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46 votes
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Volumetric Windows 10 logo effect

Emulate light scattering using a volumetric emission shader Using Volumetric scatter produces the most accurate results but required a considerable number of render samples to get satisfactory ...
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21 votes
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How to render an object without its shadow?

One option is turning off the Shadow property per object (Properties > Object > Cycles Settings): As of Blender 2.8x the Cycles Settings panel has been renamed to Visibility and the Shadow property ...
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18 votes

What is a shadow ray?

A shadow ray is the last segment on the light path traveling through the scene (from camera to light source). It is just a technical term, only a label. In a nutshell it marks anything that goes to ...
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18 votes

Is there a way to adapt False Color to be seen for color blind people?

The False Color view transform is defined in the filmic_false_color.spi3d and referenced by the OCIO configuration in config.ocio...
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17 votes
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Make an object not cast a shadow in eevee

Yes, by setting a material to an object and in properties panel choose Materials > Setting > Shadow Mode : None
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  • 7,338
15 votes

How to make Shadows-Only Render

While Shady Puck's answer covers making a true shadow-only render, here is my approach to creating this type of render using the Cycles Toon shader in combination with a shadow pass and some manual ...
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15 votes
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Objects, shadows and reflections not rendering in EEVEE

As Jaroslav mentioned in his comment this is an intrinsic limitation of EEVEE's rendering system, and in fact a broader shortcoming of screen space effects in general. Since they are, as the name ...
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14 votes

How to change the shadow color in Blender Cycles?

With the Cycles renderer enabled select the cube, give it a new material and set the material nodes as pictured below. Use the Is Camera Ray of the Light Path node as a factor for mixing the Diffuse ...
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14 votes
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How to hide object but keep shadow in EEVEE?

EEVEE now supports some Light Paths but not all seems to be supported yet, or in working order. Until then, use this workaround. Add a Transparent shader to the object's material. Under the ...
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13 votes
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How to make Shadows-Only Render

Image: Stylized shadow only pass: Preparations Go to the Properties panel > Render tab > Film dropdown and check Transparent. Go to the Properties panel > Render Layers tab > Passes dropdown and ...
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  • 8,585
13 votes

Volumetric Windows 10 logo effect

You should look at the sunbeam node in the compositor - after render, you can add several filters and color mix nodes, but a really good way to get this effect seems to be with the sunbeam node to ...
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11 votes
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What is Clamp Direct/Indirect?

Clamp puts a limit to the intensity of light bounced directly and indirectly by surfaces. It can be used to prevent the annoyoing "fireflies" (random intense pixels in your render) but it is advised ...
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  • 2,150
11 votes
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Shadow Incorrect at Bottom of Edge

Use 'contact shadows' (Eevee) in the lamp settings:
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11 votes
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Contact shadows on glass ( INSIDE view )

Maybe a Boolean? Duplicate the window pane as a non-rendering cutter object Give the cutter the 'pressed skin' material Ensure the cutter and the pressed object have both 'pressed skin' and 'skin' ...
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10 votes
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How is Cycles different from V-Ray?

V-Ray and Cycles use similar methods to light a scene (path tracing, global illumination). The differences is in their implementation and ease of use. In cycles we define materials using "nodes". V-...
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10 votes
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shadow clipped when zoom out ( eevee )

I guess you are using a Sun lamp? Have a look at the Max Distance under the Cascaded Shadow Map.
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10 votes
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Why are my object's shadows so janky?

The reason this mesh has strange shading is because of the topology. Polygons which are made of more than 4 vertices are called ngons. These ngons are pretty extreme in your mesh as you can see. ...
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9 votes

How can I fix this jagged Shadows?

You can increase the size of the Cube texture for the light and check Soft Shadows. Shadows in EEVEE are created by rendering a depth texture from the light source that are then matched up with the ...
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9 votes

Shadow terminator artifacts issues

Edit 2021-11-26: a better solution is available as of Blender 3.0, added to the answer below. Blender 3.0+ A setting called Geometry offset is enabled by default, ...
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  • 424
9 votes
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Fixing shadows in cycles without increasing subdivision

Using 2.90.1+ version of Blender, in Cycles rendering, you can change the shadow terminator offset: This is per object, in the object property panel. A link to the documentation.
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7 votes
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Emission plane is casting a shadows in cycles

They are not casting shadows, they only emit light from the faces, not form the edges. You can try to extrude the faces, but even so, the faces on the edges won't emit enough light to match the one ...
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7 votes
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How to get rid of internal shadows/blackness in glass/transparent/refractive materials?

I see you have Transmission bounces set really high, but I think one of the causes might be a lack of Glossy bounces which is actually what handles all the reflections on the Glass shader. Without it, ...
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7 votes
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Faces shading looks strangely segmented after extrusions

The issue is that you extruded faces which edges were marked as sharp (hence the light blue lines), so the extruded geometry kept those properties. To fix that, select the concerned edges in ...
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  • 8,074
7 votes
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Shadows on alpha channel PNG's and eevee

You have to change some of the material's options : It works for me with Blend mode to alpha blend, and transparent shadow to clip.
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  • 8,074
7 votes
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Creating curved grid with triangle windows

The shading issue is coming from the subdivision modifier trying to average out all those cuts into the surface. The explanation for how to resolve that issue is a bit lengthy so please bear with me. ...
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  • 4,567
7 votes
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Can I colorize hair particles based on the Emitters Shading?

Transfer Normals on Instanced Particles Theory: Currently I don't think there's an easy way to pick the value of the shaded surface of another mesh and transfer to the built in hair strand, but we can ...
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  • 24k
7 votes

I'm trying to recreate my logo in Blender but I'm out of ideas

This image shows every sign of being a negative. (The light is acting as a shadow.) You could use negative lights.. but that might be a bit confusing. Here, some faces of the logo-object have been ...
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