From 4d513fb28da7a6d6efd86f9a9687970f6f56746f Mon Sep 17 00:00:00 2001
From: dqn <someonedeng@qq.com>
Date: Fri, 1 Aug 2025 02:21:49 +0800
Subject: [PATCH] stash

---
 src/main.rs | 22 +++++++++++++++++++++-
 src/vec3.rs |  7 +------
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 52f7674..2dccd4d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,6 +11,26 @@ mod point;
 mod ray;
 
 fn main() {
+    gen_gradient_ppm();
+    println!("==================================");
+    ray_scene_render();
+}
+
+
+fn ray_scene_render() {
+    let aspect_ratio = 16.0/9.0;
+    let image_width = 400;
+    // aleast 1px
+    let image_height = ((image_width as f32 / aspect_ratio) as i32).max(1);
+
+    let viewport_height = 2.0;
+    let viewport_width = viewport_height * (image_width as f32 / image_height as f32);
+
+    println!("set image({},{}), viewport({},{})", image_width, image_height, viewport_width, viewport_height)
+}
+
+
+fn gen_gradient_ppm() {
     let ppm_content = gen_gradient_ppm_p3(400, 225);
 
     let v1 = Vec3::new(1.0, 1.0, 1.0);
@@ -26,4 +46,4 @@ fn main() {
     println!("Ray: {:#} => {:#}", ray, ray.at(2.0));
 
     write_image(ppm_content, "./target/test.ppm".to_string())
-}
+}
\ No newline at end of file
diff --git a/src/vec3.rs b/src/vec3.rs
index 3c43797..99f26b0 100644
--- a/src/vec3.rs
+++ b/src/vec3.rs
@@ -1,5 +1,5 @@
 
-use std::{fmt::Display, ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Neg, Sub, SubAssign}};
+use std::{fmt::Display, ops::{Add, AddAssign, Div, Mul, MulAssign, Sub}};
 use std::fmt;
 /*
 * [3]
@@ -35,11 +35,6 @@ impl Vec3 {
             z: self.x * other.y - self.y * other.x,
         }
     }
-
-    /// 向量长度
-    fn magnitude(self) -> f32 {
-        (self.x.powi(2) + self.y.powi(2) + self.z.powi(2)).sqrt()
-    }
 }
 
 impl Add for Vec3 {