Simple csg with a nice (and fast) metal tex thanks to Rune. I have not
used a gradient y along the cylinder lengths (this was just to see how
fast the normal averaging technique rendered, and that would have
required a little too much modification), but it still came out looking
great.

Total render time ~ 9hrs on a P233. My old tex with a high frequency
spiralling normal took ~ 1 1/2 weeks to do half of this scene.

MJL

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Attachments:
Download 'metal.jpg' (64 KB)

Preview of image 'metal.jpg'

"Mark James Lewin" <m_j### [at] yahoocomau> wrote in message
news:3998931A.80C469DC@yahoo.com.au...
> Simple csg with a nice (and fast) metal tex thanks to Rune. I have not
> used a gradient y along the cylinder lengths (this was just to see how
> fast the normal averaging technique rendered, and that would have
> required a little too much modification), but it still came out looking
> great.
>
> Total render time ~ 9hrs on a P233. My old tex with a high frequency
> spiralling normal took ~ 1 1/2 weeks to do half of this scene.
>
> MJL

That's nice metal.  May we see the final texture statement for it?

rc

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Go to p.b.s-f. Rune posted the tex (the credit goes to him, not me) there
under faking small rings there. I just scaled it to suit.

MJL


Robert Chaffe wrote:

>
> That's nice metal.  May we see the final texture statement for it?
>
> rc

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On Tue, 15 Aug 2000 10:47:23 +1000, Mark James Lewin
<m_j### [at] yahoocomau> wrote:

>Simple csg with a nice (and fast) metal tex thanks to Rune. I have not
>used a gradient y along the cylinder lengths (this was just to see how
>fast the normal averaging technique rendered, and that would have
>required a little too much modification), but it still came out looking
>great.

Definitely! So who says POV can't use anisotropic BRDFs? :))


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG      e-mail : pet### [at] tagpovrayorg

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Quite a while ago people were trying circular brushed metal textures, this
particular one would go well I think, in a repeating (tiled) pattern sort of
way.  Although the one at that time looked good.

Bob

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Impressive stuff.

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Steve              email mailto:ste### [at] zeroppsuklinuxnet

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"Mark James Lewin" wrote:
> Simple csg with a nice (and fast) metal tex thanks to Rune.
> I have not used a gradient y along the cylinder lengths, but
> it still came out looking great.

Very nice!

I'm glad my technique worked for you! You have shown its potential much
better than I could have done myself.

> Total render time ~ 9hrs on a P233. My old tex with a high
> frequency spiralling normal took ~ 1 1/2 weeks to do half
> of this scene.

So that's more than 100 times faster!

Rune
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\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated July 23)
/ Also visit http://www.povrayusers.org

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"Bob Hughes" wrote:
> Quite a while ago people were trying circular brushed metal
> textures, this particular one would go well I think, in a
> repeating (tiled) pattern sort of way.  Although the one at
> that time looked good.

I don't know about those textures back then, but I know that the technique I
use makes the textures automatically behave somewhat realistically when you
move around your objects and/or light_sources and/or camera. I'm not sure
which kind of tiling you mean, but I'm sure it could be done rather easily
with this texture.

Greetings,

Rune
--
\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated July 23)
/ Also visit http://www.povrayusers.org

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Ah.  Got it.  Thanks.

rc

"Mark James Lewin" <m_j### [at] yahoocomau> wrote in message
news:3998BB33.B7CB4E84@yahoo.com.au...
> Go to p.b.s-f. Rune posted the tex (the credit goes to him, not me) there
> under faking small rings there. I just scaled it to suit.
>
> MJL

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