feat: Add seamless bump mapping with procedural noise

- Replaced white noise with smooth value-like noise.
- Implemented periodic texture generation (seam blending).
- Integrated bump mapping into Renderer3D using finite difference of displaced SDF.
- Updated test_3d_render with noise texture and multiple SDF shapes (Box, Sphere, Torus).

1 files changed, 6 insertions, 5 deletions

diff --git a/src/gpu/gpu.h b/src/gpu/gpu.h
index b71e144..9ed1913 100644
--- a/src/gpu/gpu.h
+++ b/src/gpu/gpu.h
@@ -111,12 +111,13 @@ struct ResourceBinding {
 };
 
 // Cross-platform helper for color attachment initialization
-inline void gpu_init_color_attachment(WGPURenderPassColorAttachment& attachment, WGPUTextureView view) {
-    attachment.view = view;
-    attachment.loadOp = WGPULoadOp_Clear;
-    attachment.storeOp = WGPUStoreOp_Store;
+inline void gpu_init_color_attachment(WGPURenderPassColorAttachment& attachment,
+                                      WGPUTextureView view) {
+  attachment.view = view;
+  attachment.loadOp = WGPULoadOp_Clear;
+  attachment.storeOp = WGPUStoreOp_Store;
 #if !defined(DEMO_CROSS_COMPILE_WIN32)
-    attachment.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
+  attachment.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
 #endif
 }