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Questions about using light objects (point, sun, spot, and area), the world object, and shader nodes that have emission properties (principled, principled volume, and emission)

1 vote
Accepted

Weird Grey Circle in Background While in Camera View

You are showing Clip Start/End here: But it doesn't work in camera view. You can edit camera limits in camera data:
Crantisz's user avatar
  • 37.4k
2 votes

Realize Instances node does not work on Light objects

Sure. Realize instances converts geometry to mesh. But you can't convert lights into mesh. Use Ctrl+A ⇾ Make Instances Real, It will convert lights to real objects, that's can be exported
Crantisz's user avatar
  • 37.4k
0 votes

Is it possible to backlight an image plane?

You can disable shadows in object properties → Visibility → Ray Visibility:
Crantisz's user avatar
  • 37.4k
0 votes
Accepted

Lighting with draw mode

If you want your GP object not affected by light disable Use Lights on every GP layer: If you want white color to be exactly white, I think it is better to disable color management. To do this, set V …
Crantisz's user avatar
  • 37.4k
3 votes
Accepted

Transparent emissive objects glow effect not visible in rendered output files

Alpha channel is used differently in different types of software. In Blender, Premultiplied Alpha Method is used, the alpha channel indicates not the opacity of the layer, but how much light it blocks …
Crantisz's user avatar
  • 37.4k
0 votes

How to measure blender camera Dynamic range

OpenEXR format stores original linear color, without Filmic or any color management. For intermediate files in production, it is recommended to use OpenEXR files. These are always stored in scene lin …
Crantisz's user avatar
  • 37.4k
2 votes

Lights working only in render and not in viewport

Enable lights here in the shading popover:
Crantisz's user avatar
  • 37.4k
0 votes

Banknote is faded

Try using Standard View transform instead of Filmic:
Crantisz's user avatar
  • 37.4k
1 vote
Accepted

Multiply all lights power values at once

You can add the same amount of numerals to values by holding ALT and click-and-drag value slider left or right. The box becomes blue in this case: But I don't know the tricks to multiply values but m …
Crantisz's user avatar
  • 37.4k
4 votes
Accepted

Same material is giving different shades in renderd view

You have an array modifier with zero offset: This leads to overlapping geometry. I've already posted an answer about overlapping geometry here: Some parts of material appear darker than it should be
Crantisz's user avatar
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2 votes
Accepted

How do i edit the light spread on small scene? Or how do you increase the scale without ruin...

For EEVEE it is ok to set the light radius to 0. From your screenshot, I don't see that it is an issue, so thy limit light distance. You can limit the light by setting custom distance, which limits li …
Crantisz's user avatar
  • 37.4k
2 votes

Much more Noise in the whole scene with a Light Points?

Small point lights can add noise, because of internal calculations: I suggest disabling Multiple Importance for all unimportant lights, this should help, but I'm not sure, give a try. Also try set ra …
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  • 37.4k
4 votes

Light distribution measurements- Isolux curve for automotive lighting

These IES Photometric files, or IES Profiles, are a lighting industry standard method of diagramming the brightness and falloff of light as it exists a particular real world light fixture. … This type of photometric lighting is primarily used in Enterprise fields such as Media and Entertainment or Architecture and Manufacturing. You can use IES textures in Cycles in node editor. …
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0 votes
Accepted

Contact shadow distortion

Contact shadows is a screen space effect, which means that it uses only screen rendering information to make the effect, so it is not accurate. Try to reduce Thickness here: Or try to set up Shadow b …
Crantisz's user avatar
  • 37.4k
0 votes

Meshes appear darker when rendering with cycles

The problem is that you have faces that's located at the same position. Take a look at example. Here is the default cube in cycles: Nothing special. Now I duplicate the cube and move it in x directio …
Crantisz's user avatar
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