CompuServe Thread

#Gamma/PAR rendering

12 messages in this thread
#89238From: Don LandisMar 6, 1994 4:11 PM
Greg, J.E., JKJ : In regards to PAR rendering: What Gamma setting are you using? I have been using the same setting as the targa+ before which was 2.2 for file output but a recent project required a very black background and to achieve this I had to shut the gamma off. How do you feel about this?
#89278From: John EllisMar 6, 1994 7:55 PM
Don, I've got no problem with turning GAMMA off if the scene requires it. I've been using 1.8 just like before, same gorgeous results. 🙂 -JE
#89645From: krazy imagesMar 7, 1994 10:14 PM
According to the Matrox guys, 2.2 is better for video work and 1.8 for press work. That as a general rule, but you have to take in consideration other things like the state of your monitor(s), lighting conditions, etc… I have disabled the gamma in photostyler and I'm now working with the MGA color calibration feature, setting gamma to 1.8 and letting the KPCMS to do the rest of the work in styler. This has solve me a few things, since I couldn't get Gamma correction in Pagemaker, Painter and Corel. Maybe some Matrox MGA fan could point me for a compatible calibration probe for the MGA (but looking at Win4.0, it could be smarter to wait and see their implementation of the KPCMS). BTW, to all the MGA users here, Matrox has available NOW the supplemental PowerDrivers for all the MGA cards, including the rev2 chip. They include full support for Windows NT and OS/2, WinSqueeze and ColorCalibration for 3.1 and Dynaview drivers for Microstation. They are in the Matrox BBS. ana /krazy images
#89675From: John TissavaryMar 7, 1994 11:50 PM
I know lots of people say 2.2 for video, and that may be so on an RGB (multisync) monitor, but I have found that 1.8 file gamma is the best average for video. Otherwise stuff looks really hot and washed out. John Tissavary (La Luna cie)
#89697From: John EllisMar 8, 1994 1:01 AM
John, >> I know lots of people say 2.2 for video… but I have found 1.8 file gamma best average for video. << I just wrote Ana the same note. And I totally agree. 2.2 only works for really light scenes without much contrast. -JE
#89687From: John EllisMar 8, 1994 12:53 AM
Ms. Karina, THEORETICALLY 2.2 is better for video output. This conforms with linear output in NTSC. But it is my experience and considered opinion that 1.8 works better overall as 2.2 reduces the contrast relationship. This is for video output for those that are following this. (To ALL) Experiment with both and tell us what YOU think. For my style of animation I like it best, but 2.2 is technically correct. With 1.8 the look is cooler with better saturation, my preference. Technically this has no effect on legal output. So Ms. Karina you are now a Matrox fan. <g> Wonders never cease. -JE
#89924From: krazy imagesMar 8, 1994 7:07 PM
Hey Cassidy, I'm not a Matrox fan! My soul is sold and Truevision has the contract 🙂 And Kodak, and Digital, and my bank… <g>. Yes, I like this board a lot. It's great. It's impressive. It's awesome. I'm a fan of whatever serves me well and the MGA is doing an excellent work now. I love the InterCal calibration system and I will probably will buy a probe to complete my quest for perfect color accuracy (which is at 99%) ana /krazy images
#89946From: John EllisMar 8, 1994 8:54 PM
Hey Mata, >> Yes, I like this board a lot. << Yeah, I think maybe I go with an MGA II. That JT is a pretty good salesman too. <g> -JE
#89341From: Mar 7, 1994 1:30 AM
Don: We have been using Gamma of 2.2 for the PAR as well as the laser disk. On a dark rendering, we will drop it to 1.8, but we very seldom turn it off completely. How is the new HEX file with the 5 second pre-roll working for you? Greg Pyros
#89452From: Don LandisMar 7, 1994 11:04 AM
The new PAR.HEX file is no different. It's preroll is exactly 3.09 seconds, the same as the old PAR.HEX. The two files are different size but work the same. I also downloaded the new 1.8 ver of PAR.exe but haven't tested join yet. 2.0 should be out soon, right? they're running out of ver numbers. <G>
#89762From: David WhiteMar 8, 1994 9:10 AM
We just tested it here and it does pre roll 5 seconds. I will check to make sure that the right version is up on the board. You would need to re-run PARINIT to have it take effect.
#89799From: Don LandisMar 8, 1994 11:35 AM
>> You would need to re-run PARINIT to have it take effect. Now you tell me! GregP. didn't tell me this either. I'll have to go check it out right now. I'm back! Bingo! I ran PARINIT and it now works 5 sec. on the money. Thanks