Re: Scaling component for channel ViewMatrix

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From: Angus Dorbie (dorbie++at++sgi.com)
Date: 10/27/2000 02:16:43

The frustum is on the projection matrix, so it is completely separate
from the modelview manipulation of the viewing matrix.

You are seeing the world being scaled inversely in eye space, not the
clip planes moving on the frustum.

Cheers,ANgus.

Scott Herod wrote:
>
> I've been playing with adjusting a channel's ViewMatrix
> by hand and tried applying a uniform scaling to the matrix.
> My tests suggest that the far clipping plane is changed
> by the scale but that the near clipping plane is not. Can
> I depend on changes to the viewing frustum with a scaled
> view matrix or is the behavior of the frustum undefined?
>
> Thank you,
>
> Scott Herod
> scott++at++evt.com
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