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SOP/SOP_TimeCompare.h
/*
* Copyright (c) 2024
* 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
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*
*----------------------------------------------------------------------------
* TimeCompare SOP
*/
#ifndef __SOP_TimeCompare_h__
#define __SOP_TimeCompare_h__
#include <SOP/SOP_Node.h>
namespace HDK_Sample {
/// Compares a point attribute on the two inputs at different times, storing
/// the difference in a new attribute.
class SOP_TimeCompare : public SOP_Node
{
public:
SOP_TimeCompare(OP_Network *net, const char *name, OP_Operator *op);
~SOP_TimeCompare() override;
static OP_Node *myConstructor(OP_Network*, const char *,
/// This method is created so that it can be called by handles. It only
/// cooks the input group of this SOP. The geometry in this group is
/// the only geometry manipulated by this SOP.
int alone = 0) override;
protected:
/// Method to cook geometry for the SOP
OP_ERROR cookMySop(OP_Context &context) override;
private:
void getGroups(UT_String &str){ evalString(str, "group", 0, 0); }
void ATTRIB(UT_String &str, fpreal t)
{ evalString(str, "attrib", 0, t); }
void RESULTATTRIB(UT_String &str, fpreal t)
{ evalString(str, "resultattrib", 0, t); }
fpreal FRAME(fpreal t)
{ return evalFloat("frame", 0, t); }
/// This is the group of geometry to be manipulated by this SOP and cooked
/// by the method "cookInputGroups".
const GA_PointGroup *myGroup;
};
} // End HDK_Sample namespace
#endif