Problem with normal maps/bump and GPU/OPENCL

[Nikonathon]

The problem is the following:
Normal maps break the material in the render, the same goes for bumps.
This only happens with gpu.
On cpu the materials work fine.

GPU:
https://drive.google.com/file/d/15cI2qL ... sp=sharing

CPU:
https://drive.google.com/file/d/1x6DKHi ... sp=sharing

My specs:
intel i5 3330 3ghz
amd rx470
8gb ram
Win 10
Blender 2.83.4 and 2.82
luxcore 2.4

[Dade]

As far as I know, it is a AMD driver bug: https://github.com/LuxCoreRender/BlendL ... issues/530

Because the same code works fine on:

- Intel OpenCL CPU
- NVIDIA OpenCL
- NVIDIA CUDA
- NVIDIA CUDA+Optix