diff options
Diffstat (limited to 'source/gameengine/Ketsji/KX_Camera.cpp')
| -rw-r--r-- | source/gameengine/Ketsji/KX_Camera.cpp | 453 |
1 files changed, 351 insertions, 102 deletions
diff --git a/source/gameengine/Ketsji/KX_Camera.cpp b/source/gameengine/Ketsji/KX_Camera.cpp index c8575424751..ba4d6e22872 100644 --- a/source/gameengine/Ketsji/KX_Camera.cpp +++ b/source/gameengine/Ketsji/KX_Camera.cpp @@ -28,6 +28,7 @@ * Camera in the gameengine. Cameras are also used for views. */ +#include "GL/glew.h" #include "KX_Camera.h" #include "KX_Scene.h" #include "KX_PythonInit.h" @@ -41,15 +42,17 @@ KX_Camera::KX_Camera(void* sgReplicationInfo, SG_Callbacks callbacks, const RAS_CameraData& camdata, bool frustum_culling, + bool delete_node, PyTypeObject *T) : KX_GameObject(sgReplicationInfo,callbacks,T), m_camdata(camdata), m_dirty(true), m_normalized(false), - m_frustum_culling(frustum_culling && camdata.m_perspective), + m_frustum_culling(frustum_culling), m_set_projection_matrix(false), - m_set_frustum_center(false) + m_set_frustum_center(false), + m_delete_node(delete_node) { // setting a name would be nice... m_name = "cam"; @@ -63,6 +66,12 @@ KX_Camera::KX_Camera(void* sgReplicationInfo, KX_Camera::~KX_Camera() { + if (m_delete_node && m_pSGNode) + { + // for shadow camera, avoids memleak + delete m_pSGNode; + m_pSGNode = NULL; + } } @@ -71,15 +80,16 @@ CValue* KX_Camera::GetReplica() KX_Camera* replica = new KX_Camera(*this); // this will copy properties and so on... - CValue::AddDataToReplica(replica); - ProcessReplica(replica); + replica->ProcessReplica(); return replica; } - -void KX_Camera::ProcessReplica(KX_Camera* replica) + +void KX_Camera::ProcessReplica() { - KX_GameObject::ProcessReplica(replica); + KX_GameObject::ProcessReplica(); + // replicated camera are always registered in the scene + m_delete_node = false; } MT_Transform KX_Camera::GetWorldToCamera() const @@ -190,6 +200,11 @@ float KX_Camera::GetLens() const return m_camdata.m_lens; } +float KX_Camera::GetScale() const +{ + return m_camdata.m_scale; +} + float KX_Camera::GetCameraNear() const @@ -270,80 +285,83 @@ void KX_Camera::ExtractFrustumSphere() MT_Matrix4x4 clip_camcs_matrix = m_projection_matrix; clip_camcs_matrix.invert(); - // detect which of the corner of the far clipping plane is the farthest to the origin - MT_Vector4 nfar; // far point in device normalized coordinate - MT_Point3 farpoint; // most extreme far point in camera coordinate - MT_Point3 nearpoint;// most extreme near point in camera coordinate - MT_Point3 farcenter(0.,0.,0.);// center of far cliping plane in camera coordinate - MT_Scalar F=1.0, N; // square distance of far and near point to origin - MT_Scalar f, n; // distance of far and near point to z axis. f is always > 0 but n can be < 0 - MT_Scalar e, s; // far and near clipping distance (<0) - MT_Scalar c; // slope of center line = distance of far clipping center to z axis / far clipping distance - MT_Scalar z; // projection of sphere center on z axis (<0) - // tmp value - MT_Vector4 npoint(1., 1., 1., 1.); - MT_Vector4 hpoint; - MT_Point3 point; - MT_Scalar len; - for (int i=0; i<4; i++) - { - hpoint = clip_camcs_matrix*npoint; - point.setValue(hpoint[0]/hpoint[3], hpoint[1]/hpoint[3], hpoint[2]/hpoint[3]); - len = point.dot(point); - if (len > F) - { - nfar = npoint; - farpoint = point; - F = len; - } - // rotate by 90 degree along the z axis to walk through the 4 extreme points