Severi Salminen wrote:

> Warp wrote:
> 
>>   The blur trick uses normals as well, but it has a couple of advantages
>> compared to your suggested method:
>>
>>   - Your suggestion requires quite heavy antialiasing to look good.
> 
> 
> Yes, I thought this to be non-issue as I want to use quite heavy AA 
> normally. But for test renderings it will be an issue. And you are 
> correct that the heavy AA makes this otherwise fast method not so fast 
> afterall :(

If I may make an addition. If one DOES use heavy AA usually then the 
single bumps method produces, of course, a lot faster reflections. Using 
AA and many averaged textures slows thing down _a lot_! This depends 
also the amount of reflecting surfaces in final image: the more area 
there is, the faster the single bumps method will be. And I still think 
the averaging and creating randomly moved normals looks and feels very 
ugly in scene sources.

Newerthless, I strongly suggest that _both_ methods should be covered in 
Pov-FAQ and TAG-Pov-FAQ as both methods have distinct advantages and 
disadvantages depending on the actual situation. Would this be possible, 
Warp?

Severi S.

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