6
votes
Accepted
Align & Scale Light (Portal) to Face
A Python script to do that.
The tricky part (I think) is to make it work whatever the face is: orientation, number of vertices, concavities... I guess that in this kind of cases, we want the light to ...
- 53.4k
5
votes
Accepted
How to render an image the exact way its displayed in the vrendered preview
You show the Viewport Shading settings, these settings allow you to set what you’re currently seeing in your 3D View but they won’t be taken into account for the render. For exemple you’ve disabled ...
- 145k
5
votes
Accepted
Grazing angle translucency bug artifacts?
What you are facing is most likely the terminator effect. It happens mostly when there is only 1 light source that hits some of the faces at a grazing angle:
https://blender.community/c/...
- 2,849
4
votes
How do I make an object reflect light through a volume at a specific angle?
You can not solve this in an honest way. The implementation of Cycles engine does not allow this.
The bright light in the volume is visible only because the beam knows in which direction the sun is. ...
- 1,366
3
votes
New Spot Light behavior in 4.0 no longer renders in a volume
I originally voted to close this question as rather being a bug or even intended behavior which makes this question off-topic for this site.
In the meantime I found out the spotlight is actually ...
- 24.3k
3
votes
Accepted
Render looks much darker then in render preview
You need to deactivate the render visibility of the object called ToS beach_mesh sky:
- 145k
3
votes
How do I make an object reflect light through a volume at a specific angle?
The standard Blender renderers (Cycles and Eevee) aren't really suited to rendering the reflected volumetrics due to how the light paths are traced.
However, if you're only interested in determining ...
- 44.3k
3
votes
What's the shading algorithm behind Smooth Shading?
"Phong" and "Gouraud" are not always used consistently between sources. If we consider Phong shading to be a shading algorithm where the interpolation of vertex normal is used to ...
- 21.1k
2
votes
How to measure reflected light from 3D model in blender
If you use Cycles, save the output in EXR format; then, the units will be radiance in W/m2/sr. See: EXR output units.
- 257
2
votes
Accepted
What's the shading algorithm behind Smooth Shading?
As phong uses interpolated vertex normals this is the method used checking the docs of the source code.
source: https://github.com/blender/blender/blob/01a2bd03695f217616acc2581fe8746f5cd226d7/scripts/...
- 146
2
votes
Accepted
Stained glass window reflection not working
In your current setup the image gets lost, maybe make it simpler, like plug the image into the Transparent shader and plug the Transparent into the Output:
- 145k
2
votes
Why can I see the seperate shapes in the shadows? Is there a way to fix this?
What causes this problem:
Here are two curved surfaces:
I have tried my best to make sure that they transition very smoothly into each other. I have even applied a few subdivision. But then too, I ...
- 2,125
2
votes
Is there a way to change the color of the emissive object without changing the color and strength of the light
Guess I answered the question myself
I made the emissive objects transparent for the light (pic below) and backlit them with an outside light source
- 71
1
vote
Accepted
How to make glass dispersion behind a no dispersion glass? (cycles) and why light reflections is triangle in a round surface?
First of all, for the glass panel covering the core lens, the material setup makes no sense. With the Mix Shader's Fac set to 1, only the Glass BSDF will contribute to the output, so you can directly ...
- 24.3k
1
vote
How can i achive glow effect as show in reference image
In Cycles, Bloom is not available, but you can obtain a glow effect through the Compositor: Do a render, open the Compositor, enable Use Nodes and Backdrop, create an Output > Viewer (if you select ...
- 145k
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