Nicholas Ralabate
nicholasralabate
About Me
EXPERTISE
VFX Artist
INDUSTRY
Film/TV
Connect
LOCATION
United States
WEBSITE
Houdini Skills
Availability
Not Specified
Recent Forum Posts
Exporting GLTF with mutliple clips workaround? May 2, 2025, 2:07 p.m.
Hi, I know that Houdini's GLTF support isn't as robust as Blender -- for example, a GLTF can only have one animation clip instead of several which makes it pretty onerous to deliver multiple animations for a character (each GLTF now has redundant mesh and skeleton data).
Has anybody come up with a workaround for this? I don't really want to add Blender to the mix, especially if this is an operation I can do post-export by calling a command line script. I am somewhat familiar with GLTF-Transform for mesh compression but I'm not sure if that can collate my animation clips for me, or if there is a better option out there.
Would love to learn what people are doing (besides switching to Blender for GLTF export).
https://gltf-transform.dev/ [gltf-transform.dev]
Has anybody come up with a workaround for this? I don't really want to add Blender to the mix, especially if this is an operation I can do post-export by calling a command line script. I am somewhat familiar with GLTF-Transform for mesh compression but I'm not sure if that can collate my animation clips for me, or if there is a better option out there.
Would love to learn what people are doing (besides switching to Blender for GLTF export).
https://gltf-transform.dev/ [gltf-transform.dev]
[APEX Animate Scene SOP] Hide Controllers When Flipbooking? April 15, 2025, 1:34 a.m.
Is there a way to have the "Hide Controllers During Playback" setting apply to flipbooks as well? I had assumed "Hide Controls During Playback" would also hide controls during flipbook generation since it is technically playing back, albeit slowly.
Exporting vertex color and vertex alpha via GLTF? April 12, 2025, 8:28 p.m.
Quick follow-up question, I found this GLTF exporter code in the sideffects repo here:
https://github.com/sideeffects/HoudiniGLTF/blob/Houdini18.5/src/ROP/ROP_GLTF_Refiner.C [github.com]
Is this accurate to what is currently in Houdini? The description says this repo contains the source for the GLTF exoprter code but it also hasn't been updated in five years, so it seems like it is abandoned? Just wondering if I could hunt around the C code in lieu of documentation.
https://github.com/sideeffects/HoudiniGLTF/blob/Houdini18.5/src/ROP/ROP_GLTF_Refiner.C [github.com]
else if (attrib_name == GA_Names::Cd)
{
uint32 vertex_colors = AddAttrib(attrib_data, GLTF_COMPONENT_FLOAT, 3,
0, GLTF_BUFFER_ARRAY);
prim.attributes.insert({"COLOR_0", vertex_colors});
}
Is this accurate to what is currently in Houdini? The description says this repo contains the source for the GLTF exoprter code but it also hasn't been updated in five years, so it seems like it is abandoned? Just wondering if I could hunt around the C code in lieu of documentation.