Select "Transparent background" option in render settings to make transparent image.
Actually it's a responsibility of Cinema 4D to save the image layers that renderer produces. Maybe PSD will get a separate Alpha pass? Actually PNG when saved has alpha, I think it can be extracted in AE. Currently I can't look into AE.

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hu wrote: Quote Kirgman wrote: 好的，我对 Post Effects 设置的猜测是正确的。 将需要再次查看并调试，直到每个案例的 PV 和 IPR 中的图像匹配。 hi kirgman： 我点击在 IPR 中保存当前图像并将图像发送到 C4d 进行渲染。之前的后期效果设置没有效果。如何在最后渲染的图像中保存设置的后期效果设置？

Hi Hu and welcome here!
This is because, your Filter settings are enabled in Picture Viewer in addition to CentiLeo post effects. Disable Filter settings and use CentiLeo post effects and it will be the same in IPR and PV. Or disable CentiLeo post effects settings and change only Cinema PV Filter settings.
See the images in my experiment.
Write in English, at least with auto-translation

The link to sample is https://drive.google.com/file/d/188S8wvb097fdrAGZp3cqNorji6loOMm2/view?usp=sharing
It's in my first reply, read it again.

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ssjenforcer wrote: When I used the shadow catcher for the material node and looked at the node editor, there was nothing there about shadow catcher. Is that normal? Shouldn't there be some node reference to it?

When you click to the node in the node editor you see the settings of this node in attribute manager as in this screen. See highlighted settings.

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ssjenforcer wrote: Will it not work with simple lights at all, only when using an HDRi?

The HDR is needed to make a background for engine. If you don't need a background then additionally use HDR Sky setup + transparent background in render settings.
Everything is exposed in render settings.

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ssjenforcer wrote: Also, I see that there are two types of centileo materials: centileo material and material [node] What is the difference? One only has material editor while the other has node editor. And the centileo material has 'matte' while the material [node] has shadow catcher. I tried both material types and neither give me shadows in the render.

Just material is the old version of CentiLeo materials that was the only option before Cenima R21. Since then Maxon has added node based materials support for 3rd party renderers and we have made the implementation and exposed it into the main menu instead of just materials. "Matte" and "Shadow Catcher" from both versions mean the same thing, we have just changed name in one place forgetting to change in another one.
You probably don't see shadows if you don't setup HDR lighting. With no any lighting it's black. Just learn from our sample.

Hi Peirato! Welcome to CentiLeo Thank you very much for your initiative! You are absolutelly great! Did you replaced English texts or added Chinese as an extra language version? Have you seen the node-based material settings text labels? Feel free to get my support with translation!

Hi RAin3D_ and welcome here! Please can you send me a scene file with textures to info@centileo.com using some file share service? I will investigate the problem and make it fixed.

Btw the sample above has 2 light sources: HDR Sky and Sun. They cast different shadows on the Ground Plane to the left and right of the object. You may change the shadow strength of each light using Matte Shadow Weight value in CentiLeo light tag of respective light source

You probably missed the "Shadow Catcher" flag in CentiLeo material for ground object. Check here pls https://centileo.com/forum/messages/forum19/message1556/396-shadow-catch-pass-_multi_pass_-does-not-...

Replied here https://centileo.com/forum/messages/forum19/message1556/396-shadow-catch-pass-_multi_pass_-does-not-...
Sorry for long reply pls

Hi, this is a sample with shadow catcher setup:
https://drive.google.com/file/d/188S8wvb097fdrAGZp3cqNorji6loOMm2/view?usp=sharing

1. Image 001.png. Make a Ground Plane object (higlighted), assign CentiLeo material to it, in material Diffuse settigns check Shadow Catcher flag as highlighted on the image.
2. Image 002.png. Setup your HDR lighting. Select the file of hdr as shown here. You may optionally override the HDR for couple of contributions (coming from Reflection, Camera or Diffuse, etc). In this example we override the texture for Reflections. They will be drawn from some other Sky Override object. We also override Matte Shadow contribution, it will cast the shadows from "Sky Override" lighting to the Ground Plane object.
Also you can change the strength of shadows that are casted on the Ground Plane. The shadows can be casted from HDR Sky objects as described above and from Sun light source (with CentiLeo light tag) and from Omni light souce (also with CentiLeo light tag). To manage the shadow strength of each light source you may change the "Matte Shadow Weight" as hightlight on 002.png
3. Image 003.png. To get the mask of object and shadows just open the CentiLeo render settings, AOVs/passes Tab, and in that place please enable "Alpha channel" flag as highlighted on the image. This way you be able to select Alpha chanel pass in IPR window as you can see. Also this pass will be provided inside Picture Viewer render together with Beauty image.
4. Image 004.png. To get the image with transparent background and the semi-transparent shadows on top of that just enable "Transparent background" option as highlighted on the image.

