Draco vs LZMA - Revision history

Alexander at 16:55, 24 May 2026

2026-05-24T16:55:53Z

← Older revision		Revision as of 16:55, 24 May 2026
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	Contrary to that, LMZA applies lossless compression, means we don't strip any information from the original user meshes. As such there is no loss of precision or any additional settings to tweak the algorithm.		Contrary to that, LMZA applies lossless compression, means we don't strip any information from the original user meshes. As such there is no loss of precision or any additional settings to tweak the algorithm.

	[[Category:~~Overviews~~]]		[[Category:Explanations]]

Alexander at 06:28, 25 April 2025

2025-04-25T06:28:27Z

← Older revision		Revision as of 06:28, 25 April 2025
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	~~[[Category~~:~~Overviews]]~~		{{#seo:\|type=article\|description=Comparing Draco 3D geometry compression with plain LZMA compression}}
	Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.		Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.

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	Contrary to that, LMZA applies lossless compression, means we don't strip any information from the original user meshes. As such there is no loss of precision or any additional settings to tweak the algorithm.		Contrary to that, LMZA applies lossless compression, means we don't strip any information from the original user meshes. As such there is no loss of precision or any additional settings to tweak the algorithm.

			[[Category:Overviews]]

Alexander: /* Verdict */

2021-12-24T11:16:10Z

Verdict

← Older revision		Revision as of 11:16, 24 December 2021
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	== Verdict ==		== Verdict ==

	LZMA and Draco have comparable compression levels, but... Draco applies compression with loss of quality. That means, that in some situations, you we'll be required to manually tweak attribute precisions which is not quite straightforward for non-coders. Check out the Draco params from the Blender glTF exporter:		In typical scenarios LZMA and Draco have comparable compression levels, but... Draco applies compression with loss of quality. That means, that in some situations, you we'll be required to manually tweak attribute precisions which is not quite straightforward for non-coders. Check out the Draco params from the Blender glTF exporter:

	[[File:draco_params.jpg\|470px]]		[[File:draco_params.jpg\|470px]]

Alexander at 10:14, 21 December 2021

2021-12-21T10:14:02Z

← Older revision		Revision as of 10:14, 21 December 2021
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			[[Category:Overviews]]
	Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.		Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.

Alexander at 10:06, 21 December 2021

2021-12-21T10:06:29Z

← Older revision		Revision as of 10:06, 21 December 2021
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	Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.		Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.

			We're going to use Blender in our comparison, because it's the only package which comes with Draco compression available out of the box.

	== Case #1 - Ten low-poly Suzanne models ==		== Case #1 - Ten low-poly Suzanne models ==

			The first scene contains 10 Suzanne models. We did not shared meshes among these models, so for the exporter the scene appears like having 10 different geometry blocks. In total, there are approximately 10 000 triangles.

	[[File:10suz_blender.jpg\|1000px]]		[[File:10suz_blender.jpg\|1000px]]

	Here is what we've got by exporting it to gltf+bin format:		Here is what we've got by exporting it to the gltf+bin format.

	[[File:10suz_result.png]]		[[File:10suz_result.png]]

			The results are quite shocking. Verge3D's native compression algorithm beats Draco by a factor of 10! Remember we had 10 models on our test scene and LZMA can handle this situation quite effectively.

	== Case #2 - One middle-poly Suzanne model ==		== Case #2 - One middle-poly Suzanne model ==

			The second scene contains 1 middle-poly Suzanne model. In total, there are approximately 62 000 triangles.

	[[File:1suz_blender.jpg\|1000px]]		[[File:1suz_blender.jpg\|1000px]]
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	[[File:1suz_result.png]]		[[File:1suz_result.png]]

			Now Draco beats Verge3D, but the margin is not so big, approximately 20%.

			== Verdict ==

			LZMA and Draco have comparable compression levels, but... Draco applies compression with loss of quality. That means, that in some situations, you we'll be required to manually tweak attribute precisions which is not quite straightforward for non-coders. Check out the Draco params from the Blender glTF exporter:

			[[File:draco_params.jpg\|470px]]

			There are so-called "quantization" params which define quality of the exported attributes. Basically, higher values give better precision, while lower values give better compression ratio.

			Contrary to that, LMZA applies lossless compression, means we don't strip any information from the original user meshes. As such there is no loss of precision or any additional settings to tweak the algorithm.

Alexander: Created page with "Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit. == Case #1 - Ten low-p..."

2021-12-21T09:30:52Z

Created page with "Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit. == Case #1 - Ten low-p..."

New page

Here we discuss two compression methods used to minify glTF assets: Draco, the industry-leading algorithm and LZMA, the method used in Verge3D toolkit.

== Case #1 - Ten low-poly Suzanne models ==

[[File:10suz_blender.jpg|1000px]]

Here is what we've got by exporting it to gltf+bin format:

[[File:10suz_result.png]]

== Case #2 - One middle-poly Suzanne model ==

[[File:1suz_blender.jpg|1000px]]

The results are kinda different:

[[File:1suz_result.png]]