Help needed with my plant made of alpha cards?

Danface

Hey, 

So I just finished making a plant and looking through the foliage section in the wiki, I followed the custom vertex normals technique but due to you being able to see through the tree, there is inevitably going to be the other side of leaves you're going to see. Am I doing this right and/or is there a way to have both side of the alpha card be lit?

poopipe

Most modern engines will light both sides independently. As will the maya viewport if you turn on 2sided lighting. 

Danface

The lit picture is from marmoset, is there any way to enable two sided lighting?

Eric Chadwick

Most engines will create new vertex normals for the new backfaces, when you enable 2-sided rendering.

If you want to edit the vertex normals, you should duplicate & flip the polygons manually, before editing the normals, and not use 2-sided.

Danface

Eric Chadwick said:

Most engines will create new vertex normals for the new backfaces, when you enable 2-sided rendering.

If you want to edit the vertex normals, you should duplicate & flip the polygons manually, before editing the normals, and not use 2-sided.

Wouldn’t that double the poly count?

ZacD

2-sided rendering doubles the polycount anyway. Rendering more polygons is never free.