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| 17:24.57 | neffi | does anyone know an existing add-on that uses intrinsic frames and line textures? looking to grok their usage |
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| 17:50.37 | TheDanW | what do intrinsics have to do with it? any frame or frame-derived type can create lines |
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| 18:04.39 | neffi | curious about both thing, separately |
| 18:06.19 | TheDanW | gotcha, that makes more sense |
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| 18:21.10 | neffi | as to intrinsics was wondering what use cases they offer beyond templates |
| 18:21.26 | nevcairiel | basically safer scripts |
| 18:21.27 | neffi | and was wondering what lines are. all I could find was your mention of them in this channel |
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| 19:03.17 | neffi | it's literally a line. right |
| 19:03.23 | neffi | well I can't break anything with this |
| 19:08.05 | znf | Narator: but he broke everything |
| 19:14.10 | Gnarfoz | :D |
| 19:14.44 | TheDanW | lines are special because they have start and end anchors, and the texture is stretched/tiled along those anchors |
| 19:14.58 | TheDanW | some special animation stuff with them, like tex coords that can scroll along the line |
| 19:22.25 | TheDanW | if you're fancy you can render arbitrary quads/triangles with them, the obvious next step is importing some models to some big Lua tables and render them in 3d with a bunch of lines |
| 19:45.40 | Fisker | Hey friends and TheDanW |
| 20:57.41 | Chipzz | TheDanW: I'm lazy and didn't tst yet, but what you didn't mention is what the start and end anchors represent. Are they the corners of the rectangle formed by the line, or are they the centers of a lines side? |
| 20:58.09 | Chipzz | ie TOPLEFT/BOTTOMRIGHT or LEFT/RIGHT? |
| 21:00.29 | Chipzz | neffi: for intrinsics: they can also make XML easier to read (compare <Button inherits="ItemButtonTemplate"> vs <ItemButton>; the latter is a lot clearer and more compact) |
| 21:02.35 | Chipzz | I don't know of any addons that use intrinsics, but ItemButton(Template) and ScrollingMessageFrame are 2 examples of Blizzard code using intrinsics |
| 21:04.17 | nevcairiel | the main use of intrinsics, from my view point, is to clear up the complications of script inheritance |
| 21:04.39 | nevcairiel | ie. you don't have to hope the user of your template remembers to call MyTemplate_OnShow in his OnShow |
| 21:14.14 | TheDanW | Chipzz: they're the start and end of the line, so the "left" and "right" of the texture if you want to talk about it like that |
| 21:14.57 | TheDanW | so if the start was below the end, then the "left" would be rotated 90 degrees towards the bottom of the screen |
| 21:15.08 | Chipzz | right; makes sense in the context of "the texture is stretched/tiled along those anchors" |
| 21:15.31 | Chipzz | topleft/bottomright would make less sense in terms of stretching |
| 21:15.31 | TheDanW | the anchors work just like usual, you can anchor the start to the TOPLEFT of some other frame, with some x/y offset from it |
| 21:19.46 | Chipzz | that part I understood :) |
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| 21:41.46 | Chipzz | TheDanW: I have a question about BLPs, DXTC compression and mipmapping if you don't mind |
| 21:46.08 | Chipzz | looking at for example FriendsFrame/UI-FriendsFrame-HighlightBar.blp ; the first 4 mipmap levels are fine, nothing wrong with then. level 4 is 32x4, so level 5 should be 16x2. 16x2=32, and with DXT1 containing 4x4=16 pixels per block of 8 bytes, there should be at least 2 DXT blocks. But looking at the texture with BLP Lab or a hex viewer, the header only specifies 8 bytes (ie 1 DXT block) for that level. |
| 21:46.14 | Chipzz | <PROTECTED> |
| 21:48.23 | Chipzz | uhm level 3 and 4, when using 0-based offset |
| 21:54.40 | TheDanW | not 100% sure there, it's quite possible it wasn't exported correctly, but i'm not an expert in DXT formats; we do detect invalid mips and remove all levels but the highest |
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| 22:16.09 | Chipzz | heh, I just found a bug in my blp loader :) although fixing it wouldn't fix the problem described above |
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