fix bug where the unclamped value is being sent into the PQ encoding …

…function and HLG encoding instead of using the clamped value defined on the above line
xuzhaozheng · Jul 24, 2024 · 4457bb2 · 4457bb2
1 parent 3c2bd52
commit 4457bb2
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/Lib.Academy.DisplayEncoding.ctl b/lib/Lib.Academy.DisplayEncoding.ctl
@@ -410,10 +410,10 @@ float[3] eotf_inv( float rgb_linear[3],
         return pow_f3( rgb_clamped, 1/2.6);
     } else if (eotf_enum == 4) {        // ST. 2084
         float rgb_clamped[3] = clamp_f3( rgb_linear, 0.0, referenceLuminance);
-        return Y_to_ST2084_f3( mult_f_f3( referenceLuminance, rgb_linear) );
+        return Y_to_ST2084_f3( mult_f_f3( referenceLuminance, rgb_clamped) );
     } else if (eotf_enum == 5) {        // HLG
         float rgb_clamped[3] = clamp_f3( rgb_linear, 0.0, referenceLuminance);
-        float PQ[3] = Y_to_ST2084_f3( mult_f_f3( referenceLuminance, rgb_linear) );
+        float PQ[3] = Y_to_ST2084_f3( mult_f_f3( referenceLuminance, rgb_clamped) );
         return ST2084_to_HLG_1000nits_f3( PQ );
     } else {        // display linear
         return rgb_linear;