To increase the accuracy of your nCloth collisions

To increase the accuracy of your nCloth collisions

Step 1. Select the nCloth or passive object for which you want to increase its accuracy and improve its collisions.

Step 2. In the Attribute Editor do the following:

1. Adjust the Thickness of your nCloth or passive object. Select the nClothShape or nRigidShape tabs, and in the Surface Properties, change the Thickness value. For best results, the collision volume should appear to cling closely to your nCloth.
2. Adjust the Self Collision Thickness of your nCloth object. Select the nClothShape tab, and in the Surface Properties, change the Self Collision Thickness value.
3. Adjust the Collision Flag for your nCloth object. Select the nClothShape tab, and in the Quality Settings section, change the selection in the Collision Flag drop-down list. Face creates the most accurate collisions and Vertex creates the least accurate collisions.
4. Adjust the Self Collision Flag for your nCloth. Select the nClothShape tab, and in the Quality Settings section, change the selection in the Collision Flag drop-down list.
5. Increase the number of collide iterations for your nCloth by adjusting its Max Collide Iterations attribute in the Quality Settings section of its nucleus tab.
6. Resolve interpenetration for your nCloth by adjusting its Trapped Check, Push Out, and Crossover Push attributes in the Quality Settings section of the nClothShape and nRigidShape tabs.

출처 : Create and edit nCloth collisions (from Maya Reference)