// next arguments probably contain redundant info, for later...
void RAS_OpenGLRasterizer::SetViewMatrix(const MT_Matrix4x4 &mat,
const MT_Matrix3x3 & camOrientMat3x3,
const MT_Point3 & pos,
bool perspective)
{
m_viewmatrix = mat;
// correction for stereo
if (Stereo() && perspective)
{
MT_Vector3 unitViewDir(0.0, -1.0, 0.0); // minus y direction, Blender convention
MT_Vector3 unitViewupVec(0.0, 0.0, 1.0);
MT_Vector3 viewDir, viewupVec;
MT_Vector3 eyeline;
// actual viewDir
viewDir = camOrientMat3x3 * unitViewDir; // this is the moto convention, vector on right hand side
// actual viewup vec
viewupVec = camOrientMat3x3 * unitViewupVec;
// vector between eyes
eyeline = viewDir.cross(viewupVec);
switch (m_curreye) {
case RAS_STEREO_LEFTEYE:
{
// translate to left by half the eye distance
MT_Transform transform;
transform.setIdentity();
transform.translate(-(eyeline * m_eyeseparation / 2.0));
m_viewmatrix *= transform;
}
break;
case RAS_STEREO_RIGHTEYE:
{
// translate to right by half the eye distance
MT_Transform transform;
transform.setIdentity();
transform.translate(eyeline * m_eyeseparation / 2.0);
m_viewmatrix *= transform;
}
break;
}
}
m_viewinvmatrix = m_viewmatrix;
m_viewinvmatrix.invert();
// note: getValue gives back column major as needed by OpenGL
MT_Scalar glviewmat[16];
m_viewmatrix.getValue(glviewmat);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixd(glviewmat);
m_campos = pos;
}
MT_Transform
BSP_GhostTestApp3D::
GetTransform(
int i
){
MT_Quaternion q_ax(MT_Vector3(0,1,0),m_rotation_settings[i].m_angle_x);
MT_Quaternion q_ay(MT_Vector3(1,0,0),m_rotation_settings[i].m_angle_y);
MT_Point3 tr(
m_translation_settings[i].m_t_x,
m_translation_settings[i].m_t_y,
m_translation_settings[i].m_t_z
);
MT_Matrix3x3 rotx(q_ax);
MT_Matrix3x3 roty(q_ay);
MT_Matrix3x3 rot = rotx * roty;
MT_Transform trans(tr,rot);
MT_Transform scalet;
scalet.setIdentity();
scalet.scale(m_scale_settings[i],m_scale_settings[i],m_scale_settings[i]);
return trans * scalet;
}
void SG_Tree::get(MT_Point3 *box) const
{
MT_Transform identity;
identity.setIdentity();
m_bbox.get(box, identity);
}
