CompuServe Thread

double vision

6 messages in this thread
#159472From: Rock RichardsonMar 17, 1995 9:31 AM
I have a problems I would like to through out to the masses. I am doing some work for an attorney who's client was involdved in an accident. the effect I am trying to obtaine is based on his eyesight he has perfect visionto 30 degrees, after 30 degrees he has double vission I am trying to dublicate that effect. does anyone have any Ideas. are there any Ipas routines that would give me adouble [D [D [D [D [D [D [D [Dvission effect any help would be appreciated, Thanks, Rock
#159695From: John K. JordanMar 18, 1995 10:45 PM
Hello Rock, I just tried your double vision problem and it is easy to do with video post and a transparancy mask. No IPAS needed. – Decide the shape and size of the central area of normal vision and build a transparancy mask. Make it pure white in the middle and 50% grey outside the middle. Make it the same resolution as your rendered images and things will be easier. You probably want a soft edge between the two areas. This is very easy to do in a program like Photoshop. The image can be saved as an 8-bit GIF. – Render an image (or animation) to be used to demonstrate the effect. – In Video Post, create two entries in the queue, both with the same source image (or animation) used as a bitmap. In the first entry, click on OFFSETS and add a little offset. I used an X-offset of 4 with a 256×256 test image. In the second entry, use a zero offset. Click on the second entry's ALPHA slot and set your transparancy mask image as an RGB INTENSITY MASK. The Video Post queue should now look like this: IMAGE.TGA IMAGE.TGA RMask/I When you render your image (or animation), it will have a normal image in the center and a double image outside. There are probably many ways to do this, but this is the first one I thought of. Good luck! JKJ
#159704From: david W. mennenohMar 18, 1995 11:22 PM
Great tip on the double vision thing John. DM
#159797From: John K. JordanMar 19, 1995 10:45 PM
Just my kind of fun! (Yikes, can you imagine having vision like that? I thank God for eyes that work.) JKJ
#159721From: Ted BoardmanMar 19, 1995 9:22 AM
Rock Here's a possibility. Render the clear image or animation and use it as a background image. Map that same image to a transparent, flat object larger than your scene and scale the mapping to give the double vision effect. Place a flat matte object to clear the central 30 degree viewing area by allowing the background to show through. Haven't tried it myself, but…… Good luck TedB !^NavFont01F0007MGHHH439DF3
#159822From: Rock RichardsonMar 20, 1995 8:31 AM
thanks for all the imput, these ideas will get me started Thanks again Rock,