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-rw-r--r--src/glsl/builtins/110/faceforward37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/glsl/builtins/110/faceforward b/src/glsl/builtins/110/faceforward
new file mode 100644
index 00000000000..d1703972388
--- /dev/null
+++ b/src/glsl/builtins/110/faceforward
@@ -0,0 +1,37 @@
+((function faceforward
+ (signature float
+ (parameters
+ (declare (in) float N)
+ (declare (in) float I)
+ (declare (in) float Nref))
+ ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
+ ((return (var_ref N)))
+ ((return (expression float neg (var_ref N)))))))
+
+ (signature vec2
+ (parameters
+ (declare (in) vec2 N)
+ (declare (in) vec2 I)
+ (declare (in) vec2 Nref))
+ ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
+ ((return (var_ref N)))
+ ((return (expression vec2 neg (var_ref N)))))))
+
+ (signature vec3
+ (parameters
+ (declare (in) vec3 N)
+ (declare (in) vec3 I)
+ (declare (in) vec3 Nref))
+ ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
+ ((return (var_ref N)))
+ ((return (expression vec3 neg (var_ref N)))))))
+
+ (signature vec4
+ (parameters
+ (declare (in) vec4 N)
+ (declare (in) vec4 I)
+ (declare (in) vec4 Nref))
+ ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
+ ((return (var_ref N)))
+ ((return (expression vec4 neg (var_ref N)))))))
+))