5 amazing improvements of Blender's latest version: Blender 3.1
Most recently, the Blender Foundation has shipped Blender 3.1, the latest version of this open-source 3D software. It’s a performance-focused update, with speed boosts to workflows ranging from animation and scene layout to rendering and file export, but as usual, there are scores of other features and updates to existing tools.
Below, let’s take a look at five features that are considered to be the most significant, including the new Metal backend for Cycles, GPU acceleration of the Subdivision Surface modifier, and the latest updates to Geometry Nodes. At the end of the story, you can take a quick tour through the other changes.
1. New Metal backend for Cycles on macOS
Probably the most-anticipated change in Blender 3.1 is native support for Metal, Apple’s graphics API, in the Cycles renderer: work funded and partly carried out by Apple itself.
Rendering performance on macOS began to lag behind that on Windows and Linux following Apple’s decision to deprecate OpenCL, originally used for GPU acceleration in Cycles. Most Mac artists are also unable to use Cycles’ CUDA and OptiX backends, which require Nvidia GPUs. The new Metal backend accelerates rendering on Macs with Apple’s own M1 processors or AMD GPUs, with support for Intel GPUs also in development.
The tests above were carried out using Blender’s standard demo scenes on a MacBook Air with an Apple M1 chip. In the Blender Foundation’s tests, shown above, a MacBook Air with a M1 chip rendered the standard Blender demo scenes between 1.2x and 1.7x faster on GPU than on CPU.
2. Better point clouds speeds up rendering simulations
Another key change to Cycles in Blender 3.1 is support for point clouds as a native geometry type. To be more specific, motion graphics animations and simulation caches imported from other DCC applications as point clouds should now render significantly faster in Cycles and use less memory while doing so.
Points are currently always rendered as spheres, although artists can control their size and randomize their color using the new Point Info node. More 3D shapes are “likely to be added later”. Support for point clouds as a native geometry type in Cycles speeds up renders of imported simulation caches.
3. Geometry Nodes: 19 new nodes
Artists can also generate point clouds directly inside Blender using the Geometry Nodes system, originally introduced in Blender 2.92 for object scattering and instancing. The 3.1 update sees it continue to evolve into a more general toolset, with nodes like Extrude Mesh – one of 19 new nodes in the release – opening up new procedural modeling workflows.
Working with node graphs should also now be a lot more interactive, with large node trees now displaying “nearly 2x faster”: just one of a long list of speed boosts and reductions in memory use.Other workflow improvements include a new context-aware search menu that pops up inside the Node Edior when dragging on sockets, showing only those nodes that can actually be connected to the one selected.
4. GPU acceleration for Subdivision Surface modifier
The Subdivision Surface modifier gets support for GPU acceleration in Blender 3.1. The change should make it easier to work with any mesh that is being smoothed using subdivision at render time, but one particularly common use case will be playing back character animations in the viewport.
For modeling work, the Subdivision Surface modifier also gets support for vertex creasing, making it possible to mark vertices as arbitrarily sharp to create a range of interestingly spiky new shapes.
5. Updates to Grease Pencil for coloring 2D animations
Grease Pencil, Blender’s ever-evolving 2D animation toolset, also gets some nice new features in Blender 3.1. The Line Art modifier, used to generate outline renders of 3D objects that can be used as Grease Pencil strokes, gets a number of new options.However, the most visually pleasing change comes when filling closed strokes with colour: the Fill tool now has a Dilate/Contract setting to expand or shrink the fill area.
That makes it possible to create effects in which the fill overlaps the strokes, or a white border is left inside them, as shown in the image above.
New features in other key Blender toolsets
Blender’s other toolsets see fewer changes, although there are some useful quality-of-life updates. In the Texturing tools, tiled images now support file names containing UDIM substitution tokens. It makes implement UDIM workflows of the type widely used in visual effects and game development. The Animation toolset gets the option to manually specify the frame range of action in the Dope Sheet. Morover, the Action Editor, and NLA Editor, and to make handle lengths uniform in the Graph Editor. Changes to the user interface include the introduction of the View pie menu to new parts of Blende. And including the animation editors. It is now possible to view much larger images in the Image Editor.
There are also significant changes to file import and export. A new C++ OBJ exporter speeding up export of OBJ files by up to 13x, and improvements to Alembic, glTF and USD export. Finally, Blender 3.1 now uses Python 3.10. Following the Blender Foundation’s decision to break away from the VFX Reference Platform and support a more recent version of the programming language. The change may prove controversial for larger studios integrating Blender into their production pipelines, and is discussed in more detail in this blog post.
Regarding system requirements, Blender 3.1 is available for Windows 8.1+, macOS 10.13+ and Linux. It’s a free download.
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- Let’s see rendering tests with Blender on multi-GPU at iRender:
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We accept payment through PayPal, Onepay, bank transfer, or credit card, And of course, we sometimes provide promotions for customers on special occasions. Staying connected with us to keep updating these programs.
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If you choose to render your projects with iRender, you can feel extra safe that we have a dedicated CPU & GPU infrastructure and enthusiastic technical supporters available 24 hours a day, 7 days a week to answer any queries you might have regarding your rendering jobs.
Thank you & Happy Rendering!
Source: cgchannel.com
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