diff --git a/lib/wgputoy/bind.ts b/lib/wgputoy/bind.ts
index 08a7388..d50575f 100644
--- a/lib/wgputoy/bind.ts
+++ b/lib/wgputoy/bind.ts
@@ -93,7 +93,12 @@ class BufferBinding<H> implements Binding {
     // bind: (buffer: GPUBuffer) => GPUBufferBinding;
     decl: string;
 
-    constructor(params) {
+    constructor(params: {
+        host: H;
+        device: GPUBuffer;
+        layout: GPUBufferBindingLayout;
+        decl: string;
+    }) {
         this.host = params.host;
         this.device = params.device;
         this.layout = params.layout;
@@ -124,7 +129,12 @@ class TextureBinding implements Binding {
     layout: GPUTextureBindingLayout;
     decl: string;
 
-    constructor(params) {
+    constructor(params: {
+        device: GPUTexture;
+        view: GPUTextureView;
+        layout: GPUTextureBindingLayout;
+        decl: string;
+    }) {
         this.device = params.device;
         this.view = params.view;
         this.layout = params.layout;
@@ -383,7 +393,7 @@ export class Bindings {
                 size: USER_DATA_BYTES,
                 usage: GPUBufferUsage.STORAGE | GPUBufferUsage.COPY_DST
             }),
-            layout: { ...storageBuffer, buffer: { type: 'read-only-storage' } },
+            layout: { ...storageBuffer, type: 'read-only-storage' },
             // bind: (buffer) => ({ offset: 0, size: USER_DATA_BYTES }),
             decl: 'var<storage,read> data: Data'
         });
@@ -454,7 +464,7 @@ export class Bindings {
                 dimension: '2d-array'
             }),
             layout: {
-                sampleType: 'float',
+                sampleType: passF32 ? 'unfilterable-float' : 'float',
                 viewDimension: '2d-array',
                 multisampled: false
             },
diff --git a/lib/wgputoy/preprocessor.ts b/lib/wgputoy/preprocessor.ts
index bd9a137..bf7483c 100644
--- a/lib/wgputoy/preprocessor.ts
+++ b/lib/wgputoy/preprocessor.ts
@@ -6,8 +6,6 @@ import { fetchInclude, parseUint32, WGSLError } from './utils';
 
 // Regular expressions for preprocessing
 const RE_COMMENT = /(\/\/.*|\/\*[\s\S]*?\*\/)/g;
-const RE_QUOTES = /"((?:[^\\"]|\\.)*)"/g;
-const RE_CHEVRONS = /<(.*)>/;
 const RE_WORD = /[a-zA-Z_][a-zA-Z0-9_]*/g;
 
 const STRING_MAX_LEN = 20;
@@ -130,7 +128,7 @@ export class Preprocessor {
         // Handle string literals if enabled
         if (this.specialStrings) {
             let error: WGSLError | null = null;
-            line = line.replace(RE_QUOTES, match => {
+            line = line.replace(/"((?:[^\\"]|\\.)*)"/g, match => {
                 try {
                     const unescaped = JSON.parse(match) as string;
                     const chars = Array.from(unescaped).map(c => c.charCodeAt(0));
@@ -173,17 +171,17 @@ export class Preprocessor {
             throw new WGSLError('Invalid #include syntax', lineNum);
         }
 
-        const nameMatcher = tokens[1].match(RE_QUOTES) || tokens[1].match(RE_CHEVRONS);
+        const nameMatcher = tokens[1].match(/"(.*)"/) || tokens[1].match(/<(.*)>/);
         if (!nameMatcher) {
             throw new WGSLError('Path must be enclosed in quotes or chevrons', lineNum);
         }
 
         const name = nameMatcher[1];
-        if (RE_CHEVRONS.test(tokens[1]) && name === 'string') {
+        if (/<.*>/.test(tokens[1]) && name === 'string') {
             this.specialStrings = true;
         }
 
-        const includePath = RE_CHEVRONS.test(tokens[1]) ? `std/${name}` : name;
+        const includePath = /<.*>/.test(tokens[1]) ? `std/${name}` : name;
         const includeContent = await fetchInclude(includePath);
 
         if (!includeContent) {