The shared sample has this .c4d file with textures.

Kirill

Hi Kaki! I think CentiLeo is already quite stable and has very good amount of features. Of course more features will be added. But I think it's rather stable

Have you realiszed how to make shadow catcher?
So, assign a material to a plane where you want to get shadows drawn on a background. This material should have "Matte / Shadow Catcher" flag enabled in node-based materials. In different material implementations (node-based or not) there is either shadow catcher or matte name for this.
Also you can cast the shadows with different shadow intensity to this plane object from other scene objects. This shadow intensity can be controlled for Sky + CentiLeo environment tag, for Directional / Sun light source or Omni light source with CentiLeo light tag. In all light tag settings "shadow catcher" value changes the shadow intensity.

I understand the problem. At the moment the selection of objects to get included into alpha channel or object buffer or any other mask buffer is not supported. But will do this in the future, there will be a lot of flexibility there because CentiLeo allows to render a lot of render buffers at once and keep really many images.

For sure we need to implement the complete support of composite tag, this is very important. And also implement a lot more AOV/extra render buffer types. This is in a roadmap and not really hard to do. But currently are doing other important things

ssjenforcer, open CentiLeo render settings, there is AOVs tab. In this tab please make "Alpha channel" flag enabled. So, in IPR you will see the Alpha chanel buffer together with Beauty image. Also in Picture Viewer there will be both Beauty and Alpha images.

Hi hao qiqi0, in IPR mode to make displacement working you need to click "Tesselate" button (in displacement settings) or Tess button in IPR window each time you change displacement settings or change camera position or image resolution. This simple manual work is needed to prevent from constant consuming object tesselation when you actively change the settings and because displacement object tesselations depend on camera parameters too (they are adaptive for viewer position).
Of course, in Picture Viewer mode clicking Tess button is not needed because this is done automatically.

As for displacement settings. You have checkbox "Adapt to pixels" enabled. This means that the tesselation mode (triangle sizes) inside the camera will be adaptive to the distance from camera to surface point. In this case the option Edge size [pixels] is taking effect. Each resulting triangle size will be of the size close to "Edge size [pixels]". It's wise to make the value 1 pixels or 0.5 pixels for production and 2 pixels for testing purposes.
Edge [world] is used when the value "Adapt to pixels" is off.
Remove the texture from Displacement Alpha. This slot accepts the texture to determine the mask of area where displacement mapping texture is applied.

If displacement isn't visible try to make Height value larger and Waterlevel zero. Also at first try to test the displacement texture on a plane to get the idea on sizes and scales. Then apply it for the bottle object.
If nothing still doesn't work then please send this scene file with displacement texture to me to info@centileo.com, I will figure out what is going on there.

ssjenforcer, is the problem fixed after you changed a needed texture from displacement slot to normal map of material bump slot? Is there anything ok?

I have tested your scene. But it's without any image files, so the displacements and images are not evaluated. It renders for the same time for IPR and Picture Viewer. I don't see any render time differerenec for both render modes. However, I have catched some my small bug, where motion blur is not exactly the same for IPR and PV, there is very slight difference in evaluation intra-frame time positions, I will investigate there. Thanks for the scene, that helped to detect this!

It's camera effect btw

1) In render settings you should select CentiLeo renderer. These settings have several tabs, one of them is Camera tab which has what you are looking for. Keep in mind that transformation motion steps implement the motion blur of moving object transform matrices (move, scale, rotate). Keep in mind that transformation step can be set up to 32 and this will work for Picture Viewer renders, but in IPR render the transformation steps will be limited to up to 4 steps for performance.
2) While deformation blur in the same Camera settings tab implements deforming vertex coordinates inside object with constant number of polygons.
3) Also if you have varying polycount of dynamic object then there is a Centileo object tag that you find. This tag has slots to connect with motion vectors (other object tags) if simulation software supplies these motion vectors. These vectors allow to implement deformation motion blur for varying polycount. Such as here https://centileo.com/news/150/centileo-for-cinema-0615/

"transparent background" option will replace the background of image (area without objects) with a greyscale checkerboard pattern. This means that in place of checkeboard pattern you will get transparency if rendered image is saved with "png" or some other image format that supports transparency. This is also possible to project the semi-transparent shadows casted on a transparent background.
This has nothing to do with "alpha channel" flag in AOVs render settings. This alpha channel flag adds an additional black/white image pass to the main beauty pass. Alpha channel shows the white mask of objects on a black background.