Struct block_mesh::QuadCoordinateConfig

pub struct QuadCoordinateConfig {
    pub faces: [OrientedBlockFace; 6],
    pub u_flip_face: Axis,
}

A configuration of XYZ –> NUV axis mappings and orientations of the cube faces for a given coordinate system.

See the geometry module documentation for more information on {N, U, V} space.

Fields

faces: [OrientedBlockFace; 6]

u_flip_face: Axis

For a given coordinate system, one of the two axes that isn’t UP must be flipped in the U texel coordinate direction to avoid incorrect texture mirroring. For example, in a right-handed coordinate system with +Y pointing up, you should set u_flip_face to Axis::X, because those faces need their U coordinates to be flipped relative to the other faces:

                        +X face  O           
        +Z face                / |           
    ^  O--------O          ^ O   |           
    |  |        |          | |   |           
 +V |  |        |       +V | |   O  ^        
    |  |        |          | | /  /          
    |  O--------O          | O  /                 
     ------------ >        |  /  +U
          +U                

                   +Y      
                   | -Z    
             -X____|/____+X
                  /|       
                +Z |       
                   -Y      

As you can see, for the +Z face, +U is toward positive X. But for the +X face, +U is towards negative Z.

Trait Implementations

impl Clone for QuadCoordinateConfig

fn clone(&self) -> QuadCoordinateConfig

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.