Coefficient

https://preview.redd.it/gheftj8n0pkf1.jpg?width=1000&format=pjpg&auto=webp&s=475c10e7860e243933e3de6e87a1f7ed8d3536ca

Absorption Coefficient drives the density of the volume object. The higher the value, the more opaque and the darker the volume becomes.

It’s recommended by Maxon to modify the Scatter and Absorption coefficients by the same amount.

Tint

https://preview.redd.it/qxyvficp0pkf1.jpg?width=1000&format=pjpg&auto=webp&s=bd860e6019671bf99167c353dba70f9b4e7e6c79

This option is used to change the absorption color of the volume.

Absorption Scalar Ramp

https://preview.redd.it/sq7c8f9r0pkf1.jpg?width=1000&format=pjpg&auto=webp&s=6e9af9eaff256bd5e3a88507fb9716d7e8e45366

You can use the Absorption Scalar Ramp to have more advanced control of the opacity or the color of the volume object based on the density value. It works similarly to the Scatter’s ramp.

Color Channel

If you already have an Open VDB file to color, you can enter the file name here instead of setting the Tint above.

# 3. Emission

https://preview.redd.it/uf1tkpst0pkf1.jpg?width=1000&format=pjpg&auto=webp&s=ba4ec37312eabe84f18ff45d393ce5787c101af9

The last component of Volume Shader’s parameters that we explore is the Emission. This element is essential when creating self-illuminating effects, such as fire and explosions.

Channel

https://preview.redd.it/8qx6agsw0pkf1.jpg?width=1000&format=pjpg&auto=webp&s=d294f7c9a17419245ffed360bfc26f95e4dbf460

The typical name for the Emmision channel is ‘temperature’. Besides, the channel name can be chosen from ExplosiaFX, FumeFX, or Turbulence FD, depending on the specific result you want to achieve.

Tint

https://preview.redd.it/ldo9vduy0pkf1.jpg?width=1000&format=pjpg&auto=webp&s=7f53998af09eaeebb7b604a659b2d9a757b53ce5

Since the temperature channel only controls the heat of the emissive mass, the Tint feature is needed to set its color.

Scale

https://preview.redd.it/d62wtyy01pkf1.jpg?width=1000&format=pjpg&auto=webp&s=248ceef9f406cfaca8440bba6d8415bdb7423228

You can increase the emission intensity by multiplying the emission channel by the Scale. A Scale of 0 will lead to no emission.

Emission mode

https://preview.redd.it/jo02uau31pkf1.jpg?width=1000&format=pjpg&auto=webp&s=59bc3ed6cee09d311142cd9672c5e2a23994e41b

There are 2 modes for emission:

Color Ramp — Emission color is customized by the emission remap ramp.
Blackbody — Emission color is controlled by a physically based rendering method, used for effects like explosions and flames.

Emission Remap Ramp

https://preview.redd.it/fhfxp8m61pkf1.jpg?width=1000&format=pjpg&auto=webp&s=9191ad0030c73406f1579a25828b95578d958134

With this tool, you can color the emission volume based on the temperature level. The colors from left to right sides of the ramp correspond to volumes from low to high temperature.

Taking the flame above as an example, you would set the ramp like this:

Low temperatures — black/gray
Medium temperatures — red
Higher temperatures — yellow/white

Please note that the fire above is the result of all 3 component settings of Redshift Volume Shader’s parameters.

Color Channel

You can use an OpenVDB file for the emission component’s color as an alternative to Tint or Ramp.

Color Mode

This mode controls how the Color Channel combines with Emission Remap Ramp and Tint.

There are 3 options available:

Multiply with ramp: The Color Channel will multiply with the Emission Tint gradient.
Multiply with temperature: The Color Channel will multiply with the Emission Channel before combining with the Tint and the Tint gradient
Replace: The Color Channel will completely replace the Emission Channel.

Temperature

https://preview.redd.it/d909xdxe1pkf1.jpg?width=1000&format=pjpg&auto=webp&s=ced3ab6aed9aeda0d925c359ee435430c9b1b899

This setting sets the emission value based on the Kelvin temperature range. The color and intensity of the emission volume will change as the parameter is increased or

decreased.

Offset

https://preview.redd.it/z4bkejzg1pkf1.jpg?width=1000&format=pjpg&auto=webp&s=a47bc44183097e7c11d2cbdacbbd37aa83679687

Offset changes the emission intensity according to the emission channel value and the calculated physically correct radiance. It’s best to leave it at the default value to get the physically correct results.

