LTRESULT CLTRenderMgr::UploadPreviousFrameToEffect(LTEffectShader* pEffect, const char* szParam)
{
LTEffectImpl* pEffectImpl = (LTEffectImpl*)pEffect;
if(pEffectImpl && (szParam[0] != '\0'))
{
ID3DXEffect* pD3DEffect = pEffectImpl->GetEffect();
if(pD3DEffect && g_Device.m_pPreviousFrame)
{
if(FAILED(pD3DEffect->SetTexture(szParam, g_Device.m_pPreviousFrame)))
{
return LT_ERROR;
}
else
{
// It worked!
return LT_OK;
}
}
}
return LT_ERROR;
}
static void d3d_DrawSprite(const ViewParams& Params, SpriteInstance *pInstance, SharedTexture *pShared)
{
//the basis up and right vectors
LTVector vBasisRight, vBasisUp, vBasisPos, vBasisForward;
// If it's really close, change the near Z and transform it into clipping space
if(pInstance->m_Flags & FLAG_REALLYCLOSE)
{
//we are in camera space, so up and right are always the standard
vBasisRight.Init(1.0f, 0.0f, 0.0f);
vBasisUp.Init(0.0f, 1.0f, 0.0f);
vBasisForward.Init(0.0f, 0.0f, 1.0f);
vBasisPos.Init(0.0f, 0.0f, 0.0f);
}
else
{
//Otherwise we need to grab the camera's up and right
vBasisRight = Params.m_Right;
vBasisUp = Params.m_Up;
vBasisForward = Params.m_Forward;
vBasisPos = Params.m_Pos;
}
//get the object position
LTVector vPos = pInstance->GetPos();
//find the Z distance
float fZ = (vPos - vBasisPos).Dot(vBasisForward);
//bail if this is too close to even be seen
if(!(pInstance->m_Flags & FLAG_REALLYCLOSE) && (fZ < NEARZ))
return;
if(!d3d_SetTexture(pShared, 0, eFS_SpriteTexMemory))
return;
float fWidth = (float)((RTexture*)pShared->m_pRenderData)->GetBaseWidth();
float fHeight = (float)((RTexture*)pShared->m_pRenderData)->GetBaseHeight();
float fSizeX = fWidth * pInstance->m_Scale.x;
float fSizeY = fHeight * pInstance->m_Scale.y;
if(pInstance->m_Flags & FLAG_GLOWSPRITE)
{
//find the scale factor
float fFactor = (fZ - SPRITE_MINFACTORDIST) / (SPRITE_MAXFACTORDIST - SPRITE_MINFACTORDIST);
fFactor = LTCLAMP(fFactor, 0.0f, 1.0f);
fFactor = SPRITE_MINFACTOR + ((SPRITE_MAXFACTOR-SPRITE_MINFACTOR) * fFactor);
fSizeX *= fFactor;
fSizeY *= fFactor;
}
//find the color of this sprite
RGBColor Color;
d3d_GetSpriteColor(pInstance, &Color);
uint32 nColor = Color.color;
//scale up to be the appropriate half height
LTVector vRight = vBasisRight * fSizeX;
LTVector vUp = vBasisUp * fSizeY;
// Generate our vertices
CSpriteVertex SpriteVerts[4];
SpriteVerts[0].SetupVert(vPos + vUp - vRight, nColor, 0.0f, 0.0f);
SpriteVerts[1].SetupVert(vPos + vUp + vRight, nColor, 1.0f, 0.0f);
SpriteVerts[2].SetupVert(vPos + vRight - vUp, nColor, 1.0f, 1.0f);
SpriteVerts[3].SetupVert(vPos - vRight - vUp, nColor, 0.0f, 1.0f);
if((pInstance->m_Flags & FLAG_SPRITEBIAS) && !(pInstance->m_Flags & FLAG_REALLYCLOSE))
{
//find the bias, up to, but not including the near plane
float fBiasDist = SPRITE_POSITION_ZBIAS;
if((fZ + fBiasDist) < NEARZ)
fBiasDist = NEARZ - fZ;
//now adjust our vectors accordingly so that we can move it forward
//but have it be the same size
float fScale = 1 + fBiasDist / fZ;
//adjust the points
for(uint32 nCurrPt = 0; nCurrPt < 4; nCurrPt++)
{
LTVector& vPt = SpriteVerts[nCurrPt].m_Vec;
vPt = vBasisRight * (vPt - vBasisPos).Dot(vBasisRight) * fScale +
vBasisUp * (vPt - vBasisPos).Dot(vBasisUp) * fScale +
(fZ + fBiasDist) * vBasisForward + vBasisPos;
}
}
//Render our lovely verts
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pInstance->m_nEffectShaderID);
if(pEffect)
{
pEffect->UploadVertexDeclaration();
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
