Blender Stack Exchange
Blender Stack Exchange

Questions tagged [light]

Use this tag for questions about light, lamps, background lighting, emission materials, or light in the compositor, no matter which render engine (currently EEVEE or Cycles) you are using.

Blender has these ways to generate light:

Use this tag for questions concerning any of those topics or other lighting related issues.

1503 questions
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Area Light vs. Emissive Polygon

Both an area light and an emissive polygon can be used to create lights. What is the difference between the two?
Vader
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Spotlight with Halo applied is creating rings around light

Here's a portion of a render I'm working on, which is backlit from behind by a spotlight with a "Halo" effect applied: If you look carefully in the background, you'll notice the halo effect is creating "rings" of shadow as it fades. How can I…
Nathan Friend
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Why is my spot light not working?

I'm trying to follow along with a blender beginner tutorial, and I'm having trouble with spot lights. All other lights seem to work fine but I can't get spot lights to work. Light isn't really doing anything to the scene, I can delete it and it'll…
mlamp
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7
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3 answers

Spherical gradient for spot light

I know how to create spherical gradient textures for objects and I also know how to assign image and radial gradient textures to spotlights. I am struggling however with the spherical gradient on spotlights. EDIT: This is not a duplicate of the IES…
qwazix
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5
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Have two lamps blend together to give another color on a face

I am working through Blender 3d Basics by Gordon C Fisher. I'm on page 72. I have a green light and a red light but no yellow as pictured. Can anyone explain what I am doing wrong? Or better, What to do to get the yellow color on the cube? It is…
Leonardo-Paradox
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How to avoid dark/black area in blender when using hemi?

I use blender to render patent images, which require "black and white" drawings. Hemi is very handy because 1 hemi lamp is enough and no shadows. But this time I got this: After using gimp Edge detect -> Revert colors -> Auto-crop image ->…
jon doe
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4
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1 answer

Is there a way to numerically position sun in sky texture?

I'm creating a scene set in a real-world location and require the sun to be at exact locations for the day, however, I can't seem to find a way to precisely control the sky texture's sun position. Is this possible with nodes or anything?
Danial
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4
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Lighting on triangles - every other one is darkish

I have a mesh in Blender, imported from elsewhere. You can see individual triangles on it in a funny checkered pattern, like this: This is consistent with a popular bug where every other triangle is inverted, and you see half of them from the…
Seva Alekseyev
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4
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1 answer

Transparent laser focus

Did I understand the answer in this post correctly? It says that due to the fact that volumetric lighting is not implemented yet, creating a transparent laser focus with visible molecular spheres in it is not possible? Right now I'm trying to see a…
Stefan Bollmann
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How do I remove light from Material Preview Shading in the 3D viewport?

How do I remove light from my viewport so it's completely black? I have deleted the light and adjusted world settings. However, there still seems to be some light.
Blenderinho
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4
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Lamp VS. Emission Object (difference)

Yeah, simple as that. Why do most of the people use a plane which emits light (in most cases) and not a lamp? What's the difference between them? When do I use a lamp and when the emission node? Thanks in advance.
b0dan
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2 answers

How can I make a cone of light be more realistic?

Any way I can make the light more realistic? Probably just a bit less opaque. Probably some tips to reduce noise too, thanks! The light is a cone with the nodes on the left. Lit up with spot. Made in cycles.
Blenderinator
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2 answers

How to have emission plane light the scene including glossy objects but not show up in glass reflection?

Using Cycles. I have lit and rendered 20 different objects with the same lighting set up. Now using same setup to render a glass object, as part of the series. However the emmissive plane used for lighting is now showing up in the glass reflection…
sliver
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How can I achieve an "blinded by light" effect?

First of all, the term I use is definetely not a good one, so as soon as someone know how to describe it please tell me so I can correct it (or correct it directly) I have a box in the middle of my scene who emit light more and more I as move…
eephyne
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3
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Gradient glowing object - how to?

I need to create a sphere, which emits lights, which affect to other objects. But the problem is: i need sphere to look like on the picture - center is always with one color and edges are glowing with another. And this should not affect color of…
user64675
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