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SOP/SOP_CustomBrush.h
/*
* Copyright (c) 2018
* Side Effects Software Inc. All rights reserved.
*
* Redistribution and use of Houdini Development Kit samples in source and
* binary forms, with or without modification, are permitted provided that the
* following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. The name of Side Effects Software may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY SIDE EFFECTS SOFTWARE `AS IS' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL SIDE EFFECTS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*----------------------------------------------------------------------------
*/
#ifndef __SOP_CustomBrush_h__
#define __SOP_CustomBrush_h__
#include <SOP/SOP_Node.h>
#include <UT/UT_Array.h>
namespace HDK_Sample {
enum
{
// Group parameters
};
// structure to describe the paint applied to a particular point
// the colors are assumed to be pre-multiplied by the alpha
struct SOP_CustomBrushData
{
};
class SOP_CustomBrush : public SOP_Node
{
public:
// our constructor
SOP_CustomBrush(OP_Network *net, const char *name, OP_Operator *op);
// our destructor
virtual ~SOP_CustomBrush();
static OP_Node *myConstructor(OP_Network*, const char *, OP_Operator *);
virtual OP_ERROR cookInputGroups(OP_Context &context, int alone = 0);
// used by undo/redo to update the paint
protected:
// Method to cook geometry for the SOP
virtual OP_ERROR cookMySop(OP_Context &context);
// save the SOP's data (including the applied paint)
virtual OP_ERROR save(std::ostream &os, const OP_SaveFlags &flags,
const char *path_prefix,
const UT_String &name_override = UT_String());
// load the SOP's data (including the applied paint)
virtual bool load(UT_IStream &is, const char *extension,
const char *path);
// callback used by the "Clear All" parameter
static int clearAllStatic(void *op, int, fpreal time, const PRM_Template *);
void clearAll();
private:
UT_Vector3 evalVector3(int idx, fpreal t)
{
return UT_Vector3(evalFloat(idx, 0, t),
evalFloat(idx, 1, t),
evalFloat(idx, 2, t));
}
UT_Vector3 getOrigin(fpreal t)
{ return evalVector3(SOP_CUSTOMBRUSH_ORIGIN_IDX, t); }
UT_Vector3 getDirection(fpreal t)
{ return evalVector3(SOP_CUSTOMBRUSH_DIRECTION_IDX, t); }
fpreal getRadius(fpreal t)
UT_Vector3 getBrushColor(fpreal t)
{ return evalVector3(SOP_CUSTOMBRUSH_COLOR_IDX, t); }
fpreal getBrushAlpha(fpreal t)
int getOperation(fpreal t)
int getEvent(fpreal t)
const GA_PointGroup *myGroup;
// expected number of points in the input
GA_Size myNumPts;
// contains previous expected number of points in the input for undos
GA_Size myOldNumPts;
// stores applied paint values
// contains previous paint values for undos
};
} // End HDK_Sample namespace
#endif