IRC log for #minetest-hub, 2019-09-12

Time	Nick	Message
00:57	Sokomine	ah :-) those where funny sometimes
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03:12	VanessaE	ok I'm having a weird problem. minetest seems to be ignoring the UV mapping in a mesh I'm using for an entity (the mesh shape, which is just a single flat rectangle seems to be acting like a clipping boundary)
03:21	NathanS21	Are you sure the export included the uv mapping?
03:21	VanessaE	yes. I'm trying to recreate it just in case blender did something stupic
03:21	VanessaE	stupid*
03:22	NathanS21	The mesh didn't have multiple materials did it?
03:22	VanessaE	no
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03:23	NathanS21	hmmm
03:26	VanessaE	hm. nope, didn't work.
03:26	* VanessaE	growls
03:26	NathanS21	code and model someplace?
03:26	VanessaE	moment.
03:26	VanessaE	you could just clone https://gitlab.com/VanessaE/signs_lib and you'll get both
03:27	VanessaE	I'm trying to fix the aforementioned glitch
03:27	VanessaE	https://i.imgur.com/O5DcwpH.png
03:27	VanessaE	it does that ^
03:28	VanessaE	where the text is being clipped is exactly the edges of the flat plane in the model
03:28	NathanS21	Okay.
03:28	VanessaE	you can see that it's actually clipping it mid-pixel
03:30	VanessaE	I thought the bug was somewhere in my code, and maybe it still is, but I can see nothing nowhere that even begins to explain this artifact :-/
03:30	NathanS21	Which model would that be?
03:31	VanessaE	the pictured one is `signs_lib_standard_wall_sign_entity.obj`
03:31	NathanS21	ok
03:32	VanessaE	looking at the text of the obj file, the uv mapping is definitely there, though I don't know how to read the coordinates
03:33	NathanS21	The texture of the wooden board looks like it is correct.
03:33	VanessaE	it is.
03:33	VanessaE	only the entity is wrong
03:34	NathanS21	is that a separate object?
03:34	VanessaE	yes.
03:34	NathanS21	ah, okay
03:36	VanessaE	https://daconcepts.com/vanessa/extra/basic_signs%20wooden%20sign.blend
03:36	VanessaE	there's the workdfile as it exists now after that last re-make attempt
03:36	VanessaE	-d
03:37	VanessaE	hm, moment, I better embed the images into the blend
03:38	VanessaE	there, you should be able to see what I see; `signs_lib_standard_wall_sign_entity.obj` corresponds to the checkerboard in front of the frontmost of the two upright signs
03:39	NathanS21	okay, ya, it has textures now. :)
03:40	NathanS21	oh, I think I might now what's wrong.
03:41	VanessaE	oh?
03:41	NathanS21	Does the text get created as an image with a black space around it?
03:41	NathanS21	or do the letters go to the edge of the image?
03:41	VanessaE	letters should be very near to the edges of the image
03:42	VanessaE	shouldn't {0,0} be the upper left corner of the plane though, just as it is in blender?
03:42	NathanS21	You're UV mapping is clipping the three pixels on the left and right.
03:42	VanessaE	no
03:42	VanessaE	it's exactly as it's supposed to be
03:42	NathanS21	that should have been a your, oops.
03:43	VanessaE	the red border in the entity image is a "keep out" marker
03:44	NathanS21	The UV layout doesn't care about the size in pixels, but in percentages, so any image size will work, it just scales to that overall dimensions.
03:44	VanessaE	right
03:45	VanessaE	but it's acting like minetest is putting the (0,0) position outside of my UV map and the polygon
03:45	NathanS21	So if your text image only has a slight space from the edge to the letters, the UV mapping should reflect that.
03:45	VanessaE	in fact it's acting as though (0,0) is at the upper-left corner of the whole node space
03:49	NathanS21	Well I exported something wrong, my text is floating on the opposite side of the node...
03:49	VanessaE	heh
03:50	VanessaE	my export settings: Z forward, Y Up, [X] Selection Only, [X] Apply Modifiers, [X] Write Normals, [X] Include UVs, [X] Objects as OBJ Objects, [X] Material Groups
03:51	NathanS21	I bet I had the wrong Forward location.
03:51	NathanS21	Yep, I had -Z set
03:51	NathanS21	I take it word-wrap isn't a thing.
03:52	VanessaE	it is, but it's being obscured by the edges being cut off
03:52	NathanS21	This is weird, worked fine on one line, but not another.
03:53	VanessaE	it's always been glitchy
03:53	NathanS21	odd.
03:53	NathanS21	deleted the old line, and put in a new line, worked fine.
03:53	VanessaE	I'll eventually fix it, if I can get this UV thing figured out
03:54	NathanS21	https://imgur.com/a/aZ9F6JY
03:54	NathanS21	So it should look something like that ^^^
03:55	VanessaE	wait, it works for you?
03:55	NathanS21	I changed the UV layout.
03:55	VanessaE	how?
