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It's a Braun fan. Modeled mostly in Blender. The stand was also modeled in
Blender, but when I added a transparent color, rendering times became too long
(as in stuck at 0% for > 24 hours). So I remade the stand in Povray SDL instead.
Now render time is about 5 minutes. What is it about transparent meshes that
causes rendering times to slow down so much?
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I suppose I should add an image...
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"jhu" <nomail@nomail> wrote:
> It's a Braun fan. Modeled mostly in Blender. The stand was also modeled in
> Blender, but when I added a transparent color, rendering times became too long
> (as in stuck at 0% for > 24 hours).
0% for 24 hours? I suppose that only pov-ray has this behavior. Because I often
notice that it rendered CSG slower than mesh.
> So I remade the stand in Povray SDL instead.
> Now render time is about 5 minutes. What is it about transparent meshes that
> causes rendering times to slow down so much?
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> It's a Braun fan. Modeled mostly in Blender. The stand was also modeled in
> Blender, but when I added a transparent color, rendering times became too long
> (as in stuck at 0% for > 24 hours). So I remade the stand in Povray SDL instead.
> Now render time is about 5 minutes. What is it about transparent meshes that
> causes rendering times to slow down so much?
>
>
>
Tranparency in mesh should not cause such a slowdown. Maybe there was
LOTS of triangles located inside the mesh, hiden by it's opacity...
Try placing that problematic mesh in a merge to see if the slowdown
still occurs.
Alain
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Alain <kua### [at] videotron ca> wrote:
> > It's a Braun fan. Modeled mostly in Blender. The stand was also modeled in
> > Blender, but when I added a transparent color, rendering times became too long
> > (as in stuck at 0% for > 24 hours). So I remade the stand in Povray SDL instead.
> > Now render time is about 5 minutes. What is it about transparent meshes that
> > causes rendering times to slow down so much?
> >
> >
> >
>
> Tranparency in mesh should not cause such a slowdown. Maybe there was
> LOTS of triangles located inside the mesh, hiden by it's opacity...
> Try placing that problematic mesh in a merge to see if the slowdown
> still occurs.
>
>
> Alain
Just made a merge. Same problem: rendering remains stuck.
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On 14-5-2014 2:03, jhu wrote:
> What is it about transparent meshes that
> causes rendering times to slow down so much?
That's bizarre to say the least. Could you post that mesh so that we can
have a look at it? I cannot imagine it being slower than csg.
Thomas
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Thomas de Groot <tho### [at] degroot org> wrote:
> On 14-5-2014 2:03, jhu wrote:
> > What is it about transparent meshes that
> > causes rendering times to slow down so much?
>
> That's bizarre to say the least. Could you post that mesh so that we can
> have a look at it? I cannot imagine it being slower than csg.
>
> Thomas
First, I'll post an image with better lighting.
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Posted the scene file in misc. Although, now that I examine the blender file, it
does look like I have several of the transparent pieces within each other. I'll
see if I can separate those and report back.
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"jhu" <nomail@nomail> wrote:
> Posted the scene file in misc. Although, now that I examine the blender file, it
> does look like I have several of the transparent pieces within each other. I'll
> see if I can separate those and report back.
Aha! Edited the blender file so entities aren't inside each other for the
transparent parts. Now the scene renders to completion!
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On 15-5-2014 17:30, jhu wrote:
> Aha! Edited the blender file so entities aren't inside each other for the
> transparent parts. Now the scene renders to completion!
>
Yeah, that can make a huge difference indeed.
Thomas
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