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Help wanted on this POVRAY 3 trace-settings

Help wanted on this POVRAY 3 trace-settings

Post by hspie.. » Tue, 05 Nov 1996 04:00:00



Hi All POVray3 enthousiasts,

Is there anyone out here who can tell me:

- how do I get more light in my scene?
- how do I get the highest quality possible with the camera depth blur?

I'm not happy with the result so far. The result is included.

section 1/1   file bird.zip   [ Wincode 2.6.6 ]

begin 644 bird.zip
<uuencoded_portion_removed>
MX333'HTFVK[
<uuencoded_portion_removed>
M%-UWEI5<)3;#+<*VMA"\Y:S9IGZQXJ>W5>KG2R4#MRX#W?Y5Y\8N1_ER2Q>Z7BY8^>G&7]G1;'%7

<uuencoded_portion_removed>
2R

<uuencoded_portion_removed>
MEG0Y37I01\&/JM_3EEDGS+/<H.!R7#<QX5RN:#%/>&J=2(.\U>7&KUJ-R\<R-$A;$/?/9('[76#D
M`5GB8\&-_27L#Q"3W_XX'(?SE9E8N#N)W-#\BN!PHI?5
<uuencoded_portion_removed>
M9>JI#'SEI3XSM
&1)5Q#=8'^6?RBO*+9??P#J;1"7T5A\K+
<uuencoded_portion_removed>
:%
M/%BWW_WU\>,O;]Z\,3W=C\62IN5*;%,W.95DU-QNC*2Y
<uuencoded_portion_removed>

Quote:>96QS,BY41T%02P4&``````$``0`Y````E=H$````

`
end
sum -r/size 2052/318180

section 1/1   file bird.zip   [ Wincode 2.6.6 ]

 
 
 
Top

1. I need desperately help in ray tracing / setting a line

Hello,

I am somehow stuck, and I can't get any further searching the news
groups:

The problem:

I just want to shoot a straight line through an object under the
current cursor position.

The set up:

I use

gluPerspective(45,(w / h),0.1,1000);
and the camera is with gluLookAt
0,0,70 facing the 0,0,0 (orgin);

The window is 300 * 300 pixel (w, h);

I tried using the gluUnProject() function as described in previous
posts put somehow does this not work. I am as well not sure how to
convert the actual mouse coords into screen coord at my current
position. (I tried to find out the z-heigth at my camera position with
tan and mapped it to the realtive mouse coords):

float zCoord = tan(PI/8) * pCamera->vActualCamPosition.z;
vMouse.x = (float)zCoord/(iWindowWidth/2) * (float)( x -
(iWindowWidth/2));
vMouse.y = (float)zCoord/(iWindowHeight/2) * (float)((iWindowHeight/2)
- y);
vMouse.z = pCamera->vActualCamPosition.z;

or is this complete nonsense?

I would very appreciate if someone could help me.

Thanks a lot in advance

chris.

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