Houdini Terrain and fluid solution ( Simulate debris flow )

Effect display ：

One 、 Mind mapping notes

Two 、Houdini Terrain import ：

• World Machine Save height map as ：

1、 double-click Hight Output The detail setting window appears in the node , On the path , Format , After setting , stand-alone "Write to Disk" Generate height map .

• Houdini utilize HeightFile Create a plane ：

1、 Create a flat whiteboard .

• HeightField_File Node import height map ：

1、 Create a node that can externally load a black-and-white height map .

2、001>> Set the path of the black-and-white height map of the image ,002>> Set the way to load the properties of the picture ( Choose here Height Height ). The difference between the two Mask Mask selection ,Height Height shows the terrain .

3、 Set up Height Height , The default import value is very small , The terrain is almost invisible , Here we set in this column 500 Height value of , And WM Agreement .

3、 ... and 、Houdini Terrain and fluid solution ：

• Create an collider for the terrain , Create fluid ：

1、 Create a rigid body for the object , And fluid .

• Fluid viscosity on ：

1、 After adding the fluid type , Get into AutoDopNetWork In node , Select the fluid " The brain " Icon node , Check  Enable Visicosity.

2、 Check Enable Visicosity Under the circumstances , choice Flipfluidobject（ Individual fluid particles ） Conduct Viscosity( Viscosity ) Set it .

• Fluid collision solution ：

1、 Create good after , Control the number of frames , Do the calculation .

Four 、 Get into Unity Observe ：

• VAT Export to Unity：

1、 Get into Out Shunting , establish VAT node , And set the corresponding parameters , Finally, solve .

（ This link VAT For import and export, see Houdini Fluid ＞＞ Particle fluids are exported to unity note ）

Reference material ：

https://www.youtube.com/watch?v=mTQOHGW_T5Y

2、 After the export is normal , Set up VAT Figure and put the material VAT Figure designation , Observe the effect .