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-rw-r--r--doc/CNN_TEST_TOOL.md7
-rw-r--r--doc/CNN_V2.md8
2 files changed, 11 insertions, 4 deletions
diff --git a/doc/CNN_TEST_TOOL.md b/doc/CNN_TEST_TOOL.md
index ee0d9c5..82d5799 100644
--- a/doc/CNN_TEST_TOOL.md
+++ b/doc/CNN_TEST_TOOL.md
@@ -176,11 +176,12 @@ Compare output.png with training/target_X/img_000.png
**CNN v1:** Builds and runs, produces incorrect output (all white). Use CNNEffect in demo for visual validation.
-**CNN v2:** ✅ Fully functional. Tested and working.
+**CNN v2:** ⚠️ Partially functional. Readback works but output differs from HTML validation tool.
- Loads binary weights from `workspaces/main/weights/cnn_v2_weights.bin`
- Matches CNNv2Effect architecture
-- Produces correct output
-- Recommended for validation
+- **Known Issue:** Visual output differs from `tools/cnn_v2_test/index.html` despite matching shader code
+- Root cause under investigation (weight indexing? texture sampling? activation clamping?)
+- Use HTML tool (`tools/cnn_v2_test/index.html`) for accurate validation
---
diff --git a/doc/CNN_V2.md b/doc/CNN_V2.md
index c827187..577cf9e 100644
--- a/doc/CNN_V2.md
+++ b/doc/CNN_V2.md
@@ -20,7 +20,13 @@ CNN v2 extends the original CNN post-processing effect with parametric static fe
- Binary weight format v2 for runtime loading
**Status:** ✅ Complete. Training pipeline functional, validation tools ready, mip-level support integrated.
-**TODO:** 8-bit quantization with QAT for 2× size reduction (~1.6 KB)
+
+**Known Issues:**
+- ⚠️ **cnn_test output differs from HTML validation tool** - Visual discrepancy remains after fixing uv_y inversion and Layer 0 activation. Root cause under investigation. Both tools should produce identical output given same weights/input.
+
+**TODO:**
+- 8-bit quantization with QAT for 2× size reduction (~1.6 KB)
+- Debug cnn_test vs HTML tool output difference
---