Problems With Tree Lighting

Development Rendering
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1

After building lighting I am getting some wierd shadows.

16563-treeleaves.png

My leaf material is masked and two sided.

16564-treeleaves1.png

2

Could it be a problem with your light maps?

3

Hey ChaseK -

I believe Breakobs may be correct can you post a screenshot of you UV1 unwrap?

Thank You

Eric Ketchum

4

This is the screenshot of it in blender.

16697-uv1.png
16697-uv1.png129×560 1.66 KB

5

I duplicate the same tree over 5 times… different lighting results, I get no errors or warnings.

16698-trees.png
16698-trees.png793×402 454 KB

6

And here’s the fbx file if you want it.

7

Hey ChaseK -

The “Black Smudges” are generated by a lack of a correct lightmap unwrap. Here is your FBX opened up in Max so I can look at the UV0 Channel, which is what the Textures use to apply materials, and UV1, which is what the Lightmass will use to bake the lighting:

UV0:

16755-uv+channel+1.png
16755-uv+channel+1.png277×617 1.95 KB

UV1:

16756-uv+channel+2.png
16756-uv+channel+2.png568×596 6.45 KB

Take a look at UDK: Lightmapping Basics and 18 Important Principles for Creating and Using Lightmaps for UDK, its a great primer on setting these up correctly.

Thank You

Eric Ketchum

8

Thanks for the help I will look into that