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Hiya everbody
I've created a complex smooth_triangle mesh with 90' corners in it. Wich
worked perfectly fine exept for the fact that the mesh seems to darken
at the edges of the mesh. I've tried every possible way of lighting it,
but i can't seem to get rid of these patches.
Why does this happen and how can you eliminate it?
Maurits Dekker
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io175836 wrote:
>
> Hiya everbody
>
> I've created a complex smooth_triangle mesh with 90' corners in it. Wich
> worked perfectly fine exept for the fact that the mesh seems to darken
> at the edges of the mesh. I've tried every possible way of lighting it,
> but i can't seem to get rid of these patches.
>
> Why does this happen and how can you eliminate it?
>
> Maurits Dekker
Try working with different values of diffuse and ambient in you finish statement
and you should be able to minimize the effect you are seeing.
--
Ken Tyler
See my 700+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html
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I think what you are seeing is the effect caused when POV tries to
render a surface that points away from it. The smooth_triangle is flat,
but is shaded as if it was curved, so you can see past what would be the
outline of the object. The only way around it that I know of is not to
use smooth triangles.
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Sometimes the computed normals on edges that are meant to be sharp end up
being shaded causing extreme shading... I've had that problem a few times.
The way to get around it is to set a limiting angle at which it doesn't
computer a normal and makes it a flat triangle. (maybe)
--
Lance.
---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://listen.to/colorblind
io175836 wrote in message <37B2E254.ED24CA0D@Student.IO.TUDelft.NL>...
>Hiya everbody
>
>I've created a complex smooth_triangle mesh with 90' corners in it. Wich
>worked perfectly fine exept for the fact that the mesh seems to darken
>at the edges of the mesh. I've tried every possible way of lighting it,
>but i can't seem to get rid of these patches.
>
>Why does this happen and how can you eliminate it?
>
>Maurits Dekker
Post a reply to this message
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i have this problem too. however tweaking the diffuse settings is a big help
look at my IW-A500 case (second pic) in my last post in povray.bin.images
io175836 wrote:
> Hiya everbody
>
> I've created a complex smooth_triangle mesh with 90' corners in it. Wich
> worked perfectly fine exept for the fact that the mesh seems to darken
> at the edges of the mesh. I've tried every possible way of lighting it,
> but i can't seem to get rid of these patches.
>
> Why does this happen and how can you eliminate it?
>
> Maurits Dekker
Post a reply to this message
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Sounds like artifacts one gets when normals for vertices point in bad
direction.
I guess that utility that made your mesh-file screwed up some normals.
io175836 wrote:
>
> Hiya everbody
>
> I've created a complex smooth_triangle mesh with 90' corners in it. Wich
> worked perfectly fine exept for the fact that the mesh seems to darken
> at the edges of the mesh. I've tried every possible way of lighting it,
> but i can't seem to get rid of these patches.
>
> Why does this happen and how can you eliminate it?
>
> Maurits Dekker
Post a reply to this message
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