diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_voronoi_texture.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_voronoi_texture.osl | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/intern/cycles/kernel/shaders/node_voronoi_texture.osl b/intern/cycles/kernel/shaders/node_voronoi_texture.osl index 04d61c32f8a..b95abc7f362 100644 --- a/intern/cycles/kernel/shaders/node_voronoi_texture.osl +++ b/intern/cycles/kernel/shaders/node_voronoi_texture.osl @@ -175,14 +175,13 @@ void voronoi_distance_to_edge_1d(float w, float randomness, output float outDist float cellPosition = floor(w); float localPosition = w - cellPosition; - float minDistance = 8.0; - for (int i = -1; i <= 1; i++) { - float cellOffset = float(i); - float pointPosition = cellOffset + hash_float_to_float(cellPosition + cellOffset) * randomness; - float distanceToPoint = distance(pointPosition, localPosition); - minDistance = min(distanceToPoint, minDistance); - } - outDistance = minDistance; + float midPointPosition = hash_float_to_float(cellPosition) * randomness; + float leftPointPosition = -1.0 + hash_float_to_float(cellPosition - 1.0) * randomness; + float rightPointPosition = 1.0 + hash_float_to_float(cellPosition + 1.0) * randomness; + float distanceToMidLeft = distance((midPointPosition + leftPointPosition) / 2.0, localPosition); + float distanceToMidRight = distance((midPointPosition + rightPointPosition) / 2.0, localPosition); + + outDistance = min(distanceToMidLeft, distanceToMidRight); } void voronoi_n_sphere_radius_1d(float w, float randomness, output float outRadius) |