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I want to make a lightsaber where the edjes/sides are more red and in the middle it is white, so I tried using the layer weight node with a color ramp and I got a nice result when looking from the front, but when I look sideways its all red without any white in the middle (first picture). (My material nodes are shown in the second picture). Any solutions? I have another idea but I don't think it will look that good. I was thinking to add bloom in the final render and use only an emission shader with red color and strength a big number like 200 so it would look white, and the bloom would add that red color around it.first picture

second picture

I am using cycles

Godzilla
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    For realism, I'd suggest going for your second idea - ie, a bright emission shader with bloom/fog glow added in the compositor. This will almost undoubtedly produce more 'realistic' results that trying to fake it with layer weight or similar. I suppose one consideration would be whether it's for a still image or animated - if 'still' then you could potentially tweak the faking so as to look good under your specific situation. If it's to animate then you want something that will work in a wide range of situations - so the 'real world' solution (bright emission with fog glow) will be better. – Rich Sedman Jul 14 '20 at 09:28
  • I've made light sabers before, and the super bight emission (200 or so) always works well for my purposes. Always white in the center, with the appropriate color glow. – Christopher Bennett Jul 14 '20 at 10:12

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enter image description hereIf you set the emission to a large number, it will shine very bright in the scene on other object, which you may want, however, I used a fresnel input to find the outer edges and used a color ramp to convert them to red and white.

Jelly
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