/*--------------------------
set rendering target data
C.Wang 0522, 2006
---------------------------*/
void FuCShadowModify::SetRenderTarget(int w, float *bgColor)
{
FnScene scene;
FnWorld gw;
FnViewport vp;
char shadowName[256];
scene.Object(mHost);
gw.Object(scene.GetWorld());
gw.DeleteMaterial(mRenderTarget);
gw.DeleteViewport(mViewport);
// create the viewport with the associated size
mViewport = gw.CreateViewport(0, 0, w, w);
// create the render target material
mRenderTarget = gw.CreateMaterial(NULL, NULL, NULL, 1.0f, NULL);
// generate a unique shadow texture name
sprintf(shadowName, "shadow%d", mRenderTarget);
FnMaterial mat;
mat.Object(mRenderTarget);
mat.AddRenderTargetTexture(0, 0, shadowName, TEXTURE_32, mViewport);
mat.SetTextureAddressMode(0, CLAMP_TEXTURE);
// set render target
vp.Object(mViewport);
vp.SetRenderTarget(mRenderTarget, 0, 0, 0);
vp.SetBackgroundColor(bgColor[0], bgColor[1], bgColor[2]);
}
/*-------------------------------
create the material for shadow
C.Wang 0522, 2006
--------------------------------*/
void FuCShadowModify::CreateShadowMaterial(float *color)
{
FnWorld gw;
FnScene scene;
scene.Object(mHost);
gw.Object(scene.GetWorld());
if (mShadowMat != FAILED_MATERIAL_ID) {
gw.DeleteMaterial(mShadowMat);
}
// create the material
float blackColor[3];
blackColor[0] = blackColor[1] = blackColor[2] = 0.0f;
mShadowMat = gw.CreateMaterial(blackColor, blackColor, blackColor, 1.0f, color);
}
/*------------------------------------
destructor of classic shadow object
C.Wang 0522, 2006
-------------------------------------*/
FuCShadowModify::~FuCShadowModify()
{
// delete the associated camera
FnScene scene;
FnWorld gw;
scene.Object(mHost);
gw.Object(scene.GetWorld());
gw.DeleteViewport(mViewport);
mViewport = FAILED_ID;
gw.DeleteMaterial(mShadowMat);
mShadowMat = FAILED_MATERIAL_ID;
gw.DeleteMaterial(mRenderTarget);
mRenderTarget = FAILED_MATERIAL_ID;
scene.DeleteCamera( m_lightCam.Object() );
m_lightCam.Object( FAILED_ID );
scene.DeleteObject(mSeed);
mSeed = FAILED_ID;
}
/*----------------------------------
display the shadow on the terrain
C.Wang 0522, 2006
-----------------------------------*/
void FuCShadowModify::Display()
{
TPROFILE("Shadow Display");
if ( m_fyActor.Object() == FAILED_ID )
return;
FnObject model;
model.Object(mSeed);
if (!model.GetVisibility())
return;
WORLDid wID;
FnTriangle tT;
FnScene scene;
FnTerrain terrain;
int vLen , texLen = 2, tri[3];
float M[16], *G, vLC[3];
// get all neighboring triangles
//nList = terrain.GetAllVertexNeighborTriangles(iOne, list, 64);
//if (nList <= 0) return;
// get the matrix to character's base coordinate
m_lightCam.SetWorldPosition( m_actorPos );
G = m_lightCam.GetMatrix(TRUE);
FyInverseM16(G, M);
tT.Object( m_terrain.Object() , 0);
scene.Object(mHost);
wID = scene.GetWorld();
// reset all rendering states
FyResetRenderStates(wID);
FySetD3DRenderState(wID, D3DRS_LIGHTING, FALSE);
FySetD3DRenderState(wID, D3DRS_FOGENABLE, FALSE);
FySetD3DRenderState(wID, D3DRS_ZWRITEENABLE, FALSE);
// set current material
FySetCurrentMaterial(wID, mRenderTarget, FALSE, 1.0f);
FySetD3DRenderState(wID, D3DRS_ALPHABLENDENABLE, TRUE);
FySetD3DRenderState(wID, D3DRS_ALPHATESTENABLE, FALSE);
FySetD3DRenderState(wID, D3DRS_SRCBLEND, D3DBLEND_ZERO);
FySetD3DRenderState(wID, D3DRS_DESTBLEND, D3DBLEND_SRCCOLOR);
LPDIRECT3DDEVICE9 dev = FyGetD3DDevice(wID);
float pos[16];
FuLitedVertex v[3];
// display these triangles
vLen = 6;
v[0].diffuse = D3DCOLOR_RGBA(255, 255, 255, 255);
v[1].diffuse = D3DCOLOR_RGBA(255, 255, 255, 255);
v[2].diffuse = D3DCOLOR_RGBA(255, 255, 255, 255);
int nTri = m_triIDVec.size();
for ( int i = 0; i < nTri ; i++)
{
// get the triangle vertices
tT.GetTopology( m_triIDVec[i] , tri);
for ( int j = 0; j < 3; ++j )
{
tT.GetVertex(tri[2-j], pos);
v[j].pos[0] = pos[0];
v[j].pos[1] = pos[1];
v[j].pos[2] = pos[2] + mShadowHeightOffset;
// calculate the texture coordinate
FUTransformVertexWithM16_Simple(vLC, v[j].pos, M);
CalculateShadowUV(vLC, v[j].uv);
}
FyDrawTriangles(wID, XYZ_DIFFUSE, 3 , 1 , &texLen, (float *) &v[0] );
}
}