50 lines
No EOL
1.8 KiB
Markdown
50 lines
No EOL
1.8 KiB
Markdown
# Morph-Primitives Test
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## Tags
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[core](../../Models-core.md), [testing](../../Models-testing.md)
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## Summary
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Tests a morph target on multiple primitives.
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## Operations
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* [Display](https://github.khronos.org/glTF-Sample-Viewer-Release/?model=https://raw.GithubUserContent.com/KhronosGroup/glTF-Sample-Assets/main/./Models/MorphPrimitivesTest/glTF-Binary/MorphPrimitivesTest.glb) in SampleViewer
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* [Download GLB](https://raw.GithubUserContent.com/KhronosGroup/glTF-Sample-Assets/main/./Models/MorphPrimitivesTest/glTF-Binary/MorphPrimitivesTest.glb)
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* [Model Directory](./)
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## Screenshot
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## Description
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This model contains a simple mesh with two primitives: A larger red primitive displays a grid covering 3 of the 4 quadrants of the model's area, followed by a smaller green primitive covering the last quadrant.
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Each primitive has a morph target that creates an elevated area within these quadrants. The model's only mesh contains a `weights: [0.5]` instruction that should cause these morph targets to be applied at half strength, raising the center of the model as shown in the screenshot above.
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## Common Problems
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If the entire model appears perfectly flat, it is likely that the morph targets have not been applied as requested.
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If the red area or green area is missing, particularly in the Draco-compressed version of this model, it could indicate a problem with decompression or with support of multiple primitives within a single mesh.
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## Author
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Model by [@ft-lab](https://github.com/ft-lab).
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## Legal
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© 2018, ft-lab. [CC BY 4.0 International](https://creativecommons.org/licenses/by/4.0/legalcode)
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- ft-lab for Everything
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© 2020, Frank Galligan. [CC BY 4.0 International](https://creativecommons.org/licenses/by/4.0/legalcode)
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- Frank Galligan for DRACO compression
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#### Assembled by modelmetadata |