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-rw-r--r--src/global.rs16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/global.rs b/src/global.rs
index 3a1e329..932daa2 100644
--- a/src/global.rs
+++ b/src/global.rs
@@ -1,5 +1,17 @@
-pub const IMG_WIDTH: usize = 256;
-pub const IMG_HEIGHT: usize = 256;
+use crate::calculus::calculus::Point3;
+
+
+
+// "Ideal" aspect ratio, allowing fraction
+pub const ASPECT_RATIO: f32 = 9.0f32 / 5.0f32;
+pub const IMG_WIDTH: usize = 400;
+const IMG_HEIGHT_TMP: usize = (IMG_WIDTH as f32 / ASPECT_RATIO) as usize;
+pub const IMG_HEIGHT: usize = if (IMG_HEIGHT_TMP < 1) { 1 } else { IMG_HEIGHT_TMP };
+
+pub const VIEWPORT_HEIGHT: usize = 2;
+pub const VIEWPORT_WIDTH: usize = VIEWPORT_HEIGHT * (IMG_WIDTH / IMG_HEIGHT);
+pub const FOCAL_LENGTH: f32 = 2.0;
+pub const CAMERA_CENTER: Point3 = Point3 { x: 0f32, y: 0f32, z: 0f32 };
#[derive(Debug, Copy, Clone)]
pub struct Pixel {