of the far clipping plane - len = npoint[0]; - npoint[0] = -npoint[1]; - npoint[1] = len; - farcenter += point; - } - // the far center is the average of the far clipping points - farcenter *= 0.25; - // the extreme near point is the opposite point on the near clipping plane - nfar.setValue(-nfar[0], -nfar[1], -1., 1.); - nfar = clip_camcs_matrix*nfar; - nearpoint.setValue(nfar[0]/nfar[3], nfar[1]/nfar[3], nfar[2]/nfar[3]); - N = nearpoint.dot(nearpoint); - e = farpoint[2]; - s = nearpoint[2]; - // projection on XY plane for distance to axis computation - MT_Point2 farxy(farpoint[0], farpoint[1]); - // f is forced positive by construction - f = farxy.length(); - // get corresponding point on the near plane - farxy *= s/e; - // this formula preserve the sign of n - n = f*s/e - MT_Point2(nearpoint[0]-farxy[0], nearpoint[1]-farxy[1]).length(); - c = MT_Point2(farcenter[0], farcenter[1]).length()/e; - // the big formula, it simplifies to (F-N)/(2(e-s)) for the symmetric case - z = (F-N)/(2.0*(e-s+c*(f-n))); - m_frustum_center = MT_Point3(farcenter[0]*z/e, farcenter[1]*z/e, z); - m_frustum_radius = m_frustum_center.distance(farpoint); - -#if 0 - // The most extreme points on the near and far plane. (normalized device coords) - MT_Vector4 hnear(1., 1., 0., 1.), hfar(1., 1., 1., 1.); - - // Transform to hom camera local space - hnear = clip_camcs_matrix*hnear; - hfar = clip_camcs_matrix*hfar; - - // Tranform to 3d camera local space. - MT_Point3 nearpoint(hnear[0]/hnear[3], hnear[1]/hnear[3], hnear[2]/hnear[3]); - MT_Point3 farpoint(hfar[0]/hfar[3], hfar[1]/hfar[3], hfar[2]/hfar[3]); - - // Compute center - // don't use camera data in case the user specifies the matrix directly - m_frustum_center = MT_Point3(0., 0., - (nearpoint.dot(nearpoint) - farpoint.dot(farpoint))/(2.0*(nearpoint[2]-farpoint[2] /*m_camdata.m_clipend - m_camdata.m_clipstart*/))); - m_frustum_radius = m_frustum_center.distance(farpoint); -#endif - + if (m_projection_matrix[3][3] == MT_Scalar(0.0)) + { + // frustrum projection + // detect which of the corner of the far clipping plane is the farthest to the origin + MT_Vector4 nfar; // far point in device normalized coordinate + MT_Point3 farpoint; // most extreme far point in camera coordinate + MT_Point3 nearpoint;// most extreme near point in camera coordinate + MT_Point3 farcenter(0.,0.,0.);// center of far cliping plane in camera coordinate + MT_Scalar F=-1.0, N; // square distance of far and near point to origin + MT_Scalar f, n; // distance of far and near point to z axis. f is always > 0 but n can be < 0 + MT_Scalar e, s; // far and near clipping distance (<0) + MT_Scalar c; // slope of center line = distance of far clipping center to z axis / far clipping distance + MT_Scalar z; // projection of sphere center on z axis (<0) + // tmp value + MT_Vector4 npoint(1., 1., 1., 1.); + MT_Vector4 hpoint; + MT_Point3 point; + MT_Scalar len; + for (int i=0; i<4; i++) + { + hpoint = clip_camcs_matrix*npoint; + point.setValue(hpoint[0]/hpoint[3], hpoint[1]/hpoint[3], hpoint[2]/hpoint[3]); + len = point.dot(point); + if (len > F) + { + nfar = npoint; + farpoint = point; + F = len; + } + // rotate by 90 degree along the z axis to walk through the 4 extreme points of the far clipping plane + len = npoint[0]; + npoint[0] = -npoint[1]; + npoint[1] = len; + farcenter += point; + } + // the far center is the average of the far clipping points + farcenter *= 0.25; + // the