a few questions

A good point Troub – yes I am sure a constant colour would be better.
Another improvement would be to increase the size of the inverted sphere to take it further away from the scene.
Also worth looking into the ‘no shadow’ options just incase you have a bright enough light to cast a shadow onto the sphere.

a few questions. i have not used pov ray much but i need a little help.

1. how do i take one of my own textures and put it on a model and pov ray it. what is the correct type of texture map i.e. jpeg, etc.

i need to know little things like that or have some quick instructions on this. i have also read the pov ray tutorial but this kind of stuff is not covered as far as i know.

any help would be great.

-korben

also too…
i always export an .avi for video work i do. i usually use a blue or green background so i can key the rendered animation in after effects or premiere. this works fine when not using pov ray. when i render with pov ray the reflections pic up the background as well.

-is there a way to render so as the objects in the scene are effected by pov ray and the background is not taken into effect except as a straight background.

-if neeeded i can post a pic so people can see what’s going on. again i just started using pov ray a week ago.

any help plese!

-korben

also too. i know this is probably a stupid question, but is there any way to speed up the render in pov ray. i am sure this is normal but it took me a little over an hour to render a ten second piece of video that had only one object in it with a black background. and by the way i am still having problems with the post above this one.

here are some pics to show what is going on

this first pic is rendered just in 3DC
!NOT using povray! see- it looks fine but can’t have the reflections etc. that povray can do.

now this is the same test scene but rendered with povray and using reflections. NOTICE that the cube (or what ever polygon) picks up the reflection of the actual background. i need to get around this but still have the ability to have reflections and keep a color backgound so i can chromakey it out later.

any help please!

-korben

also i am not rendering the atmosphere. so that can’t be a case. WHAT IS GOING ON!!!???

-korben

Here is a real good tut [img:9m7ecf5g]http://www.f-lohmueller.de/pov_tut/pov__eng.htm[/img:9m7ecf5g]
POV basis
Someone here found it. Hope it helps, haven’t read it yet.
KB
Les will probably have am idea. <!– s:D –><img src="{SMILIES_PATH}/icon_e_biggrin.gif" alt="" title="Very Happy" /><!– s:D –>

I have thought of one way but it it does have problems <!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

in pov you need to tell the material which colours to reflect – so you [i:3cob36ny]could[/i:3cob36ny] set up a red background and add the code so your reflective materials only reflect green and blue. I don’t know about the editing software you use for your video but I guess if you do need all colours reflecting then you would need to repeat the sequence with gree and blue background and then combine them together ?

long winded and I bet there is a much better method…..

re fog in above pic – if you turn off ambient light in 3dc then I think it turns on the ‘fog’ fx in pov

please note that I don’t use pov much any more so most of this is guesswork <!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

[This message was edited by Alan on Mon March 22 2004 at 02:50 AM.]

well it works in a fashon <!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

dusted off pov and got these results – as you can see in the first one the background red is reflected in the ‘silver’

in this second pic I,ve removed red from the reflection – but also look at the reflection of the red ball <!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

and the code would go from

texture {
pigment { rgb andlt;0.2, 0.2, 0.2andgt; }
finish {
ambient 0.1
diffuse 0.7
brilliance 6.0
reflection { rgb andlt;0.3, 0.3, 0.3andgt; }
phong 0.8
phong_size 120
}
}

to

texture {
pigment { rgb andlt;0.2, 0.2, 0.2andgt; }
finish {
ambient 0.1
diffuse 0.7
brilliance 6.0
reflection { rgb andlt;0.0, 0.3, 0.3andgt; }
phong 0.8
phong_size 120
}
}

but you would need to do this for all reflective materials in your scene – but if you are using the ‘default’ materials you would only need to edit the ‘included files’ that come with pov.

that looks like a good idea alan, and thanks for finding that out. i’ll try that, but i will also wait and see what others say. plus i am still waiting on emails from richard-because he is on vaction all of his emails bounced back.

anyway thank you,

-korben

that actually seems to be more trouble than it is worth. there has got to be a thing in 3DC that can render the background but not ray trace it with the other elements. if there isn’t anything like that there should be.

any help on this subject would be great. and does anyone know when richard is coming back from vaction. because he would know the best.

-korben

another idea….

how about you put a very (very)large cube or plane in the background (way, way back) colour it with your 255,0,255 chroma key colour (chroma key ? is that the right term ?).

I’ve given this a quick test and it appears to work……

edit

sorry – I should of checked it further – still picking up the ‘background’ (or cube in this case <!– s:( –><img src="{SMILIES_PATH}/icon_e_sad.gif" alt="" title="Sad" /><!– s:( –> )