Moiré pattern
This page describes how the Moiré pattern looks like ingame and how to fix it.
Showcase of the Moiré pattern
How to fix this pattern in Brawlbox
Step 1: Make sure your texture has Mipmaps.
Step 2: Open your MDL0 in the latest Brawlbox Version.
Step 3: Open the Material Folder and open one Material.
Step 4: Make sure your Scale is (1,1) or (1,-1) if your Track was imported with CTools.
Step 5: Change MinFilter from "Linear" to "Linear_Mipmap_Linear".
Step 6: Save your course_model.brres and import it into your SZS File.
How to fix this patter with Wiimms SZS Tools
This method is not tested but should work.
Step 1: Make sure your texture has Mipmaps.
Step 2: Extract your course.MDL0 from the course_model.brres.
Step 3: Extract all Files from the MDL0
Step 4: Open the "MDL0.s08_0.materials.XX.bin".
Step 5: Go to the MinFilter Offset of the Material Layer and change it to 00 05.
Step 6: Reencode the MDL0 and course_model.brres.