Coordinate Systems - Revision history

Alexander at 16:55, 24 May 2026

2026-05-24T16:55:38Z

2026-03-21T07:30:58Z

2026-03-04T06:35:41Z

Coordinate System Conventions

← Older revision		Revision as of 06:35, 4 March 2026
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	\| OpenGL/WebGL/glTF \|\| Y-up \|\| right-handed \|\| same as in Verge3D		\| OpenGL/WebGL/glTF \|\| Y-up \|\| right-handed \|\| same as in Verge3D
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			\| Rhino 3D \|\| Z-up \|\| right-handed \|\|
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	\| Three.js \|\| Y-up \|\| right-handed \|\| same as in Verge3D		\| Three.js \|\| Y-up \|\| right-handed \|\| same as in Verge3D

2025-04-24T12:39:18Z

← Older revision		Revision as of 12:39, 24 April 2025
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	{{#seo:\|type=article\|description=~~Info~~ on coordinate systems used in different flavors of Verge3D.}}		{{#seo:\|type=article\|description=In this article you will find info on coordinate systems used in different flavors of Verge3D as well as 3D modeling software.}}
	In this article you will find info on coordinate systems used in different flavors of Verge3D.		In this article you will find info on coordinate systems used in different flavors of Verge3D as well as 3D modeling software.

	== Verge3D ==		== Verge3D ==

2025-04-24T12:37:55Z

← Older revision		Revision as of 12:37, 24 April 2025
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	~~[[Category~~:~~Rendering]]~~		{{#seo:\|type=article\|description=Info on coordinate systems used in different flavors of Verge3D.}}
	In this article you will find info on coordinate systems used in different flavors of Verge3D.		In this article you will find info on coordinate systems used in different flavors of Verge3D.

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	* [http://wiki.polycount.com/wiki/Normal_Map_Technical_Details Normal Map Technical Details] - overview of normal mapping techniques and differences between modelling suites.		* [http://wiki.polycount.com/wiki/Normal_Map_Technical_Details Normal Map Technical Details] - overview of normal mapping techniques and differences between modelling suites.

			[[Category:Rendering]]

2023-05-28T19:40:10Z

Puzzles

← Older revision		Revision as of 19:40, 28 May 2023
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	[[File:puzzles_axis.png]]		[[File:puzzles_axis.png]]

	In case if you load scenes made in different modelling suites (for example if you run [https://www.soft8soft.com/product/verge3d-ultimate-web-interactive-suite/ Verge3D Ultimate]), we use the coordinate system of the scene which is loaded first.		In case if you load scenes made in different modelling suites (for example, if you run [https://www.soft8soft.com/product/verge3d-ultimate-web-interactive-suite/ Verge3D Ultimate]), we use the coordinate system of the scene which is loaded first.

	== Coordinate System Conventions ==		== Coordinate System Conventions ==

2023-05-28T19:39:46Z

Verge3D

← Older revision		Revision as of 19:39, 28 May 2023
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	[[File:right_handed_rotation.png\|640px]]		[[File:right_handed_rotation.png\|640px]]

	So, it does not matter which Verge3D flavor you use: for Blender, 3ds Max, or Maya. In all these cases the ''internal'' coordinate system would be the same - Y-up.		So, it does not matter which Verge3D flavor you use: for Blender, 3ds Max, or Maya. In all these cases the ''internal'' coordinate system would be the same — Y-up.

	== Blender ==		== Blender ==

2023-05-28T19:39:30Z

Blender

← Older revision		Revision as of 19:39, 28 May 2023
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	There is one exception to this - if you're going to use JavaScript to script your apps (but not Puzzles, see below), you need to convert object coordinates from Z-up to Y-up system:		There is one exception to this - if you're going to use JavaScript to script your apps (but not Puzzles, see below), you need to convert object coordinates from Z-up to Y-up system:

	X (Blender) -> X (Verge3D)		X (Blender) → X (Verge3D)
	Y (Blender) -> -Z (Verge3D)		Y (Blender) → -Z (Verge3D)
	Z (Blender) -> Y (Verge3D)		Z (Blender) → Y (Verge3D)

	Compare screenshots above to see why Y becomes -Z.		Compare screenshots above to see why Y becomes -Z.

2023-05-28T19:38:53Z

3ds Max

← Older revision		Revision as of 19:38, 28 May 2023
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	[[File:z_up_axis.png\|640px]]		[[File:z_up_axis.png\|640px]]

	Now it's time for history lesson. Both Blender and 3ds Max use coordinate system which were common in early 90's. This convention is typical in architecture - you start modelling from the floor plan which uses X/Y coordinates and then extrude upwards (or downwards).		Now it's time for a history lesson. Both Blender and 3ds Max use coordinate system which were common in early 90's. This convention is typical in architecture — you start modelling from the floor plan which uses X/Y coordinates and then extrude upwards (or downwards).

	On the other hand, Maya, most game engines, graphics APIs, and of course Verge3D use different approach. The screen becomes a 2D plane which uses X/Y coordinates to position flat images, while Z coordinate adds depth to the scene. That's why the buffer that stores pixel depth is called Z-buffer and the issue with limited depth precision is called [[Z-fighting]].		On the other hand, Maya, most game engines, graphics APIs, and of course Verge3D use different approach. The screen becomes a 2D plane which uses X/Y coordinates to position flat images, while Z coordinate adds depth to the scene. That's why the buffer that stores pixel depth is called Z-buffer and the issue with limited depth precision is called [[Z-fighting]].

2023-05-28T19:35:47Z

Verge3D

← Older revision		Revision as of 19:35, 28 May 2023
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	== Verge3D ==		== Verge3D ==

	In Verge3D we use '''right-handed''' coordinate system with the '''Y axis''' pointing in the '''up''' direction. If we place the camera so X axis points '''right''', then the Z axis will point '''forward''' (to the viewer).		In Verge3D we use '''right-handed''' coordinate system with the '''Y axis''' pointing in the '''up''' direction. If you place the camera so X axis points '''right''', then the Z axis will point '''forward''' (to the viewer).

	[[File:y_up_axis.png\|640px]]		[[File:y_up_axis.png\|640px]]
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	[[File:right_handed_rotation.png\|640px]]		[[File:right_handed_rotation.png\|640px]]

	So, it does not matter which Verge3D flavor you use: ~~Verge3D~~ for Blender, 3ds Max, or Maya. In all these the coordinate system is the same - Y-up.		So, it does not matter which Verge3D flavor you use: for Blender, 3ds Max, or Maya. In all these cases the ''internal'' coordinate system would be the same - Y-up.

	== Blender ==		== Blender ==