vera/
transform.rs

1/// The evolution of a transformation or colorization.
2#[derive(Copy, Clone)]
3pub enum Evolution {
4    /// Constant speed from start to end.
5    Linear,
6    /// Fast at the beginning, slow at the end.
7    FastIn,
8    /// Fast at the beginning, slow at the end.
9    SlowOut,
10    /// Slow at the beginning, fast at the end.
11    FastOut,
12    /// Slow at the beginning, fast at the end.
13    SlowIn,
14    /// Slow at ends, fast in middle.
15    FastMiddle,
16    /// Slow at ends, fast in middle.
17    SlowInOut,
18    /// Fast at ends, slow in middle.
19    FastInOut,
20    /// Fast at ends, slow in middle.
21    SlowMiddle,
22}
23
24// -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
25
26/// Data for the transformation of a single vertex or shape.
27/// You can have several transformations happening simultaneously, but the order of the transformations is likely important.
28pub struct Tf {
29    /// The type & value of the transformation.
30    pub t: Transformation,
31    /// The speed evolution of the transformation.
32    pub e: Evolution,
33    /// The start time of the transformation.
34    pub start: f32,
35    /// The duration of the transformation.
36    pub end: f32,
37}
38
39/// The available transformations
40/// Their doc is prefixed with their general use case: Vertex/Model, View, Projection.
41#[derive(Clone, Copy)]
42pub enum Transformation {
43    /// Vertex/Model: A scale operation with the provided X, Y and Z scaling.
44    Scale(f32, f32, f32),
45    /// Vertex/Model: A translate operation with the provided X, Y and Z scaling.
46    Translate(f32, f32, f32),
47    /// Vertex/Model: A rotate operation around the X axis with the provided counter-clockwise angle, in radians.
48    RotateX(f32),
49    /// Vertex/Model: A rotate operation around the Y axis with the provided counter-clockwise angle, in radians.
50    RotateY(f32),
51    /// Vertex/Model: A rotate operation around the Z axis with the provided counter-clockwise angle, in radians.
52    RotateZ(f32),
53
54    /// View: 
55    Lookat(f32, f32, f32, f32, f32, f32, f32, f32, f32),
56    /// View: 
57    Move(f32, f32, f32),
58    /// View: 
59    Pitch(f32),
60    /// View: 
61    Yaw(f32),
62    /// View: 
63    Roll(f32),
64
65    /// Projection: 
66    Orthographic(f32, f32, f32, f32, f32, f32),
67    /// Projection: 
68    Perspective(f32, f32, f32, f32, f32, f32),
69}
70
71// -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
72
73/// Data for the transformation of a single vertex or shape.
74/// You can have several transformations happening simultaneously, but the order of the transformations is likely important.
75pub struct Cl {
76    /// The type & value of the transformation.
77    pub c: Colorization,
78    /// The speed evolution of the transformation.
79    pub e: Evolution,
80    /// The start time of the transformation.
81    pub start: f32,
82    /// The duration of the transformation.
83    pub end: f32,
84}
85
86/// The available transformations
87/// Their doc is prefixed with their general use case: Vertex/Model, View, Projection.
88#[derive(Clone, Copy)]
89pub enum Colorization {
90    /// Changes the current color to this new rgba color.
91    ToColor(f32, f32, f32, f32),
92}
vera/transform.rs

vera/
transform.rs
