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"clarkking" <cla### [at] sbcglobalnet> wrote:
> "Grassblade" <nomail@nomail> wrote:
> > "clarkking" <cla### [at] sbcglobalnet> wrote:
> > > I have been using Pov Ray now for a few weeks concentrating on learning
> > > syntax. I have seen its results and capabilities before however since i
> > > have played about with 3d art for several years now. I am simply amazed at
> > > some of the photorealistic results using hdri and radiosity can offer.
> > >
> > > At current however i am trying to render a scene with a transparent
> > > background. I am using the +UA command line switch and "no_image" for
> > > anything like a plane or background. Now my render in Pov is an image say
> > > with my oject perfectly rendered with a trans. bg. However when i go to
> > > open the image file in say Adobe elements (editor) the image has a black
> > > bg, and I cant seem to separate it. Thats rendering to bmp format. I have
> > > also tried outputing as Targa format but same thing happens. What am i
> > > doing wrong.
> > 'twould seem you haven't played enough with *2d* art. ;-) To save
> > transparency you need an alpha channel, it is present in PNGs and some
> > Targas, AFAIK. BMP doesn't have it, so your image editor will read the
> > pigment and output black or white depending if it reads 0,0,0 as black or
> > white.
> > > My goal here is to take that object and layer it onto a bg
> > > image in the iamge editor. Also could i just use the image as my
> > > background in Pov? How would I do that though, as an image map? I have
> > > tried that i think but how do i tell Pov Ray where to look for the image?
> > Respectively yes, yes and Library_Path (or +L, see
> > http://www.povray.org/documentation/view/3.6.1/220/).
> > >
> > > Well thats enough for now...thanks alot.
> > >
> > >
> > > <C>
>
> Thank you both it works of course.
>
> I would really like to learn more about using HDRI light maps to light my
> scenes and objects. Can i do that with the current version of POV? I have
> seen online Mega POV and i have downloaded it. but does it just run in the
> background to the main POV 3.6 windows console? I am a beginner with hdri
> for sure so some comprehensive tutoials would be wonderful.
>
>
> Thanks again!
Well when I use the +UA and +FN switches i get what i wanted but it seems
like a have lost my reflections and some surface props of my object. The
reflections remain while I use no_image for the planes objects, but the
reflections seems to be lost when i use the +UA switch, why?
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