RTexture* pTexture = (RTexture*)pShared->m_pRenderData;
pD3DEffect->SetTexture("texture0", pTexture->m_pD3DTexture);
i_client_shell->OnEffectShaderSetParams(pEffect, NULL, NULL, LTShaderDeviceStateImp::GetSingleton());
UINT nPasses = 0;
pD3DEffect->Begin(&nPasses, 0);
for(UINT i = 0; i < nPasses; ++i)
{
pD3DEffect->BeginPass(i);
D3D_CALL(PD3DDEVICE->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, 2, SpriteVerts, sizeof(CSpriteVertex)));
pD3DEffect->EndPass();
}
pD3DEffect->End();
}
}
else
{
D3D_CALL(PD3DDEVICE->SetVertexShader(NULL));
D3D_CALL(PD3DDEVICE->SetFVF(SPRITEVERTEX_FORMAT));
D3D_CALL(PD3DDEVICE->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, 2, SpriteVerts, sizeof(CSpriteVertex)));
}
d3d_DisableTexture(0);
}
static void d3d_DrawRotatableSprite(const ViewParams& Params, SpriteInstance *pInstance, SharedTexture *pShared)
{
if(!d3d_SetTexture(pShared, 0, eFS_SpriteTexMemory))
return;
float fWidth = (float)((RTexture*)pShared->m_pRenderData)->GetBaseWidth();
float fHeight = (float)((RTexture*)pShared->m_pRenderData)->GetBaseHeight();
//cache the object position
LTVector vPos = pInstance->GetPos();
LTMatrix mRotation;
d3d_SetupTransformation(&vPos, (float*)&pInstance->m_Rotation, &pInstance->m_Scale, &mRotation);
//get our basis vectors
LTVector vRight, vUp, vForward;
mRotation.GetBasisVectors(&vRight, &vUp, &vForward);
//scale the vectors to be the appropriate size
vRight *= fWidth;
vUp *= fHeight;
// Setup the points.
RGBColor Color;
d3d_GetSpriteColor(pInstance, &Color);
uint32 nColor = Color.color;
CSpriteVertex SpriteVerts[4];
SpriteVerts[0].SetupVert(vPos + vUp - vRight, nColor, 0.0f, 0.0f);
SpriteVerts[1].SetupVert(vPos + vUp + vRight, nColor, 1.0f, 0.0f);
SpriteVerts[2].SetupVert(vPos + vRight - vUp, nColor, 1.0f, 1.0f);
SpriteVerts[3].SetupVert(vPos - vRight - vUp, nColor, 0.0f, 1.0f);
//figure out our final vertices to use
CSpriteVertex *pPoints;
uint32 nPoints;
CSpriteVertex ClippedSpriteVerts[40 + 5];
if(pInstance->m_ClipperPoly != INVALID_HPOLY)
{
if(!d3d_ClipSprite(pInstance, pInstance->m_ClipperPoly, &pPoints, &nPoints, ClippedSpriteVerts))
{
return;
}
}
else
{
pPoints = SpriteVerts;
nPoints = 4;
}
if((pInstance->m_Flags & FLAG_SPRITEBIAS) && !(pInstance->m_Flags & FLAG_REALLYCLOSE))
{
//adjust the points
for(uint32 nCurrPt = 0; nCurrPt < nPoints; nCurrPt++)
{
//get the sprite vertex that we are modifying
LTVector& vPt = SpriteVerts[nCurrPt].m_Vec;
//find a point relative to the viewer position
LTVector vPtRelCamera = vPt - Params.m_Pos;
//determine the distance from the camera
float fZ = vPtRelCamera.Dot(Params.m_Forward);
if(fZ <= NEARZ)
continue;
//find the bias, up to, but not including the near plane
float fBiasDist = SPRITE_POSITION_ZBIAS;
if((fZ + fBiasDist) < NEARZ)
fBiasDist = NEARZ - fZ;
//now adjust our vectors accordingly so that we can move it forward
//but have it be the same size
float fScale = 1 + fBiasDist / fZ;
vPt = Params.m_Right * vPtRelCamera.Dot(Params.m_Right) * fScale +
Params.m_Up * vPtRelCamera.Dot(Params.m_Up) * fScale +
(fZ + fBiasDist) * Params.m_Forward + Params.m_Pos;
}
}
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pInstance->m_nEffectShaderID);
if(pEffect)
{
pEffect->UploadVertexDeclaration();
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
RTexture* pTexture = (RTexture*)pShared->m_pRenderData;
pD3DEffect->SetTexture("texture0", pTexture->m_pD3DTexture);
i_client_shell->OnEffectShaderSetParams(pEffect, NULL, NULL, LTShaderDeviceStateImp::GetSingleton());
