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The Ivy Generator has been updated. And there is a Mac version too. Go to:
http://graphics.uni-konstanz.de/~luft/ivy_generator/
Thomas
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"Thomas de Groot" <t.d### [at] inter nlDOTnet> wrote:
> The Ivy Generator has been updated. And there is a Mac version too. Go to:
> http://graphics.uni-konstanz.de/~luft/ivy_generator/
>
> Thomas
Thanks Thomas, I have not seen this before it looks excellent..
Sean
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Seems to run a bit smoother, the planting point
shows up right...
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Attachments:
Download 'ivybox2.jpg' (38 KB)
Preview of image 'ivybox2.jpg'
![ivybox2.jpg](/povray.binaries.images/attachment/%3C4605f744%40news.povray.org%3E/ivybox2.jpg?ttop=443866&toff=3900&preview=1)
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"Tim Attwood" <tim### [at] comcast net> schreef in bericht
news:4605f744@news.povray.org...
> Seems to run a bit smoother, the planting point
> shows up right...
>
Yes, at least the normals orientation seems to have been corrected. Now they
point outwards standard.
There are still a number of issues in my experience:
- the erroneous inversion of the probability sliders will be corrected in
the next version, Thomas Luft told me.
- the leaf image_maps should be mirrored in order to show up right (also in
this version)
- there is an issue about the orientation. The imported support is mirrored
along the x-axis (try with an asymmetric object), and the exported ivy is
mirrored too along the x-axis. This is no problem with a symmetrical
support, but not otherwise.
I have contacted Thomas Luft about this.
Also, watch out for I-stack overflow and max_trace_level in your render!!!
Thomas
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"s.day" <s.d### [at] uel ac uk> schreef in bericht
news:web.4605bffcd01dc451675f1e2b0@news.povray.org...
> "Thomas de Groot" <t.d### [at] inter nlDOTnet> wrote:
>> The Ivy Generator has been updated. And there is a Mac version too. Go
>> to:
>> http://graphics.uni-konstanz.de/~luft/ivy_generator/
>>
>> Thomas
>
> Thanks Thomas, I have not seen this before it looks excellent..
>
Tim Riley should be thanked :-) He made us aware earlier this month. See
above, on the 15th of March!!
Thomas
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"Tim Attwood" <tim### [at] comcast net> wrote in message
news:4605f744@news.povray.org...
> Seems to run a bit smoother, the planting point
> shows up right...
>
>
nice!
How do you have to do the the texture mapping?
Is it possible to convert a pov scene to .obj ? via which tool?
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> How do you have to do the the texture mapping?
There are image maps in the texture directory...
After importing with PoseRay the materials of the leafs
need to be changed... remove the white background
layered texture, remove the transmit overloading and
mirror the image map in the z axis.
It's possible to create a black and white transparency
map for PoseRay, which renders OK as exported,
except it needs mirrored still... but the complex transparent
layered textures render at about half speed...
> Is it possible to convert a pov scene to .obj ? via which tool?
In general it's not really possible to export from pov
because pov supports more primitives than other formats,
and macros etc.
It's probably easier to create a "proxy object" with Wings3D
then use it as constraints for the ivy generator.
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I give up. I made my object in Wings3D, imported into the Ivy Generator,
and went back through Wings again to export it to POV. But of course, all
I get is a bunch of white triangles for leaves. How do I get the leaf
texture properly applied to each individual leaf?
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"Kirk Andrews" <kir### [at] hotmail com> schreef in bericht
news:web.4607628ad01dc4512577d2d70@news.povray.org...
>I give up. I made my object in Wings3D, imported into the Ivy Generator,
> and went back through Wings again to export it to POV. But of course, all
> I get is a bunch of white triangles for leaves. How do I get the leaf
> texture properly applied to each individual leaf?
>
Use Poseray!!
Load the ivy object in Poseray, fix the image_maps in the Materials window,
and export to POV-Ray. That is all there is to it. And Poseray is free, so
nothing there to hold you back :-)
Thomas
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"Tim Attwood" <tim### [at] comcast net> schreef in bericht
news:46072b99@news.povray.org...
> After importing with PoseRay the materials of the leafs
> need to be changed... remove the white background
> layered texture, remove the transmit overloading and
> mirror the image map in the z axis.
>
Tim, what do you mean exactly by 'transmit overloading'? After editing, also
commenting out the pigment{Clear}, the texture should look like this',
shouldn't it?
#declare leaf_adult__opaque=
texture{pigment{uv_mapping p_map1}
finish{specular 0.2980392 roughness 0.09632328 ambient rgb <0,0,0>
reflection{0 } conserve_energy}}
#declare leaf_adult_=
material{
texture{pigment_pattern{uv_mapping p_map2}
texture_map{//[0 pigment{Clear}]
[1 leaf_adult__opaque]
}}
}
Thomas
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