30 lines
963 B
Rust
30 lines
963 B
Rust
#![allow(unused_variables)]
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extern crate nalgebra as na;
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use na::{Isometry3, Perspective3, Point3, Vector3};
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use std::f32::consts;
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fn main() {
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// Our object is translated along the x axis.
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let model = Isometry3::new(Vector3::x(), na::zero());
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// Our camera looks toward the point (1.0, 0.0, 0.0).
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// It is located at (0.0, 0.0, 1.0).
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let eye = Point3::new(0.0, 0.0, 1.0);
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let target = Point3::new(1.0, 0.0, 0.0);
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let view = Isometry3::look_at_rh(&eye, &target, &Vector3::y());
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// A perspective projection.
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let projection = Perspective3::new(16.0 / 9.0, consts::PI / 2.0, 1.0, 1000.0);
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// The combination of the model with the view is still an isometry.
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let model_view = view * model;
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// Convert everything to a `Matrix4` so that they can be combined.
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let mat_model_view = model_view.to_homogeneous();
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// Combine everything.
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let model_view_projection = projection.as_matrix() * mat_model_view;
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}
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