Problems positioning camera with exporter, utnits may be dif

[Lord Crc]

Ah yes, I thought something like this may be the case.

You could try the following. It will use the camera/object matrix as is, but then swap z and y, as well as multiply the new y with -1. The first matrix does this job (which is applied last). We then multiply it with the original matrix using ConcatTransform.

Code: Select all

   outputstream << "Transform [" <<
       " 1.0 0.0 0.0 0.0 " <<
       " 0.0 0.0 1.0 0.0 " <<
       " 0.0 -1.0 0.0 0.0 " <<
       " 0.0 0.0 0.0 1.0]" << std::endl;

   outputstream << "ConcatTransform [" <<
       m[0][0] << " " << m[1][0] << " " << m[2][0] << " 0.0 " <<
       m[0][1] << " " << m[1][1] << " " << m[2][1] << " 0.0 " <<
       m[0][2] << " " << m[1][2] << " " << m[2][2] << " 0.0 " <<
       m[0][3] << " " << m[1][3] << " " << m[2][3] << " 1.0]" << std::endl;

You might want to play with the sign there, either removing it or putting it on the other 1 instead (the one on the row above and to the right).

If this works then you'll need to do this for all objects you export.

[rasikrodri]

Now the camera rotation x is perfect but still the y and z do not appear to be swaped! they have not changed!

[rasikrodri]

Why is it so complicated to give LuxRender the transformations. I does not work still!

[Lord Crc]

I understand your frustration, I wish I could be of more help, however they don't seem to have a demo of Animation Master, and in any case I don't have access to Visual Studio 6

I'm going over the math once more, I may have made a mistake.

[paco]

I wish I could be of more help

Looks like you've already gone above and beyond! You're a great asset LordCrc

[rasikrodri]

paco is wrigth!
You have gone farther than I thougth someone in the forum would go.
I really apreciate your help!

[rasikrodri]

Just to reafirm that the info I gave you is correct I tested the x,y and z rotation again:

I tested each value independently, having the other rotation values in 0, pluss the translation in 0.
X in Animation Master rotates the same in LuxRender
Y in Animation Master rotates the camera to the sides, in LuxRender spins it
Z in Animation Master spins the camera, in LuxRender rotates the camera to the sides

Thanks

[Lord Crc]

Great, I'll be home tonight, I'll try to figure it out then