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h3dGetNodeTransMats and h3dSetNodeTransMat

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tshannon

Post subject: h3dGetNodeTransMats and h3dSetNodeTransMat

Posted: 24.05.2012, 15:06

Joined: 19.01.2012, 21:01
Posts: 55

I'm writing a wrapper for the Go language for horde, and I want to make sure I understand these two calls:

h3dGetNodeTransmats
and
h3dSetNodeTransMat

In h3dGetNodeTransmats, the matrix is defined as

Code:

const float ** relMat

, a pointer to a pointer, while h3dSetNodeTransMat is simply

Code:

const float * mat4x4

a pointer to an array, correct?

Why the difference, and am I right in understanding that in all instances the underlying data structure is simply a array with 16 elements?

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Volker

Post subject: Re: h3dGetNodeTransMats and h3dSetNodeTransMat

Posted: 24.05.2012, 16:22

Tool Developer

Joined: 13.11.2007, 11:07
Posts: 1150
Location: Germany

h3dGetNodeTransMats returns a pointer to the internal matrix (which is a float array), thats why it is a pointer to a pointer.
In h3dSetNodeTransmat the given 16 float array values will be copied.

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