World camera orientation matrix?

Helioform999 · February 23, 2018, 12:53pm

Where in the code is the orientation matrix for the camera? I have tried setting 2 vectors of backEnd.viewParms.world.axis to the up and lookat vectors of my camera (I’m adding another renderer) but it doesn’t work.

Thanks

jpcy · February 24, 2018, 1:18am

github.com

ioquake/ioq3/blob/master/code/renderergl1/tr_main.c#L339


	or->viewOrigin[2] = DotProduct( delta, or->axis[2] ) * axisLength;
}


/*
=================
R_RotateForViewer


Sets up the modelview matrix for a given viewParm
=================
*/
void R_RotateForViewer (void) 
{
	float	viewerMatrix[16];
	vec3_t	origin;


	Com_Memset (&tr.or, 0, sizeof(tr.or));
	tr.or.axis[0][0] = 1;
	tr.or.axis[1][1] = 1;
	tr.or.axis[2][2] = 1;
	VectorCopy (tr.viewParms.or.origin, tr.or.viewOrigin);

tr.viewParms.world.modelMatrix is the modelview/view matrix for the camera.

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World camera orientation matrix?

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