Indigo Renderer Forum

Oi!
I modelled a fresnel lens, put it in a triplet, and it worked! Not quite exact as the more voluminous counterpart, but it did!
green image is the fresnel, red the 'real' lens.

here the used setup, minus the blackbox:

Cool test!

umm i'm jw what are all of the lens types and wher i could find then cuz i would really like to model one but i can't find any like designs ro anythign and i guess i just ofund out tha fresnel was a lens...also

How you modelled the fresnel lens?
And with wich program?

Thank you,
Ricky

wow not to sure about how this is meant to work. but it looks amaaaazing!

greetz
mat

i dunno what its supposed to be o.O

ah okay so it´s an improved lense... all right... and what should we see? what exactly worked? the magnification or what!? o.O

Labello wrote:ah okay so it´s an improved lense... all right... and what should we see? what exactly worked? the magnification or what!? o.O

It is a kind of flattened lens, and I was just delighted to see it work. The triplet English,w/o image is a simple form of an objective, used in cameras or a slide-projector.
In the second picture you see the red and the green F's in the background, these are meshlights. The light then travels through the lenses and hits the canvas. The first picture is a capture of the canvas.
I modelled the lens (and the rest of course) in blender.
Used a circle a a helper object to match the shape of the lens, then put a 100 vert circle perpendicular to it, extruded it, resized it, and so on.
Then I flattened the lens layer for layer, adding a group of verts via loopcut each time.

amazing! But you need to also simulate the quality loss: chromatic dispersion

Thank you very much... I'll take a look.
Ricky

Kram1032 wrote:amazing! But you need to also simulate the quality loss: chromatic dispersion

Even if I did, you wouldn't be able to see it in the image. It is plain red and plain green light;p