Hi, Is there a way to simulate radiosity in Direct3D? I''m trying to simulate a sun light (static) using a directional light, but the effect is not very realistic... Has anyone a good hint to simulate the sun light? Thanks, Adriano.

http://www.wordware.com/files/dx9/

advanced 3d game programming

chapter 9 pages 401

up here its the direct link to sources code.

the drawstring function in cGraphicLayer dont work replace with this

void cGraphic::DrawTextString(int x, int y, DWORD color, const char* str)
{
HRESULT r = 0;

if( !m_pBackSurf )
return;

// Get a handle for the font to use
HFONT hFont = (HFONT)GetStockObject( SYSTEM_FONT );

LPD3DXFONT pFont = 0;
// Create the D3DX Font
r = D3DXCreateFont( m_pD3DDevice,
14,
0,
FW_BOLD,
0,
FALSE,
DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS,
DEFAULT_QUALITY,
DEFAULT_PITCH | FF_DONTCARE,
_T("Arial"),
&pFont
);
if( FAILED( r ) )
return;

// Rectangle where the text will be located
RECT TextRect = { x, y, 0, 0 };


// Calculate the rectangle the text will occupy
pFont->DrawText(NULL, str, -1, &TextRect, DT_CALCRECT, 0 );

// Output the text, left aligned
pFont->DrawText(NULL, str, -1, &TextRect, DT_LEFT, color );


// Release the font
pFont->Release();
}