my last image loaded

[mike makki]

There is something not quite right , i have rendered the last image load for 500passes...

i have discovered there is white pixels appearing in the chrome finish.My question is that normal and how do we come over the problem.

mike

[mike makki]

guys guys guys...slateis a natural element  .....so no gloss finish

[Peter Milner]

If it's natural slate then it will definitely have a sheen to it (see attached photos).

[Ros. Riha]

thanks for samples, peter .... actually, almost all materials do possess certain level of reflectivity ... there was some discussion a while ago, where roy posted quite useful pdf, made by a lighting manufacturer (i believe) where were discussed reflectivities of white matte paint, rough cconcrete etc... to me it seems worth it to add at least small amount to almost any material

[mike makki]

The man is not for turning....:))))

[Jorge Javier Lara Domínguez]

Peter que configuracion minima de brillo necesitan los materiales? seguntu experiencia?

[Peter Milner]

For this type of floor I would suggest trying the following as a starting point:

Intensity - 0.15

Sharpnes - 0.1

Fresnel - 0.7

[Roy Hirshkowitz]

This type of artifact is not unexpected from small bright sources reflected in a "near-specular" surface.  It is a limitation of the rendering algorithm.  The Path Tracer will probably do a better job with this, although if the light path bounces on the mirror cylinder before striking the source it may consider this a caustic path and exclude it.  Post-processing with PhotoShop or eq. (like you did) is probably your best bet.