diffrent results in vray RT gpu

[khoross]

Hi i started a small simple scene ,with one small vray plane light & a basic gray materials . & i was getting very diffrent results in Rt gpu mode than in cpu & final render.
after testing diffrent light source bigger vray light plane , rt gpu & cpu & final render were the same .
could it be a bug ?

[vlado]

It sounds like a bug. Can you attach the scene?

Best regards,
Vlado

[khoross]

Hi Vlado this the file


-scene.zip

[vlado]

Thanks; it seems to be because of the negative scaling of the light. Will make a note to fix this, but in the meantime, just make sure the scale on the light is +100 (you can rotate it to flip it over).

Best regards,
Vlado

[vlado]

If I scale the light positive and rotate it, I get the same result on the CPU and GPU (as production renderer so that I can use the light cache too).

Best regards,
Vlado

[khoross]

thank's for your quick reply , it's working well now i understood what went wrong