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Questions tagged [light]

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Questions about light, lamps, lighting and lighting issues.

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Blender Preferences Lights- Studio Lights edit default when starting new scene

Youtube video showing issue and questions Basically I am looking for a way to edit the default viewport shading studio light setup. In the upper right when you launch Blender you have the viewport ...
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21 views

Why my render looks all lumpy?

So I made a Render animation that looks... fine for me in Blender 2.92 (first image). Then I decide to make the 2nd scene with a copy of the .blend archive. The big diference between the 2 scenes is ...
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How can I increase the direct light intensity and keep the indirect dark for a particular shader without the compositor?

I’ve been banging my head trying to figure this out. In the attached image, you will notice that there are two versions of the black glossy shader. On the top is a normal glossy shader (zero roughness)...
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1answer
18 views

Light problem with shade smooth

Hello there fellow blender people! I am new to blender and I have this problem with light... When I shine light on a "shade smooth" wall trim, it does this weird thing. I don't know how to ...
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Blender 2.9 Light Power Driver Formular always returns 0

I try to add a driver formular for lights which should result in heart beat like pulsing. In general when I only use #frame*800 it works. But when I use a "complex" formular it is always ...
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1answer
21 views

How to render objects only with their materials diffuse color or without lighting

I am currently trying to write a python script with bpy and Blender 2.9 to render images of a couple of thousand wavefront objects with material information. I only need the "true colors" of ...
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1answer
27 views

My object becomes darker during animation

I have made this animation: https://i.imgur.com/qXzYD8o.mp4 Each frame consists of an object that has been generated independently using python. These objects are isosurfaces of a function at ...
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32 views

Volumetric church window effect [duplicate]

I would like to use the attached texture as colored window glass. I found the following tutorial for this, but I can't follow it pretty early on ("Assign a material and add the following nodes&...
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1answer
31 views

I can't see my spotlight in the final render, I'm new to this, btw

Basically I'm starting out in Blender, doing some bouncing ball in 2D and a moving 3D cube, nothing fancy. In the final render I can't figure out why in the world I can't see the light source, could ...
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0answers
17 views

Freestyle line thickness based on lighting?

Is it possible to have a freestyle line render thin where the underlying geometry gets a lot of direct light and thick where it's not getting any direct light? I'm using a single light source in the ...
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1answer
37 views

How can I solve this shadow problem?

Every shadow is working well until I separate the objects, pictures: My method when separating: select faces on the mesh inset faces a little bit select the inner faces separate it from the original ...
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26 views

Viewport shading has no light even though there's light [duplicate]

The viewport shading is just grey, with no light even though there are a few lamps in the viewport. Can anyone explain why? As you can see, the black vertical line down the middle is the sun lamp ...
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1answer
473 views

Desaturate colors around lightsource

I'm still new to Blender and I just found out that lights have a nodes option and that there are many things you can do with them. I am working on a render but I have an issue with an area with ...
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1answer
50 views

Trouble getting video as plane to show it's image [duplicate]

I've imported a .mp4 video as a plane in object mode so that I can point the camera at it and animate some 3D objects in front of the video. The image of the video won't show up though (it remains a ...
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1answer
33 views

why ies light not emitting?

Creating false ceiling. The circular light having the ies lights, Same material used to the rectangular light. Why there is no emission on the rectangular panel. I have check the rectangular panel are ...
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viewport and final render doesnt match up, HDRI doesnt show up [duplicate]

so im a newbie in blender and i dont know what happened to my scene, but my hdri doesnt show up in the final render while it works just fine on the viewport. Please help me, Thank you. viewport: ...
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24 views

Lighting inside transparent material is not working ideally. (Cycles, Ray Visibility Uncheck shadow not working)

I am creating a house exterior and setting lighting from inside the house. However, the point light through the glass (transmission = 1.0) looks like a ball along with its radius. Could you please ...
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19 views

Light leaks in shadows

This happens all of the time, even with other modeling programs (UModeller and Probuilder). I suspect it is a Unity problem, and I have asked there, as well. I have checked all seams, especially ...
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1answer
42 views

Removing light source on a reflective surface

I want to have a reflective floor, but have it not reflect rays coming from a light. Using Blender 2.91, Cycles. I want the light to create a glossy rim light on the object in the scene, so I don't ...
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30 views

Rendered image is missing light/shadow

I've created a simple propeller in Blender, and I want to export it as a .png file. I'm using Blender version 2.91.2. The problem is that the lighting/shadows aren't visible when I do that. What I ...
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53 views

Where are these 'flares' coming from? New User

I'm getting these 'flares', for lack of a better word, appearing all over my camera viewport and rendered animation. They come in just about every colour you can imagine and I can't for the life of me ...
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1answer
19 views

Black patches on meshes that use transparency [duplicate]

I have imported a model that was generated by Mineways, a software that can convert Minecraft worlds into 3d models. Then I also loaded up the material using the MCPrep addon, but now I have suddenly ...
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18 views

Light reflects in Glass Object: Different result after rendered

I have made light bulb. However Cycles render result came different from what I see on Viewport Shading. Could you advise how I can make rendered image as same as Viewport Shading? I set emission on ...
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14 views

How to create a internal IES Light with with python?

