caustic help

[jackieteh]

I am have trying to do a caustic effect recently,
and here is the result,
but don't know why it look a lot of noise, not real and look bad.

someone please help me to firgure it out.
Thanks in advance. :)

[brentagain]

looks like the light isin`t emitting enough photons.Usually if you increase the number of photons then the caustic effect will increase in quality.I used to do a lot of caustics in Brazil and usually set the photons close to or above 1 million..but the render times will increase and the memory usage will increase dramatically.Also check samples ..according to what renderer you are using.

[jackieteh]

looks like the light isin`t emitting enough photons.Usually if you increase the number of photons then the caustic effect will increase in quality.I used to do a lot of caustics in Brazil and usually set the photons close to or above 1 million..but the render times will increase and the memory usage will increase dramatically.Also check samples ..according to what renderer you are using.
Thank you for your reply.

i will give it a try and post the final result here for your review.
and i am using vray renderer :)

[jackieteh]

here come another caustic render.

i have increase the photons amount to 1 million and increased the subdiv to 5000, it has incresed the caustic brightness by increasing the photons amount, but it is still not what i want actually.

i will post a photo reference in the next post, and hoping someone can give me some guide and advise, thanks in advance.:)

[jackieteh]

here is the reference picture i found from internet and i think it is the effect i am trying to make, you can see how smooth and clear is the caustic, hoping someone could give me some guide, thank you. :)

[Mr. Bluesummers-3DT]

Try increasing the photon size a bit?

[le1setreter]

hey jackie :wave:
sry, have been busy... here are the main aspects from your file. i will send you mine when we meet on msn. dont mind the texture and the water color but i dont like grey that much^^

[jackieteh]

yeah!!! le1setreter, you are great!!!!
this is the result i really want, please send me the file, thank you very much.

i wonder how you attached the sticker exactly fit to the bottle, you could check mine, the sticker got some problem,you can see it in my 2nd image posted in here, the sticker got some transparent at the bottom of the cap, i guess may be i didnt add shell to my bottle, so the sticker cannot fit like yours ????please check.

you are very helpful.

[jackieteh]

i have follow the method given by le1setreter, the caustic has improve a lot, but still got some experiement to make it more better.beside the vita paw label still don't know how to attach it right.

thank you very much to all of you.:)