Sergey Sharybin
2339a84443
velocity is measured in pixels per frame. It is basically a coordinate difference of track coordinate at current frame and previous one (no future prediction happens). It's not really most intuitive place for such a things, but historically the node was called this way.. Track velocity could be used to face effects like motion blur bu piping it to the vector blur node. Reviewers: campbellbarton Reviewed By: campbellbarton Subscribers: hype, sebastian_k Differential Revision: https://developer.blender.org/D1591
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/*
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* Copyright 2012, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor:
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* Jeroen Bakker
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* Monique Dewanchand
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* Sergey Sharybin
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*/
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#ifndef _COM_TrackPositionOperation_h
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#define _COM_TrackPositionOperation_h
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#include <string.h>
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#include "COM_NodeOperation.h"
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#include "DNA_movieclip_types.h"
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#include "DNA_tracking_types.h"
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#include "BLI_listbase.h"
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#include "BLI_string.h"
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/**
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* Class with implementation of green screen gradient rasterization
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*/
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class TrackPositionOperation : public NodeOperation {
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protected:
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MovieClip *m_movieClip;
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int m_framenumber;
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char m_trackingObjectName[64];
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char m_trackName[64];
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int m_axis;
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int m_position;
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int m_relativeFrame;
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bool m_speed_output;
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int m_width, m_height;
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float m_markerPos[2];
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float m_relativePos[2];
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/**
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* Determine the output resolution. The resolution is retrieved from the Renderer
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*/
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void determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2]);
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public:
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TrackPositionOperation();
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void setMovieClip(MovieClip *clip) {this->m_movieClip = clip;}
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void setTrackingObject(char *object) { BLI_strncpy(this->m_trackingObjectName, object, sizeof(this->m_trackingObjectName)); }
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void setTrackName(char *track) { BLI_strncpy(this->m_trackName, track, sizeof(this->m_trackName)); }
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void setFramenumber(int framenumber) {this->m_framenumber = framenumber;}
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void setAxis(int value) {this->m_axis = value;}
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void setPosition(int value) {this->m_position = value;}
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void setRelativeFrame(int value) {this->m_relativeFrame = value;}
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void setSpeedOutput(bool speed_output) {this->m_speed_output = speed_output;};
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void initExecution();
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void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);
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bool isSetOperation() const { return true; }
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};
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#endif
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