Add wgsl missing float image format inference

source/slang/slang-check-decl.cpp

@@ -1668,6 +1668,20 @@ ImageFormat inferImageFormatFromTextureType(
                     break;
                 }
                 break;
+            case BaseType::Float:
+                switch (vectorWidth)
+                {
+                case 1:
+                    format = ImageFormat::r32f;
+                    break;
+                case 2:
+                    format = ImageFormat::rg32f;
+                    break;
+                case 4:
+                    format = ImageFormat::rgba32f;
+                    break;
+                }
+                break;
             }
         }
     }