diff options
Diffstat (limited to 'source/blender/blenkernel/intern/subdiv_foreach.c')
| -rw-r--r-- | source/blender/blenkernel/intern/subdiv_foreach.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/source/blender/blenkernel/intern/subdiv_foreach.c b/source/blender/blenkernel/intern/subdiv_foreach.c index 37e47cc5b10..884b8d74790 100644 --- a/source/blender/blenkernel/intern/subdiv_foreach.c +++ b/source/blender/blenkernel/intern/subdiv_foreach.c @@ -1103,6 +1103,23 @@ static void subdiv_foreach_loops_of_poly(SubdivForeachTaskContext *ctx, e3); } +static int subdiv_foreach_loops_corner_index(const float u, + const float v, + const float du, + const float dv) +{ + if (u + du <= 0.5f && v + dv <= 0.5f) { + return 0; + } + else if (u >= 0.5f && v + dv <= 0.5f) { + return 1; + } + else if (u >= 0.5f && v >= 0.5f) { + return 2; + } + return 3; +} + static void subdiv_foreach_loops_regular(SubdivForeachTaskContext *ctx, void *tls, const MPoly *coarse_poly) @@ -1146,12 +1163,13 @@ static void subdiv_foreach_loops_regular(SubdivForeachTaskContext *ctx, const int e1 = e0 + ptex_inner_resolution; const int e2 = e0 + (2 * ptex_inner_resolution - 1); const int e3 = e0 + ptex_inner_resolution - 1; + subdiv_foreach_loops_of_poly(ctx, tls, subdiv_loop_index, ptex_face_index, coarse_poly_index, - 0, + subdiv_foreach_loops_corner_index(u, v, du, dv), 0, v0, e0, @@ -1265,12 +1283,16 @@ static void subdiv_foreach_loops_regular(SubdivForeachTaskContext *ctx, else { e2 = start_edge_index + e2_offset + e2_stride * (i - 1); } + + const float loop_u = u + delta_u * i; + const float loop_v = v + delta_v * i; + subdiv_foreach_loops_of_poly(ctx, tls, subdiv_loop_index, ptex_face_index, coarse_poly_index, - corner, + subdiv_foreach_loops_corner_index(loop_u, loop_v, du, dv), corner, v0, e0, @@ -1280,8 +1302,8 @@ static void subdiv_foreach_loops_regular(SubdivForeachTaskContext *ctx, e2, v3, e3, - u + delta_u * i, - v + delta_v * i, + loop_u, + loop_v, du, dv); v0 = v1; |