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31 votes
Accepted

Multiple instances of one object/mesh

You have 2 solutions: Linked Duplications: altD allows you to create a linked duplication, meaning if you modify one of the instances it will change all the others as they share the exact same mesh ...
moonboots's user avatar
  • 162k
16 votes
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What is the replacement for scene.update()?

Many instructions point to: bpy.context.view_layer.update() That's also what's mentioned in API documentation
Cmazay's user avatar
  • 306
15 votes
Accepted

Edit multiple Lights

Select the lamps you want to share the same data, hit Ctrl+L and choose object data. The corresponding lamps will now always copy each others settings.
Hendriks3D's user avatar
  • 1,151
12 votes
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How can I visualize a negative energy source with Blender?

You can assign a negative wattage to a light source - in the .gif below I have 2 lights: one (not moving) at 1000 watts, the other (moving) at -1000 watts. Notice how it also creates a negative "...
Christopher Bennett's user avatar
11 votes
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Disable Material Duplication

You can run this script to replace all duplicated materials in your file. Just paste it into the Text editor and click the Run Script button. It searches all objects, and then compares the first ...
Todd McIntosh's user avatar
11 votes

How to copy and link collection to other scene?

Ensure that the scene to which you want your collection to be linked is selected. In an "Outliner" editor window, ensure that the "Display Mode" in the toolbar is set to "...
Will Chen's user avatar
  • 1,607
11 votes
Accepted

How to render multiple scenes in succession from the timeline?

For rendering more Scenes created in one blend file use Video Sequencer (called VSE). Scene_Cube Scene_Sphere Create a third New scene, switch to Video Editing layout and with mouse hovering above ...
vklidu's user avatar
  • 36.8k
10 votes

How to set active scene via Python?

The older answers here are invalid as of 2.80. The Python API has changed, and screen objects no longer have scene as a property....
Joseph Brandenburg's user avatar
9 votes

What's the quickest, easiest way to point the camera somewhere in blender?

Step by Step Solution Select a camera in the Scene object list. Press 0 to view in Camera Perp. Press Shift + F to rotate the ...
Casper's user avatar
  • 261
9 votes

Where can I find the number of vertices, edges, and faces in my scene in Blender 2.8?

My stats were missing from my status bar somehow and I had to right-click the status bar to bring up the option to display the info I wanted to see
jfact0ry's user avatar
  • 271
8 votes
Accepted

How to get all collections of the current scene?

Recursively walk the tree. Similarly to https://blender.stackexchange.com/a/137866/15543 and Sorting Collections Alphabetically in the Outliner ...
batFINGER's user avatar
  • 84.5k
8 votes

How do i turn multiple of the same object into instances?

Select all your leaves (if they have the same material, press ShiftL (Select Linked) > Material), select one last to make it active, press CtrlL (Make Links) > Object Data, now all the leaves ...
moonboots's user avatar
  • 162k
7 votes
Accepted

How to have Denoiser ignore certain objects?

The Denoiser in Blender version 2.79 can be activated per Render Layer, and as such you can mix denoised and noisy footage as you like. If you ever wondered why the Blender Devs have put that Denoiser ...
aliasguru's user avatar
  • 11.3k
7 votes

What is the replacement for scene.update()?

Dependency graph API changes Main goal here is to make it obvious and predictable about what is going on. Summary of changes. Access to dependency graph is now only possible to a fully evaluated ...
batFINGER's user avatar
  • 84.5k
7 votes

Append python script for Blender 2.8

It's recommended to use BlendDataLibraries. The solution you've posted in your question works perfectly. It's just the path to blend file that is wrong, see the error message: "... failed to open ...
brockmann's user avatar
  • 12.6k
7 votes

Where is gravity settings in 2.91?

here it is: tab on scenes -> gravity
Chris's user avatar
  • 62.2k
7 votes
Accepted

Adding jitter to a constrained camera

keyframe location on frame 1 for your camera delete x and y location in graph editor: select z location and add noise modifier change settings to your preferences: enjoy! of course you can also ...
Chris's user avatar
  • 62.2k
6 votes

How can I remove a linked library with Python?

Quite an old thread, but it seems there is finally a solution available. Newer versions of Blender provide the batch_remove method in the bpy.types.BlendData type. ...
narranoid's user avatar
  • 197
6 votes
Accepted

How to set frame rate to 25 FPS as default?

Just change your default .blend file. In a new Blender window, change the default framerate, then go to File > Save Startup File or press Ctrl + U.
Scott Milner's user avatar
  • 4,483
6 votes
Accepted

Render Speed up (cycles)

So, I went into "simplify" in "scene properties" and added 1 AO bounce. I went from 15 minutes a frame to 47 seconds with NO grain! The catch? An AO bounce, takes light from the world background (I ...
Rich's user avatar
  • 149
6 votes
Accepted

Where can I find the number of vertices, edges, and faces in my scene in Blender 2.8?

Bottom right corner in the status bar.
AFWS's user avatar
  • 762
6 votes
Accepted

Best Way to animate lake

For a large rippling body of water such as a lake, rather than use a fluid simulation (which would require a great deal of simulation time to get believable results) you can combine multiple waves to ...
Rich Sedman's user avatar
  • 44.9k
6 votes
Accepted

More time is spent on render preparation than on the actual rendering. What can I do?

If scene preparation takes a very long time, here are a few things to consider/try: General Before the actual rendering part starts, a few things need to happen. All the necessary data in your scene ...
michaelh's user avatar
  • 1,949
6 votes

How do I change the frame size?

Most of the time the camera's clipping values are generating problems for people because they are wondering why something disappears in their scene. This is a good example where it makes sense to use ...
Gordon Brinkmann's user avatar
6 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 ...
moonboots's user avatar
  • 162k
5 votes
Accepted

My camera turned invisible

In the 3D View properties region N key, to the right of the screen, you ticked the option Only Render (visible in your screenshot). This makes only visible objects with actual renderable geometry ...
Duarte Farrajota Ramos's user avatar
5 votes
Accepted

Is it possible to copy data from one scene and paste it into another within the same .blend file?

There are other ways to get data from another scene: A) when you create a new scene, you're given several choices: (taken from the relevant manual section) " New Creates an empty scene with default ...
m.ardito's user avatar
  • 12k
5 votes

Change a Driver based on which Scene is being Rendered

It is possible to script drivers. Normally if you use a scripted expression as a driver, you can use any function that is defined in any script and added to driver namespace: ...
Martynas Žiemys's user avatar
5 votes

Append python script for Blender 2.8

With some help on twitter, this code is working now. ...
Lucas Falcão's user avatar

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