UINT nPasses = 0;
pD3DEffect->Begin(&nPasses, 0);
for(UINT i = 0; i < nPasses; ++i)
{
pD3DEffect->BeginPass(i);
D3D_CALL(PD3DDEVICE->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, nPoints-2, pPoints, sizeof(CSpriteVertex)));
pD3DEffect->EndPass();
}
pD3DEffect->End();
}
}
else
{
D3D_CALL(PD3DDEVICE->SetVertexShader(NULL));
D3D_CALL(PD3DDEVICE->SetFVF(SPRITEVERTEX_FORMAT));
D3D_CALL(PD3DDEVICE->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, nPoints-2, pPoints, sizeof(CSpriteVertex)));
}
d3d_DisableTexture(0);
}
void d3d_DrawPolyGrid(const ViewParams &Params, LTObject *pObj)
{
//the global pixel shader to be used for the water bumpmapping and a flag indicating if
//creation failed
bool s_bPixelShaderFailed = false;
//make sure that the polygrid is valid
assert(pObj);
//get our polygrid
LTPolyGrid *pGrid = (LTPolyGrid*)pObj;
// Make sure it's initialized.
if(!pGrid->m_Data)
return;
//must have an index buffer
if(!pGrid->m_Indices || (pGrid->m_nIndices == 0))
return;
//and of course, make sure that the size is reasonable
if((pGrid->m_Width < 2) || (pGrid->m_Height < 2))
return;
IncFrameStat(eFS_PolyGridTriangles, pGrid->m_nTris);
//cache the half dimensions
float fHalfGridWidth = ((float)pGrid->m_Width - 1) * 0.5f;
float fHalfGridHeight = ((float)pGrid->m_Height - 1) * 0.5f;
//now we need to build our color lookup table for this polygrid, this is faster for any
//polygrid that is larger than 8x8, and even then we can get a nice tight loop that
//should still be rather optimal
// Set the blending mode based on the flags.
uint32 nSrcBlend, nDestBlend, nFog, nFogColor;
d3d_GetBlendStates(pGrid, nSrcBlend, nDestBlend, nFog, nFogColor);
StateSet ssSrcBlend(D3DRS_SRCBLEND, nSrcBlend);
StateSet ssDestBlend(D3DRS_DESTBLEND, nDestBlend);
StateSet ssFog(D3DRS_FOGENABLE, nFog);
StateSet ssFogColor(D3DRS_FOGCOLOR, nFogColor);
//flag indicating whether or not
bool bEnvMap = false;
bool bCubicEnvMap = false;
bool bBumpMap = false;
//vertex information
uint32 nVertexSize = sizeof(CPolyGridVertex);
uint32 nVertexFVF = POLYGRIDVERTEX_FORMAT;
//UV scales to adjust the texture by (defaults to 1, but if we are bump mapping, this will
//be set to the detail texture scale)
float fPGUScale = 1.0f;
float fPGVScale = 1.0f;
// Set the texture if necessary.
SpriteTracker* pTracker;
LTPixelShader *pPixelShader = NULL;
if(pGrid->m_pSprite)
{
pTracker = &pGrid->m_SpriteTracker;
if(pTracker->m_pCurFrame)
{
SharedTexture* pTex = pTracker->m_pCurFrame->m_pTex;
if(pTex)
{
//get the type of this texture
ESharedTexType eTexType = pTex->m_eTexType;
//the base texture
SharedTexture* pBaseTex = NULL;
//the environment map
SharedTexture* pEnvMapTex = pGrid->m_pEnvMap;
//the bumpmap
SharedTexture* pBumpMapTex = NULL;
//determine our texture data
if(pGrid->m_nPGFlags & PG_NORMALMAPSPRITE)
{
//only use a bump map texture if we actually have an environment map
if(pEnvMapTex)
pBumpMapTex = pTex;
}
else
{
//we have a normal texture
pBaseTex = pTex;
}
// Set up the environment mapping texture if applicable
if( pEnvMapTex && g_CV_EnvMapPolyGrids.m_Val)
{
//see if the is a cubic environment map
RTexture *pRenderTexture = (RTexture*)pEnvMapTex->m_pRenderData;
if(pRenderTexture && pRenderTexture->IsCubeMap())
{
bCubicEnvMap = true;
}
bEnvMap = true;
}
if( pBumpMapTex && g_CV_BumpMapPolyGrids.m_Val)
{
//we now need to make sure that the bump map shader is valid
//see if we need to load it
if (!s_bPixelShaderFailed)
{
// Get the pixel shader.
