Add noise module to main.rs imports

Include noise.rs and material/noise.rs in the module declarations
to properly support noise functionality in the codebase.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: peterbraden

demo/scenes/noise-test.json

@@ -0,0 +1,137 @@
+{
+  "width": 640,
+  "height": 480,
+
+  "supersamples": 35,
+  "background": [0.2, 0.2, 0.2],
+
+  "chunk_size": 64,
+  "samples_per_chunk": 2,
+  "shadow_bias": 0.0001,
+  "max_depth": 2,
+
+  "materials": {
+    "PERLIN_NOISE": {
+      "type": "noise",
+      "base_material": "WHITE_PLASTIC",
+      "noise_type": "perlin",
+      "color": [0.8, 0.1, 0.1],
+      "scale": 0.2,
+      "blend_factor": 0.8
+    },
+    "FBM_NOISE": {
+      "type": "noise",
+      "base_material": "WHITE_PLASTIC",
+      "noise_type": "fbm",
+      "color": [0.1, 0.8, 0.1],
+      "scale": 0.2,
+      "blend_factor": 0.8,
+      "octaves": 4,
+      "persistence": 0.5,
+      "lacunarity": 2.0
+    },
+    "MARBLE_NOISE": {
+      "type": "noise",
+      "base_material": "WHITE_PLASTIC",
+      "noise_type": "marble",
+      "color": [0.1, 0.1, 0.8],
+      "scale": 0.05,
+      "blend_factor": 0.8
+    },
+    "TURBULENCE": {
+      "type": "noise",
+      "base_material": "GOLD",
+      "noise_type": "turbulence",
+      "color": [0.8, 0.8, 0.2],
+      "scale": 0.1,
+      "blend_factor": 0.6,
+      "octaves": 4
+    },
+    "WORLEY": {
+      "type": "noise",
+      "base_material": "WHITE_PLASTIC",
+      "noise_type": "worley",
+      "color": [0.8, 0.2, 0.8],
+      "scale": 0.5,
+      "blend_factor": 0.8,
+      "point_density": 2.0,
+      "seed": 42
+    },
+    "WHITE_PLASTIC": {
+      "type": "lambertian",
+      "albedo": [0.9, 0.9, 0.9]
+    },
+    "GOLD": {
+      "type": "metal",
+      "reflective": [1, 0.85, 0.57],
+      "roughness": 0.1
+    },
+    "WHITE_MARBLE": {
+      "type": "lambertian",
+      "albedo": [0.9, 0.9, 0.9]
+    },
+    "BLACK_MARBLE": {
+      "type": "lambertian",
+      "albedo": [0.1, 0.1, 0.1]
+    }
+  },
+  "media": {
+    "CHECKERED_MARBLE": {
+      "type": "checkered-y-plane",
+      "m1": "WHITE_MARBLE",
+      "m2": "BLACK_MARBLE"
+    }
+  },
+
+  "camera": {
+    "location": [5, 5, -15],
+    "lookat" : [0, 2, 0],
+    "up" : [0, 1, 0],
+    "angle": 0.8,
+    "aperture": 0.1
+  },
+  
+  "lights" : [],
+  "variables" : {},
+
+  "objects": [
+    {
+      "type": "sphere",
+      "radius": 2,
+      "location": [-5, 2, 0],
+      "material" : "PERLIN_NOISE"
+    },
+    {
+      "type": "sphere",
+      "radius": 2,
+      "location": [-2, 2, 4],
+      "material" : "FBM_NOISE"
+    },
+    {
+      "type": "sphere",
+      "radius": 2,
+      "location": [2, 2, 4],
+      "material" : "MARBLE_NOISE"
+    },
+    {
+      "type": "sphere",
+      "radius": 2,
+      "location": [5, 2, 0],
+      "material" : "TURBULENCE"
+    },
+    {
+      "type": "sphere",
+      "radius": 2,
+      "location": [0, 2, -5],
+      "material" : "WORLEY"
+    },
+    { 
+      "type" : "checkeredplane",
+      "y": 0,
+      "medium" : "CHECKERED_MARBLE"
+    },
+    { 
+      "type" : "skysphere"
+    }
+  ]
+}

src/main.rs

@@ -34,6 +34,7 @@ mod material {
     pub mod functions;
     pub mod legacy;
     pub mod plastic;
+    pub mod noise;
 }
 mod intersection;
 mod sceneobject;
@@ -67,6 +68,7 @@ mod procedural {
     pub mod fireworks;
 }
 mod participatingmedia;
+mod noise;
 
 use crate::trace::trace;
 use crate::rendercontext::RenderContext;

src/material/mod.rs

@@ -60,6 +60,23 @@ pub enum SamplesRequired {
     Many, // Can only be derived from a Monte-Carlo integration of many samples.
 }
 
+// Module declarations
+pub mod ambient;
+pub mod dielectric;
+pub mod diffuse_light;
+pub mod functions;
+pub mod lambertian;
+pub mod legacy;
+pub mod model;
+pub mod normal;
+pub mod noise;
+pub mod plastic;
+pub mod specular;
+pub mod texture;
+
+// Re-export noise module components for external use
+pub use noise::{NoiseTexture, NoiseType};
+
 /*
 pub trait BSDFToRename{