Empathy List Archives

R

rickan

Fri, Aug 14, 2020 5:13 PM

Seems like there were some on this thread who wanted what might be called
flat, all-around or ambient lighting such that the orientation and view
angle do not affect apparent face colors. I also want to request an option
like that.

I'm creating an optical illusion and shadows give it away so without this
option I have to adjust the face colors to compensate for the shadows. Seems
a shame to have to do that when a flat lighting option would obviate that
considerable effort.

--
Sent from: http://forum.openscad.org/

Seems like there were some on this thread who wanted what might be called flat, all-around or ambient lighting such that the orientation and view angle do not affect apparent face colors. I also want to request an option like that. I'm creating an optical illusion and shadows give it away so without this option I have to adjust the face colors to compensate for the shadows. Seems a shame to have to do that when a flat lighting option would obviate that considerable effort. -- Sent from: http://forum.openscad.org/

TP

Torsten Paul

Fri, Aug 14, 2020 5:18 PM

That might fit into that feature request:

https://github.com/openscad/openscad/issues/3339

ciao,
Torsten.

That might fit into that feature request: https://github.com/openscad/openscad/issues/3339 ciao, Torsten.

NH

nop head

Fri, Aug 14, 2020 5:32 PM

The problem with flat lighting is all the faces would be the same colour,
so you would not be able to see any edges. The same happens when you use
the orthogonal projection and view something from above. Something like a
blind hole becomes completely invisible.

On Fri, 14 Aug 2020 at 18:19, Torsten Paul Torsten.Paul@gmx.de wrote:

That might fit into that feature request:

https://github.com/openscad/openscad/issues/3339

ciao,
Torsten.

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The problem with flat lighting is all the faces would be the same colour, so you would not be able to see any edges. The same happens when you use the orthogonal projection and view something from above. Something like a blind hole becomes completely invisible. On Fri, 14 Aug 2020 at 18:19, Torsten Paul <Torsten.Paul@gmx.de> wrote: > That might fit into that feature request: > > https://github.com/openscad/openscad/issues/3339 > > ciao, > Torsten. > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >

R

rickan

Fri, Aug 14, 2020 11:51 PM

Here's the illusion:

Illusion.png http://forum.openscad.org/file/t1112/Illusion.png

It's a view of 12 of the 30 faces of a rhombic triacontahedron.

If the lighting weren't so extraterrestrial, I would not have had to make it
so dark, but it didn't turn out to be all that difficult to calculate the
colors needed to produce this, and, now that I've made it, I see that it
works better breaking the illusion by rotating the view with lighting that's
not flat:

DisIllusion.png http://forum.openscad.org/file/t1112/DisIllusion.png

--
Sent from: http://forum.openscad.org/

Here's the illusion: Illusion.png <http://forum.openscad.org/file/t1112/Illusion.png> It's a view of 12 of the 30 faces of a rhombic triacontahedron. If the lighting weren't so extraterrestrial, I would not have had to make it so dark, but it didn't turn out to be all that difficult to calculate the colors needed to produce this, and, now that I've made it, I see that it works better breaking the illusion by rotating the view with lighting that's not flat: DisIllusion.png <http://forum.openscad.org/file/t1112/DisIllusion.png> -- Sent from: http://forum.openscad.org/

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Re: [OpenSCAD] lighting angle?