Differential D572 Diff 1894 intern/cycles/kernel/shaders/node_glossy_bsdf.osl

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	* limitations under the License			* limitations under the License
	*/			*/

	#include "stdosl.h"			#include "stdosl.h"
	#include "node_fresnel.h"			#include "node_fresnel.h"

	shader node_glossy_bsdf(			shader node_glossy_bsdf(
	color Color = 0.8,			color Color = 0.8,
	string distribution = "Beckmann",			string distribution = "GGX",
	float Roughness = 0.2,			float Roughness = 0.2,
	normal Normal = N,			normal Normal = N,
	output closure color BSDF = 0)			output closure color BSDF = 0)
	{			{
	if (distribution == "Sharp")			if (distribution == "Sharp")
	BSDF = Color * reflection(Normal);			BSDF = Color * reflection(Normal);
	else if (distribution == "Beckmann")			else if (distribution == "Beckmann")
	BSDF = Color * microfacet_beckmann(Normal, Roughness);			BSDF = Color * microfacet_beckmann(Normal, Roughness);
	else if (distribution == "GGX")			else if (distribution == "GGX")
	BSDF = Color * microfacet_ggx(Normal, Roughness);			BSDF = Color * microfacet_ggx(Normal, Roughness);
				else
				BSDF = Color * ashikhmin_shirley(Normal, vector(0, 0, 0), Roughness, Roughness);

	}			}