Title: Difficulties with Dynamic Fog Post by: MarkJayBee on May 01, 2011, 02:11:48 PM Well, I've tried everything I can think of to sort this - and I hate
'throwing in the towel' - but since the introduction of the second colour Dynamic Fog feature in v1.67.6 I've been unable to achieve that outer glow effect that DF was so useful for. :sad1: The glow effect is certainly there in all 'preview' size images, but after rendering at 'high' - my preference is 4000x2000 - the DF just becomes almost another amorphous 'fog' effect. This is really frustrating, as I use DF to add that final finish to my pieces, and very much miss it! Maybe I'm doing something wrong, but I can't think what - anyway, I've attached 2 example images, and also the image params, and hope somebody can offer a solution? Mandelbulb3Dv16{ O.....u1...o5...w....2E...U.zgjW/tDyziJ3TcEGQkxDSGksTOeoPzvqB5l07Hc..bpefGjn0Tzj ................................XJKa1/ND5/2........Y./..................y.2..... .................M.2/....6EH1...s0....E......QsV1DILIYlD/MEKdJ9E.....pAnAr1..... .lkyqH8D/.../2...................................................y1...sD...../.. .wX0LD0Dq4v0Kk5nMw1/U1ST3OvqyYrfnR8v7eijmz4hX8VPvu950xY0SNq3zU.EPaUz46kDhJdFzqQj hvXUM2rVANP.zihoEoFseQlD......om9...iG................sD..E..................... .............................ULRa4.2qNO.cObd/.oRa4.qrNO.kVbd/UESa4.............. ................yzzzzHHKb/EN.Y5.3/...I3....I....f/...M0...k8....n....wH4....aL22 .UrTzRYN50kBzo7.YoGB.I4UIy562c..yrxe.EmYEkti4xyD5Got8VlJqy1..........20A8.EMQx6. todIWOorVyPCR8Zc4xRcz............EW0.k3NI0kKilEhAIrpzaHbG7eFT5uD..........E.lc.. zzzz.................................2U.8.kzzzD................................. /6U0.wzzz1...................................Qm5K0.sU06.P3/PrV8.DXRo.Ys9JS5O.wiw g0Um7Ryjq/knM5B.euJsla3.w8OV.2ORbzfR.wAqF1EhqRyjq/knM5B.RTrtzO5.DXRo.UHSbzfR.wAq F1EKwRyjq/knM5B...k7TM7.eem6ydB.IJptzO5.szrtzO5................................. E....I....E.....I....k....EHZtqNZ7rGjB4OK71.jR5...........................U/4MU/ 4M.................yz.........zD..........E4JJJJJJJpz........................... ..............................................zD................................ .....................2.....3..../....oIMiFKNgF1F0ZqE............................ .....MU/4MU/4.............................2........../.........E..........2..... ................................................................................ ................................/....E/....1....HZKNm/5GdlaMZ75R................ ................4MU/4MU/........BnAnAnAnoz1........wz.........zD........kz1..... ...................................................................../........zD ..........................................E.....I....I....EE0x4SK3aQtBpMVlKN.... ......................k/............................./........yD........kz1..... ..............zD................................................................ .....................................................2.....3..../....wZQZBKOk7rP X34PO71.......................................................yD................ ................................................................................ ................................................................} Title: Re: Difficulties with Dynamic Fog Post by: Jesse on May 01, 2011, 03:43:26 PM The answer is easy: A stepwidth limiter of 0.01 makes all steps nearly the same size, and knowing that the dynamic fog is based on the count of steps til the object is reached, this leads unfortunately to an amorphous fog.
Not sure if there could be a kind of trick to come around this, beside increasing the dynamic fog and adjusting the offsets to remove the strong global gradients. Title: Re: Difficulties with Dynamic Fog Post by: MarkJayBee on May 01, 2011, 03:57:33 PM So, it basically comes down to a trade off between noise reduction
and DF effectiveness. Think I can live with that - just need to consider the SWL settings for the formula types I'm using a little more in future. Thanks for the swift response Jesse! :beer: Title: Re: Difficulties with Dynamic Fog Post by: lenord on May 01, 2011, 04:43:08 PM Yeah, I noticed that right off too MJB, I found a good trade off point is around a SWL of .1 and .25. You still get good clean renders for the most part and the DF seems effective for filling in and highlighting.
Title: Re: Difficulties with Dynamic Fog Post by: MarkJayBee on May 01, 2011, 06:39:29 PM Cheers Len! Glad to hear I'm not the only one who noticed this - got one re-cooking now with new settings - so hopefully I can get some good ol' glows back in my stuff! :dink: |