standard materials produced in Unity for Cardboard and Gear VR producing flickering

Question

In the image below the green material is a standard material while the surrounding objects have a VertexLit applied.

Any suggestions regarding what materials are best for Mobile VR?

Answer 1

best material for mobile (popular mobiles) is vertexlight mats but if your application don't have up to 200k vertex and heavy animations dont worry for material you can use most of glsl or cgprogram feature your owned material

if your problem is with changing color of material after publishing your game for VR for textured material select TrueColer in texture properties for colored material go to lighting setting and change ambient light to gray without any colore like it ( R=30,G=30,B=30)