CompuServe Thread

#Lightwave 3D (3.5)

6 messages in this thread
#46611From: j. tad newberryApr 26, 1995 12:11 PM
anyone out there familiar with Lightwave 3D? I have two questions: 1) how do you convert PMS colors (used for print-graphics) to RGB colors? i've done the frame-grab thing, then used "pick" in TPaint, but I was hoping to be a bit more precise and to be able to tell my client that therese ARE his colors… 2) same client wants to show finished animation on a huge screen which is also 16 x 9 aspect ratio. i know about rendering in letterboxc but is there a format i can render in that will show FULL-SCREEN on a 16×9 screen, without squished black bands on the top and bottom, etc.? Newtek hasn't been much help, and I've got a note in to John Gross, but no reply yet..
#46630From: john bennettApr 27, 1995 12:00 AM
Tad, 1) Get a good PMS swatche book and it should give you the RGB equivelent #s to start with. Good Luck…… 2) LW 4.0 is supposd to render to 16/9 aspect ratio and others for movie stuff :^) Perhaps you can do the same with LW 3.5 by just setting the Custom render settings. You could always just render to High res or Print res and crop the image to the correct size you need. Of coarse you need lots O' Ram or VMEM. ….John
#46647From: Andre PageApr 27, 1995 5:11 PM
Hi John, This is some more info for j.tad. "1) Get a good PMS swatche book and it should give you the RGB equivelent #s to start with. Good Luck……" Get the Pantone "Process Color Imaging Guide" it shows the -CMYK- equivalents as percentages of Cyan, Magenta, Yellow and Black (K). You will still need to convert from THAT to RGB values. I use either Brilliance or ProDraw… They have palette requesters that show BOTH values or switch between. Just enter the CMYK and read the RGB. / / / //ANDRE
#46684From: john bennettApr 28, 1995 11:39 PM
Andre, I've worked with a Pantone book that gives you the RGB equivelents #s. Depending on your application (Print, Trans, Video) you should always choose your color space at the start and stick with it. Avoid CMYK<>RGB transformations like the plague :^) Just a friendly tip. And NEVER trust your monitor, go with the #s. ….John
#46732From: Andre PageMay 1, 1995 8:25 PM
John, >I've worked with a Pantone book that gives you the RGB equivelents #s. What book is THAT? I've never seen it, might come in handy! It's a little hard to avoid CMYK<>RGB entirely, when different programs use different color spaces. Even HSV/LAB/etc.! ARRRGH! / / / //ANDRE
#46632From: BRAD HAYESApr 27, 1995 12:57 AM
You have just ran in to one of the most perplexing problems I have come across. If you have a DTP program you could enter the Panatone #'s into the Pallet then switch to an RGB scale and there you have it. The problem is that of the two DTP programs I have ProPage and PageStream, One uses a 16 level RGB scale, and the other uses Percentages. I usualy use PageStream and the Precentages, it's more acurate. You still need to do some math but it works. RGB P — — 256 100 If one of your 3 panatone #'s is 25. Multiply 25 x 256. Then Divide (25×256) / 100 = X. Then Repeat this for the other 2 Numbers.