Builder Brush Help

[X-51]

Hey, Im starting my first map, and the UT3 Videos instruct me to use the builder brush to subtract my space to create rooms or hallways. Well they also mention the importance of snapping to the grid. MY problem is that when I want to change the shape of my builder brush, my dimensions never equal up so that they snap to the grid all the way around. Its not a problem of making it snap, i know how to do that, its a problem of getting the dimensions right so I can make the brush bigger or smaller AND line up on the grid all the way around. Thanks

[Chromatik]

Go under the View menu and make sure that under "Drag Grid", "Use Drag Grid" is checked. Rotate Grid the same if you are rotating brushes around. Past that right clicking on the vertexes in geometry mode is your best friend.

[DGUnreal]

I want to change the shape of my builder brush, my dimensions never equal up so that they snap to the grid all the way around.

When working with CSG Brushes you always want to work with multiples-of-power-of-two values. And usually values no smaller than 4 or 8. For example: 8, 16, 24, 32, 40, 48, 128, 256, 32768, etc.
For rough work (rooms, halls) it is best to stick with multiples of 16, 32, or 64. For finer work (trim) you can go down to multiples of 4 or 8, but trim is usually best done with StaticMeshes if possible.

If you are attempting to use values such as 9, 100, 175, 500, etc., these won't fit onto any grid size except 1, and you are heading right into BSP issues if you do this haphazardly.

[X-51]

Thanks a lot!