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-rw-r--r--src/glsl/builtins/ir/refract.ir102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/glsl/builtins/ir/refract.ir b/src/glsl/builtins/ir/refract.ir
new file mode 100644
index 00000000000..60899f01cec
--- /dev/null
+++ b/src/glsl/builtins/ir/refract.ir
@@ -0,0 +1,102 @@
+((function refract
+ (signature float
+ (parameters
+ (declare (in) float i)
+ (declare (in) float n)
+ (declare (in) float eta))
+ ((declare () float k)
+ (assign (x) (var_ref k)
+ (expression float - (constant float (1.0))
+ (expression float * (var_ref eta)
+ (expression float * (var_ref eta)
+ (expression float - (constant float (1.0))
+ (expression float *
+ (expression float * (var_ref n) (var_ref i))
+ (expression float * (var_ref n) (var_ref i))))))))
+ (if (expression bool < (var_ref k) (constant float (0.0)))
+ ((return (constant float (0.0))))
+ ((return (expression float -
+ (expression float * (var_ref eta) (var_ref i))
+ (expression float *
+ (expression float +
+ (expression float * (var_ref eta)
+ (expression float * (var_ref n) (var_ref i)))
+ (expression float sqrt (var_ref k)))
+ (var_ref n))))))))
+
+ (signature vec2
+ (parameters
+ (declare (in) vec2 i)
+ (declare (in) vec2 n)
+ (declare (in) float eta))
+ ((declare () float k)
+ (assign (x) (var_ref k)
+ (expression float - (constant float (1.0))
+ (expression float * (var_ref eta)
+ (expression float * (var_ref eta)
+ (expression float - (constant float (1.0))
+ (expression float *
+ (expression float dot (var_ref n) (var_ref i))
+ (expression float dot (var_ref n) (var_ref i))))))))
+ (if (expression bool < (var_ref k) (constant float (0.0)))
+ ((return (constant vec2 (0.0 0.0))))
+ ((return (expression vec2 -
+ (expression vec2 * (var_ref eta) (var_ref i))
+ (expression vec2 *
+ (expression float +
+ (expression float * (var_ref eta)
+ (expression float dot (var_ref n) (var_ref i)))
+ (expression float sqrt (var_ref k)))
+ (var_ref n))))))))
+
+ (signature vec3
+ (parameters
+ (declare (in) vec3 i)
+ (declare (in) vec3 n)
+ (declare (in) float eta))
+ ((declare () float k)
+ (assign (x) (var_ref k)
+ (expression float - (constant float (1.0))
+ (expression float * (var_ref eta)
+ (expression float * (var_ref eta)
+ (expression float - (constant float (1.0))
+ (expression float *
+ (expression float dot (var_ref n) (var_ref i))
+ (expression float dot (var_ref n) (var_ref i))))))))
+ (if (expression bool < (var_ref k) (constant float (0.0)))
+ ((return (constant vec3 (0.0 0.0 0.0))))
+ ((return (expression vec3 -
+ (expression vec3 * (var_ref eta) (var_ref i))
+ (expression vec3 *
+ (expression float +
+ (expression float * (var_ref eta)
+ (expression float dot (var_ref n) (var_ref i)))
+ (expression float sqrt (var_ref k)))
+ (var_ref n))))))))
+
+ (signature vec4
+ (parameters
+ (declare (in) vec4 i)
+ (declare (in) vec4 n)
+ (declare (in) float eta))
+ ((declare () float k)
+ (assign (x) (var_ref k)
+ (expression float - (constant float (1.0))
+ (expression float * (var_ref eta)
+ (expression float * (var_ref eta)
+ (expression float - (constant float (1.0))
+ (expression float *
+ (expression float dot (var_ref n) (var_ref i))
+ (expression float dot (var_ref n) (var_ref i))))))))
+ (if (expression bool < (var_ref k) (constant float (0.0)))
+ ((return (constant vec4 (0.0 0.0 0.0 0.0))))
+ ((return (expression vec4 -
+ (expression vec4 * (var_ref eta) (var_ref i))
+ (expression vec4 *
+ (expression float +
+ (expression float * (var_ref eta)
+ (expression float dot (var_ref n) (var_ref i)))
+ (expression float sqrt (var_ref k)))
+ (var_ref n))))))))
+
+))