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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 "GpuFluids2D.h"
WM5_WINDOW_APPLICATION(GpuFluids2D);
//----------------------------------------------------------------------------
GpuFluids2D::GpuFluids2D ()
:
WindowApplication3("SamplePhysics/GpuFluids2D",0, 0, 512, 512,
Float4(0.9f, 0.9f, 0.9f, 1.0f)),
mTextColor(1.0f, 0.0f, 0.0f, 1.0f)
{
mSmoke = 0;
mDrawColored = false;
mDrawVortices = true;
}
//----------------------------------------------------------------------------
bool GpuFluids2D::OnInitialize ()
{
if (!WindowApplication3::OnInitialize())
{
return false;
}
float x0 = 0.0f;
float y0 = 0.0f;
float x1 = 1.0f;
float y1 = 1.0f;
float dt = 0.001f;
float denViscosity = 0.0001f;
float velViscosity = 0.0001f;
int imax = 255;
int jmax = 255;
int numGaussSeidelIterations = 32;
int numVortices = 64;
mSmoke = new0 Smoke2D(mRenderer, x0, y0, x1, y1, dt, denViscosity,
velViscosity, imax, jmax, numGaussSeidelIterations, numVortices);
return true;
}
//----------------------------------------------------------------------------
void GpuFluids2D::OnTerminate ()
{
delete0(mSmoke);
WindowApplication3::OnTerminate();
}
//----------------------------------------------------------------------------
void GpuFluids2D::OnPreidle ()
{
mSmoke->CreateScene();
mSmoke->Initialize();
mSmoke->UseVortexOverlay(mDrawVortices);
}
//----------------------------------------------------------------------------
void GpuFluids2D::OnIdle ()
{
MeasureTime();
if (mRenderer->PreDraw())
{
mSmoke->DoSimulationStep();
DrawFrameRate(8, GetHeight()-8, mTextColor);
mRenderer->PostDraw();
mRenderer->DisplayColorBuffer();
}
UpdateFrameCount();
}
//----------------------------------------------------------------------------
bool GpuFluids2D::OnKeyDown (unsigned char key, int x, int y)
{
if (WindowApplication3::OnKeyDown(key, x, y))
{
return true;
}
switch (key)
{
case '0':
mSmoke->Initialize();
return true;
case 'c':
case 'C':
mDrawColored = !mDrawColored;
mSmoke->UseColor(mDrawColored);
return true;
case 'v':
case 'V':
mDrawVortices = !mDrawVortices;
mSmoke->UseVortexOverlay(mDrawVortices);
return true;
case '+':
case '=':
{
int numActive = mSmoke->GetNumActiveVortices();
if (numActive < mSmoke->GetNumVortices())
{
mSmoke->SetNumActiveVortices(numActive + 1);
}
return true;
}
case '-':
case '_':
{
int numActive = mSmoke->GetNumActiveVortices();
if (numActive > 0)
{
mSmoke->SetNumActiveVortices(numActive - 1);
}
return true;
}
case 'g':
{
float gravity = mSmoke->GetGravity() - 0.1f;
if (gravity < 0.0f)
{
gravity = 0.0f;
}
mSmoke->SetGravity(gravity);
return true;
}
case 'G':
mSmoke->SetGravity(mSmoke->GetGravity() + 0.1f);
return true;
}
return false;
}
//----------------------------------------------------------------------------
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