//*******************************************************************************
void CWaterEnvMap::renderTestMesh(IDriver &driver)
{
doInit();
CMaterial testMat;
testMat.setLighting(false);
testMat.texEnvOpRGB(0, CMaterial::Modulate);
testMat.texEnvArg0RGB(0, CMaterial::Texture, CMaterial::SrcColor);
testMat.texEnvArg0RGB(1, CMaterial::Diffuse, CMaterial::SrcColor);
testMat.texEnvOpAlpha(0, CMaterial::Replace);
testMat.texEnvArg0Alpha(0, CMaterial::Constant, CMaterial::SrcAlpha);
testMat.texConstantColor(0, CRGBA(255, 255, 255, 255));
testMat.setDoubleSided(true);
testMat.setZWrite(false);
testMat.setZFunc(CMaterial::always);
// tmp : test cubemap
driver.activeVertexProgram(&testMeshVP);
driver.activeVertexBuffer(_TestVB);
driver.activeIndexBuffer(_TestIB);
driver.setConstantMatrix(0, IDriver::ModelViewProjection, IDriver::Identity); // tmp
_MaterialPassThruZTest.setTexture(0, _EnvCubic);
driver.setConstantMatrix(0, IDriver::ModelViewProjection, IDriver::Identity);
driver.setConstant(4, 2.f, 1.f, 0.f, 0.f);
//driver.renderTriangles(testMat, 0, TEST_VB_NUM_TRIS);
driver.renderTriangles(_MaterialPassThruZTest, 0, TEST_VB_NUM_TRIS);
driver.activeVertexProgram(NULL);
}
void CDeform2d::doDeform(const TPoint2DVect &surf, IDriver *drv, IPerturbUV *uvp)
{
nlassert(uvp);
typedef CQuadEffect::TPoint2DVect TPoint2DVect;
TPoint2DVect dest;
CQuadEffect::processPoly(surf, (float) _XGranularity, (float) _YGranularity, dest);
uint realWidth = NLMISC::raiseToNextPowerOf2(_Width);
uint realHeight= NLMISC::raiseToNextPowerOf2(_Height);
// draw the poly contour
/*for (uint k = 0; k < dest.size(); ++k)
{
CDRU::drawLine(dest[k].x, dest[k].y, dest[(k + 1) % dest.size()].x, dest[(k + 1) % dest.size()].y, *drv, CRGBA::Red);
}*/
static CMaterial mat;
mat.setDoubleSided(true);
mat.setLighting(false);
mat.setZFunc(CMaterial::always);
/* mat.setColor(CRGBA::Red);
mat.texEnvOpRGB(0, CMaterial::Add); */
static CVertexBuffer vb;
vb.setName("CDeform2d");
vb.setVertexFormat(CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag);
drv->setFrustum(0, (float) _Width, 0, (float) _Height, -1, 1, false);
drv->setupViewMatrix(CMatrix::Identity);
drv->setupModelMatrix(CMatrix::Identity);
const float iDu = 1.f / _Width;
const float iDv = 1.f / _Height;
const float widthRatio = _Width / (float) realWidth;
const float heightRatio = _Height / (float) realHeight;
float u, u2, v;
float du, dv;
TPoint2DVect::const_iterator it;
// get back datas from frame buffer
for (it = dest.begin(); it != dest.end(); ++it)
{
// todo hulud use the new render to texture interface
// drv->copyFrameBufferToTexture(_Tex, 0, (uint32) it->x,(uint32) it->y, (uint32) it->x, (uint32) it->y, _XGranularity, _YGranularity);
}
/** setup the whole vertex buffer
* we don't share vertices here, as we work with unaligned quads
*/
vb.setNumVertices((uint32)dest.size() << 2);
mat.setTexture(0, _Tex);
{
CVertexBufferReadWrite vba;
vb.lock (vba);
uint k = 0; // current index in the vertex buffer
for (it = dest.begin(); it != dest.end(); ++it, k += 4)
{
// \todo optimize this by a direct access to the vertex buffer (if needed)
// blit data to frame buffer and apply deformations
vba.setVertexCoord(k, NLMISC::CVector(it->x, 0, it->y));
vba.setVertexCoord(k + 1, NLMISC::CVector(it->x + _XGranularity, 0, it->y));
vba.setVertexCoord(k + 2, NLMISC::CVector(it->x + _XGranularity, 0, it->y + _YGranularity));
vba.setVertexCoord(k + 3, NLMISC::CVector(it->x , 0, it->y + _YGranularity));
// perturbation of the uv coordinates
u = it->x * iDu;
v = it->y * iDv;
uvp->perturbUV(u, v, du, dv);
vba.setTexCoord(k, 0, (u + du) * widthRatio, (v + dv) * heightRatio );
u2 = (it->x + _XGranularity) * iDu;
uvp->perturbUV(u2, v, du, dv);
vba.setTexCoord(k + 1, 0, (u2 + du) * widthRatio, (v + dv) * heightRatio );
v = (it->y + _YGranularity) * iDv;
uvp->perturbUV(u2, v, du, dv);
vba.setTexCoord(k + 2, 0, (u2 + du) * widthRatio, (v + dv) * heightRatio );
uvp->perturbUV(u, v, du, dv);
vba.setTexCoord(k + 3, 0, (u + du) * widthRatio, (v + dv) * heightRatio );
}
}
drv->activeVertexBuffer(vb);
drv->renderRawQuads(mat, 0, (uint32)dest.size());
}
