"wollinger" <wol### [at] gmznet> wrote in message 
news:web.4447e4473b0e2653beed6d660@news.povray.org...
>
> how can I rotate an camera which is created by screen.inc (to include text
> while moving around in my animation)?

I might not be giving the best answer but I was able to do what you want by 
adding the rotation into the screen.inc file for the camera{}, Screen_Object 
and Plane_Object. The line added to the end of each: 
Rotate_Around_Trans(Rot_Angle,Object_Center)
Please be aware of the changes I made to the names of identifiers.

Test scene from your example:

#declare My_Camera_Loc=<424510, 3000, 279020>/10;

#declare Object_Center=<423800, 1300, 284860>/10;

#declare Rot_Angle=<0,-135,0>*clock;

#include "transforms.inc" // before calling screen.inc
#include "screen.inc" // settings for this are below

Set_Camera(My_Camera_Loc,Object_Center,90)
Set_Camera_Aspect(4,3)

#declare MyTextObject =
text {
   ttf "crystal.ttf", "your text here", 0.01, <0,0>
   scale 0.08
   pigment {color <1.0,0.5,0.2> transmit clock} // clear first, ending 
opaque
   finish {ambient 1 diffuse 0}
}

Screen_Object ( MyTextObject, <1,0>, <0.04,0.02>, true, 1 )

// now something to see
cone {Object_Center,100,Object_Center+100*y,0 pigment {rgb <1,1,0>}}

light_source {
 <10000,10000,1>,1
}

/* note that the scale of the Screen_Object was increased (last parameter) 
because I was getting broken text until I changed that, possibly a problem 
with the large scene bounds. Which, BTW, you'll notice I divided by 10 here 
just to be sure it was showing okay. About the blending you asked, no idea 
except for using transmit clock. Maybe you were talking about another 
way...? */

-- 
Bob H  www.3digitaleyes.com
http://3digitaleyes.com/imagery/

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