void draw(const float r, const float g, const float b)
{
#ifndef BT_NO_PROFILE
CProfileManager::Reset();
#endif //BT_NO_PROFILE
BT_PROFILE("draw()");
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport ( 0, 0, m_glutScreenWidth, m_glutScreenHeight );
btScalar aspect = m_glutScreenWidth / (btScalar)m_glutScreenHeight;
m_fluidWorld->stepSimulation(btScalar(1.0/60.0) ,1, btScalar(1.0/60.0));
m_fluidWorld->setFluidSolver(m_fluidSolverCPU);
// if(m_fluidWorld) m_fluidWorld->debugDrawWorld(); //Optional but useful: debug drawing to detect problems
updateCamera();
esMatrixLoadIdentity(&projMat);
esMatrixLoadIdentity(&viewMat);
esFrustum(&projMat, -aspect, aspect, -1.0f, 1.0f, 1.0f, 1000.0f);
esMatrixLookAt(&viewMat,
0.0f, 100.0f, 20.0f,
0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
glDisable(GL_BLEND);
// plane->draw(plane_motion_x, -10, plane_motion_z, basicShader,&projMat,&viewMat);
renderShootBox(plane_motion_x, -10, plane_motion_z, basicShader,&projMat,&viewMat);
renderFluids(r, g, b);
glUseProgram(0);
}
void Init(GLContext *_context)
{
_context->userObject = new UserData();
UserData *_user = (UserData *)_context->userObject;
_user->object = GLProgram::createWithFile("shader/sun/sun.vsh", "shader/sun/sun.fsh");
_user->mvpLoc = _user->object->getUniformLocation("u_mvpMatrix");
_user->mvLoc = _user->object->getUniformLocation("u_mvMatrix");
_user->baseMapLoc = _user->object->getUniformLocation("u_baseMap");
_user->lightColorLoc = _user->object->getUniformLocation("u_lightColor");
TGAImage _earthMap("tga/Earth512x256.tga");
_user->earthMapId = _earthMap.genTextureMap();
TGAImage _moonMap("tga/Moon256x128.tga");
_user->moonMapId = _moonMap.genTextureMap();
_user->earthAngle = 0.0f;
_user->moonAngle = 0.0f;
_user->mSphere = GLSphere::createWithSlice(256, 0.6f);
//
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
// glEnable(GL_BLEND);
// return true;
esMatrixLookAt(&_user->viewMatrix, &GLVector3(0.0f,0.0f,0.0f),&GLVector3(0.0f,0.0f,-5.0f),&GLVector3(0.0f,1.0f,0.0f));
}
//固定不变的矩阵
void SetFixedMatrix(GLContext *_context)
{
UserData *_user = (UserData*)_context->userObject;
Size _size = _context->getWinSize();
esPerspective(&_user->projMatrix, 50.0f, _size.width / _size.height, 1.0f, 100.0f);
// esOrtho(&_user->projMatrix, -4.0f, 4.0f, -4.0f, 4.0f, 0.0f, 8.0f);
//光源的视野
// esMatrixLookAt(&_user->viewMatrix, &GLVector3(4.0f, 2.5f, -4.0f), &GLVector3(0.0f, 0.0f, -4.0f), &GLVector3(0.0f, 1.0f, 0.0f));
esMatrixLookAt(&_user->viewMatrix, &GLVector3(2.3f, 2.5f, -4.0f), &GLVector3(2.0f, 0.0f, -4.0f), &GLVector3(0.0f, 1.0f, 0.0f));
//光线的方向
ESMatrix3 trunkMatrix;
esMatrixTrunk(&trunkMatrix, &_user->viewMatrix);
_user->lightVector = esMatrixMultiplyVector3(&GLVector3(2.3f - 2.0f, 2.5f - 0.0f, -4.0f + 4.0f), &trunkMatrix);// normalize(&GLVector3(2.3f - 2.0f, 2.5f - 0.0f, -4.0f + 4.0f));
_user->lightVector = normalize(&_user->lightVector);
ESMatrix identity;
///////////////////地面//////////////////
//旋转
esRotate(&_user->lightGroundMatrix, -90.0f, 1.0f, 0.0f, 0.0f);
