Blending smoothly between a high-poly mesh and its low-poly representation is a subtle but useful effect. In this “Low Poly Transform” Houdini tutorial, you’ll learn how to create two versions of the same object, one smooth and one faceted, with the exact same topology. This enables you to blend between the two using a falloff value. We’ll use barycentric coordinates to interpolate the low-poly falloff values and transfer them to the high-poly mesh and then mix the positions and normal with VOPs.
HOW TO SMOOTHLY BLEND FROM
HIGH TO LOW POLY MODEL IN HOUDINI
Tutorial by entagma.com
01:05 The start file
02:55 Creating a SDF
04:00 Reprojecting the points of the low-poly
06:40 Subdividing to generate a pseudo low-poly object
10:00 Reprojecting again to create a high-poly with the same topology
15:00 Creating a falloff value
20:00 Transferring the falloff value to the high-poly
22:10 Finding barycentric coordinates
25:15 Blending the positions
27:35 Blending the normals
Download the Houdini Project:
Start File
entagma.com/wp-content/downloads/LPT_Start.hip.zip
End File
entagma.com/wp-content/downloads/LPT_End.hip.zip
Bust model
myminifactory.com/de/object/3d-print-bust-of-mary-from-piet-in-st-peter-s-basilica-vatican-11423