pPixelShader = LTPixelShaderMgr::GetSingleton().GetPixelShader(LTPixelShader::PIXELSHADER_ENVBUMPMAP);
if (NULL == pPixelShader)
{
FileRef ref;
ref.m_FileType = FILE_ANYFILE;
ref.m_pFilename = "ps\\envbumpmap.psh";
// Try to load it.
ILTStream *pStream = g_pIClientFileMgr->OpenFile(&ref);
if (NULL != pStream)
{
if (LTPixelShaderMgr::GetSingleton().AddPixelShader(pStream, ref.m_pFilename,
LTPixelShader::PIXELSHADER_ENVBUMPMAP, true))
{
pPixelShader = LTPixelShaderMgr::GetSingleton().GetPixelShader(LTPixelShader::PIXELSHADER_ENVBUMPMAP);
}
// Close the file.
pStream->Release();
}
}
}
// See if we can continue.
if (NULL != pPixelShader && pPixelShader->IsValidShader())
{
bBumpMap = true;
nVertexSize = sizeof(CPolyGridBumpVertex);
nVertexFVF = POLYGRIDBUMPVERTEX_FORMAT;
fPGUScale = ((RTexture*)pBumpMapTex->m_pRenderData)->m_DetailTextureScale;
fPGVScale = fPGUScale;
}
else
{
//we failed to create the shader, the device can't support it
s_bPixelShaderFailed = true;
}
}
//setup the textures based upon the configuration
if(bBumpMap)
{
d3d_SetTexture(pBumpMapTex, 0, eFS_PolyGridBumpMapTexMemory);
d3d_SetTexture(pEnvMapTex, 3, eFS_PolyGridEnvMapTexMemory);
}
else
{
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pGrid->m_nEffectShaderID);
if(pEffect)
{
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
nVertexSize = sizeof(CPolyGridEffectVertex);
RTexture* pRTexture = (RTexture*)pBaseTex->m_pRenderData;
pD3DEffect->SetTexture("texture0", pRTexture->m_pD3DTexture);
if(bEnvMap)
{
pRTexture = (RTexture*)pEnvMapTex->m_pRenderData;
pD3DEffect->SetTexture("texture1", pRTexture->m_pD3DTexture);
}
}
}else
{
d3d_SetTexture(pBaseTex, 0, eFS_PolyGridBaseTexMemory);
if(bEnvMap)
{
d3d_SetTexture(pEnvMapTex, 1, eFS_PolyGridEnvMapTexMemory);
}
}
}
}
else
{
//if we didn't set any texture, we need to make sure and clear out the texture
//channel
d3d_DisableTexture(0);
}
}
}
//specify that we were visible
pGrid->m_Flags |= FLAG_INTERNAL1;
// Build the vertex list.
uint32 nBufferSize = pGrid->m_Width * pGrid->m_Height * nVertexSize;
if(nBufferSize > g_TriVertListSize)
{
//we need to reallocate our list of vertices
dfree(g_TriVertList);
LT_MEM_TRACK_ALLOC(g_TriVertList = dalloc(nBufferSize),LT_MEM_TYPE_RENDERER);
//check the allocation
if(!g_TriVertList)
{
g_TriVertListSize = 0;
return;
}
g_TriVertListSize = nBufferSize;
}
//determine if this polygrid should be lit or not
bool bFresnel = (pGrid->m_nPGFlags & PG_FRESNEL) && (g_CV_FresnelPolyGrids.m_Val) ? true : false;
//determine what alpha value we should use
uint8 nColorAlpha = 0;
if(!bEnvMap)
nColorAlpha = 255;
else if(!bFresnel)
nColorAlpha = 128;
float fScaledR = pGrid->m_ColorR * MATH_ONE_OVER_255;
float fScaledG = pGrid->m_ColorG * MATH_ONE_OVER_255;
float fScaledB = pGrid->m_ColorB * MATH_ONE_OVER_255;
uint32 nColorTable[256];
for(uint32 nCurrColor = 0; nCurrColor < 256; nCurrColor++)
{
//Note that the color table is 0..255, object color is 0..255 as well
nColorTable[nCurrColor] = D3DRGBA_255( pGrid->m_ColorTable[nCurrColor].x * fScaledR,
pGrid->m_ColorTable[nCurrColor].y * fScaledG,
pGrid->m_ColorTable[nCurrColor].z * fScaledB,
nColorAlpha);
}
