Is it possible to use cube mapping or sphere mapping with povray?
I do not have found it in the documentation.
I have only found real reflection.
Thanks.
From: Andrew
Subject: Re: cube mapping and sphere mapping
Date: 27 Aug 2003 13:15:02
Message: <3f4ce716$1@news.povray.org>
If I understand you correctly you're asking about environment mapping.
If so then you can get this kind of effect by using a sphere (or cube)
with the no_image and no_shadow tags surrounding your reflective object.
This means that it only shows up in reflections, so is visible reflected
from your object, but is not rendered otherwise.
Obviously this will begin to fail if your object is visible in a mirror
anywhere - the surrounding mapped sphere will show up instead.
See http://news.povray.org/povray.binaries.images/27156/
"Texel" <nomail@nomail> wrote in message
news:web.3f4ce0c26d4b73a046afc4e40@news.povray.org...
> Is it possible to use cube mapping or sphere mapping with povray?>> I do not have found it in the documentation.> I have only found real reflection.>> Thanks.>
In fact, i am writing a file converter (Anim8or->PovRay).
In Anim8or the user can apply a CubeMap as a material to the faces.
A CubeMap is like skybox textures reflected on the object.
Your idea seems to be interesting.
But in Anim8or we can also use 1 texture as a reflection like in OpenGL with
GL_SPHERE_MAP. And it will be more difficult to simulate it.
On Wed, 27 Aug 2003 14:44:23 EDT, "Texel" <nomail@nomail> wrote:
> In fact, i am writing a file converter (Anim8or->PovRay).> In Anim8or the user can apply a CubeMap as a material to the faces.> A CubeMap is like skybox textures reflected on the object.> Your idea seems to be interesting.>> But in Anim8or we can also use 1 texture as a reflection like in OpenGL with> GL_SPHERE_MAP. And it will be more difficult to simulate it.
If I understand your problem, all you need is to search manual for keywords
"warp" and/or "uv_mapping" and/or "map_type".
ABX
