Differential D2586 Diff 8509 intern/cycles/subd/subd_patch.h

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	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.			* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and			* See the License for the specific language governing permissions and
	* limitations under the License.			* limitations under the License.
	*/			*/

	#ifndef __SUBD_PATCH_H__			#ifndef __SUBD_PATCH_H__
	#define __SUBD_PATCH_H__			#define __SUBD_PATCH_H__

	#include "util_boundbox.h"			#include "util/util_boundbox.h"
	#include "util_types.h"			#include "util/util_types.h"

	CCL_NAMESPACE_BEGIN			CCL_NAMESPACE_BEGIN

	class Patch {			class Patch {
	public:			public:
	virtual ~Patch() {}			virtual ~Patch() {}
	virtual void eval(float3 P, float3 dPdu, float3 dPdv, float3 N, float u, float v) = 0;			virtual void eval(float3 P, float3 dPdu, float3 dPdv, float3 N, float u, float v) = 0;
	virtual BoundBox bound() = 0;			virtual BoundBox bound() = 0;
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