//setup our world matrix to represent a space that holds the orientation of the polygrid
//as well as the center position. This allows all operations to take place
//as if performed on the XZ plane (note that we don't do the scale as that tends
//to mess up normals)
LTMatrix mWorldTrans;
LTVector vUnitScale(1.0f, 1.0f, 1.0f);
d3d_SetupTransformation(&pGrid->GetPos(), (float*)&pGrid->m_Rotation, &vUnitScale, &mWorldTrans);
d3d_SetD3DMat(D3DTS_WORLD, &mWorldTrans);
//calculate our position increments
float fXInc = pGrid->GetDims().x * 2.0f / (pGrid->m_Width - 1);
float fZInc = pGrid->GetDims().z * 2.0f / (pGrid->m_Height - 1);
float fYScale = pGrid->GetDims().y / 127.0f;
float fXStart = -fHalfGridWidth * fXInc;
float fCurrX = fXStart;
float fCurrZ = -fHalfGridHeight * fZInc;
int8* pDataPos = (int8*)pGrid->m_Data;
int8* pDataEnd = pDataPos + pGrid->m_Width * pGrid->m_Height;
int8* pLineDataEnd = pDataPos + pGrid->m_Width;
uint32* pColor = nColorTable + 128;
float fXScale = pGrid->m_xScale / ((pGrid->m_Width - 1) * fXInc);
float fZScale = pGrid->m_yScale / ((pGrid->m_Height - 1) * fZInc);
float fStartU = (float)fmod(pGrid->m_xPan * fPGUScale, 1.0f);
float fStartV = (float)fmod(pGrid->m_yPan * fPGVScale, 1.0f);
float fCurrU = fStartU;
float fCurrV = fStartV;
float fUInc = fXInc * fXScale * fPGUScale;
float fVInc = fZInc * fZScale * fPGVScale;
int32 nWidth = pGrid->m_Width;
float fSpacingX = fXInc * 2.0f;
float fSpacingZ = fZInc * 2.0f;
uint32 nNumVerts;
bool bEffect = false;
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pGrid->m_nEffectShaderID);
if(pEffect)
{
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
bEffect = true;
}
}
if(bBumpMap)
{
CPolyGridBumpVertex* pVertexPos = (CPolyGridBumpVertex*)g_TriVertList;
if(pGrid->m_pValidMask)
{
//this polygrid has a valid mask, meaning that we need to skip over vertices
//as needed
uint32* pCurrMask = pGrid->m_pValidMask;
//amount to adjust the mask at the end of a line
uint32 nMaskLineAdjust = (pGrid->m_Width % 32) ? 1 : 0;
uint32 nShift;
uint32 nNormalY1 = 0;
uint32 nNormalY2 = nWidth;
float fWidthTimesHeight = fSpacingX * fSpacingZ;
while(pDataPos < pDataEnd)
{
nShift = 0x1;
while(pDataPos < pLineDataEnd)
{
if(*pCurrMask & nShift)
{
//this is valid, add this vertex
d3d_SetupVertexPos(pVertexPos, fCurrX, *pDataPos * fYScale, fCurrZ, pColor[*pDataPos], fCurrU, fCurrV);
//generate a normal for it
GenerateBasisSpace(pDataPos, pVertexPos, -1, 1, nNormalY1, nNormalY2, fSpacingX, fSpacingZ, fWidthTimesHeight, fYScale);
//move along to the next vertex
pVertexPos++;
}
pDataPos++;
fCurrX += fXInc;
fCurrU += fUInc;
if(nShift == 0x80000000)
{
pCurrMask++;
nShift = 1;
}
else
{
nShift <<= 1;
}
}
//reset the line
fCurrX = fXStart;
//update our threshold for when to move onto the next line
pLineDataEnd += pGrid->m_Width;
pCurrMask += nMaskLineAdjust;
//update our position
fCurrZ += fZInc;
fCurrU = fStartU;
fCurrV += fVInc;
//update the normal offsets to ensure we don't go outside of our buffer
nNormalY1 = -nWidth;
if(pLineDataEnd >= pDataEnd)
nNormalY2 = 0;
}
nNumVerts = pVertexPos - (CPolyGridBumpVertex*)g_TriVertList;
}
else
{
nNumVerts = pGrid->m_Width * pGrid->m_Height;
while(pDataPos < pDataEnd)
{
