Physics Cost test

Test Plan Name:

Physics Cost test

Sources

https://wiki.secondlife.com/wiki/Mesh/Mesh_physics

Purpose

Test the Physics Cost of prims, meshes and linked sets.

Setup

• Open Advanced menu > Show Debug Settings and set ShowAdvancedBuilderOptions = TRUE

Tests

Verify the mesh asset is valid

• Verify that a single convex hull is limited to 256 triangles.
  • How do I attempt to upload a 257 triangle mesh?

• Verify that a decomposition cannot have more than 256 hulls.
  • How do I attempt to create or upload a 267 hull decomposition?

Boxes set to Convex Hull

• Create a linkset consisting of 10 boxes. Set one of them to have shape type Convex Hull (to trigger the new accounting)
• Arrange them and scale the linkset so that the overall linkset scale is 3m x 4m x 5m
• Verify the object is 2 prim equivalents.

Mesh model 1

• Import/upload the duck model using a physics decomposition. Let's say the resulting decomposition has a physics cost of 13 prim equivalents (it did in my experiment)
• After setting the duck to "PRIM" so that it uses the decomposition, the cost is 13
• Scale the duck to 10m x 10m x 10m.
• Verify its physics cost is still 13
• Set the duck Physical.
• Verify its physics cost is 65 prim equivalents.