diff options
Diffstat (limited to 'source/blender/blenlib/intern/noise.cc')
| -rw-r--r-- | source/blender/blenlib/intern/noise.cc | 204 |
1 files changed, 151 insertions, 53 deletions
diff --git a/source/blender/blenlib/intern/noise.cc b/source/blender/blenlib/intern/noise.cc index 5fa2746d07f..4259237af6e 100644 --- a/source/blender/blenlib/intern/noise.cc +++ b/source/blender/blenlib/intern/noise.cc @@ -1528,9 +1528,15 @@ void voronoi_f1( targetPosition = pointPosition; } } - *r_distance = minDistance; - *r_color = hash_float_to_float3(cellPosition + targetOffset); - *r_w = targetPosition + cellPosition; + if (r_distance != nullptr) { + *r_distance = minDistance; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + targetOffset); + } + if (r_w != nullptr) { + *r_w = targetPosition + cellPosition; + } } void voronoi_smooth_f1(const float w, @@ -1555,14 +1561,26 @@ void voronoi_smooth_f1(const float w, 0.0f, 1.0f, 0.5f + 0.5f * (smoothDistance - distanceToPoint) / smoothness); float correctionFactor = smoothness * h * (1.0f - h); smoothDistance = mix(smoothDistance, distanceToPoint, h) - correctionFactor; - correctionFactor /= 1.0f + 3.0f * smoothness; - const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); - smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; - smoothPosition = mix(smoothPosition, pointPosition, h) - correctionFactor; + if (r_color != nullptr || r_w != nullptr) { + correctionFactor /= 1.0f + 3.0f * smoothness; + if (r_color != nullptr) { + const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); + smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; + } + if (r_w != nullptr) { + smoothPosition = mix(smoothPosition, pointPosition, h) - correctionFactor; + } + } + } + if (r_distance != nullptr) { + *r_distance = smoothDistance; + } + if (r_color != nullptr) { + *r_color = smoothColor; + } + if (r_w != nullptr) { + *r_w = cellPosition + smoothPosition; } - *r_distance = smoothDistance; - *r_color = smoothColor; - *r_w = cellPosition + smoothPosition; } void voronoi_f2( @@ -1596,9 +1614,15 @@ void voronoi_f2( positionF2 = pointPosition; } } - *r_distance = distanceF2; - *r_color = hash_float_to_float3(cellPosition + offsetF2); - *r_w = positionF2 + cellPosition; + if (r_distance != nullptr) { + *r_distance = distanceF2; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + offsetF2); + } + if (r_w != nullptr) { + *r_w = positionF2 + cellPosition; + } } void voronoi_distance_to_edge(const float w, const float randomness, float *r_distance) @@ -1706,9 +1730,15 @@ void voronoi_f1(const float2 coord, } } } - *r_distance = minDistance; - *r_color = hash_float_to_float3(cellPosition + targetOffset); - *r_position = targetPosition + cellPosition; + if (r_distance != nullptr) { + *r_distance = minDistance; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + targetOffset); + } + if (r_position != nullptr) { + *r_position = targetPosition + cellPosition; + } } void voronoi_smooth_f1(const float2 coord, @@ -1737,15 +1767,28 @@ void voronoi_smooth_f1(const float2 coord, 0.0f, 1.0f, 0.5f + 0.5f * (smoothDistance - distanceToPoint) / smoothness); float correctionFactor = smoothness * h * (1.0f - h); smoothDistance = mix(smoothDistance, distanceToPoint, h) - correctionFactor; - correctionFactor /= 1.0f + 3.0f * smoothness; - const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); - smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; - smoothPosition = float2::interpolate(smoothPosition, pointPosition, h) - correctionFactor; + if (r_color != nullptr || r_position != nullptr) { + correctionFactor /= 1.0f + 3.0f * smoothness; + if (r_color != nullptr) { + const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); + smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; + } + if (r_position != nullptr) { + smoothPosition = float2::interpolate(smoothPosition, pointPosition, h) - + correctionFactor; + } + } } } - *r_distance = smoothDistance; - *r_color = smoothColor; - *r_position = cellPosition + smoothPosition; + if (r_distance != nullptr) { + *r_distance = smoothDistance; + } + if (r_color != nullptr) { + *r_color = smoothColor; + } + if (r_position != nullptr) { + *r_position = cellPosition + smoothPosition; + } } void voronoi_f2(const float2 coord, @@ -1787,9 +1830,15 @@ void voronoi_f2(const float2 coord, } } } - *r_distance = distanceF2; - *r_color = hash_float_to_float3(cellPosition + offsetF2); - *r_position = positionF2 + cellPosition; + if (r_distance != nullptr) { + *r_distance = distanceF2; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + offsetF2); + } + if (r_position != nullptr) { + *r_position = positionF2 + cellPosition; + } } void voronoi_distance_to_edge(const float2 coord, const float randomness, float *r_distance) @@ -1928,9 +1977,15 @@ void voronoi_f1(const float3 coord, } } } - *r_distance = minDistance; - *r_color = hash_float_to_float3(cellPosition + targetOffset); - *r_position = targetPosition + cellPosition; + if (r_distance != nullptr) { + *r_distance = minDistance; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + targetOffset); + } + if (r_position != nullptr) { + *r_position = targetPosition + cellPosition; + } } void voronoi_smooth_f1(const float3 coord, @@ -1960,16 +2015,29 @@ void voronoi_smooth_f1(const float3 coord, 0.0f, 1.0f, 0.5f + 0.5f * (smoothDistance - distanceToPoint) / smoothness); float correctionFactor = smoothness * h * (1.0f - h); smoothDistance = mix(smoothDistance, distanceToPoint, h) - correctionFactor; - correctionFactor /= 1.0f + 3.0f * smoothness; - const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); - smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; - smoothPosition = float3::interpolate(smoothPosition, pointPosition, h) - correctionFactor; + if (r_color != nullptr || r_position != nullptr) { + correctionFactor /= 1.0f + 3.0f * smoothness; + if (r_color != nullptr) { + const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); + smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; + } + if (r_position != nullptr) { + smoothPosition = float3::interpolate(smoothPosition, pointPosition, h) - + correctionFactor; + } + } } } } - *r_distance = smoothDistance; - *r_color = smoothColor; - *r_position = cellPosition + smoothPosition; + if (r_distance != nullptr) { + *r_distance = smoothDistance; + } + if (r_color != nullptr) { + *r_color = smoothColor; + } + if (r_position != nullptr) { + *r_position = cellPosition + smoothPosition; + } } void voronoi_f2(const float3 coord, @@ -2013,9 +2081,15 @@ void voronoi_f2(const float3 coord, } } } - *r_distance = distanceF2; - *r_color = hash_float_to_float3(cellPosition + offsetF2); - *r_position = positionF2 + cellPosition; + if (r_distance != nullptr) { + *r_distance = distanceF2; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + offsetF2); + } + if (r_position != nullptr) { + *r_position = positionF2 + cellPosition; + } } void voronoi_distance_to_edge(const float3 coord, const float randomness, float *r_distance) @@ -2166,9 +2240,15 @@ void voronoi_f1(const float4 coord, } } } - *r_distance = minDistance; - *r_color = hash_float_to_float3(cellPosition + targetOffset); - *r_position = targetPosition + cellPosition; + if (r_distance != nullptr) { + *r_distance = minDistance; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + targetOffset); + } + if (r_position != nullptr) { + *r_position = targetPosition + cellPosition; + } } void voronoi_smooth_f1(const float4 coord, @@ -2200,18 +2280,30 @@ void voronoi_smooth_f1(const float4 coord, 0.0f, 1.0f, 0.5f + 0.5f * (smoothDistance - distanceToPoint) / smoothness); float correctionFactor = smoothness * h * (1.0f - h); smoothDistance = mix(smoothDistance, distanceToPoint, h) - correctionFactor; - correctionFactor /= 1.0f + 3.0f * smoothness; - const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); - smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; - smoothPosition = float4::interpolate(smoothPosition, pointPosition, h) - - correctionFactor; + if (r_color != nullptr || r_position != nullptr) { + correctionFactor /= 1.0f + 3.0f * smoothness; + if (r_color != nullptr) { + const float3 cellColor = hash_float_to_float3(cellPosition + cellOffset); + smoothColor = float3::interpolate(smoothColor, cellColor, h) - correctionFactor; + } + if (r_position != nullptr) { + smoothPosition = float4::interpolate(smoothPosition, pointPosition, h) - + correctionFactor; + } + } } } } } - *r_distance = smoothDistance; - *r_color = smoothColor; - *r_position = cellPosition + smoothPosition; + if (r_distance != nullptr) { + *r_distance = smoothDistance; + } + if (r_color != nullptr) { + *r_color = smoothColor; + } + if (r_position != nullptr) { + *r_position = cellPosition + smoothPosition; + } } void voronoi_f2(const float4 coord, @@ -2258,9 +2350,15 @@ void voronoi_f2(const float4 coord, } } } - *r_distance = distanceF2; - *r_color = hash_float_to_float3(cellPosition + offsetF2); - *r_position = positionF2 + cellPosition; + if (r_distance != nullptr) { + *r_distance = distanceF2; + } + if (r_color != nullptr) { + *r_color = hash_float_to_float3(cellPosition + offsetF2); + } + if (r_position != nullptr) { + *r_position = positionF2 + cellPosition; + } } void voronoi_distance_to_edge(const float4 coord, const float randomness, float *r_distance) |