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Got the BVH (AABB tree) working with a nice visualization. (The circles and arrows show the hierarchy of the tree.) This is all CPU-side for now, so next is to ship the BVH to the GPU for accelerating SDF brick baking. It's already in a flat buffer so that... show more

Mike Turitzin

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36,134 görüntüleme • 1 yıl önce •via X (Twitter)

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✨ I added actual collision maps to as Javi Lopez ⛩️ kept telling me to do at our weekly coworking day today This means now the drone can not fly through buildings but it can fly through holes inside buildings like windows etc. Buildings are important because you can take cover there, bullets also hit the collision maps At the end of the video to show it worked I flew the drone a bit too hard into the wall so it died 😂 The tech behind it is Mesh BVH, so cool!!! "Mesh BVH is a THREE.js addon that builds a Bounding Volume Hierarchy from a mesh's triangles. A BVH is a tree where each node holds a box containing some triangles; child nodes split those triangles into smaller boxes. Queries walk the tree and skip entire branches that can't possibly contain the answer, turning "check all 5,000 triangles" into "check ~log₂(5000) ≈ 12 boxes."

✨ I added actual collision maps to as Javi Lopez ⛩️ kept telling me to do at our weekly coworking day today This means now the drone can not fly through buildings but it can fly through holes inside buildings like windows etc. Buildings are important because you can take cover there, bullets also hit the collision maps At the end of the video to show it worked I flew the drone a bit too hard into the wall so it died 😂 The tech behind it is Mesh BVH, so cool!!! "Mesh BVH is a THREE.js addon that builds a Bounding Volume Hierarchy from a mesh's triangles. A BVH is a tree where each node holds a box containing some triangles; child nodes split those triangles into smaller boxes. Queries walk the tree and skip entire branches that can't possibly contain the answer, turning "check all 5,000 triangles" into "check ~log₂(5000) ≈ 12 boxes."

@levelsio

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Sparse allocation/rendering of SDF bricks is now working! The pipeline is fully GPU-driven - a series of compute shaders that manages brick allocation/baking in a 3D texture atlas, followed by draw-indirect for rendering. Still a lot more work to do, including automatic LOD.

Sparse allocation/rendering of SDF bricks is now working! The pipeline is fully GPU-driven - a series of compute shaders that manages brick allocation/baking in a 3D texture atlas, followed by draw-indirect for rendering. Still a lot more work to do, including automatic LOD.

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Tracing a ray against the BVH and highlighting the leaves that are tested. (This is an "any hit" test for demonstration purposes! Next vid is shows closest-hit raycast.)

Tracing a ray against the BVH and highlighting the leaves that are tested. (This is an "any hit" test for demonstration purposes! Next vid is shows closest-hit raycast.)

Mike Turitzin

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Just integrated BVH for SDF generation, and added Sampling + Volume Collision support across all my simulations! Super excited to ship the Three.js Blocks release later this month! 🚀 1/5

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Renaud

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With the new abstractions in three-mesh-bvh, making a custom BVH is easier than ever! SkinnedMeshes can now have one created directly, leading to an over 2x perf improvement on update vs creating a new static mesh. 🚀 What else needs a BVH? 1/2 👇 #threejs #webgl #gamedev

With the new abstractions in three-mesh-bvh, making a custom BVH is easier than ever! SkinnedMeshes can now have one created directly, leading to an over 2x perf improvement on update vs creating a new static mesh. 🚀 What else needs a BVH? 1/2 👇 #threejs #webgl #gamedev

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SHE WANTED TO BE A TREE IN HER NEXT LIFE SO HE SAID HE WANTS TO BE A LAKE NEXT TO THAT TREE BC THERES SOMETHING MAGICAL ABOUT THE WAY A TREE REFLECTS INTO THE LAKE HELLOOOO

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sagɘ… again

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Path tracing LGK now also with the new mirror PSR feature. Note some the BVH meshes specifically alpha testing for leaves is not setup yet

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New sidewalk in San Diego, California put tree ring symbols for each tree that was cut down to create the sidewalk Next to the symbols they put how old each tree was that they cut down. They then placed the tree-trunk sections as sculptures This is mean to highlight how long it takes for trees to grow and the environmental trade-offs of urban building Classic California

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Wall Street Apes

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Got inspired by Dale Stark videos of tree trimming so I tried my hand in it. So far so good. Client was super happy the tree is gone. The neighbor complained a bit! Easy money...

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Some other changes: -Wind Foliage is back! (the tree animations used to be stuck unless you hit the tree) -Weapons now display the material it's made of in the name!

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host: “when you went to the song camp in la, I got a video call from taehyung “the scenery here is so nice I wanted to show you”. 🐨 “he has this side to him. this lovely side.” namjoon is so enderared by taehyung 😭

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sophie | ⊙⊝⊜

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kyungsoo singing the bridge and exo doing the legendary tree of life at the side… jrickbaek you are so crazy for this……

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In Brazil, there is a single tree that is so big it looks like an entire forest. It is the world's largest cashew tree, and it covers an area of about 8,400 square meters, that's about the size of a football field.

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Massimo

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Despite a protester standing underneath this tree in Germany, the operator continued & cut down the tree anyway.. 🇩🇪 Is this the correct way to deal with protestors?

Despite a protester standing underneath this tree in Germany, the operator continued & cut down the tree anyway.. 🇩🇪 Is this the correct way to deal with protestors?

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🐱: For this album, we really wanted to show you the most honest side of the seven of us. So, I am so, so happy to be able to show you a side of BTS that is more mature and has grown more than before. Thank you!

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With the recent three-mesh-bvh changes you can finally make a full scene-wide BVH to accelerate physics, raycasting, etc. And at some point Pathtracing 😁 Its just a prototype so far but it "just works" with objects and batched instances in a single structure. #threejs #gamedev

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