[SOLVED] 2 sided texture issue

[Rob]

Im trying to create a bush with a texture with an alpha mask

but as soon as I set the material to 2 sided it is being lit up all wrong

I get all sorts of dark patches of the dry grass

 

In the screenshot you can see on the left what I want to achieve only problem is that it isnt 2 sided so im missing alot of planes

On the right you see the issue im having when I enable 2-sided

 

So what am I doing wrong here? Im sure im just missing something

[pluton]

Could you attach a bush mesh together with its material files (or send it at support@unigine.com in case you do not wish to publish them here)?

[Rob]

Here you go

DryGrass.rar

[Rob]

Any update on this?

[binstream]

Andrey (pluton) is on the vacation until July, 2nd so I guess he will not respond until that time. Redirected to our CTO.

[frustum]

Don't rotate tangent basis this way. Your mesh normal directs up. Engine mirrors normal when 2-sided option is enabled. So your mirrored normal directs down and you have a wrong shading as result. Use mesh_leaf_base material for the bushes.

[Rob]

Don't rotate tangent basis this way. Your mesh normal directs up. Engine mirrors normal when 2-sided option is enabled. So your mirrored normal directs down and you have a wrong shading as result. Use mesh_leaf_base material for the bushes.

 

Ah oke thanks for explaining! Will use mesh_leaf base then