virtual bool Start()
{
CInputTask::GetPtr()->AddInputEventListener(this);
CCameraTask::GetPtr()->SetPosition(CVector(0, 0, 2));
m_nPolygonMode = GL_FILL;
m_bHDR = true;
m_fExposure = 1.0f;
// ATI doesn't support rectangular textures in GLSL
m_bHDRSquare = !CVideoTask::GetPtr()->IsNVIDIA();
if(CVideoTask::GetPtr()->IsNVIDIA())
{
m_fb.Init(CVideoTask::GetPtr()->GetWidth(), CVideoTask::GetPtr()->GetHeight(), GL_FLOAT_RGBA16_NV);
if(m_fb.IsValid())
m_shHDR.Init("shaders/HDRVert.glsl", "shaders/HDRRectFrag.glsl");
}
else if(CVideoTask::GetPtr()->IsATI())
{
m_fb.Init(1024, 1024, GL_RGBA_FLOAT16_ATI);
if(m_fb.IsValid())
m_shHDR.Init("shaders/HDRVert.glsl", "shaders/HDRSquareFrag.glsl");
}
else
{
m_fb.Init(1024, 1024, GL_RGBA16F_ARB);
if(m_fb.IsValid())
m_shHDR.Init("shaders/HDRVert.glsl", "shaders/HDRSquareFrag.glsl");
}
return true;
}
virtual bool Start()
{
CInputTask::GetPtr()->AddInputEventListener(this);
CCameraTask::GetPtr()->SetPosition(CVector(0, 0, 25));
CCameraTask::GetPtr()->SetThrust(1.0f);
m_nPolygonMode = GL_FILL;
m_vLight = CVector(1000, 1000, 1000);
m_vLightDirection = m_vLight / m_vLight.Magnitude();
m_nSamples = 2; // Number of sample rays to use in integral equation
m_Kr = 0.0025f; // Rayleigh scattering constant
m_Kr4PI = m_Kr*4.0f*PI;
m_Km = 0.0015f; // Mie scattering constant
m_Km4PI = m_Km*4.0f*PI;
m_ESun = 15.0f; // Sun brightness constant
m_g = -0.95f; // The Mie phase asymmetry factor
m_fInnerRadius = 10.0f;
m_fOuterRadius = 10.25f;
m_fScale = 1 / (m_fOuterRadius - m_fInnerRadius);
m_fWavelength[0] = 0.650f; // 650 nm for red
m_fWavelength[1] = 0.570f; // 570 nm for green
m_fWavelength[2] = 0.475f; // 475 nm for blue
m_fWavelength4[0] = powf(m_fWavelength[0], 4.0f);
m_fWavelength4[1] = powf(m_fWavelength[1], 4.0f);
m_fWavelength4[2] = powf(m_fWavelength[2], 4.0f);
m_fRayleighScaleDepth = 0.25f;
m_fMieScaleDepth = 0.1f;
m_pbOpticalDepth.MakeOpticalDepthBuffer(m_fInnerRadius, m_fOuterRadius, m_fRayleighScaleDepth, m_fMieScaleDepth);
m_tOpticalDepth.Init(&m_pbOpticalDepth);
m_shSkyFromSpace.Init("shaders/SkyFromSpaceVert.glsl", "shaders/SkyFromSpaceFrag.glsl");
m_shSkyFromAtmosphere.Init("shaders/SkyFromAtmosphereVert.glsl", "shaders/SkyFromAtmosphereFrag.glsl");
m_shGroundFromSpace.Init("shaders/GroundFromSpaceVert.glsl", "shaders/GroundFromSpaceFrag.glsl");
m_shGroundFromAtmosphere.Init("shaders/GroundFromAtmosphereVert.glsl", "shaders/GroundFromAtmosphereFrag.glsl");
m_fExposure = 2.0f;
m_fb.Init(800, 600, GL_RGBA16F_ARB);
//m_fb.Init(800, 600, GL_RGBA8);
m_shHDR.Init("shaders/HDRVert.glsl", "shaders/HDRFrag.glsl");
m_bHDR = true;
return true;
}
