RE: Scale in View Matrix.

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Andrew Ng (nga++at++division.co.uk)
Fri, 14 Feb 1997 16:03:19 -0000


> The clip stays in the same place but the model will be scaled.

> You scale < 1 the world gets smaller around the eye and so the
> near clip appears more distant but it isn't.

> This will also affect Z values and fog.

> It doesn't surprise me that the performer cull doesn't look for
> scale in the channel matrix, but this is just a performer
> implementation issue rather than a fundamental discovery.

> Cheers,
> Angus.

Please correct me if I'm wrong, but if I set a pfChannel's view matrix to a
matrix that has a scale < 1, then won't this effectively give a scale that
is > 1 in the model view matrix. Therefore, if the clip stays the same and
the model is scaled by > 1, the near clip should appear closer.

Cheers.
------------------------------------------------------------------------
  Andrew Ng (Software Engineer)
  Division Limited, 19 Apex Court, Email: nga++at++division.co.uk
  Woodlands, Almondsbury. Tel: +44 (0)1454 615554
  Bristol BS12 4JT. Fax: +44 (0)1454 615532

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