Author Topic: lightmaps: how to use it in lumion ?  (Read 5779 times)

gonzohot

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lightmaps: how to use it in lumion ?
« on: January 12, 2011, 10:10:03 am »
January 12, 2011, 10:10:03 am
Hi !

I've modeled a cornell box and generated a lightmap (diffuse and lightning separately baked) and i'm now trying to use it in lumion.

I'm using the original texture slot and I succefully put the baked texture to have a pre-rendered diffuse texture. But how do i self-illuminate my cornell box to achieve a illuminated night render such as the one showed up in the material tutorial ? (I've tried to put the ligtmap in the second texture slot but unsuccefully: still dark when turning sunlight off...).

 

Can you please detail how to use lightmaps or tell me what i'm doing wrong ?

thanx !

lightmaps: how to use it in lumion ?
« Reply #1 on: January 12, 2011, 04:05:04 pm »
January 12, 2011, 04:05:04 pm
We are preparing improvements to Lumion ligtmaps. To make it easier and more powerfull. It will be available in Lumion Update 1 final.

Then I'll put tutorial on forum too.

lightmaps: how to use it in lumion ?
« Reply #2 on: January 13, 2011, 10:27:50 am »
January 13, 2011, 10:27:50 am
Currently when you use the Lightmap material the light is treated as another light so the Lightmap is added to the sunlight and they both illuminate the underlying material. This material is shortly covered in the materials tutorial (http://lumion3d.com/tutorials) at 7:00.

 

A future addition will allow you to use a light map as a pre-baked ambient occlusion by giving you the ability to multiply the material by the light map value.