Hello all ! I have noticed differences between vray RT GPU and CPU when rendering bump maps : it seems bumps are somewhat stronger with CPU. What is the reason for this ? I am using vray RT 2.0 SP3 and have set bitmap size to maximum. I wish both would be the same, because GPU is a lot faster, bu…

The CPU engine uses filtering for the bitmaps. On the other hand, the GPU always uses unfiltered textures. This may lead to differences in the bump mapping. Best regards, Vlado

Thank you for that quick answer !! You’re right, the filtering is the difference, it also appears when using the bitmaps as diffuse maps. Is there a way to let CPU render use the same filtering as GPU ? That would be perfect for me. I tried playing with the bitmap filter settings (filter type and …

Mm, that still doesn’t match… but I guess this is the best I’ll get for now. Thanks a lot for your answers !

Difference between Vray RT GPU and CPU when rendering bump maps

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vlado May 25, 2012, 11:10pm 4

You could try setting the blur amount to a really small value.

Best regards,
Vlado

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Difference between Vray RT GPU and CPU when rendering bump maps

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