bobmartin

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  1. Hello, I'm trying to optimise at bit my text rendering. I render a graph, and each node in it contains an icon (from fontawesome or similar type font) and the link connecting it can display the relation name. There is only 9 possible icons and 13 relations so it seems like a bad idea to generate 'N' PIXI.Text objects so I thought I'd try just caching the text object in a map and using its texture inside sprites then cleaning up when done. I've ran into two problems though. First the texture wont display unless the text is part of the scene. If I add it as a child the Sprites will work. If I don't they will just be empty. Secondly, if I try to work around problem one by adding the text into the scene anyway the Sprite versions will all flicker when the text is changed (I change the text on a zoom event to scale it sharply) and not appear for a starting frame when the text is added. Is there a way to generate the texture for a text item without adding it to the scene, and could that fix the flicker? I forked someone elses pen to try demonstrate the text being part of the scene issue. https://codepen.io/anon/pen/yWXMJM I did see this project - https://github.com/JiDW/pixi-cocoontext/blob/master/src/CocoonText/index.js But I was hoping not to have to copy all the inners of Text Cheers Bob
  2. Thanks for the responses. I've gone with the calculateVertices method replacement for now, it appears to work perfectly.
  3. Hello, I'm creating a front end for a graph display application. It displays a sort of fancy force directed graph, so there are nodes and lines. I'm using pixi-viewport to contain my main scene so it can be zoomed/panned/culled. Once you zoom in past a certain limit the nodes will start to display a text label across the center. I'm using PIXI.Text for these as I don't control what characters will be displayed. I want the text to look crisp so I'm willing to take the hit of generating new text textures on each zoom action. This isn't too expensive as you have to be so far zoomed into to activate the labels that there isn't to many of them on screen at one time. The problem I have is the the text is inside a container that has the hierarchy for a graph node, its shadow/outer selection, inner ring, icon etc so it inherits the world transform for scale and it causes the text to scale and then look bad. I don't want the text to scale as I regenerate it at a suitable text size each zoom to look perfect. I tried the naive solution of trying to apply an inverse 1/parent-scale which sort of works some of the time but not really. I tried putting the text on a layer above the viewport and manually positioning them and resizing them, this worked perfect till I dragged one node over another and realised z-indexing is broken now that they aren't drawn with the rest of their node display objects. Does anyone know if there is a way to stop the worldtransform from applying to a child/child container? I'm currently considering creating my own container subclass that somehow sets the world transform to identity and just position its local x,y at world co-ordinates inside the viewport, this container will be added into the node hierarchy and contain the text item. I'll need to browse through the code a bit to see how. But I'm not sure if it is possible, even a good idea, or complete madness.