64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
/*
|
|
* Copyright 2011-2013 Blender Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef __SUBD_PATCH_H__
|
|
#define __SUBD_PATCH_H__
|
|
|
|
#include "util/util_boundbox.h"
|
|
#include "util/util_types.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
class Patch {
|
|
public:
|
|
Patch() : patch_index(0), shader(0), from_ngon(false)
|
|
{
|
|
}
|
|
|
|
virtual ~Patch() = default;
|
|
|
|
virtual void eval(float3 *P, float3 *dPdu, float3 *dPdv, float3 *N, float u, float v) = 0;
|
|
|
|
int patch_index;
|
|
int shader;
|
|
bool from_ngon;
|
|
};
|
|
|
|
/* Linear Quad Patch */
|
|
|
|
class LinearQuadPatch : public Patch {
|
|
public:
|
|
float3 hull[4];
|
|
float3 normals[4];
|
|
|
|
void eval(float3 *P, float3 *dPdu, float3 *dPdv, float3 *N, float u, float v);
|
|
BoundBox bound();
|
|
};
|
|
|
|
/* Bicubic Patch */
|
|
|
|
class BicubicPatch : public Patch {
|
|
public:
|
|
float3 hull[16];
|
|
|
|
void eval(float3 *P, float3 *dPdu, float3 *dPdv, float3 *N, float u, float v);
|
|
BoundBox bound();
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif /* __SUBD_PATCH_H__ */
|