MAX_COMBINED_UNIFORM_BLOCKS

Maximum number of uniform blocks available across shader stages. A uniform block groups many related uniform values into one bindable buffer-backed unit.

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Overall Support

≥ means at least this value.

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 26	50%
≥ 32	49%
≥ 34	25%
≥ 42	24%
≥ 44	21%
≥ 47	18%
≥ 60	17%
≥ 65	5%
≥ 77	4%
≥ 81	3%
≥ 87	2%
≥ 96	1%

Platform Support

Platform

Reports

Android

Reported value	Reports
≥ 36	100%
≥ 41	94%
≥ 42	93%
≥ 45	63%
≥ 58	58%
≥ 60	57%
≥ 70	21%
≥ 75	18%
≥ 171	8%

Chromium OS

Reported value	Reports
≥ 36	100%
≥ 42	99%
≥ 48	72%
≥ 60	71%

iOS

Reported value	Reports
≥ 24	100%
≥ 32	86%
≥ 60	1%

Linux

Reported value	Reports
≥ 30	100%
≥ 35	99%
≥ 42	98%
≥ 44	87%
≥ 45	84%
≥ 48	55%
≥ 65	39%
≥ 81	25%
≥ 87	15%
≥ 214	1%

Mac OS

Reported value	Reports
≥ 24	100%
≥ 27	93%
≥ 30	92%
≥ 32	89%
≥ 34	6%

Windows

Reported value	Reports
≥ 23	100%
≥ 24	97%
≥ 32	8%

Browser Support

Browser

Reports

Chrome/Chromium

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 26	51%
≥ 32	50%
≥ 34	30%
≥ 41	29%
≥ 44	24%
≥ 47	20%
≥ 59	19%
≥ 70	1%

Edge

Reported value	Reports
≥ 24	100%
≥ 30	6%
≥ 36	2%
≥ 45	1%

Firefox

Reported value	Reports
≥ 24	100%
≥ 31	51%
≥ 42	49%
≥ 65	48%
≥ 73	47%
≥ 77	37%
≥ 81	22%
≥ 83	21%
≥ 87	13%
≥ 171	3%

Opera

Reported value	Reports
≥ 24	100%
≥ 28	15%
≥ 36	7%
≥ 45	5%
≥ 48	4%
≥ 60	3%
≥ 72	1%

Other

Reported value	Reports
≥ 24	100%
≥ 28	74%
≥ 32	73%
≥ 36	20%
≥ 45	19%
≥ 72	17%
≥ 84	15%
≥ 216	5%

Safari

Reported value	Reports
≥ 24	100%
≥ 30	82%
≥ 42	1%

Samsung Internet

Reported value	Reports
≥ 22	100%
≥ 24	99%
≥ 59	98%
≥ 71	83%
≥ 82	81%
≥ 83	80%
≥ 84	79%
≥ 214	28%
≥ 216	27%