Questions tagged [gltf]

The GL Transmission Format (glTF) is a runtime asset delivery format for GL APIs: WebGL, OpenGL ES, and OpenGL. glTF bridges the gap between 3D content creation tools and modern GL applications by providing an efficient, extensible, interoperable format for the transmission and loading of 3D content.

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Determining the Bounding Box values of a glTF file

Is there a way when looking at the source of a glTF file that you can determine what the boundingBox values of the object are?
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Programmatically generating bin files for GLTF models

I have a need to generate a series of GLB files. I have a base template for a GLTF file which I have to derive off of. The models thus generated will only have varying textures on them. The base mesh ...
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Export images in sketchup models

I built a model on Sketchup and imported png images in it to fill some faces. At first time, I tried to fill with a texture pointing to the desired image but it wasn't centered. Then when I export my ...
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2answers
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Convert a .X mesh to a modern format

I have a bunch of meshes in the .X format, which isn't supported by many 3D applications today. Therefore, I would like to convert these to a modern format like fbx or gltf/glb. Since these meshes ...
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1answer
482 views

glTF animation keyframe question

I have an animated cube with 5 keyframes and when I export it to glTF with blender, in the file I can only see 3 keyframes: But when I viewed the gltf model with viewer all 5 keyframes worked well ...
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1answer
710 views

How mesh geometry data (vertex coordinates) stored in glTF?

I've read the reference guide about the file but I am really confused. Why the hell are there "min" and "max" values ?? A single vertex has only one coordinate array not min and max.. Also in the ...
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2answers
2k views

How to encode/decode buffer data in glTF?

I'm playing around with base64 embedded data URI's and tried to analyze the buffer data of the gltf box sample model, as defined in this example here (line 76). ...
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2answers
717 views

How to generate binary gltf array buffers?

I'm looking for any way which enables me to quickly generate gltf files including the conversion of plain array buffers (vertex, index, color, etc.) into binary (bgltf, glb, bin) files. I'm asking ...
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2answers
707 views

Is it possible to store the plain buffer data in gltf files?

The GL Transmission Format comes along with a JSON styled main file which basicly describes the scene and binary files which contain the buffers. I'm currently writing a WebGL library and I need to ...
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3answers
2k views

Is it possible to create minimal glTF files with vertex and index buffers?

I am currently looking into glTF to use as a transfer format for my WebGL project. I already have the geometries I wish to render on my WebGL client available as preprocessed vertex and index buffers (...
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2answers
2k views

Are there any gltf example datasets available? [closed]

I'm currently researching my options on effeciently exchanging data for a webgl application. I understand the gltf format is still being drafted but I need some example data to understand whether this ...