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SGI General Performance Comparisons (Screenshots)

Last Change: 29/Jan/2009

This page contains screenshots which correlate to the various tests given on the SGI General Performance Comparisons page for Graphics Test 1 (single-buffered Inventor objects0. I decided to put the screenshots on a separate page because including them as inline images on the main page looked very messy, and also made the main page more cumbersome to load into a browser.

All the 3D model files are now available for download from the Depot Resources page. Each section here has a link to the appropriate model file. Use the mouse right button 'Save Link As' (or equivalent) to download the model. On some browsers, hold down Shift and click on the link normally.

Test A: Underwater Camera [778K download] (42650 polygons). This model is from SGI's own demonstration collection. High-quality transparency was turned on for this test.

Test B: Huge Engine Model [1445K download] (111638 polygons). This model is also from SGI's own demonstration collection. High-quality transparency mode has a different effect on this model compared to the camera.

[Huge Engine Model (transparent)]

Test C: chromeskins [745K download] (7156 polygons). ChromeSkins is a reflective model of the O2 chassis. O2 users will find the full demo in /usr/demos/General_Demos/chromeskins.

Test D: angus.iv [4K download] (3459 polygons). Angus is a non-textured model of an unmanned underwater vehicle.

Test E: e.iv [36K download] (1568 polygons, complexity value 0.7). e.iv is a simple model of earth using a single small Earth texture on an Inventor sphere node.

Test F: stars3.iv [797K download] (0 polygons, 16666 points). This model is a point data set made to resemble a simple galaxy. The model file actually contains several sub-models and as such is deliberately inefficient.

Test G: ss78ne_d30.iv [15K download] (1682 polygons). This is an inefficient landscape model (30x30 grid) with a different colour value for each vertex. The full version of this model is a 500x500 grid [3MB download] - I wrote my own program to 'extract' simpler versions from the complete model. The colouring algorithm is also my own. The dataset is actually part of England, but I don't know which part. Data supplied by Ordnance Survey.

Test H: ss78ne_d100.iv [134K download] (19602 polygons). This is a more complex 100x100 grid version of the landscape model.

Test I: ss78ne_d300.iv [1268K download] (178802 polygons). More complex again, now a 300x300 grid.

Test J: lothian400.iv [1779K download] (318402 polygons). This is a different landscape model, 400x400 grid, of the area of Lothian region, Scotland (East coast). I live on this mesh somewhere! NOTE: for newer systems, this test is CPU-limited, ie. the bottleneck is not in the graphics pipe (the extra CPUs in multi-CPU systems are not used by ivview, so the gfx system is not going as fast as it could if more than one main CPU could be utilised, or if a better CPU were present). Data supplied by the Radar Research Lab at Heriot Watt University, Edinburgh, Scotland.

Test K: arm2.iv [1.7K download] (810 polygons). This is a simple but highly accurate model of a robot arm; the model file actually contains Inventor constructs to allow the joint angles to be altered. The real arm resides in the Ocean Systems Research Laboratory at Heriot Watt University, Edinburgh, where I conducted undersea modeling research back in 1995.

Test L: stars4.iv.gz [3676K download] (0 polygons, 300000 points). This model is a simple, very large point data set, constructed by placing random points in a spherical volume, which was then squashed vertically. Unlike Test F, this test is a single defined Inventor object. For the maximum size window (MW), I zoomed the object so that it just filled the ivview window area (this is only reliably possible to do because the object is circular). Note that a system needs more than 64MB RAM to run this test properly.

Test L: spacestation.iv.gz [273K download] (10237 polygons). This is the famous model from the /usr/share/data/models/vehicles directory. It should be reasonably indicative of simple non-textured CAD modeling which many owners of older systems may want to do, ie. the test is probably more relevant to the level of complexity which users woould throw at systems no faster than O2 or HighIMPACT Indigo2. Note that, for the max-window tests (MW), I zoomed the object so that the space station's main ring just touched the ivview window border.

Ian's SGI Depot: FOR SALE! SGI Systems, Parts, Spares and Upgrades

(check my current auctions!)

[WhatsNew] [P.I.] [Indigo] [Indy] [O2] [Indigo2] [Crimson] [Challenge] [Onyx] [Octane] [Origin] [Onyx2]

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