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-rw-r--r--src/glsl/builtins/110_fs/derivatives73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/glsl/builtins/110_fs/derivatives b/src/glsl/builtins/110_fs/derivatives
new file mode 100644
index 0000000000..b79852ee1f
--- /dev/null
+++ b/src/glsl/builtins/110_fs/derivatives
@@ -0,0 +1,73 @@
+((function dFdx
+ (signature float
+ (parameters
+ (declare (in) float p))
+ ((return (expression float dFdx (var_ref p)))))
+
+ (signature vec2
+ (parameters
+ (declare (in) vec2 p))
+ ((return (expression vec2 dFdx (var_ref p)))))
+
+ (signature vec3
+ (parameters
+ (declare (in) vec3 p))
+ ((return (expression vec3 dFdx (var_ref p)))))
+
+ (signature vec4
+ (parameters
+ (declare (in) vec4 p))
+ ((return (expression vec4 dFdx (var_ref p)))))
+ )
+
+ (function dFdy
+ (signature float
+ (parameters
+ (declare (in) float p))
+ ((return (expression float dFdy (var_ref p)))))
+
+ (signature vec2
+ (parameters
+ (declare (in) vec2 p))
+ ((return (expression vec2 dFdy (var_ref p)))))
+
+ (signature vec3
+ (parameters
+ (declare (in) vec3 p))
+ ((return (expression vec3 dFdy (var_ref p)))))
+
+ (signature vec4
+ (parameters
+ (declare (in) vec4 p))
+ ((return (expression vec4 dFdy (var_ref p)))))
+ )
+
+ (function fwidth
+ (signature float
+ (parameters
+ (declare (in) float p))
+ ((return (expression float +
+ (expression float abs (expression float dFdx (var_ref p)))
+ (expression float abs (expression float dFdy (var_ref p)))))))
+
+ (signature vec2
+ (parameters
+ (declare (in) vec2 p))
+ ((return (expression vec2 +
+ (expression vec2 abs (expression vec2 dFdx (var_ref p)))
+ (expression vec2 abs (expression vec2 dFdy (var_ref p)))))))
+
+ (signature vec3
+ (parameters
+ (declare (in) vec3 p))
+ ((return (expression vec3 +
+ (expression vec3 abs (expression vec3 dFdx (var_ref p)))
+ (expression vec3 abs (expression vec3 dFdy (var_ref p)))))))
+
+ (signature vec4
+ (parameters
+ (declare (in) vec4 p))
+ ((return (expression vec4 +
+ (expression vec4 abs (expression vec4 dFdx (var_ref p)))
+ (expression vec4 abs (expression vec4 dFdy (var_ref p)))))))
+))