 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I wanted to create an emission-media which actually uses
an image as base, simulating a glowing image.
Before, all I did, was use image-map right inside
the density-statement, but I don't get it to work.
Anyone know how to?
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Already tried image_pattern?
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In article <3C602B2E.39A4AA9F@gmx.de>, tim### [at] gmx de says...
> Before, all I did, was use image-map right inside
> the density-statement, but I don't get it to work.
What exactly was the problem? When I tried this some time ago it worked
without probs.
Lutz-Peter
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> Already tried image_pattern?
>
I only get a gray-scale image then.
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
>
> What exactly was the problem? When I tried this some time ago it worked
> without probs.
It returns error message and points at the image_map statement inside
the density.
Some time ago, this way worked for me as well...
I'm stuck!
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In article <MPG.16ca4ce65d03bb809896da@news.povray.org>, lpv### [at] gmxde
says...
> What exactly was the problem? When I tried this some time ago it worked
> without probs.
Oh, I just tried re-render it, and it didn't work anymore.
So propably i created that one in MegaPov...
However, using image_pattern or a function makes it work but without
color, so you will have to use 3 medias (one for each color component).
Is there a reason why Pov 3.5 doesn't accept an image_map inside a
density?
Lutz-Peter
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thanks for your testing, but I guess I'll have to stick to a "normal"
image (not glowing).
Also, while testing, I've found that using a contrast-adjusted and
shadow-midtone-highlight-adjusted image, I can achieve something
pretty realistic.
It was meant for a dark room, without much light, and the adjustments
to the image-map made if appear more like an in-scene radiosity-affected
image-map (though it isn't, of course).
I'll post a version of that on my homepage WIP sometime this night.
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Tim Nikias <tim### [at] gmxde> wrote:
:> Already tried image_pattern?
: I only get a gray-scale image then.
It's difficult to tell what is wrong without seeing any code.
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
Post a reply to this message
|
|
| |
| |
|
|
From: Jaime Vives Piqueres
Subject: Re: Using images in density-medias?
Date: 5 Feb 2002 16:33:04
Message: <3c604f8f@news.povray.org>
|
|
|
| |
| |
|
|
Lutz-Peter Hooge wrote:
> Oh, I just tried re-render it, and it didn't work anymore.
> So propably i created that one in MegaPov...
Same case here... I used it on my IRTC entry for "LABORATORY", but that
was MegaPOV. I don't know right now if it was posible with 3.1, but I
doon't think so. Anyhow, I don't remember to have seen this specified as a
MegaPOV feature.... hmmmm.
Indeed, this was very handy for "luminous" objetcs with global ambient
set to 0.... I'm also curious about why this does not work on 3.5. Must
investigate...
--
Jaime Vives Piqueres
La Persistencia de la Ignorancia
http://www.ignorancia.org
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In basic, its like this:
object{ Area hollow pigment{rgbt <0,0,0,1>}
interior{media{emission 1 intervals 1 method 3 samples 1,5
density{image_map{tga "image.tga"} translate -.5 /*centers the image*/}
}}
}
It does create some sort of emission, based on the calculated grayness
of a colored pixel, but the colors get lost. That's not the behaviour of
POV-Ray 3.1g, and probably MegaPOV (I don't use MegaPOV).
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
