Hi!

How do I easily generate cubical environment maps without having to render 6 images with 6 different cameras seperately? I'd like to use the environmentmap as a reflectionpass for renderman.

Kind regards,


Phong

I just found the isixpack utitility!

Thanks a lot!


Phong

Or just put a null in the middle of your scene and attach these rendering parameters:

render_envmap
vm_samples
vm_picture
res_override

when you render your scene, an environment map will be automatically generated looking from the position of the null.

cheers,
Abdelkareem

To add to Abdelkareem's post, you can add these properties to any object to generate reflection maps and use those object-centric maps as reflection maps in the final render pass in stead of using raytracing. You need to have a shader that uses environment maps set up to take advantage of this.


If you render to .rat format you get the “cross” envmap generated automatically for you. Actually you get a .rat file with six rasters named Right Left Top Bottom Front Back. No need for isixpack.


-jeff

Hey cool, thanks a lot! You guys rock!
Where can I attach those properties? As a script probably?

Phong

Phong
Hey cool, thanks a lot! You guys rock!
Where can I attach those properties? As a script probably?

Phong

No script; it's actually really easy. In the parameters pane you'll notice a cog icon. In there you're looking for “edit rendering parameters”.

You'll notice all kinds of good stuff for both RenderMan and Mantra that you can drag & drop onto your object. If you like the parameters being there every time, you can select to “save as permanent defaults” from the same cog drop-down menu.

-Alan

ok, my environment direction image files get rendered when I hit render, but still there's no .rat file. So I need isixpack to convert those images to a .rat file, but I can't find it on osx leopard.