115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
// Filename: billboardEffect.h
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// Created by: drose (14Mar02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#ifndef BILLBOARDEFFECT_H
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#define BILLBOARDEFFECT_H
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#include "pandabase.h"
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#include "renderEffect.h"
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#include "luse.h"
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#include "nodePath.h"
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////////////////////////////////////////////////////////////////////
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// Class : BillboardEffect
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// Description : Indicates that geometry at this node should
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// automatically rotate to face the camera, or any other
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// arbitrary node.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA_PGRAPH BillboardEffect : public RenderEffect {
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private:
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INLINE BillboardEffect();
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PUBLISHED:
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static CPT(RenderEffect) make(const LVector3f &up_vector,
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bool eye_relative,
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bool axial_rotate,
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float offset,
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const NodePath &look_at,
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const LPoint3f &look_at_point);
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INLINE static CPT(RenderEffect) make_axis();
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INLINE static CPT(RenderEffect) make_point_eye();
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INLINE static CPT(RenderEffect) make_point_world();
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INLINE bool is_off() const;
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INLINE const LVector3f &get_up_vector() const;
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INLINE bool get_eye_relative() const;
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INLINE bool get_axial_rotate() const;
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INLINE float get_offset() const;
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INLINE const NodePath &get_look_at() const;
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INLINE const LPoint3f &get_look_at_point() const;
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public:
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virtual bool safe_to_transform() const;
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virtual CPT(TransformState) prepare_flatten_transform(const TransformState *net_transform) const;
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virtual void output(ostream &out) const;
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virtual bool has_cull_callback() const;
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virtual void cull_callback(CullTraverser *trav, CullTraverserData &data,
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CPT(TransformState) &node_transform,
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CPT(RenderState) &node_state) const;
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virtual bool has_adjust_transform() const;
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virtual void adjust_transform(CPT(TransformState) &net_transform,
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CPT(TransformState) &node_transform,
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PandaNode *node) const;
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protected:
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virtual int compare_to_impl(const RenderEffect *other) const;
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private:
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void compute_billboard(CPT(TransformState) &node_transform,
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const TransformState *net_transform,
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const TransformState *camera_transform) const;
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private:
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bool _off;
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LVector3f _up_vector;
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bool _eye_relative;
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bool _axial_rotate;
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float _offset;
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NodePath _look_at;
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LPoint3f _look_at_point;
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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protected:
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static TypedWritable *make_from_bam(const FactoryParams ¶ms);
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void fillin(DatagramIterator &scan, BamReader *manager);
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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RenderEffect::init_type();
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register_type(_type_handle, "BillboardEffect",
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RenderEffect::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "billboardEffect.I"
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#endif
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