View Full Version : Zoom to Planet Earth
Graogramar 06-13-2003, 11:49 PM Hi Folks.
I'm trying to make a scene where the camera zooms pretty near to the planets surface. I took a hi-res Planet texture (about 120Megs) --> Maya chrashes.
How would you solve this problem? It has to look close photorealistic. I only need a small tile of earths surface, but the textures which fit to the photorealistic view are to large. Smaller satellite-images are looking bad. Hopefully there is some help...
Grettings and thank you.
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webster
06-13-2003, 11:53 PM
I think you´ll need BOT (Block Ordered Texture) which, shortly explained, will only load the needed part of the texture in the renderer
robbo59au
06-14-2003, 01:48 AM
Webster has made the obvious suggestion.
As an alternative, you could do your 3D as a number of passes; one for the widest view, another for a closer pov, yet another closer in and so on, using the same camera move, and using progressively more detailed texture maps. Then comp them in 3D. A tad more complex to do, but more versatile.
Good luck.
Stahlberg
06-14-2003, 06:18 AM
And if you don't want to composite you could do the same thing all in the 3d app, use a lower res texture on the whole earth, then map say half a continent or something with a part of the higher res texture on a piece of geometry that doesn't cast shadows and sits very close to the surface, blur the edges with a transparency map.
arangel
06-14-2003, 01:53 PM
What´s the workflow for working with BOT?
Rangel
webster
06-14-2003, 07:19 PM
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From the Help-Docs:
Using the BOT pre-render setup
The usage for this pre-render setup is straight-forward. A new and optimized scene file is generated and is ready for the renderer. See the following maya -optimizeRender -help message:
Usage: maya -optimizeRender [options] mayaFile optimizedMayaFile
-botRes 'int'
Minimum file texture resolution that will cause BOT files to be produced. For example, specifying "-botRes 256" means that all file textures bigger than 256x256 will be converted to BOT format. The default value is 0, meaning all file textures will be converted.
-botLoca 'name'
Directory in which BOT files reside (default is in the same directory as the original file).
-help
Prints this message.
-noBOT
Avoid BOT creations.
-noCleanup
Avoid cleaning up useless data.
-tessFreeze 'start frame' 'end frame' 'by frame'
Calculate NURBS tessellation that gives the best image quality based on the camera projection.
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I also never used it,
As far as I can read, you´ll have to code by the command shell your options and it will generate a new scene, where every texture, depending on your settings (given resolutions by "-botRes <int>") will be converted in an BOT-Format. This new generated scene should be rendered.
As said before, I never used it.
Maybe some experienced user in this area could tell us more :wip: :wavey:
arangel
06-14-2003, 11:11 PM
I´ve used this scene optimizer before. Just to make sure, to scene becomes usesless for editing afterwards, right?
I did once and could never change the "freezed" teselation. Is there a way?
Rangel
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