Grasses in my game seem to have grassShadow = true as default

Even using D.grassShadow(false) cant disable shadow on grass material with "Grass 3D" render technique

   

   

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And Grass 3D + Ambient Occlussion is ugly

   

Ah found it, I must assign Grass Object Class to the model, but AO problem still persist

For flat billboard like grass, please use "Grass" technique in material, and set vertex normals to point up (mesh editor\operations\align normals up) - this must be called several times)

Thank you! Grass technique + Vertex normal up solve problem completely! now my glass look perfect!