while(pDataPos < pLineDataEnd)
{
d3d_SetupVertexPos(pVertexPos, fCurrX, *pDataPos * fYScale, fCurrZ, pColor[*pDataPos], fCurrU, fCurrV);
pDataPos++;
pVertexPos++;
fCurrX += fXInc;
fCurrU += fUInc;
}
//reset the line
fCurrX = fXStart;
//update our threshold for when to move onto the next line
pLineDataEnd += pGrid->m_Width;
//update our position
fCurrZ += fZInc;
fCurrU = fStartU;
fCurrV += fVInc;
}
//now we need to generate the normals for the polygrid
GeneratePolyGridVectors(pGrid, (CPolyGridBumpVertex*)g_TriVertList, GenerateBasisSpace);
}
}
else if(bEffect)
{
CPolyGridEffectVertex* pVertexPos = (CPolyGridEffectVertex*)g_TriVertList;
if(pGrid->m_pValidMask)
{
//this polygrid has a valid mask, meaning that we need to skip over vertices
//as needed
uint32* pCurrMask = pGrid->m_pValidMask;
//amount to adjust the mask at the end of a line
uint32 nMaskLineAdjust = (pGrid->m_Width % 32) ? 1 : 0;
uint32 nShift;
uint32 nNormalY1 = 0;
uint32 nNormalY2 = nWidth;
float fWidthTimesHeight = fSpacingX * fSpacingZ;
while(pDataPos < pDataEnd)
{
nShift = 0x1;
while(pDataPos < pLineDataEnd)
{
if(*pCurrMask & nShift)
{
//this is valid, add this vertex
d3d_SetupVertexPos(pVertexPos, fCurrX, *pDataPos * fYScale, fCurrZ, pColor[*pDataPos], fCurrU, fCurrV);
//generate a normal for it
GenerateEffectBasisSpace(pDataPos, pVertexPos, -1, 1, nNormalY1, nNormalY2, fSpacingX, fSpacingZ, fWidthTimesHeight, fYScale);
//move along to the next vertex
pVertexPos++;
}
pDataPos++;
fCurrX += fXInc;
fCurrU += fUInc;
if(nShift == 0x80000000)
{
pCurrMask++;
nShift = 1;
}
else
{
nShift <<= 1;
}
}
//reset the line
fCurrX = fXStart;
//update our threshold for when to move onto the next line
pLineDataEnd += pGrid->m_Width;
pCurrMask += nMaskLineAdjust;
//update our position
fCurrZ += fZInc;
fCurrU = fStartU;
fCurrV += fVInc;
//update the normal offsets to ensure we don't go outside of our buffer
nNormalY1 = -nWidth;
if(pLineDataEnd >= pDataEnd)
nNormalY2 = 0;
}
nNumVerts = pVertexPos - (CPolyGridEffectVertex*)g_TriVertList;
}
else
{
nNumVerts = pGrid->m_Width * pGrid->m_Height;
while(pDataPos < pDataEnd)
{
while(pDataPos < pLineDataEnd)
{
d3d_SetupVertexPos(pVertexPos, fCurrX, *pDataPos * fYScale, fCurrZ, pColor[*pDataPos], fCurrU, fCurrV);
pDataPos++;
pVertexPos++;
fCurrX += fXInc;
fCurrU += fUInc;
}
//reset the line
fCurrX = fXStart;
//update our threshold for when to move onto the next line
pLineDataEnd += pGrid->m_Width;
//update our position
fCurrZ += fZInc;
fCurrU = fStartU;
fCurrV += fVInc;
}
//now we need to generate the normals for the polygrid
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pGrid->m_nEffectShaderID);
if(pEffect)
{
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
GeneratePolyGridVectors(pGrid, (CPolyGridEffectVertex*)g_TriVertList, GenerateEffectBasisSpace);
}
}
else
{
GeneratePolyGridVectors(pGrid, (CPolyGridVertex*)g_TriVertList, GenerateNormal);
}
}
}
else //fixed function
{
CPolyGridVertex* pVertexPos = (CPolyGridVertex*)g_TriVertList;
if(pGrid->m_pValidMask)
{
//this polygrid has a valid mask, meaning that we need to skip over vertices
//as needed
uint32* pCurrMask = pGrid->m_pValidMask;
//amount to adjust the mask at the end of a line
