Cant face my lights in the right direction

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Rhino 3D (Export script developed by SamPage; Integrated Plugin developed by Paul Kinnane)

Cant face my lights in the right direction

Postby alfabruce » Sun Mar 11, 2018 1:24 am

alfabruce Sun Mar 11, 2018 1:24 am
light question 1.jpg
light question 1.jpg
I need some help getting lights to face in the right direction.

I am using a flat plane as the emitter in the model
I have used a black b ody emitter
I have set the texture to RGB colour and set blue for an underwater look
Distribution is set to an RGB image and I have loaded an ies file
UV transform is set as standard
Projection is SPHERICAL (should it be UV or linear but these don’t seem to make a difference)
When I use the rotation input I can only rotate in one direction side to side but cant rotate forwards and backwards no matter how I set the XTZ, ZXy etc.

Any ideas would be great.

Also, it would be great to have some standard lights and targets as an option. A spot light, point and directional light with some targets to make them easy to place would save so much time.
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20.png
light question 2.jpg
alfabruce
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Re: Cant face my lights in the right direction

Postby face_off » Sun Mar 11, 2018 7:37 am

face_off Sun Mar 11, 2018 7:37 am
To rotate the IES light, use the X and Z sliders of the Rotation pin in the Sphere Transformation node.

Paul
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Re: Cant face my lights in the right direction

Postby fabrizio_s » Sun Mar 11, 2018 11:46 am

fabrizio_s Sun Mar 11, 2018 11:46 am
Hi Alfabruce,
I agree with you. We need absolutely more type of lights in Rhino plugin. For me this is one of the most important feature that I would love to see in the next release.
I inserted my "wish" in the Feature Request.

https://render.otoy.com/requests/?qa=24 ... ight-panel

Bye
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Re: Cant face my lights in the right direction

Postby face_off » Sun Mar 11, 2018 9:12 pm

face_off Sun Mar 11, 2018 9:12 pm
I agree with you. We need absolutely more type of lights in Rhino plugin. For me this is one of the most important feature that I would love to see in the next release.
Octane requires light to be emitted from a physical object - so a Directional Light is not really applicable (unless you use an Area Light a long, long, long way away). Similarly, Spot Lights are non-trivial, and would require actual geometry to control the softness, etc, and IMO it would be easier to simply use an IES file. A point light is possible, done by creating a very small sphere.

Paul
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Re: Cant face my lights in the right direction

Postby fabrizio_s » Mon Mar 12, 2018 4:08 pm

fabrizio_s Mon Mar 12, 2018 4:08 pm
Hi Paul,
yes I know that Octane requires light to be emitted from a physical object. But I think that every render engine needs fast and simple way to light a scene. And ies are not so easy, fast and versatile to use.

bye

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Re: Cant face my lights in the right direction

Postby formatio » Thu Mar 22, 2018 6:38 am

formatio Thu Mar 22, 2018 6:38 am
Hey Guys, don't forget that this is an unbiased engine - using "artificial" light sources would bias it - that is why they are not present.

Using IES lights btw is super easy for me:)

Regards,
Mac
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Re: Cant face my lights in the right direction

Postby fabrizio_s » Thu Mar 22, 2018 11:08 am

fabrizio_s Thu Mar 22, 2018 11:08 am
Hi Mac, ies is easy to put in the scene but every ies has a distribution so I can't control the cone of the light in a simple way.

A software very very similar to Octane can control the cone and the softness of the light. I can not say the name of this software or I risk being deleted from the forum :-)

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