extreme near point is the opposite point on the near clipping plane + nfar.setValue(-nfar[0], -nfar[1], -1., 1.); + nfar = clip_camcs_matrix*nfar; + nearpoint.setValue(nfar[0]/nfar[3], nfar[1]/nfar[3], nfar[2]/nfar[3]); + // this is a frustrum projection + N = nearpoint.dot(nearpoint); + e = farpoint[2]; + s = nearpoint[2]; + // projection on XY plane for distance to axis computation + MT_Point2 farxy(farpoint[0], farpoint[1]); + // f is forced positive by construction + f = farxy.length(); + // get corresponding point on the near plane + farxy *= s/e; + // this formula preserve the sign of n + n = f*s/e - MT_Point2(nearpoint[0]-farxy[0], nearpoint[1]-farxy[1]).length(); + c = MT_Point2(farcenter[0], farcenter[1]).length()/e; + // the big formula, it simplifies to (F-N)/(2(e-s)) for the symmetric case + z = (F-N)/(2.0*(e-s+c*(f-n))); + m_frustum_center = MT_Point3(farcenter[0]*z/e, farcenter[1]*z/e, z); + m_frustum_radius = m_frustum_center.distance(farpoint); + } + else + { + // orthographic projection + // The most extreme points on the near and far plane. (normalized device coords) + MT_Vector4 hnear(1., 1., 1., 1.), hfar(-1., -1., -1., 1.); + + // Transform to hom camera local space + hnear = clip_camcs_matrix*hnear; + hfar = clip_camcs_matrix*hfar; + + // Tranform to 3d camera local space. + MT_Point3 nearpoint(hnear[0]/hnear[3], hnear[1]/hnear[3], hnear[2]/hnear[3]); + MT_Point3 farpoint(hfar[0]/hfar[3], hfar[1]/hfar[3], hfar[2]/hfar[3]); + + // just use mediant point + m_frustum_center = (farpoint + nearpoint)*0.5; + m_frustum_radius = m_frustum_center.distance(farpoint); + } // Transform to world space. m_frustum_center = GetCameraToWorld()(m_frustum_center); m_frustum_radius /= fabs(NodeGetWorldScaling()[NodeGetWorldScaling().closestAxis()]); @@ -474,11 +492,16 @@ PyMethodDef KX_Camera::Methods[] = { KX_PYMETHODTABLE_O(KX_Camera, pointInsideFrustum), KX_PYMETHODTABLE_NOARGS(KX_Camera, getCameraToWorld), KX_PYMETHODTABLE_NOARGS(KX_Camera, getWorldToCamera), - KX_PYMETHODTABLE_NOARGS(KX_Camera, getProjectionMatrix), - KX_PYMETHODTABLE_O(KX_Camera, setProjectionMatrix), - KX_PYMETHODTABLE_O(KX_Camera, enableViewport), KX_PYMETHODTABLE(KX_Camera, setViewport), KX_PYMETHODTABLE_NOARGS(KX_Camera, setOnTop), + KX_PYMETHODTABLE_O(KX_Camera, getScreenPosition), + KX_PYMETHODTABLE(KX_Camera, getScreenVect), + KX_PYMETHODTABLE(KX_Camera, getScreenRay), + + // DEPRECATED + KX_PYMETHODTABLE_O(KX_Camera, enableViewport), + KX_PYMETHODTABLE_NOARGS(KX_Camera, getProjectionMatrix), + KX_PYMETHODTABLE_O(KX_Camera, setProjectionMatrix), {NULL,NULL} //Sentinel }; @@ -492,7 +515,9 @@ PyAttributeDef KX_Camera::Attributes[] = { KX_PYATTRIBUTE_RW_FUNCTION("near", KX_Camera, pyattr_get_near, pyattr_set_near), KX_PYATTRIBUTE_RW_FUNCTION("far", KX_Camera, pyattr_get_far, pyattr_set_far), - KX_PYATTRIBUTE_RO_FUNCTION("projection_matrix", KX_Camera, pyattr_get_projection_matrix), + KX_PYATTRIBUTE_RW_FUNCTION("useViewport", KX_Camera, pyattr_get_use_viewport, pyattr_set_use_viewport), + + KX_PYATTRIBUTE_RW_FUNCTION("projection_matrix", KX_Camera, pyattr_get_projection_matrix, pyattr_set_projection_matrix), KX_PYATTRIBUTE_RO_FUNCTION("modelview_matrix", KX_Camera, pyattr_get_modelview_matrix), KX_PYATTRIBUTE_RO_FUNCTION("camera_to_world", KX_Camera, pyattr_get_camera_to_world), KX_PYATTRIBUTE_RO_FUNCTION("world_to_camera", KX_Camera, pyattr_get_world_to_camera), @@ -506,8 +531,13 @@ PyAttributeDef