Skip to content

Commit 41db6f6

Browse files
centerionwaremrdoob
centerionware
authored and
mrdoob
committed
Add a BufferGeometry based Subdivision Modifier (mrdoob#8165)
* Add a BufferGeometry based Subdivision Modifier This started from the original subdivision modifier, and works in the same way except it has different output - and is much MUCH faster and far easier on RAM. (From >1m and >3gb (queue crashing browsers) to <10 seconds and <500mb on my tests). Expected input: Index'd Buffer Geometry or THREE.Geometry - with uv's. Output: Unindex'd Buffer Geometry. Also introduced is a class I call the 'TypedArrayHelper' which provides THREE objects (Such as Face, Vec3, Vec2) as 'registers' (I was thinking like a CPU register), and controls the typed arrays underneath. It automatically resizes them and provides a trim() function. While resizing arrays is slow, it's still all way faster than millions of vec3 objects on a regular Geometry. * Various Fixes Fixed normal generation according to https://www.opengl.org/wiki/Calculating_a_Surface_Normal maybe various other cleanups. * Revert "Various Fixes" This reverts commit 4348a5f. * Revert "Revert "Various Fixes"" This reverts commit c972529. * change the example to use BufferSubdivisionModifier It's almost all working except for LatheGeometry. I'm not entirely sure what is different about the lathegeometry , but I will investigate later unless someone else figures it out first. * change back to v2 and use phongmaterial change back to v2 and use phongmaterial * dispose of geometries see title. * Remove typedarray.slice's in favor of typedarray.subarray's. * slight cleanup to subarray simply set the new buffers contents to the old buffers contents if possible, otherwise use subarrays
1 parent 69310cc commit 41db6f6

File tree

2 files changed

+813
-40
lines changed

2 files changed

+813
-40
lines changed

0 commit comments

Comments
 (0)