uint32 nMaskLineAdjust = (pGrid->m_Width % 32) ? 1 : 0;
uint32 nShift;
uint32 nNormalY1 = 0;
uint32 nNormalY2 = nWidth;
float fWidthTimesHeight = fSpacingX * fSpacingZ;
while(pDataPos < pDataEnd)
{
nShift = 0x1;
while(pDataPos < pLineDataEnd)
{
if(*pCurrMask & nShift)
{
//this is valid, add this vertex
d3d_SetupVertexPos(pVertexPos, fCurrX, *pDataPos * fYScale, fCurrZ, pColor[*pDataPos], fCurrU, fCurrV);
//generate a normal for it
GenerateNormal(pDataPos, pVertexPos, -1, 1, nNormalY1, nNormalY2, fSpacingX, fSpacingZ, fWidthTimesHeight, fYScale);
//move along to the next vertex
pVertexPos++;
}
pDataPos++;
fCurrX += fXInc;
fCurrU += fUInc;
if(nShift == 0x80000000)
{
pCurrMask++;
nShift = 1;
}
else
{
nShift <<= 1;
}
}
//reset the line
fCurrX = fXStart;
//update our threshold for when to move onto the next line
pLineDataEnd += pGrid->m_Width;
pCurrMask += nMaskLineAdjust;
//update our position
fCurrZ += fZInc;
fCurrU = fStartU;
fCurrV += fVInc;
//update the normal offsets to ensure we don't go outside of our buffer
nNormalY1 = -nWidth;
if(pLineDataEnd >= pDataEnd)
nNormalY2 = 0;
}
nNumVerts = pVertexPos - (CPolyGridVertex*)g_TriVertList;
}
else
{
nNumVerts = pGrid->m_Width * pGrid->m_Height;
while(pDataPos < pDataEnd)
{
while(pDataPos < pLineDataEnd)
{
d3d_SetupVertexPos(pVertexPos, fCurrX, *pDataPos * fYScale, fCurrZ, pColor[*pDataPos], fCurrU, fCurrV);
pDataPos++;
pVertexPos++;
fCurrX += fXInc;
fCurrU += fUInc;
}
//reset the line
fCurrX = fXStart;
//update our threshold for when to move onto the next line
pLineDataEnd += pGrid->m_Width;
//update our position
fCurrZ += fZInc;
fCurrU = fStartU;
fCurrV += fVInc;
}
//now we need to generate the normals for the polygrid
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pGrid->m_nEffectShaderID);
if(pEffect)
{
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
GeneratePolyGridVectors(pGrid, (CPolyGridEffectVertex*)g_TriVertList, GenerateEffectBasisSpace);
}
}
else
{
GeneratePolyGridVectors(pGrid, (CPolyGridVertex*)g_TriVertList, GenerateNormal);
}
}
}
// Set environment map texture coordinates.
if(bEnvMap && !bBumpMap)
{
d3d_SetEnvMapTextureStates(Params, pTracker->m_pCurFrame->m_pTex->m_eTexType, pGrid, bCubicEnvMap);
}
//see if we are just doing a base texture
if(!bEnvMap && !bBumpMap)
{
d3d_SetDefaultBlendStates();
}
//generate the alpha if we can use it
if(bBumpMap)
{
GeneratePolyGridFresnelAlphaAndCamera(Params.m_Pos, (CPolyGridBumpVertex*)g_TriVertList, pGrid, nNumVerts);
}
else if(bFresnel)
{
GeneratePolyGridFresnelAlpha(Params.m_Pos, (CPolyGridVertex*)g_TriVertList, pGrid, nNumVerts);
}
//make the backfacing polygons cull
StateSet ssCullMode(D3DRS_CULLMODE, (pGrid->m_nPGFlags & PG_NOBACKFACECULL) ? D3DCULL_NONE : D3DCULL_CCW);
//setup the pixel shader if we are bumpmapping
if(bBumpMap)
{
assert(NULL != pPixelShader && pPixelShader->IsValidShader());
// Set the pixel shader constants.
float *pConstants = pPixelShader->GetConstants();
pConstants[0] = 0.0f;
pConstants[1] = 0.0f;
pConstants[2] = 0.0f;
pConstants[3] = pGrid->m_ColorA / 255.0f;
LTPixelShaderMgr::GetSingleton().SetPixelShaderConstants(pPixelShader);
// Install the pixel shader.
