[def4d]

I used his "schéma" to place the things correctly, and i have shooted all the room to be sure i saw all the reflected light
So i try now to make the slit thinner and boost the light, thx Mihai

[Mihai]

I don't think you have the correct placement, for example look at the first ray reflection, in your example it happens closer to the lightgun, in Thomas example it's closer to the far tip of the prism.

[def4d]

Hindus: for the fun

Mihai: i check

[ivox3]

as in qewl .......that's so qewl! .....is that right.?

[jotero]

WOW very good work thomas however you can give the scene freely for all

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[Thomas An.]

Hi everyone,

I will put up a simplified version (with no bevels and stuff) for everyone to try.


def4d: I thnk the problem is the nature of the beam in your model. The beam needs to be very, very thin. It needs to be a thin long box (not a cylinder). I have a thin long box inside the cylinder.

Also the red beam is corectly displayed, because it has only the red wavelength. Thank you for trying it with monochromatic rays, because that was my next test. I wanted it to see if Maxwell would be tricked to disperse a red beam, but you answered this question. So it is all good

Another thing is... BEWARE the white beam will take a lot of time to disperse. This is not a quick test and maybe it is best suited for Maxwell 1.0 that has much much quicker caustics.

[jotero]

thanks thomas

[Thomas An.]

Hi all,

Here is a simplified version of this scene in DXF format.

Suggestion:

• Use ND=1.847 and Abbe=23.8
• Make the two joined faces of each prism dielectric
• make the remaining three joined faces into a black diffuse to prevent infinite internall reflections (and hopefully speed up times)

Download File

[def4d]

Thomas: i don't think my red test is a good answer for you, as i could't achieve the dispersion with white emitter:



Thx for the dxf, i'll see my mistakes

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[Thomas An.]

Thomas: i don't think my red test is a good answer for you, as i could't achieve the dispersion with white emitter:

Thx for the dxf, i'll see my mistakes

Did you try it yet using the DXF ?
Let me know.

Make sure the thin emitter is pretty strong (like 10,000 wats or so)

Thanks

[def4d]

Ok, i'll redo it when time/wife will permit
Manyway, thanks for your help, and for making all these so interesting subjects

[thedonmakaveli]

This is my result......why? why no dispersion on the wall?? the dispersion is on the side of the prism...why????I follow the thomas dxf and rendered for about 10 hours with 17 sampling levels reached...... why........
Thanx in advance....
TheDon

[Thomas An.]

thedonmakaveli,

You changed the geometry of the emitter box. Now your beam is out of focus. This will make the experiment fail.

Try it again without changing any geometry at all.