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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#include "Wm5GraphicsPCH.h"
#include "Wm5Light.h"
#include "Wm5Math.h"
using namespace Wm5;
WM5_IMPLEMENT_RTTI(Wm5, Object, Light);
WM5_IMPLEMENT_STREAM(Light);
WM5_IMPLEMENT_FACTORY(Light);
WM5_IMPLEMENT_DEFAULT_NAMES(Object, Light);
//----------------------------------------------------------------------------
Light::Light (Type eType)
:
Ambient(Float4(0.0f, 0.0f, 0.0f, 1.0f)),
Diffuse(Float4(0.0f, 0.0f, 0.0f, 1.0f)),
Specular(Float4(0.0f, 0.0f, 0.0f, 1.0f)),
Constant(1.0f),
Linear(0.0f),
Quadratic(0.0f),
Intensity(1.0f),
Angle(Mathf::PI),
CosAngle(-1.0f),
SinAngle(0.0f),
Exponent(1.0f),
Position(APoint::ORIGIN),
DVector(-AVector::UNIT_Z),
UVector(AVector::UNIT_Y),
RVector(AVector::UNIT_X),
mType(eType)
{
}
//----------------------------------------------------------------------------
Light::~Light ()
{
}
//----------------------------------------------------------------------------
void Light::SetAngle (float angle)
{
assertion(0.0f < angle && angle <= Mathf::PI,
"Angle out of range in SetAngle.\n");
Angle = angle;
CosAngle = Mathf::Cos(angle);
SinAngle = Mathf::Sin(angle);
}
//----------------------------------------------------------------------------
void Light::SetDirection (const AVector& direction)
{
DVector = direction;
AVector::GenerateOrthonormalBasis(UVector, RVector, DVector);
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Streaming support.
//----------------------------------------------------------------------------
Light::Light (LoadConstructor value)
:
Object(value),
Ambient(Float4(0.0f, 0.0f, 0.0f, 1.0f)),
Diffuse(Float4(0.0f, 0.0f, 0.0f, 1.0f)),
Specular(Float4(0.0f, 0.0f, 0.0f, 1.0f)),
Constant(0.0f),
Linear(0.0f),
Quadratic(0.0f),
Intensity(0.0f),
Angle(0.0f),
CosAngle(0.0f),
SinAngle(0.0f),
Exponent(0.0f),
Position(APoint::ORIGIN),
DVector(-AVector::UNIT_Z),
UVector(AVector::UNIT_Y),
RVector(AVector::UNIT_X),
mType(LT_QUANTITY)
{
}
//----------------------------------------------------------------------------
void Light::Load (InStream& source)
{
WM5_BEGIN_DEBUG_STREAM_LOAD(source);
Object::Load(source);
source.ReadEnum(mType);
source.ReadAggregate(Ambient);
source.ReadAggregate(Diffuse);
source.ReadAggregate(Specular);
source.Read(Constant);
source.Read(Linear);
source.Read(Quadratic);
source.Read(Intensity);
source.Read(Angle);
source.Read(CosAngle);
source.Read(SinAngle);
source.Read(Exponent);
source.ReadAggregate(Position);
source.ReadAggregate(DVector);
source.ReadAggregate(UVector);
source.ReadAggregate(RVector);
WM5_END_DEBUG_STREAM_LOAD(Light, source);
}
//----------------------------------------------------------------------------
void Light::Link (InStream& source)
{
Object::Link(source);
}
//----------------------------------------------------------------------------
void Light::PostLink ()
{
Object::PostLink();
}
//----------------------------------------------------------------------------
bool Light::Register (OutStream& target) const
{
return Object::Register(target);
}
//----------------------------------------------------------------------------
void Light::Save (OutStream& target) const
{
WM5_BEGIN_DEBUG_STREAM_SAVE(target);
Object::Save(target);
target.WriteEnum(mType);
target.WriteAggregate(Ambient);
target.WriteAggregate(Diffuse);
target.WriteAggregate(Specular);
target.Write(Constant);
target.Write(Linear);
target.Write(Quadratic);
target.Write(Intensity);
target.Write(Angle);
target.Write(CosAngle);
target.Write(SinAngle);
target.Write(Exponent);
target.WriteAggregate(Position);
target.WriteAggregate(DVector);
target.WriteAggregate(UVector);
target.WriteAggregate(RVector);
WM5_END_DEBUG_STREAM_SAVE(Light, target);
}
//----------------------------------------------------------------------------
int Light::GetStreamingSize () const
{
int size = Object::GetStreamingSize();
size += WM5_ENUMSIZE(mType);
size += sizeof(Ambient);
size += sizeof(Diffuse);
size += sizeof(Specular);
size += sizeof(Constant);
size += sizeof(Linear);
size += sizeof(Quadratic);
size += sizeof(Intensity);
size += sizeof(Angle);
size += sizeof(CosAngle);
size += sizeof(SinAngle);
size += sizeof(Exponent);
size += sizeof(Position);
size += sizeof(DVector);
size += sizeof(UVector);
size += sizeof(RVector);
return size;
}
//----------------------------------------------------------------------------
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