{"action":"created","issue":{"url":"https://api.github.com/repos/kangax/fabric.js/issues/3367","repository_url":"https://api.github.com/repos/kangax/fabric.js","labels_url":"https://api.github.com/repos/kangax/fabric.js/issues/3367/labels{/name}","comments_url":"https://api.github.com/repos/kangax/fabric.js/issues/3367/comments","events_url":"https://api.github.com/repos/kangax/fabric.js/issues/3367/events","html_url":"https://github.com/kangax/fabric.js/issues/3367","id":184804677,"number":3367,"title":"Access the webgl context propertie","user":{"login":"ncou","id":16743322,"avatar_url":"https://avatars.githubusercontent.com/u/16743322?v=3","gravatar_id":"","url":"https://api.github.com/users/ncou","html_url":"https://github.com/ncou","followers_url":"https://api.github.com/users/ncou/followers","following_url":"https://api.github.com/users/ncou/following{/other_user}","gists_url":"https://api.github.com/users/ncou/gists{/gist_id}","starred_url":"https://api.github.com/users/ncou/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ncou/subscriptions","organizations_url":"https://api.github.com/users/ncou/orgs","repos_url":"https://api.github.com/users/ncou/repos","events_url":"https://api.github.com/users/ncou/events{/privacy}","received_events_url":"https://api.github.com/users/ncou/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-10-24T10:34:05Z","updated_at":"2016-10-24T11:22:31Z","closed_at":"2016-10-24T10:54:20Z","body":"Hi,\r\n\r\nI see in the road map, that the webGL filtering is not actualy supported.\r\nI try to access the \"canvasEl.getContext(\"webgl\")\" or \"canvasEl.getContext(\"experimental-webgl\")\" in the filtering .js template but without success.\r\n\r\nIs there not a workaround to acces those properties ? I understand that you can't use both 2D and webgl context, so is it a fabric.js limitation or is there a possibility to access those context ?\r\n\r\nPS : I was trying to implement a WebGL Matrixtransformation filter in fabric.js (work fine in standalone mode, but not in fabric filter template).\r\n\r\nThank you for your help, sorry if my post is not in the right section."},"comment":{"url":"https://api.github.com/repos/kangax/fabric.js/issues/comments/255714298","html_url":"https://github.com/kangax/fabric.js/issues/3367#issuecomment-255714298","issue_url":"https://api.github.com/repos/kangax/fabric.js/issues/3367","id":255714298,"user":{"login":"asturur","id":1194048,"avatar_url":"https://avatars.githubusercontent.com/u/1194048?v=3","gravatar_id":"","url":"https://api.github.com/users/asturur","html_url":"https://github.com/asturur","followers_url":"https://api.github.com/users/asturur/followers","following_url":"https://api.github.com/users/asturur/following{/other_user}","gists_url":"https://api.github.com/users/asturur/gists{/gist_id}","starred_url":"https://api.github.com/users/asturur/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/asturur/subscriptions","organizations_url":"https://api.github.com/users/asturur/orgs","repos_url":"https://api.github.com/users/asturur/repos","events_url":"https://api.github.com/users/asturur/events{/privacy}","received_events_url":"https://api.github.com/users/asturur/received_events","type":"User","site_admin":false},"created_at":"2016-10-24T11:22:31Z","updated_at":"2016-10-24T11:22:31Z","body":"if you refer to the 32 bit access, i tried it and really makes no difference.\r\nWhat you gain in less iteration you loose on bit operation to extract colors.\r\nI speed boost i found on canvas2d filtering ( and this i will release asap ) is on multi layer filters, where we should not putImageData every layer but just pass on the data array. that helps a bit."}}
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