Doc:2.6/Manual/Physics/Fluid/Obstacleのソースを表示

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= Fluid Obstacle =

This object will be used as an obstacle in the simulation. As with a fluid object, obstacle objects currently should not intersect. As for fluid objects, the actual mesh geometry is used for obstacles. For objects with a volume, make sure that the normals of the obstacle are calculated correctly, and radiating properly (use the {{Literal|Flip Normal}} button, in {{Literal|Edit mode}}, {{Literal|Mesh Tools}} panel, {{Literal|Editing}} context [{{Shortcut|f9}}]), particularly when using a spinned container. Applying the Modifier {{Literal|SubSurf}} before baking the simulation could also be a good idea if the mesh is not animated.

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;{{Literal|Boundary type}}
:Determines the stickiness of the obstacle surface, called “Surface Adhesion”. Surface Adhesion depends in real-world on the fluid and the graininess or friction/adhesion/absorption qualities of the surface.
:*{{Literal|Noslip}} causes the fluid to stick to the obstacle (zero velocity).
:*{{Literal|Free}}(-slip) allows movement along the obstacle (only zero normal velocity).
:*{{Literal|Part}}(-slip) mixes both types, with 0 being mostly noslip, and 1 being identical to freeslip.
:Note that if the mesh is moving, it will be treated as noslip automatically.

[[File:Manual-Part-X-bndtcomp.jpg|thumb|610px|right|Example of the different boundary types for a drop falling onto the slanted wall. From left to right: no-slip, part-slip 0.3, part-slip 0.7 and free-slip.]]{{clr}}

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;{{Literal|PartSlip Amount}}
:Amount of mixing between no- and free-slip, described above.

{{Note|Moving obstacles support|
Blender supports now moving obstacles.

In the past, a  moving obstacle was automatically treated as no slip (sticky), so if you wanted to splash off of a moving object, you had to put a transparent plane in the spot where the fluid will hit the moving object, exactly aligned and shaped as the object, to fake the splash. This is not needed anymore.}}

;{{Literal|Impact Factor}}
:Amount of fluid volume correction for gain/loss from impacting with moving objects. If this object is not moving, this setting has no effect. However, it if is and the fluid collides with it, a negative value takes volume away from the Domain, and a positive number adds to it. Ranges from -2.0 to 10.0.

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