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📝 Blender 4.3 is available here:
https://www.blender.org/download/releases/4-3/
📝 My procedural brush synthesis paper: https://users.cg.tuwien.ac.at/zsolnai/gfx/procedural-brush-synthesis-paper/
📝 Showcased SLIM paper: https://igl.ethz.ch/projects/slim/
📝 My paper on simulations that look almost like reality is available for free here:
https://rdcu.be/cWPfD
Or this is the orig. Nature Physics link with clickable citations:
https://www.nature.com/articles/s41567-022-01788-5
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Оглавление (2 сегментов)
Segment 1 (00:00 - 05:00)
Now we can create better virtual worlds, movies, avatars for videoconferencing, you name it. Why? Because the new version of Blender, the popular 3D modeling program, 4. 3 is now here. And it can now do so much more. And you will see today that it is, one, completely free for all of us, and two, over the years it has become an absolute powerhouse. They have an incredible set of improvements across the board. Let’s have a look first at my favorite. Not just ray tracing, light simulations, but volumetric ray tracing! Oh baby! That is, creating realistic simulations for fog, haze, smoke, and any medium that scatters light. Now they have more phase functions to choose from, this describes how light scatters off of a given material and you now have a lot more flexibility with that. Atmospheric, underwater, interstellar scattering, anything you want. All of these now look more realistic. Absolutely loving this, especially that this is also coming from research papers. Chef’s kiss! Now, onto the rendering of metals. Blender’s node-based system is really amazing for artistic control, you can dream up almost any material you want. For instance, when rendering metals, you can just choose a base color, great for creating gold-ish metals, anodized materials and more. However, you know what’s coming. Of course, now we graduate to the actual physically accurate metal node, which thinks in terms of indices of refraction and extinction coefficients. Okay, I hear you asking Károly, but what does that mean? It means super accurate metallic materials. And if you are done, you can also edit the white balance of the scene, giving it a cooler or warmer look depending on your artistic vision. You can go from fluorescent lab lights to super cozy, inviting interiors with just a couple clicks. So good. Now, let’s proceed and break the laws of physics. What? How? Dear Fellow Scholars, this is Two Minute Papers with Dr. Károly Zsolnai-Fehér. Well, through a new feature called light linking. Oh yes, finally. This solves an age-old problem where artists are looking to make changes to the lighting of an object, for instance, this boulder, which is, of course, impossible. Now hear me out. This is ray tracing, a rendering algorithm based on physics. So you can’t just change the lighting of an object, what you can do is change the lighting of a scene. The whole scene. No exceptions. But that is too much. Well, unfortunately, physics doesn’t care about art, it just tells us what is in reality. Well, not anymore. Light linking allows us to perform the impossible, that is, ask this light source to only illuminate just this boulder, and nothing else. Bravo. Or, we can even try to brighten up the eye of this creature. But wait, not the skin. The skin is good as is, just the eye. Can we do that? Yup, perfection. Geometry nodes are also getting improvements, these can help you make these lines dance and over time, form a really cool blender logo. This also made use of grease pencil, a feature used to draw in 3D space, which now plays better with geometry nodes. While we are talking about brush strokes, more stylized, non-photorealistic rendering by adding noisy or other artistic effects to an otherwise really sterile scene. Now you can do it right from the viewport. I wrote a brush stroke synthesizer for an animated movie a few years ago and I love how tools like this are now available for everyone on the planet for free. So cool! And when you choose a texture for an object, it needs to be put on the object, which inevitably comes with some stretching. Now, with a newer technique, you will see fewer distortions, which is particularly apparent around the nose here. So good. This also comes from a research paper. Yup, the papers make the world go around. The user interface is one of the areas that is perhaps the most criticized in Blender, so I am delighted to see that it is also getting many small improvements. For instance, docking and undocking parts of the user interface can be done like this, you can get previews for images, and oh! Now hold on to your papers Fellow Scholars, because there are improvements for the video editor, yes, it has a video editor too. What a time to be alive!
Segment 2 (05:00 - 05:00)
So try Blender for free, and if you don’t like it, just ask for your money back! And you don’t even have to start with a sad little cube because they have a treasure trove of example projects where you can start out with something really cool and play with it. Just get it through the link in the video description. So, what do you think? What would you Fellow Scholars use this for? Let me know in the comments below.