KX_Camera::Attributes[] = { }; PyTypeObject KX_Camera::Type = { - PyObject_HEAD_INIT(NULL) - 0, +#if (PY_VERSION_HEX >= 0x02060000) + PyVarObject_HEAD_INIT(NULL, 0) +#else + /* python 2.5 and below */ + PyObject_HEAD_INIT( NULL ) /* required py macro */ + 0, /* ob_size */ +#endif "KX_Camera", sizeof(PyObjectPlus_Proxy), 0, @@ -544,6 +574,10 @@ PyObject* KX_Camera::py_getattro(PyObject *attr) py_getattro_up(KX_GameObject); } +PyObject* KX_Camera::py_getattro_dict() { + py_getattro_dict_up(KX_GameObject); +} + int KX_Camera::py_setattro(PyObject *attr, PyObject *value) { py_setattro_up(KX_GameObject); @@ -678,6 +712,7 @@ KX_PYMETHODDEF_DOC_NOARGS(KX_Camera, getProjectionMatrix, "\tie: [[1.0, 0.0, 0.0, 0.0], [0.0, 1.0, 0.0, 0.0], [0.0, 0.0, 1.0, 0.0], [0.0, 0.0, 0.0, 1.0]])\n" ) { + ShowDeprecationWarning("getProjectionMatrix()", "the projection_matrix property"); return PyObjectFrom(GetProjectionMatrix()); /* new ref */ } @@ -723,6 +758,8 @@ KX_PYMETHODDEF_DOC_O(KX_Camera, setProjectionMatrix, "\tcam = co.getOwner()\n" "\tcam.setProjectionMatrix(Perspective(-1.0, 1.0, -1.0, 1.0, 0.1, 1))\n") { + ShowDeprecationWarning("setProjectionMatrix(mat)", "the projection_matrix property"); + MT_Matrix4x4 mat; if (!PyMatTo(value, mat)) { @@ -739,8 +776,9 @@ KX_PYMETHODDEF_DOC_O(KX_Camera, enableViewport, "Sets this camera's viewport status\n" ) { - int viewport = PyObject_IsTrue(value); + ShowDeprecationWarning("enableViewport(bool)", "the useViewport property"); + int viewport = PyObject_IsTrue(value); if (viewport == -1) { PyErr_SetString(PyExc_ValueError, "camera.enableViewport(bool): KX_Camera, expected True/False or 0/1"); return NULL; @@ -770,10 +808,7 @@ KX_PYMETHODDEF_DOC_NOARGS(KX_Camera, setOnTop, "setOnTop()\n" "Sets this camera's viewport on top\n") { - class KX_Scene* scene; - - scene = KX_GetActiveScene(); - MT_assert(scene); + class KX_Scene* scene = KX_GetActiveScene(); scene->SetCameraOnTop(this); Py_RETURN_NONE; } @@ -790,11 +825,11 @@ int KX_Camera::pyattr_set_perspective(void *self_v, const KX_PYATTRIBUTE_DEF *at int param = PyObject_IsTrue( value ); if (param == -1) { PyErr_SetString(PyExc_AttributeError, "camera.perspective = bool: KX_Camera, expected True/False or 0/1"); - return -1; + return PY_SET_ATTR_FAIL; } self->m_camdata.m_perspective= param; - return 0; + return PY_SET_ATTR_SUCCESS; } PyObject* KX_Camera::pyattr_get_lens(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) @@ -809,12 +844,12 @@ int KX_Camera::pyattr_set_lens(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef, float param = PyFloat_AsDouble(value); if (param == -1) { PyErr_SetString(PyExc_AttributeError, "camera.lens = float: KX_Camera, expected a float greater then zero"); - return -1; + return PY_SET_ATTR_FAIL; } self->m_camdata.m_lens= param; self->m_set_projection_matrix = false; - return 0; + return PY_SET_ATTR_SUCCESS; } PyObject* KX_Camera::pyattr_get_near(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) @@ -829,12 +864,12 @@ int KX_Camera::pyattr_set_near(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef, float param = PyFloat_AsDouble(value); if (param == -1) { PyErr_SetString(PyExc_AttributeError, "camera.near = float: KX_Camera, expected a float greater then zero"); - return -1; + return PY_SET_ATTR_FAIL; } self->m_camdata.m_clipstart= param; self->m_set_projection_matrix = false; - return 0; + return PY_SET_ATTR_SUCCESS; } PyObject* KX_Camera::pyattr_get_far(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) @@ -849,14 +884,34 @@ int KX_Camera::pyattr_set_far(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef, P float param = PyFloat_AsDouble(value); if (param == -1) { PyErr_SetString(PyExc_AttributeError, "camera.far = float: KX_Camera, expected a float greater then zero"); - return -1; + return PY_SET_ATTR_FAIL; } self->m_camdata.m_clipend= param; self->m_set_projection_matrix = false; - return 0; + return PY_SET_ATTR_SUCCESS; +} + + +PyObject* KX_Camera::pyattr_get_use_viewport(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) +{ + KX_Camera* self= static_cast<KX_Camera*>(self_v); + return PyBool_FromLong(self->GetViewport()); +} + +int KX_Camera::pyattr_set_use_viewport(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef, PyObject *value) +{ + KX_Camera* self= static_cast<KX_Camera*>(self_v); + int param = PyObject_IsTrue( value ); + if (param == -1) { + PyErr_SetString(PyExc_AttributeError, "camera.useViewport = bool: KX_Camera, expected True or False"); + return PY_SET_ATTR_FAIL; + } + self->EnableViewport((bool)param); + return PY_SET_ATTR_SUCCESS; } + PyObject* KX_Camera::pyattr_get_projection_matrix(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) { KX_Camera* self= static_cast<KX_Camera*>(self_v); @@ -868,10 +923,10 @@ int KX_Camera::pyattr_set_projection_matrix(void *self_v, const KX_PYATTRIBUTE_D KX_Camera* self= static_cast<KX_Camera*>(self_v); MT_Matrix4x4 mat; if (!PyMatTo(value, mat)) - return -1; + return PY_SET_ATTR_FAIL; self->SetProjectionMatrix(mat); - return 0; + return PY_SET_ATTR_SUCCESS; } PyObject* KX_Camera::pyattr_get_modelview_matrix(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) @@ -900,3 +955,197 @@ PyObject* KX_Camera::pyattr_get_OUTSIDE(void *self_v, const KX_PYATTRIBUTE_DEF * PyObject* KX_Camera::pyattr_get_INTERSECT(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef) { return PyInt_FromLong(INTERSECT); } + +bool ConvertPythonToCamera(PyObject * value, KX_Camera **object, bool py_none_ok, const char *error_prefix) +{ + if (value==NULL) { + PyErr_Format(PyExc_TypeError, "%s, python pointer NULL, should never happen", error_prefix); + *object = NULL; + return false; + } + + if (value==Py_None) { + *object = NULL; + + if (py_none_ok) { + return true; + } else { + PyErr_Format(PyExc_TypeError, "%s, expected KX_Camera or a KX_Camera name, None is invalid", error_prefix); + return false; + } + } + + if (PyString_Check(value)) { + STR_String value_str = PyString_AsString(value); + *object = KX_GetActiveScene()->FindCamera(value_str); + + if (*object) { + return true; + } else { + PyErr_Format(PyExc_ValueError, "%s, requested name \"%s\" did not match any KX_Camera in this scene", error_prefix, PyString_AsString(value)); + return false; + } + } + + if (PyObject_TypeCheck(value, &KX_Camera::Type)) { + *object = static_cast<KX_Camera*>BGE_PROXY_REF(value); + + /* sets the error */ + if (*object==NULL) { + PyErr_Format(PyExc_SystemError, "%s, " BGE_PROXY_ERROR_MSG, error_prefix); + return false; + } + + return true; + } + + *object = NULL; + + if (py_none_ok) { + PyErr_Format(PyExc_TypeError, "%s, expect a KX_Camera, a string or None", error_prefix); + } else { + PyErr_Format(PyExc_TypeError, "%s, expect a KX_Camera or a string", error_prefix); + } + + return false; +} + +KX_PYMETHODDEF_DOC_O(KX_Camera, getScreenPosition, +"getScreenPosition()\n" +) + +{ + MT_Vector3 vect; + KX_GameObject *obj = NULL; + + if (!PyVecTo(value, vect)) + { + if(ConvertPythonToGameObject(value, &obj, true, "")) + { + PyErr_Clear(); + vect = MT_Vector3(obj->NodeGetWorldPosition()); + } + else + { + PyErr_SetString(PyExc_TypeError, "Error in getScreenPosition. Expected a Vector3 or a KX_GameObject or a string for a name of a KX_GameObject"); + return NULL; + } + } + + GLint viewport[4]; + GLdouble win[3]; + GLdouble modelmatrix[16]; + GLdouble projmatrix[16]; + + MT_Matrix4x4 m_modelmatrix = this->GetModelviewMatrix(); + MT_Matrix4x4 m_projmatrix = this->GetProjectionMatrix(); + + m_modelmatrix.getValue(modelmatrix); + m_projmatrix.getValue(projmatrix); + + glGetIntegerv(GL_VIEWPORT, viewport); + + gluProject(vect[0], vect[1], vect[2], modelmatrix, projmatrix, viewport, &win[0], &win[1], &win[2]); + + vect[0] = (win[0] - viewport[0]) / viewport[2]; + vect[1] = (win[1] - viewport[1]) / viewport[3]; + + vect[1] = 1.0 - vect[1]; //to follow Blender window coordinate system (Top-Down) + + PyObject* ret = PyTuple_New(2); + if(ret){ + PyTuple_SET_ITEM(ret, 0, PyFloat_FromDouble(vect[0])); + PyTuple_SET_ITEM(ret, 1, PyFloat_FromDouble(vect[1])); + return ret; + } + + return NULL; +} + +KX_PYMETHODDEF_DOC_VARARGS(KX_Camera, getScreenVect, +"getScreenVect()\n" +) +{ + double x,y; + if (!PyArg_ParseTuple(args,"dd:getScreenVect",&x,&y)) + return NULL; + + y = 1.0 - y; //to follow Blender window coordinate system (Top-Down) + + MT_Vector3 vect; + MT_Point3 campos, screenpos; + + GLint viewport[4]; + GLdouble win[3]; + GLdouble modelmatrix[16]; + GLdouble projmatrix[16]; + + MT_Matrix4x4 m_modelmatrix = this->GetModelviewMatrix(); + MT_Matrix4x4 m_projmatrix = this->GetProjectionMatrix(); + + m_modelmatrix.getValue(modelmatrix); + m_projmatrix.getValue(projmatrix); + + glGetIntegerv(GL_VIEWPORT, viewport); + + vect[0] = x * viewport[2]; + vect[1] = y * viewport[3]; + + vect[0] += viewport[0]; + vect[1] += viewport[1]; + + glReadPixels(x, y, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &vect[2]); + gluUnProject(vect[0], vect[1], vect[2], modelmatrix, projmatrix, viewport, &win[0], &win[1], &win[2]); + + campos = this->GetCameraLocation(); + screenpos = MT_Point3(win[0], win[1], win[2]); + vect = campos-screenpos; + + vect.normalize(); + return PyObjectFrom(vect); +} + +KX_PYMETHODDEF_DOC_VARARGS(KX_Camera, getScreenRay, +"getScreenRay()\n" +) +{ + MT_Vector3 vect; + double x,y,dist; + char *propName = NULL; + + if (!PyArg_ParseTuple(args,"ddd|s:getScreenRay",&x,&y,&dist,&propName)) + return NULL; + + PyObject* argValue = PyTuple_New(2); + if (argValue) { + PyTuple_SET_ITEM(argValue, 0, PyFloat_FromDouble(x)); + PyTuple_SET_ITEM(argValue, 1, PyFloat_FromDouble(y)); + } + + if(!PyVecTo(PygetScreenVect(argValue), vect)) + { + Py_DECREF(argValue); + PyErr_SetString(PyExc_TypeError, + "Error in getScreenRay. Invalid 2D coordinate. Expected a normalized 2D screen coordinate, a distance and an optional property argument"); + return NULL; + } + Py_DECREF(argValue); + + dist = -dist; + vect += this->GetCameraLocation(); + + argValue = (propName?PyTuple_New(3):PyTuple_New(2)); + if (argValue) { + PyTuple_SET_ITEM(argValue, 0, PyObjectFrom(vect)); + PyTuple_SET_ITEM(argValue, 1, PyFloat_FromDouble(dist)); + if (propName) + PyTuple_SET_ITEM(argValue, 2, PyString_FromString(propName)); + + PyObject* ret= this->PyrayCastTo(argValue,NULL); + Py_DECREF(argValue); + return ret; + } + + return NULL; +} + |