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At first, make a white ball and then make a red box, which is bigger than
the ball, in front of the ball.
If I use the command "filter" or "transmit", I could see the ball through
the box.
But the color of ball(white) seem to be redder and dimmer than its original
because the light traverse through the red box.
If I put more red boxes in front of the ball, I will not be able to see the
ball because many boxes screen the light emitted from the white ball.
How can I see the white ball even if there are many boxes between the ball
and the camera?
Thank you.
JH
--
==========================================
Yonsei University, Department of Astronomy
Seoul, South Korea
Graduate Student, Room #703
Joo Heon Yoon in GEM
jhy### [at] galaxy yonseiackr
==========================================
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From: Mark Wagner
Subject: Re: making perfectly transparent object with color
Date: 21 Jul 2006 03:27:56
Message: <44c081fc@news.povray.org>
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yoon wrote:
> At first, make a white ball and then make a red box, which is bigger than
> the ball, in front of the ball.
>
> If I use the command "filter" or "transmit", I could see the ball through
> the box.
>
> But the color of ball(white) seem to be redder and dimmer than its
> original because the light traverse through the red box.
>
> If I put more red boxes in front of the ball, I will not be able to see
> the ball because many boxes screen the light emitted from the white ball.
>
> How can I see the white ball even if there are many boxes between the ball
> and the camera?
Are you running into a problem with max_trace_level? How many boxes are
there?
--
Mark
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From: yoon
Subject: Re: making perfectly transparent object with color
Date: 22 Jul 2006 06:11:44
Message: <44c1f9e0@news.povray.org>
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more than 100 boxes.
The maximum of the "max_trace_level" is truncated at 256.
I just can't see the ball because 256 is not big enough.
"Mark Wagner" <mar### [at] gtenet> wrote in message
news:44c081fc@news.povray.org...
> yoon wrote:
>
>> At first, make a white ball and then make a red box, which is bigger than
>> the ball, in front of the ball.
>>
>> If I use the command "filter" or "transmit", I could see the ball through
>> the box.
>>
>> But the color of ball(white) seem to be redder and dimmer than its
>> original because the light traverse through the red box.
>>
>> If I put more red boxes in front of the ball, I will not be able to see
>> the ball because many boxes screen the light emitted from the white ball.
>>
>> How can I see the white ball even if there are many boxes between the
>> ball
>> and the camera?
>
> Are you running into a problem with max_trace_level? How many boxes are
> there?
>
> --
> Mark
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From: Thorsten Froehlich
Subject: Re: making perfectly transparent object with color
Date: 22 Jul 2006 06:28:36
Message: <44c1fdd4$1@news.povray.org>
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yoon wrote:
> more than 100 boxes.
>
> The maximum of the "max_trace_level" is truncated at 256.
>
> I just can't see the ball because 256 is not big enough.
If you add that many perfectly transparent objects the only effect you
archive is reducing render speed, they will not contribute anything to your
scene. As such, you can just as well just remove them! They are invisible,
so no reason for them to be in the scene...
Thorsten
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