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Sculpt: Add vertex interpolation for the dynamic topology

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This change makes it so the newly added vertices have properly
interpolated attributes. This includes things like vertex colors.
New vertices are created by splitting edges, so the interpolation
mixes between the edge's two vertices equally.

Co-Authored-By: Hans Goudey <hans@blender.org>
This commit is contained in:
Sergey Sharybin
2023-10-06 12:15:48 +02:00
committed by Sergey Sharybin
parent 1885116a9a
commit 2a7e06b98d
1 changed files with 7 additions and 4 deletions
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11
source/blender/blenkernel/intern/pbvh_bmesh.cc
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@@ -480,7 +480,9 @@ BLI_INLINE PBVHNode *pbvh_bmesh_node_from_face(PBVH *pbvh, const BMFace *key)
}
static BMVert *pbvh_bmesh_vert_create(PBVH *pbvh,
int node_index,
const BMVert *v1,
const BMVert *v2,
const int node_index,
const float co[3],
const float no[3],
const int cd_vert_mask_offset)
@@ -490,8 +492,9 @@ static BMVert *pbvh_bmesh_vert_create(PBVH *pbvh,
BLI_assert((pbvh->nodes.size() == 1 || node_index) && node_index <= pbvh->nodes.size());
/* avoid initializing customdata because its quite involved */
BMVert *v = BM_vert_create(pbvh->header.bm, co, nullptr, BM_CREATE_SKIP_CD);
CustomData_bmesh_set_default(&pbvh->header.bm->vdata, &v->head.data);
BMVert *v = BM_vert_create(pbvh->header.bm, co, nullptr, BM_CREATE_NOP);
BM_data_interp_from_verts(pbvh->header.bm, v1, v2, v, 0.5f);
/* This value is logged below */
copy_v3_v3(v->no, no);
@@ -1117,7 +1120,7 @@ static void pbvh_bmesh_split_edge(EdgeQueueContext *eq_ctx,
int node_index = BM_ELEM_CD_GET_INT(e->v1, eq_ctx->cd_vert_node_offset);
BMVert *v_new = pbvh_bmesh_vert_create(
pbvh, node_index, co_mid, no_mid, eq_ctx->cd_vert_mask_offset);
pbvh, e->v1, e->v2, node_index, co_mid, no_mid, eq_ctx->cd_vert_mask_offset);
/* update paint mask */
if (eq_ctx->cd_vert_mask_offset != -1) {