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-rw-r--r--tests/autodiff/material/IBSDF.slang7
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/autodiff/material/IBSDF.slang b/tests/autodiff/material/IBSDF.slang
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+++ b/tests/autodiff/material/IBSDF.slang
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+//TEST_IGNORE_FILE:
+
+interface IBSDF
+{
+ [BackwardDifferentiable]
+ float3 eval(const float3 wi, const float3 wo);
+}