OSL implementation of RGB ramp node.

The sampled color ramp data is passed to OSL as a color array. This has to be done as actual float[3] array though, since the Cycles float3 type actually contains 4 floats, leading to shifting color components in the array.

Additional parameter set functions for arrays have been added to the Cycles OSL interface for this purpose.

1 files changed, 9 insertions, 0 deletions

diff --git a/intern/cycles/render/osl.h b/intern/cycles/render/osl.h
index 329cf9a4828..2da951ab3d2 100644
--- a/intern/cycles/render/osl.h
+++ b/intern/cycles/render/osl.h
@@ -79,6 +79,15 @@ public:
 	void parameter(const char *name, ustring str);
 	void parameter(const char *name, const Transform& tfm);
 
+	void parameter_array(const char *name, const float f[], int arraylen);
+	void parameter_color_array(const char *name, const float f[][3], int arraylen);
+	void parameter_vector_array(const char *name, const float f[][3], int arraylen);
+	void parameter_normal_array(const char *name, const float f[][3], int arraylen);
+	void parameter_point_array(const char *name, const float f[][3], int arraylen);
+	void parameter_array(const char *name, const int f[], int arraylen);
+	void parameter_array(const char *name, const char * const s[], int arraylen);
+	void parameter_array(const char *name, const Transform tfm[], int arraylen);
+
 	ShaderType output_type() { return current_type; }
 
 	bool background;