Fix T96132: Cycles RGB/Vector/Float Curve shaders ignore extrapolation setting

Differential Revision: https://developer.blender.org/D14393

1 files changed, 3 insertions, 1 deletions

diff --git a/intern/cycles/kernel/osl/shaders/node_float_curve.osl b/intern/cycles/kernel/osl/shaders/node_float_curve.osl
index 265a21bd4aa..70de1217877 100644
--- a/intern/cycles/kernel/osl/shaders/node_float_curve.osl
+++ b/intern/cycles/kernel/osl/shaders/node_float_curve.osl
@@ -7,13 +7,15 @@
 shader node_float_curve(float ramp[] = {0.0},
                         float min_x = 0.0,
                         float max_x = 1.0,
+                        int extrapolate = 1,
+
                         float ValueIn = 0.0,
                         float Factor = 0.0,
                         output float ValueOut = 0.0)
 {
   float c = (ValueIn - min_x) / (max_x - min_x);
 
-  ValueOut = rgb_ramp_lookup(ramp, c, 1, 1);
+  ValueOut = rgb_ramp_lookup(ramp, c, 1, extrapolate);
 
   ValueOut = mix(ValueIn, ValueOut, Factor);
 }