@Yon in it’s simplest form, it’s a local coordinate system for a given triangle, so like where (x, y, z) is your position in Cartesian space, (u, v, w) could be your position in barycentric coordinates, where `u + v + w = 1` meaning as long as your u,v and w are all positive and sum to 1, you’re inside the triangle somewhere
giving you an easy way to interpolate values on triangle vertices
@Yon I did a blog post years and years ago about barycentric coordinates here: adamswaab.wordpress.com/2009/12/11/random-point-in-a-triangle-barycentric-coordinates/
@TOADSTORM I’ve had success using `smoothrotation()` in a solver to prevent quaternions from jumping
mrpandey.github.io/d3graphTheory/index.html I found this to be an engaging intro to graph theory 😮 is there a specific area of interest you’re looking for?
The interactive linear algebra book is now completed immersivemath.com/ila/index.html
hey jake, my little rant wasn’t directed to you. sorry if it came off that way! it was just me having a moment of bad temper.
anyways, i’m just putting together a quick fix of your file. i’ll upload it in a minute …
here’s the file.
it’s sparsely/not commented but should do the trick. on the right there is div-free field coming from DOPS to compare against the result …
Attachments in this post:
http://fx-td.com/houdiniandchill/wp-content/uploads/discord/20195404/24/19/poisson1.hiplc
Very nice!
I wrote it all up if you want a peek, nothing revelatory I’m sure for you lot: www.tokeru.com/cgwiki/index.php?title=CurveUnrollTutorial#Roll_Into_Spirals
Just discovered this priceless tutorial page: github.com/libigl/libigl/blob/master/docs/tutorial.md together with its code: github.com/libigl/libigl/tree/master/tutorial
to find the “difference” between your two matrices you can invert the first then multiply by the second – think of it like “remove the transform of matrix1 from matrix2, leaving just the difference between them”. that gives you a matrix, which you can turn into a quaternion, which you can turn into an angle/axis rotation like @w “`matrix3 m1 = ident(); matrix3 m2 = ident(); rotate(m2, 0.5, {1, 0, 0});
matrix3 diff = invert(m1) * m2; vector4 quat = quaternion(diff); v@w = qconvert(quat);“`
drive.google.com/file/d/0B8x1Z3zgTaL7SXIxTFVZLWFDV0E/view?usp=drivesdk
I am new to discord