Houdini 20.5 COPs draw geo and material modification TUTorial. hip file

RND into the new COPs and ways to "paint" geometry and modify nearby materials using a few of the ways to world to uv space and rasterizations. I'm sure there are better ways to do much of this, please advise
#houdini #houdinifx #houdini205 #houdiniCOPs #houdinitutorial
hip file: www.patreon.co...
wrangle COP:
@C = uvsample(1, "uv_paint", "uv", v@P);
uvflatten seams for pig:
p2388-2391 p2282-2388 p2281-2282 p2280-2281 p2290-2291 p2243-2290 p2241-2243 p2245-2241 p2244-2245 p2170-2244 p2208-2170 p2207-2208 p1922-2207 p1921-1922 p1878-1921 p1366-1365-1364-1363-1362-1361-1360-1359-1358-1357-1356-1355-1354-1353-1352-1351-1350-1349-1348-1347-1898-1899-1897-1896-1895-1894-1893-1892-1891-1890-1889-1888-1887-1886-1885-1884-1883-1882-1881-1880-1879-1878-1366 p2291-1001-999-947-866 p865-866 p865-1568 p1581-1554-1382-1524-1553-1552-1551-1550-1549-1548-1547-1546-649-1545-1544-1555-1556-1557-612-1558-1559-1560-1561-1590-1574-872-904-907-2391-2390-2395-2428-394-378 p407-408-409-410-2697-411-412-413-424-423-2658-422-421-420-419-418-417-416-415-444-591-414-387-400-2435 p2434-2435 p2434-2348-2295-2293-2291 p1900-1898 p1900-1942-2186-2271-2164-2365-2297-340-356-2582-338-281-279-269-268-267-331-226-184-2609-270-2142-2121-2097-2064-2061-2047-2045-2027-2026-2025-2023-2021-2019-2017-2015-2011-2008-1954-2779-1951-1952-1953-1957-1958-1959-1960-1973-1948-1949-2134-166-2591-229-230-182-120-110-2562-371-160-158-157-156-122-121 p2291-2280 p407-378 p1568-1581

[@vincentthomas8492]

Hello! Thanks for the video. I believe your description of uvsample at 20m30 is uncorrect...

[@9hole_com]

Yes sorry @vincentthomas8492 was very tired, I had it backwards, it's looking in uv at Position for uvpaint values. I think that's correct. Thank you for noting.
I also found uvsample and the xyzdist vex methods have slight differences compared to SOP raster setup to UV which is what the raster setup COP is actually doing inside. But can't use the Raster Setup COP as Extrapolate Boundaries COP doesn't work here. Almost, but up close there are seam issues that are really revealed with uv to uv mapping like here.
So I made an OCL version that does uv to uv in one node, and also does P in one node, vs raster setup then raster geometry. I'll release that tomorrow.

[@MDA_01]

Very interesting. You have an amazing level of knowledge - thanks for sharing it : )

[@troopxl666]

Thanks!

[@JacKsCave]

Thanks!