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[Gnu3dkit-dev] Goal: No imposed limit on the number of objects in a scen
From: |
Brent Gulanowski |
Subject: |
[Gnu3dkit-dev] Goal: No imposed limit on the number of objects in a scene |
Date: |
Mon, 14 Oct 2002 19:55:22 -0400 |
General Strategy: Partition the scene into sub-scenes and load only
those which are potentially visible.
Sub-goals:
- Asset Management: re-use assets (textures and meshes) as much as
possible; identify explicit sub-scenes where they are used (and
thereby, which sub-scenes where they are *not* used). Identify re-use
of assets.
- Paging: load only potentially visible portions of the scene
- Potentially Visible Sets and "Super-sets": we can know what is
visible from a single point, but can we know what is visible from
points within X units of that point? The size of X is dependent on the
speed of the viewer's movement, and the scene complexity.
- Detail Suppression: Partition a scene based on detail level. Leaving
out details can reduce scene complexity. The question: "When can you
get away with less detail?" The tentative answer: "When the user is
moving too fast or is busy with other things." These are often the
same, and are determined by how quickly the camera is tracking/rotating.
--
Brent Gulanowski address@hidden
Ce n'est pas une signature. -Magritte
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