Hi, pretty new to Three.js! In Babylon.js, I was using a GlowLayer to prettify the glowing effect on my material. It is applied on the emissive map/emissive color and not on the color map/base color. So for example, if you want a drawing to glow on your color map, it can be done: [379640225_357995…

Some people just want to watch the world burn … in extreme glow. Here you go: https://codepen.io/boytchev/full/XWoVZYK [image] PS. I’m not good with glows, so most likely you can write much better code if you look how the selective bloom is implemented.

I’ve got this result :slight_smile: Demo: https://codepen.io/prisoner849/full/WNLdMpP

[image] Shutterst0ck: UnrealBloomPass is applied on the color map/base color OP is right. @prisoner849 [image] The glow in the red shouldn’t be there, since the emissive value of the box itself is 0. It may depend on your monitor if the effect is obvious or not, but the feature generation…

Thanks for all the insights! I’m a noob in Three.js, so it’s going to take me quite some time to analyze all of it :raised_hands:

[image] Harold: The glow in the red shouldn’t be there, since the emissive value of the box itself is 0. It may depend on your monitor if the effect is obvious or not, but the feature generation pass that extracts bright colors from the source image should only extract values above 1.0. In th…

Oooohh my… Now i feel a bit dumb… I never thought about metallic reflections or specular highlights in this use-case. That makes a lot of sense! Thanks for the insight :smiley:

The bloom acts on the whole color buffer. That’s why in my demo I separated the renderings: one (composite) rendering of only the emissive areas + bloom effect separate rendering of the base object (without any bloom) both are then combined

Does the line 102 blending: THREE.AdditiveBlending make the glowing of the first rendering go threw the second rendering?

The second rendering (the cube) is added to the first rendering (the glowing emission). Comment line 135 to see only the glowing effect.

When I comment line 102, the glowing effect disappears, that’s why I’m asking if the line 102 works this way or not

Glowing effect on emissive map and not on color map

Questions

prisoner849 September 25, 2023, 9:10pm 24

Any chance to provide a working live code example of what you’ve got?

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Glowing effect on emissive map and not on color map

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