[Understanding Physics with Builds]

I posted 2 video tutorials on youtube today on Mesh, Physics and LI in SL. And getting that LI down.

I'm not sure I can post youtube links here for spamming, but my videochannel name is: elout01 or ask me inworld.

 

For a simple house and collision detection;, the lowest Landimpact I can get is using simple (1 sided) planes for the physics model and collision.

 

[Mesh LI suddenly doubled]

While further exploring mesh today, to get the LI down, it can make a huge difference is you use a seperate 'simple' collision model for the physics.

 

I upload my model like normal in the LOD tab;

next I go to the physics tab and choose a seperate model of my build; best just basic cube(s) for collision; Choose one from file.

Step 2: Analyze I select Solid (for like a build with sharp corners/shapes) and press Analyze

Step 3: Simplify I like to choose Retain% then fiddle with Retain: set it to like 10 and press simplify. (fiddle with retain settings higher or lower untill it works for your build)

 

[Mesh LI suddenly doubled]

I found out, getting your model small/bigger (tested in blender & sl)

 

Merge more objects into 1 object to get the size down. (in blender ctrl-J to merge)

(max 8 textures/materials can be used for 1 object in SL)

 

normals: Smooth objects cost a lot less 'vertices'*; compared to their 'flat' version.

 

UV layout: If your object triangles shares some of the same points in the uv-layout; your number of  'vertices'* also can go down.

 

*(with 'vertices' I mean the number that shows up in the model preview; when uploading your model into sl)