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Graphics
Page history last edited by Randy Bozarth 1 yr ago
Modeling ideas
- morning routine: Canson journal, G2 pen, white eraser, Pentel pencil, green lamp, desk blotter, bible, book, coffee mug, creamer plastic, menu, cell phone, watch, reading glasses, sunglasses, helmet, gloves, jacket, booth, salt/pepper, condiments, brick wall with art (price),
- keys: BMW /7, /5, elevator, swiss army knife, assorted other, rings, fob
graphics file formats
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3D
resources
Animation
- Zarth - The first animation I put together was an exercise in everything to do wrong. When I compiled the movies, I did not save the original images, so I had to go back and rerender them all. Not very smart on my part, but I did not understand the differences between codec outputs. Now with HDTV available in addition to the older NTSC and PAL formats, there are even more options to choose from. Bongo does support the MPG format, which uses the Mpeg-1 compression. The Mpeg-4 is available but used for the AVI only. Divx is highly popular, similar to the Mpeg-4 compression, yields a high quality movie and provides efficient file size when finished. There are freeware programs also the allow you to create the animation with other codec formats. When forced with the decisions that you have to make, I have tried multiple animation outputs and then view them on a similar system to what my customer or supplier would view them on. System performance, video card memory, screen resolution also play a critical role in the final results, which must also be thought about. Because there are no hard hard and fast answers, testing is the easiest way. Here is a quick rundown on what I know about the formats.
Mpeg-2 was driven by broadcast signals and DVD sales. Currently Blu-ray DVD's are currently using the Mpeg-2 compression. This is expected to change soon as the HD DVD's are encoded using the VC-1 and H.264 standards. The Mpeg-2 has 10 profiles to it can take it from 96 kbits/s for 176 x 144 pixel resolution at 15 frames a second to 300 Mbits/s at a resolution of 1920 x 1080 resolution at 30 frames per second or 1280 x 720 at 60 frames per second. We will not discuss luminance and chrominance differences as it hurts by head every time I think of it. :-)
Mpeg-4 has a total of 22 parts to it, some are waiting for approval at the present time. Mpeg-4 can deliver the same quality as Mpeg-2 but at a lower bitrate.
Mpeg-4 Part 10 is becoming the standard for home consumer video equipment, this is also know as H.264/Mpeg 4 AVC which stands for Advanced Video Coding. The H.264 standard contains seven profiles and 16 levels, which provides an extreme range of versatility. The maximum bit rate ranges from 256 kbits/s at either 128 x 96 pixels at 30.9 frames a second to a bit rate of 960 Mbits/s at resolutions of 1920 x 1080 with 120.5 feet per second, 4096 x 2048 pixels at 30 FPS, and 4096 x 2034 pixels at 26.7 FPS.
VC-1(Windows Media Video version 9) was approved by the Society of Motion Picture and Television Engineers (SMPTE) last March. VC-1 is considered to be the largest competitor of the H.264 standard. VC-1 supports resolution from 176 x 144 pixels at 15 FPS to 96 kbits/s at 1920 x 1080 resolution at 60 FPS, 2048 x 1536 pixels at 24 FPS and 136 Mbits/s. Blu-ray and HD DVD have adopted the VC-1 codec as a mandatory standard.
As for freeware video compressors other than Bongo, the first one that comes to my mind is Bink and Smacker, which can be downloaded from the link below, but I am sure that there is a long list than can be found with a little searching.
http://www.freewr.com/download.php?download=the-rad-video-tools&lid=2781
Regards
Vince
Graphics
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