finish mandelbrot

boralg · Jun 26, 2024 · 96c8a73 · 96c8a73
1 parent 96d6491
commit 96c8a73
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Showing 7 changed files with 154 additions and 235 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/examples/src/mandelbrot/assets/shader.wgsl b/examples/src/mandelbrot/assets/shader.wgsl
@@ -23,8 +23,14 @@ fn vs_main(@location(0) position: vec3<f32>, @location(1) uv: vec2<f32>) -> Vert
 fn fs_main(@location(0) fragUV: vec2<f32>) -> @location(0) vec4<f32> {
     let max_iter: u32 = 100u;
 
-    // Translate fragUV to the complex plane using cursor position
-    let c = uniforms.translation + uniforms.scale * (fragUV);
+    // Calculate the coordinates in the complex plane
+    let centered_uv = (fragUV * 2.0 - vec2<f32>(1.0, 1.0)); // Convert [0,1] range to [-1,1]
+
+    // Adjust coordinates based on translation and scale, without affecting rotation
+    let c = uniforms.translation + vec2<f32>(
+        centered_uv.x * uniforms.scale,
+        centered_uv.y * uniforms.scale
+    );
 
     var z: vec2<f32> = vec2<f32>(0.0, 0.0);
     var iter: u32 = 0u;