create in Blender is that they are the same basic point light as a regular lamp. It's just that they can be pointed and controlled more efficiently. Is that not correct?

Mike

[jeanphi]

Hi,

Regarding the IES issue, do you have any message in the log indicating that something could have gone wrong?
Regarding "spot" lights, yes they are punctual lights, but they are a different kind of light source than "point" lights. The geometry is the only thing they share.

Jeanphi

[Dade]

Your post however has spurred a couple of questions: I thought spotlights were point lights.

To clarify the different terminology used between Blender and Lux: Blender's Lamp = Lux's point light, Blender's spot light = Lux's spot light.

IES maps have some limitation (some coming from IES itself, some coming from Lux's implementation):

1) IES maps can be correctly used only on point lights/lamps;
2) you have to use Path integrator because BiDir doesn't yet support IES.

[jeanphi]

Hi,

Bidir supports IES lamps too, but I think the point light implementation has some issues with bidir, that might be why it produces different results with point lights. Last time I tried IES area lights, bidir gave the same result than path.

Jeanphi