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#openvdb — Public Fediverse posts

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  1. kandid @[email protected] ·

    Only the meshes are calculated. Material and light is later added using a raytracer.

    You can find the source code here:

    gitlab.com/metagrowing/voxel/-

    Lines 2 - 18: the elongated porcelain body.
    Lines 19 - 28: the perforated glass shell.
    Lines 29 - 41: the reflecting object is made up of Platonics cut by a sphere.

    #OpenVDB #genuary2025 #genuary3 #genuary

    #openvdb #genuary2025 #genuary3 #genuary
  2. kandid @[email protected] ·

    GENUARY 2025 DAY 3
    Exactly 42 lines of code

    A programming language to perform operations on volumes. 3D Noise / Constructive Solid Geometry / Isosurfaces. In these 42 lines 3 OpenVDB volumes are created and converted into very detailed wavefront obj meshes. Only the volumes and meshes, but not the coloring. These meshes can then be combined with material and light using Blender.

    I had made this assembly language in 2018.

    gitlab.com/metagrowing/voxel

    #OpenVDB #genuary2025 #genuary3 #genuary

    #openvdb #genuary2025 #genuary3 #genuary
  3. Zygmunt Krynicki @zygoon ·

    Sing the docs youtube.com/watch?v=C1LP2gGSddA

    is openvdb.org/ and was one of the coolest projects presented by the at the last week. I wanted to share this earlier but I could not find the video.

    #openvdb #academysoftwarefoundation #ubuntusummit
  4. Wojciech Jarosz has moved @[email protected] ·

    Anyone familiar with #Blender #development know whether its possible to access a volume’s #OpenVDB data in an export plugin written in #python? For instance, if I simply wanted to write out the bounding box of the vdb file? Even better: convert the OpenVDB file to #NanoVDB and write it out? Poking around python docs hasn’t yet been fruitful.

    #nanovdb #python #openvdb #development #blender
  5. kandid @[email protected] ·

    Before there were geometry nodes in Blender (2.8), I had developed external tools to place many objects in a scene. Or to create large irregular meshes. It's a combination of #Clojure for expanding the rules and #OpenVDB for mesh construction. Now 4 years later i have my tools up and running again.

    Not all is in this public repository. The OpenVDB part is very unstable and not published.

    gitlab.com/metagrowing/grow

    #b3d

    #clojure #openvdb #b3d
  6. kandid @[email protected] ·

    @twilliability Here I created the geometry with OpenVDB. I never published the C source code.

    Combine some Perlin Noise with a sphere in OpenVDB 3.2.
    Calculate the boundary surface (ISO surface).
    Export as mesh.
    Rendering with Blender 2.8 and Cycles.

    The light in the scene comes from an HDRI image.

    Only works for still images. During an animation the texture and lightning would probably move independently of the geometry. Which would not look believable.

    #b3d #cycles #OpenVDB

    #b3d #cycles #openvdb
  7. Mike Rochefort :fedora: @omenos ·

    For those interested in , , and , there are some great fundamental open source projects you can get involved in...

    * OpenEXR
    * OpenVDB
    * Universal Scene Description (USD)
    * Open Shading Language (OSL)
    * OpenColorIO
    * OpenImageIO
    * OpenSubdiv
    * MaterialX

    ... just to name a few. And there's even more projects on the pipeline and DCC side of things, the field is huge and a lot of fun!

    #computergraphics #vfx #cgi #openexr #openvdb #usd