03:55	VanessaE	what did you change?
03:56	NathanS21	I just added another image to the album.
03:56	NathanS21	not sure how I get a link for it though.
03:57	VanessaE	reloaded.
03:57	NathanS21	oh, just refresh the page.
03:57	VanessaE	ah, you expanded the UV across the width of the image space
03:57	NathanS21	I just scaled the UV map up for the entity object until it was close to the edge of the sample image.
04:02	NathanS21	I can send you the file if you want, but there really isn't anything special about how much I scaled it. I just guessed what might be good.
04:02	VanessaE	right
04:02	VanessaE	but scaling is the wrong solution
04:03	VanessaE	I mean, this (well what you saw at first) is how I always do meshes in minetest
04:03	VanessaE	UV's mapped precisely, etc.
04:03	NathanS21	What you had would work perfectly for the sample checkerboard image you had.
04:04	NathanS21	and if the text used the exact same layout it would work too.
04:04	VanessaE	but that isn't supposed to matter
04:04	VanessaE	a UV map is supposed to stretch and scale the image to fit
04:04	NathanS21	If you used the sample image now it would display the red and black boarder.
04:04	VanessaE	(or the selected part of it)
04:04	NathanS21	It does.
04:05	NathanS21	but it's the image to the black boarder of the layout in Blender.
04:05	VanessaE	yeah, so?
04:05	VanessaE	the UV coors are locked to just inside the red border and the polygon is sized exactly the same
04:05	VanessaE	coords*
04:06	NathanS21	so if you had a picture of the text, and it went to the edge of the image, then part of it would be cut off, because the UV laoyut doesn't go to the edge of the image.
04:06	VanessaE	but that's just it:
04:07	VanessaE	the text DOES go to the edges of the text image, but the text image...
04:07	VanessaE	wait a minute.
04:07	VanessaE	OH FFS.
04:07	VanessaE	NOW I GET IT
04:07	VanessaE	I feel stupid.
04:07	NathanS21	Don't, it's an easy mistake.
04:07	* VanessaE	thinks...
04:08	VanessaE	ok, I know what to do.
04:10	VanessaE	https://i.imgur.com/0sO3kd2.png
04:10	VanessaE	bingo
04:10	VanessaE	now to tune the font scaling params
04:11	NathanS21	:)
04:11	VanessaE	thanks for helping me un-derp this :)
04:12	NathanS21	You are most welcome.
04:15	VanessaE	https://i.imgur.com/QQNwUqo.png
04:15	VanessaE	much bteter
04:15	VanessaE	better*
04:16	NathanS21	Looking great.
04:51	VanessaE	all fixes pushed
04:51	* VanessaE	is happy again :)
04:51	VanessaE	new Dreambuilder release, too
04:51	VanessaE	thanks again, NathanS21
04:52	VanessaE	and now, I think I'm gonna go to bed, my brain's overheated :P
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06:19	ANAND	~seen Wuzzy
06:19	ShadowBot	ANAND: I saw Wuzzy in #minetest-hub 2 years, 4 weeks, 3 days, 8 hours, 54 minutes, and 31 seconds ago saying "who was that?"
06:19	ANAND	Nvm
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10:40	jas_	https://forum.minetest.net/download/file.php?id=19955
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15:36	kilbith	https://www.youtube.com/watch?v=uz1douFQcok
15:36	kilbith	real-time water reflection anyone?
15:40	rubenwardy	nice
15:45	VanessaE	do aliases work on entities?
15:45	rubenwardy	no
15:45	rubenwardy	items only
15:45	VanessaE	didn't think so. ok.
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17:00	Krock	xerox123: you're missing somewhere
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18:35	BuckarooBanzai	!server [РУС]
18:35	MinetestBot	BuckarooBanzai: [РУС] Выживание, Официальный Русскоязычный Сервер \| eu1.multicraft.world:40005 \| Clients: 16/200, 16/23 \| Version: 1.5.0 / MultiCraft \| Ping: 46ms
18:48	Krock	> 200 clients
18:49	Krock	the lag would be amazing
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18:49	sfan5	!server players:most
18:49	MinetestBot	sfan5: CatLandia \| edgy1.net:30025 \| Clients: 28/200, 15/68 \| Version: 0.4.17.1 / minetest \| Ping: 89ms
18:50	sfan5	thats not a lot
18:57	Krock	it's not weekend either
19:05	xerox123	Krock: I think my Rizon BNC died
19:05	xerox123	time to set one up on my own ZNC I guess
19:13	Krock	rip
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20:57	clavi	znc is nice
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21:01	VanessaE	+1
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22:23	tumeninodes	kilbith: you sexy beast... give us more info please. Performance hits? Snags?
22:43	rdococ	o_O
22:56	VanessaE	I like the reflection effect, but the water is too "active", like there's a heavy wind
22:58	tumeninodes	Well, I'm sure that is not planned to be the finished result. It is beautiful... almost made me cry... for joy
22:59	VanessaE	it'll never make it into MT though.