Thank you for reading!

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Help on Animation

Hey, I'm pretty new to C4D and I'm trying to animate something simple for school, but there's weird lines keep appearing. How do I get rid of them?

https://preview.redd.it/n20moq74uqkf1.png?width=572&format=png&auto=webp&s=8444eefe2af26846c52d9d7e785d27b88fe10328



https://redd.it/1mxxkca
@Cinema4Dbackup

Am faling to undestand the reason behind this modelling process

Am on the final part of this gun modelling series, while I understood most of what he is doing am lost on the last video, specifically at around 5:18.

He deletes one half of the gun grip model he has been modelling symmetrically, only to then recreate it by by mirroring the remaining half, am not sure why and it seems redundant to me, since he already had a symmetrized model.

As I shared on my recent What is "Isoline editing" and is there Maya equivalent? thread, I am a Maya user, so it could just be the Cinema4D UI or its general workflow going over my head, so I thought I would ask you guys for some clarity.

Thanks for any help.

https://redd.it/1my2afh
@Cinema4Dbackup

What am I doing wrong with polygon pen? I just want to cut the geometry

https://redd.it/1my9sn3
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Transparent Type with Plain Effector

Seems like this should be simpler but I have looked at numerous tutorials and I'm not finding anything that works in R25. I just want to control the alpha of my letters with a plain effector. Why isn't this just a simple parameter? Can someone please explain a straightforward method for this?

https://redd.it/1myf0ps
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Weekly 'No Stupid Questions' & Free-For-All Thread : August 24, 2025

In this weekly post you can ask any question or talk about any topic that you don't feel needs its own post. Share that render you're still working on, ask a question you're not quite sure about or talk about something that caught your attention.

https://redd.it/1mylwtn
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Two Weeks into Cinema 4D – What Do You Think?

https://redd.it/1myvbmv
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Watch restyl

https://redd.it/1myxv7a
@Cinema4Dbackup

Vue Cinema Tickets

Hi guys, as a broke student, I REALLY NEED discounted cinema tickets at a local Vue coz they’re hella expensive. If any kind soul out there has a discount code or a free ticket I would GREATLY appreciate it.

I wanna watch Demon Slayer this coming September and it’ll be the first time I actually go to a cinema so help would be GREATLY APPRECIATED.

https://redd.it/1mzej4x
@Cinema4Dbackup

Watch AnimationProject - Need Feedback

https://redd.it/1mzi6gd
@Cinema4Dbackup

How can I bake this scene into a single UV map?
https://redd.it/1mzn7mo
@Cinema4Dbackup

Building a workstation for c4d R.19

I wanted to build a workstation to run Cinema 4D R.19 using two GTX 1080 cards. Which CPU should I buy? The cards are older, but I also want to use it for After Effects 2024?

https://redd.it/1mzpzrm
@Cinema4Dbackup

Why does Cinema not have shortcuts for point edge face by default?

Does anyhow have any ideas, especially if you are a dev or a Maxon employee on this r , why on earth are there not default shortcuts for these basic operations?

https://redd.it/1mzy43n
@Cinema4Dbackup

jagged edges...

hi guys! this is an stp file coming from engineering... Is there any way I can make the edges smoother?

I tried subdivision but it pretty much smooths everything else including the vents and screws up the rest of the surface.


Thanks in advance!

https://preview.redd.it/zq8o9i3lk8lf1.png?width=1491&format=png&auto=webp&s=75dad46b55cac77d5fdd4edbb6dcc0235299906f



https://redd.it/1n03umr
@Cinema4Dbackup

How to place a transparent UV Wrap onto an object that already has a material?

https://preview.redd.it/labdgvbca9lf1.png?width=5112&format=png&auto=webp&s=a5e7bd208306c6507a4fa8d6a031a27873caed6a

https://preview.redd.it/1uo9gax6b9lf1.png?width=5120&format=png&auto=webp&s=cafbc5f8c036fe4fe38cf3c3aa162444581d261f

Hey guys, Newb here...

• I have this package that I made that includes a paper texture.

• I also have a transparent UV wrap created that includes things like logo, etc.

How do I place the UV Wrap (png) material onto my package so that it appears on top of the paper? Whenever I drag the UV wrap material onto my object, it covers the paper.

Thanks!

https://redd.it/1n076sm
@Cinema4Dbackup