X3D Export: export objects as their correct type #35

New Issue

Cedric Steiert · 2024-11-07T23:40:08+01:00

Cedric Steiert commented

2024-11-07 23:40:08 +01:00

Currently the exporter only exports blender objects as IndexedFaceSet. This is okay for most use cases, however makes the files not really reusable by other software.

For example:

Text gets exported as IndexedFaceSet instead of Text, which means changes in font style or content is not possible.
Curves are exported as IndexedFaceSet instead of IndexedLineSet or their Specialized Geometry, which means they are not visible at default, as curves in blender have no depth and so no faces to be exported
Simple geo like box are exported as IndexedFaceSet, which doesn't really seem like a problem per se. I think this case would be quite hard to implement on the blender side as it would require comparison of vertex data to the original primitive...

Currently the exporter only exports blender objects as IndexedFaceSet. This is okay for most use cases, however makes the files not really reusable by other software. For example: - Text gets exported as IndexedFaceSet instead of Text, which means changes in font style or content is not possible. - Curves are exported as IndexedFaceSet instead of IndexedLineSet or their Specialized Geometry, which means they are not visible at default, as curves in blender have no depth and so no faces to be exported - Simple geo like box are exported as IndexedFaceSet, which doesn't really seem like a problem per se. I think this case would be quite hard to implement on the blender side as it would require comparison of vertex data to the original primitive...

circle_curve.x3d

1.3 KiB

circle_curve_with_depth.x3d

71 KiB

text_arial_italic.x3d

40 KiB

circle_indexlineset_emit_blue.x3d

1.3 KiB

Cedric Steiert added the

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label 2024-11-07 23:40:08 +01:00

Cedric Steiert commented

2024-11-07 23:44:15 +01:00

@vmarchetti @yottzumm what do you guys think about this? Should we aim to try to distinguish between object types in the exporter? At least for a few selected cases like text and curves for afore mentioned reasons? Would this be unnecessary development overhead or an actual useful change?

Vincent Marchetti commented

2024-11-08 13:40:33 +01:00

I think this would not be a priority task, even for exporting text. It may be an interesting problem to solve for the sake of completeness, but if someone claims they need this capability for the production generation of X3D files, I'm pretty sure there's a better solution than Blender export.

👍 1

Cedric Steiert added

enhancement

Low

and removed

question

labels 2024-11-08 16:01:01 +01:00

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