Simulating Dark Adaptation 2003-12-09 - By Hoehne, Brad
Back I just thought of another way of doing this. Render the scene twice, at two different sets of light levels- one bright, one dim- then blend the two together, as needed, to take care of this issue. Brad H.
> -- ---- -- > From: Llaszlo Kiss > Reply To: maya@(protected) > Sent: Monday, December 8, 2003 9:15 PM > To: maya@(protected) > Subject: Re: Simulating Dark Adaptation > > This might be too simple: > Put a plane in front of your camera, give it a white, > fully transparent lambert, add some glow intensity, > hide source, play around with the incandescence (you > could even map it with some noisy ramp) and your halo > settings. This is for the overlit/burnt out effect, if > you want to make it dim, don't hide the source, use > black for incand. and lower the transparency. Does > this help? > > ll > --- "Hoehne, Brad" <HoehneB@(protected)> wrote: > > Does anyone know of a way to simulate the dark > > adaptation of the > > human eye? I have a scene in which the glow of a > > very bright light is > > masked out by an object and then the brightness > > level of the entire scene > > goes up due to the dark adaptation of the > > character's eyes revaling objects > > formerly too faint to see. I am now doing this by > > keying a slow increase of > > all the lights in the scene, but this is > > unsatisfactory for some purposes. > > Is there any way to change the "sensitvity" of a > > camera in much the same way > > that one would open up the f/stop on a camera to > > gather more light? Perhaps > > one could use some mel script to multiply the output > > individual pixels by > > some keyed number? I have no idea how to do this... > > Any ideas? > > > > Brad H. > > > > > Confidentiality Notice: This e-mail message, from Children's Hospital, Columbus, Ohio, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. The recipient is responsible to maintain the confidentiality of this information and to use the information only for authorized purposes pursuant to Children's Hospital's confidentiality policies. If you are not the intended recipient (or authorized to receive information for the intended recipient), you are hereby notified that any review, use, disclosure, distribution, copying, printing, or action taken in reliance on the contents of this e-mail is strictly prohibited. If you have received this communication in error, please notify us immediately by reply e-mail and destroy all copies of the original message. Thank you.
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