so I figured out that displacement maps together with bump maps and reflection node create sort of Refraction effect, it render well very fast and faster that the real Refraction node but it is wrong way.. I hope CL get deeper into it and fix it by the next patch.. very important I think.

and btw.... now I tested only the displacement maps with the reflection node pluget into the ground surface and it don't work too.. the displacement map are just not correct again.. after the inverted shaders are fixed now we have another problem.

Cath

P.S Image above : displacement maps with reflection node change the surface to transparent.

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