//平移
esTranslate(&_user->lightGroundMatrix, 0.0f, -1.0f, -4.0f);
//视图矩阵
esMatrixMultiply(&_user->lightGroundMatrix, &_user->lightGroundMatrix, &_user->viewMatrix);
//获取法线矩阵
esMatrixTrunk(&_user->normalGroundMatrix, &_user->lightGroundMatrix);
GLVector3 rotatevector = esMatrixMultiplyVector3(&GLVector3(0.0f, 0.0f, 1.0f), &_user->normalGroundMatrix);
esMatrixMultiply(&_user->lightGroundMatrix, &_user->lightGroundMatrix, &_user->projMatrix);
////////////////////
//旋转
esRotate(&_user->eyeGroundMatrix, -90.0f, 1.0f, 0.0f, 0.0f);
//平移
esTranslate(&_user->eyeGroundMatrix, 0.0f, -1.0f, -4.0f);
//视图矩阵
esMatrixLookAt(&_user->eyeViewMatrix, &GLVector3(0.0f, 1.0f, 0.0f), &GLVector3(0.0f, 0.0f, -8.0f), &GLVector3(0.0f, 1.0f, 0.0f));
esMatrixMultiply(&_user->eyeGroundMatrix, &_user->eyeGroundMatrix, &_user->eyeViewMatrix);
//MVP矩阵
esMatrixMultiply(&_user->eyeGroundMatrix, &_user->eyeGroundMatrix, &_user->projMatrix);
}
void updateCamera(){
// BT_PROFILE("updateCamera");
// btScalar rele = m_ele * btScalar(0.01745329251994329547);// rads per deg
// btScalar razi = m_azi * btScalar(0.01745329251994329547);// rads per deg
//
//
// btQuaternion rot(m_cameraUp,razi);
//
//
// btVector3 eyePos(0,0,0);
// eyePos[m_forwardAxis] = -m_cameraDistance;
//
// LOGI("eyepos1 is %f,%f,%f",eyePos.getX(),eyePos.getY(),eyePos.getZ());
// btVector3 forward(eyePos[0],eyePos[1],eyePos[2]);
// if (forward.length2() < SIMD_EPSILON)
// not executed
// {
// forward.setValue(1.f,0.f,0.f);
// }
// btVector3 right = m_cameraUp.cross(forward);
// btQuaternion roll(right,-rele);
//
// eyePos = btMatrix3x3(rot) * btMatrix3x3(roll) * eyePos;
//
// m_cameraPosition[0] = eyePos.getX();
// m_cameraPosition[1] = eyePos.getY();
// m_cameraPosition[2] = eyePos.getZ();
//
//// LOGI("eyepos2 is %f,%f,%f",eyePos.getX(),eyePos.getY(),eyePos.getZ());
// m_cameraPosition += m_cameraTargetPosition;
//
// if (m_glutScreenWidth == 0 && m_glutScreenHeight == 0)
// return;
//
btScalar aspect;
btVector3 extents;
aspect = m_glutScreenWidth / (btScalar)m_glutScreenHeight;
extents.setValue(aspect * 1.0f, 1.0f,0);
if (m_ortho)
{
// not executed
extents *= m_cameraDistance;
btVector3 lower = m_cameraTargetPosition - extents;
btVector3 upper = m_cameraTargetPosition + extents;
// gluOrtho2D(lower.x, upper.x, lower.y, upper.y);
esOrtho(&projMat,lower.getX(), upper.getX(), lower.getY(), upper.getY(),-1000,1000);
// glOrthof(lower.getX(), upper.getX(), lower.getY(), upper.getY(),-1000,1000);
LOGI("ORTHO");
} else
{
// esFrustum(&projMat, -aspect * 1.0f, aspect * 1.0f, 1.0f, -1.0f, 1.0f, 200.0f);
// esMatrixLookAt(&viewMat,
// m_cameraPosition[0], m_cameraPosition[1], m_cameraPosition[2],
// m_cameraTargetPosition[0], m_cameraTargetPosition[1], m_cameraTargetPosition[2],
// m_cameraUp.getX(),m_cameraUp.getY(),m_cameraUp.getZ());
esFrustum(&projMat, -aspect, aspect, -1.0f, 1.0f, 1.0f, 1000.0f);
esMatrixLookAt(&viewMat,
0.0f, 100.0f, 20.0f,
0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f);
}
}