fix(3d): Unify all objects to SDF path for consistent shadows

- Updated ObjectData to include inv_model for reliable world-to-local mapping.
- Enabled SDF raymarching path for all objects in test_3d_render (floor is now a large SDF BOX).
- Implemented robust normal calculation using SDF gradient for all objects.
- Standardized lighting (light_dir = 1,1,1) and diffuse+ambient model.
- Refined calc_shadow with instance-based skip_idx and robust bias.
- Fixed non-uniform scale handling in shader by extracting min scale from model matrix.

1 files changed, 6 insertions, 13 deletions

diff --git a/src/generated/timeline.cc b/src/generated/timeline.cc
index 9669b7b..376624b 100644
--- a/src/generated/timeline.cc
+++ b/src/generated/timeline.cc
@@ -2,25 +2,18 @@
 #include "gpu/demo_effects.h"
 #include "gpu/effect.h"
 
-void LoadTimeline(MainSequence& main_seq, WGPUDevice device, WGPUQueue queue,
-                  WGPUTextureFormat format) {
+void LoadTimeline(MainSequence& main_seq, WGPUDevice device, WGPUQueue queue, WGPUTextureFormat format) {
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format),
-                    0.0f, 60.0f, 0);
-    seq->add_effect(std::make_shared<ParticlesEffect>(device, queue, format),
-                    0.0f, 60.0f, 1);
-    seq->add_effect(std::make_shared<Hybrid3DEffect>(device, queue, format),
-                    0.0f, 60.0f, 2);
+    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.0f, 60.0f, 0);
+    seq->add_effect(std::make_shared<ParticlesEffect>(device, queue, format), 0.0f, 60.0f, 1);
+    seq->add_effect(std::make_shared<Hybrid3DEffect>(device, queue, format), 0.0f, 60.0f, 2);
     main_seq.add_sequence(seq, 0.0f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format),
-                    0.0f, 60.0f, 0);
-    seq->add_effect(
-        std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.0f,
-        60.0f, 1);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.0f, 60.0f, 0);
+    seq->add_effect(std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.0f, 60.0f, 1);
     main_seq.add_sequence(seq, 0.0f, 10);
   }
 }