22:59	VanessaE	MT devs hate shaders. :P
23:00	VanessaE	(Plus the way MT or irrlicht uses them, enabling even basic shaders on my badass GPU still costs about 10% of my FPS :P )
23:00	tumeninodes	reverse psychology won;t work... :P
23:00	VanessaE	:P
23:01	tumeninodes	I'm actually eager to hear the details (especially regarding performance cost)
23:02	VanessaE	on mine? idk any details besides "tick this box to reduce your FPS by 10%" :P
23:02	VanessaE	that said, I have shaders enabled in my HDX config
23:02	VanessaE	(since there, waving plants look good)
23:02	tumeninodes	KNow what would be WAY better than waving plants?
23:03	tumeninodes	... you're supposed to say "No... what is better than waving plants?"
23:04	VanessaE	what?
23:04	tumeninodes	:\|
23:04	tumeninodes	... animated plant textures
23:04	VanessaE	that would be trivial to do
23:04	VanessaE	aside from coming up with the animation in the first place.
23:04	tumeninodes	the waving plants shader is creepy and makes me uncomfortable
23:05	tumeninodes	yes, I know... that's why its a better idea... (saves fps)
23:05	VanessaE	except animated textures would only be able to move up/down/sideways relative to their planes, so they couldn't really wave properly.
23:06	tumeninodes	animation can be used to make leaves rustle... and grass flow in the breeze
23:07	tumeninodes	kelp and other underwater plants would look really nice
23:07	tumeninodes	but the waving is cringy
23:10	tumeninodes	What time does kilbith wake up? Like 3am hopefully? xD
23:12	tumeninodes	dropping a teaser like that, then going off to bed... that's just pure evil
23:13	tumeninodes	I need food... bbl
23:21	VanessaE	rustling leaves would be interesting.
23:21	VanessaE	making grass "flow" in the breeze would be tricky but nice
23:22	tumeninodes	tricky only because it means a small trip into .cpp ville
23:23	VanessaE	nah
23:24	VanessaE	it could be done with multiple animated textures and something to swap the node when the wind changes.\
23:24	VanessaE	of course, there would be a fuckton of nodes to swap.......
23:24	VanessaE	so maybe it would be better-done in C++ :)
23:24	tumeninodes	why would you do all that?
23:25	VanessaE	this would be another use-case for the "texture table" idea I posed to judnahad (sp) a while back
23:25	tumeninodes	need to add animation to the plant mesh
23:26	tumeninodes	code
23:26	tumeninodes	thingy
23:27	tumeninodes	timer going off, brb
23:27	VanessaE	or better: have a dynamic textures feature. remember back in the 8-bit days, when changing the glpyh of a character would change the whole screen-ful?
23:29	VanessaE	you'd just need a way for a mod to send a command to connected clients saying "all nodes foo:bar, switch texture[1] to blah.png"
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23:30	rubenwardy	VanessaE: I like shaders
23:31	VanessaE	as do I when they don't cost FPS :) Minetest already has enough troubles with GPU performance :P
23:35	Lone_Wolf	As long as it's disabled by default it would be kinda nice. (For the users with more powerful GPUs anyway...)
23:40	rubenwardy	certainly
23:49	rubenwardy	Do pipeworks autocrafters work with groups?
23:49	rubenwardy	Ideally, the items in the recipe section should only be used to look up the actual recipe
23:49	rubenwardy	then it can use groups
23:50	VanessaE	they do not work with groups
23:50	VanessaE	there's no way to specify a group
23:50	rubenwardy	you can look up the recipe, which gives a group
23:50	rubenwardy	there's no need for the user to specify a group
23:52	VanessaE	sure but what if you have let's say two items, A is in groups foo and bar, B is in groups baz and blah. how do you specify say "group:foo" in one slot and "group:blah" in another?
23:53	rubenwardy	you can look up the craft recipe and use the groups in the craft recipe
23:54	rubenwardy	minetest offers the ability to look up craft recipes from a 3x3 grid because it's needed for crafting
23:54	VanessaE	hm.
23:54	VanessaE	well, pull requests welcome ;)
23:54	rubenwardy	not sure if it would give the source recipe with that function
23:54	rubenwardy	heh
23:54	rubenwardy	I might make a PR to make sorting tubes default to off
23:54	VanessaE	because I have nfi how I'd actually do it
23:54	rubenwardy	the outputs, that is
23:55	VanessaE	(I spent all my coding mojo on the signs_lib/street_signs rewrite-integration thing)
23:55	rubenwardy	I've installed signs_lib on my server
23:55	rubenwardy	it's better than I remember
23:55	rubenwardy	autowrapping! :O
23:55	VanessaE	I keep improving it :)
23:55	VanessaE	btw what version?
23:55	VanessaE	(git tag)
23:56	VanessaE	(the word wrap algorithm needs a rewrite though, it's a little glitchy)

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