I'm trying to make an add-on that brings IES Lights with pre-assigned properties. A part of this is also creating an internal library in blender for ies lights. I so far was able to download a default ...
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1answer
54 views

How to use flat colors to determine how a scene looks? I want no shadows just colored shapes

Is it possible for blender to just use colors to determine how a scene looks? I want no shadows, just the colors, like in after effects but 3D. I´m trying to replicate the following:
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17 views

Spotlight shines through geometry

I have created a lighthouse with a spot light which rotates. The spot light is enclosed inside geometry, the front of which is transparent glass but the back is opaque. In order for the lighthouse to ...
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11 views

Light point doesn't show in Eevee

I am currently working on a thumbnail for an animation I am making. The animation is already half rendered (in Eevee). Now I am trying to add a light bulb to light up the characters in the thumbnail, ...
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1answer
28 views

How can I convert multiple faces of an object to light? [duplicate]

I have create this spiral LED lamp. The cylindrical part of spiral has six faces. Four of them (back) are the non-transparent part and the rest two (front) supposed to be the plastic cap of the LED ...
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21 views

Let reflections and shadows continue over edges

I've been trying to get this to work for a few days, but I can't seem to find out how. I want to have an object with two colours (materials) reflect light seamlessly. These objects are generated ...
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1answer
28 views

How can I higlight an object so that it won`t affect other nearby objects?

I tried all types of lights and tweaks but they spill too much on other objects thus making those overexposed. What could I do? I work in Eevee
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1answer
19 views

How to get solid shadows cast from obstacles?

I need clear shadows from the blinds on my character. There are some shadows, but they are very scattered, which, of course, do not seem to exist. What I've already tried: 1 - Move the blinds point-...
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0answers
9 views

What is the right way to use baked lightmap in Cycles

I've confused how lightmap is used in Cycles to speed up rendering, 1.Is it a proper way to bake every objects its own lightmap, or bake several objects into one lightmap, what is the pros and cons? 2....
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0answers
26 views

Lighting problem of faces [duplicate]

I've created a building model with a architecture software (Sweet Home 3D) and on the generated .obj object I have this problem: the flat walls are divided around windows and doors and look curved or ...
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1answer
39 views

Why is lighting broken while using shade smooth? [duplicate]

I have a problem with my mesh (blend file at the bottom), I want to connect these two sides of the object so the mesh creates something like a loop. Mesh is fine and smooth if those sides are not ...
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28 views

Everything in the render tab is covered in blue

I am trying to render an animation but everything is blue. I've added lights but no dice.
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2answers
44 views

light bleed through window

I'd like to get my light to bleed through the window and create a soft edge effect around the window frames. Here is an example image I found that shows my desired effects. The light seems to pour in ...
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3answers
517 views

How to change a mesh into light

Are there any way to change a mesh completely into light? If then are there a way to give it multiple colors. Any render engine will work thanks
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1answer
43 views

Copy light location in relation to object

I am just starting out with blender and could use some help. I imported an .fbx from Revit and it works great. I have some streetlights in this project and when i change one of them in blender then ...
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2answers
53 views

How to get that realistic palm leaf shadow?

I want to have a shadow of a palm tree leaf on my product in Blender (cycles). Something like: I want this to look realistic, is modelling the leaf the best way to go about this? Is there any other ...
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2answers
92 views

How make glow in Compositing if emission is behind glass?

Why I can't make glow in Compositing in Cycles if emission is behind glass? If use Glare, everything in picture will be glow, but I don't need it. I need only certain parts to glow, for example, like ...
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1answer
27 views

Identifying the source of unexpected lighting differences

I am seeking out ideas for why the darkened areasof this .gltf behave so differently with lighting than the other surfaces. Specifically the lower molars, and the tongue facing surfaces of the lower ...
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1answer
33 views

Donut tutorial : Unexpected lighting behavior

I am following the Blender Guru donut tutorial and I've ran into an issue. My camera view is diagonal and I have to put two brick walls into the scene. One of them is lighted correctly, but the second ...
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1answer
46 views

Weird light around my meshes in Cycles rendering

What could be source of this weird orange light around cookies and what could be fix? I am using Cycles render and CPU(I have old GPU which is not supported in Blender 2.9 anymore). I am talking about ...
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0answers
21 views

Is there a dynamic light-amount dependent material change node setup?

I have a mountain scene and I want to reduce snow only from the bright areas of a plane. Is there a way to do this dynamically, so I dont have to use vertex paint, and it reacts to light change? Like ...
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29 views

How do I render a totally black silhouette?

Hi I need to render a mesh totally black - the single object does not have to interact with the lighting. How to do that?
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13 views

Unlink lights animation data - does not work

It seems to be not possible to unlink animation (power) for 2 or more lights (point lights) previously linked with Ctrl-L > Link Animation Data Selecting the light and choosing Make Single User - ...
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0answers
8 views

My model is not showing correctly in the viewport [duplicate]

I´ve been working on this model for some time now, i added some materials and added light, it had been working just fine , until i loaded the project today and my model is now like this... Thanks for ...
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34 views

Emission glow through glass materrial

How to create a emission material that will glow through glass material in Cycles render? (volumetric light) I have attached the project file here: https://drive.google.com/file/d/...
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Eevee random flickering?

I’m trying to render this scene and because of the pixelated lightning I had to tweak volumetric settings. Whenever I make tile size lower than 16 px in Volumetric settings, I get these circular ...
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16 views

Low roughness shows weird outlines in cycles

So basically, I am making a model with about 0.3 roughness. I noticed though when rendering, that this weird pyramid thing appeared I played with the values and discovered the only way to make it ...

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