LTPixelShaderMgr::GetSingleton().InstallPixelShader(pPixelShader);
//now actually draw the polygrid
D3D_CALL(PD3DDEVICE->SetVertexShader(NULL));
D3D_CALL(PD3DDEVICE->SetFVF(nVertexFVF));
int nNumPolies = (pGrid->m_nIndices/3);
// Is this polygrid larger than our buffer? If so, break it into smaller patches.
if(nNumPolies > g_CV_PolyGridBufferSize)
{
int32 nRemainingPolies = nNumPolies;
uint32 nCurrentVertPosition = 0;
while(nRemainingPolies > 0)
{
uint32 nPoliesThisFrame = (nRemainingPolies > g_CV_PolyGridBufferSize) ? g_CV_PolyGridBufferSize: nRemainingPolies;
D3D_CALL(PD3DDEVICE->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST,0,nNumVerts,nPoliesThisFrame,&pGrid->m_Indices[nCurrentVertPosition],D3DFMT_INDEX16,g_TriVertList, nVertexSize));
nCurrentVertPosition += nPoliesThisFrame*3;
nRemainingPolies -= nPoliesThisFrame;
}
}
else
{
D3D_CALL(PD3DDEVICE->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST,0,nNumVerts,(pGrid->m_nIndices)/3,pGrid->m_Indices,D3DFMT_INDEX16,g_TriVertList, nVertexSize));
}
// Uninstall the pixel shader.
LTPixelShaderMgr::GetSingleton().UninstallPixelShader();
d3d_DisableTexture(0);
d3d_DisableTexture(3);
}
else
{
//now actually draw the polygrid
D3D_CALL(PD3DDEVICE->SetVertexShader(NULL));
D3D_CALL(PD3DDEVICE->SetFVF(nVertexFVF));
int nNumPolies = (pGrid->m_nIndices/3);
// Is this polygrid larger than our buffer? If so, break it into smaller patches.
if(nNumPolies > g_CV_PolyGridBufferSize)
{
int32 nRemainingPolies = nNumPolies;
uint32 nCurrentVertPosition = 0;
while(nRemainingPolies > 0)
{
uint32 nPoliesThisFrame = (nRemainingPolies > g_CV_PolyGridBufferSize) ? g_CV_PolyGridBufferSize: nRemainingPolies;
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pGrid->m_nEffectShaderID);
if(pEffect)
{
pEffect->UploadVertexDeclaration();
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
i_client_shell->OnEffectShaderSetParams(pEffect, NULL, NULL, LTShaderDeviceStateImp::GetSingleton());
UINT nPasses = 0;
pD3DEffect->Begin(&nPasses, 0);
for(UINT i = 0; i < nPasses; ++i)
{
pD3DEffect->BeginPass(i);
D3D_CALL(PD3DDEVICE->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST,0,nNumVerts,nPoliesThisFrame,&pGrid->m_Indices[nCurrentVertPosition],D3DFMT_INDEX16,g_TriVertList, nVertexSize));
pD3DEffect->EndPass();
}
pD3DEffect->End();
}
}
else
{
D3D_CALL(PD3DDEVICE->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST,0,nNumVerts,nPoliesThisFrame,&pGrid->m_Indices[nCurrentVertPosition],D3DFMT_INDEX16,g_TriVertList, nVertexSize));
}
nCurrentVertPosition += nPoliesThisFrame*3;
nRemainingPolies -= nPoliesThisFrame;
}
}
else
{
LTEffectImpl* pEffect = (LTEffectImpl*)LTEffectShaderMgr::GetSingleton().GetEffectShader(pGrid->m_nEffectShaderID);
if(pEffect)
{
pEffect->UploadVertexDeclaration();
ID3DXEffect* pD3DEffect = pEffect->GetEffect();
if(pD3DEffect)
{
i_client_shell->OnEffectShaderSetParams(pEffect, NULL, NULL, LTShaderDeviceStateImp::GetSingleton());
UINT nPasses = 0;
pD3DEffect->Begin(&nPasses, 0);
for(UINT i = 0; i < nPasses; ++i)
{
pD3DEffect->BeginPass(i);
D3D_CALL(PD3DDEVICE->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST,0,nNumVerts,(pGrid->m_nIndices)/3,pGrid->m_Indices,D3DFMT_INDEX16,g_TriVertList, nVertexSize));
pD3DEffect->EndPass();
}
pD3DEffect->End();
}
}
else
{
// No Effect Shader, just fixed function.
D3D_CALL(PD3DDEVICE->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST,0,nNumVerts,(pGrid->m_nIndices)/3,pGrid->m_Indices,D3DFMT_INDEX16,g_TriVertList, nVertexSize));
}
}
d3d_DisableTexture(0);
d3d_DisableTexture(1);
}
if (bEnvMap)
d3d_UnsetEnvMapTextureStates();
//reset our world transform so that it won't mess up the rendering of other objects
d3d_SetD3DMat(D3DTS_WORLD, &Params.m_mIdentity);
}