cdec2b3d15
Use 'const char *' rather then the C++ 'STR_String' type for the attribute identifier of python attributes. Each attribute and method access from python was allocating and freeing the string. A simple test with getting an attribute a loop shows this speeds up attribute lookups a bit over 2x.
868 lines
23 KiB
C++
868 lines
23 KiB
C++
/*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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* Camera in the gameengine. Cameras are also used for views.
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*/
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#include "KX_Camera.h"
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#include "KX_Scene.h"
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#include "KX_PythonInit.h"
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#include "KX_Python.h"
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#include "KX_PyMath.h"
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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KX_Camera::KX_Camera(void* sgReplicationInfo,
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SG_Callbacks callbacks,
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const RAS_CameraData& camdata,
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bool frustum_culling,
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PyTypeObject *T)
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:
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KX_GameObject(sgReplicationInfo,callbacks,T),
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m_camdata(camdata),
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m_dirty(true),
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m_normalized(false),
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m_frustum_culling(frustum_culling && camdata.m_perspective),
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m_set_projection_matrix(false),
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m_set_frustum_center(false)
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{
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// setting a name would be nice...
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m_name = "cam";
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m_projection_matrix.setIdentity();
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m_modelview_matrix.setIdentity();
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CValue* val = new CIntValue(1);
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SetProperty("camera",val);
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val->Release();
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}
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KX_Camera::~KX_Camera()
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{
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}
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CValue* KX_Camera::GetReplica()
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{
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KX_Camera* replica = new KX_Camera(*this);
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// this will copy properties and so on...
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CValue::AddDataToReplica(replica);
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ProcessReplica(replica);
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return replica;
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}
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void KX_Camera::ProcessReplica(KX_Camera* replica)
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{
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KX_GameObject::ProcessReplica(replica);
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}
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MT_Transform KX_Camera::GetWorldToCamera() const
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{
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MT_Transform camtrans;
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camtrans.invert(MT_Transform(NodeGetWorldPosition(), NodeGetWorldOrientation()));
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return camtrans;
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}
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MT_Transform KX_Camera::GetCameraToWorld() const
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{
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return MT_Transform(NodeGetWorldPosition(), NodeGetWorldOrientation());
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}
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void KX_Camera::CorrectLookUp(MT_Scalar speed)
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{
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}
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const MT_Point3 KX_Camera::GetCameraLocation() const
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{
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/* this is the camera locatio in cam coords... */
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//return m_trans1.getOrigin();
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//return MT_Point3(0,0,0); <-----
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/* .... I want it in world coords */
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//MT_Transform trans;
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//trans.setBasis(NodeGetWorldOrientation());
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return NodeGetWorldPosition();
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}
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/* I want the camera orientation as well. */
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const MT_Quaternion KX_Camera::GetCameraOrientation() const
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{
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return NodeGetWorldOrientation().getRotation();
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}
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/**
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* Sets the projection matrix that is used by the rasterizer.
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*/
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void KX_Camera::SetProjectionMatrix(const MT_Matrix4x4 & mat)
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{
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m_projection_matrix = mat;
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m_dirty = true;
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m_set_projection_matrix = true;
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m_set_frustum_center = false;
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}
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/**
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* Sets the modelview matrix that is used by the rasterizer.
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*/
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void KX_Camera::SetModelviewMatrix(const MT_Matrix4x4 & mat)
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{
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m_modelview_matrix = mat;
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m_dirty = true;
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m_set_frustum_center = false;
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}
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/**
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* Gets the projection matrix that is used by the rasterizer.
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*/
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const MT_Matrix4x4& KX_Camera::GetProjectionMatrix() const
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{
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return m_projection_matrix;
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}
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/**
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* Gets the modelview matrix that is used by the rasterizer.
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*/
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const MT_Matrix4x4& KX_Camera::GetModelviewMatrix() const
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{
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return m_modelview_matrix;
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}
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bool KX_Camera::hasValidProjectionMatrix() const
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{
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return m_set_projection_matrix;
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}
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void KX_Camera::InvalidateProjectionMatrix(bool valid)
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{
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m_set_projection_matrix = valid;
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}
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/*
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* These getters retrieve the clip data and the focal length
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*/
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float KX_Camera::GetLens() const
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{
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return m_camdata.m_lens;
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}
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float KX_Camera::GetCameraNear() const
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{
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return m_camdata.m_clipstart;
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}
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float KX_Camera::GetCameraFar() const
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{
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return m_camdata.m_clipend;
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}
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float KX_Camera::GetFocalLength() const
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{
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return m_camdata.m_focallength;
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}
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RAS_CameraData* KX_Camera::GetCameraData()
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{
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return &m_camdata;
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}
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void KX_Camera::ExtractClipPlanes()
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{
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if (!m_dirty)
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return;
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MT_Matrix4x4 m = m_projection_matrix * m_modelview_matrix;
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// Left clip plane
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m_planes[0] = m[3] + m[0];
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// Right clip plane
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m_planes[1] = m[3] - m[0];
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// Top clip plane
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m_planes[2] = m[3] - m[1];
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// Bottom clip plane
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m_planes[3] = m[3] + m[1];
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// Near clip plane
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m_planes[4] = m[3] + m[2];
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// Far clip plane
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m_planes[5] = m[3] - m[2];
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m_dirty = false;
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m_normalized = false;
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}
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void KX_Camera::NormalizeClipPlanes()
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{
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if (m_normalized)
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return;
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for (unsigned int p = 0; p < 6; p++)
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{
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MT_Scalar factor = sqrt(m_planes[p][0]*m_planes[p][0] + m_planes[p][1]*m_planes[p][1] + m_planes[p][2]*m_planes[p][2]);
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if (!MT_fuzzyZero(factor))
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m_planes[p] /= factor;
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}
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m_normalized = true;
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}
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void KX_Camera::ExtractFrustumSphere()
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{
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if (m_set_frustum_center)
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return;
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// compute sphere for the general case and not only symmetric frustum:
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// the mirror code in ImageRender can use very asymmetric frustum.
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// We will put the sphere center on the line that goes from origin to the center of the far clipping plane
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// This is the optimal position if the frustum is symmetric or very asymmetric and probably close
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// to optimal for the general case. The sphere center position is computed so that the distance to
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// the near and far extreme frustum points are equal.
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// get the transformation matrix from device coordinate to camera coordinate
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MT_Matrix4x4 clip_camcs_matrix = m_projection_matrix;
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clip_camcs_matrix.invert();
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// detect which of the corner of the far clipping plane is the farthest to the origin
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MT_Vector4 nfar; // far point in device normalized coordinate
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MT_Point3 farpoint; // most extreme far point in camera coordinate
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MT_Point3 nearpoint;// most extreme near point in camera coordinate
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MT_Point3 farcenter(0.,0.,0.);// center of far cliping plane in camera coordinate
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MT_Scalar F=1.0, N; // square distance of far and near point to origin
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MT_Scalar f, n; // distance of far and near point to z axis. f is always > 0 but n can be < 0
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MT_Scalar e, s; // far and near clipping distance (<0)
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MT_Scalar c; // slope of center line = distance of far clipping center to z axis / far clipping distance
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MT_Scalar z; // projection of sphere center on z axis (<0)
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// tmp value
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MT_Vector4 npoint(1., 1., 1., 1.);
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MT_Vector4 hpoint;
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MT_Point3 point;
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MT_Scalar len;
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for (int i=0; i<4; i++)
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{
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hpoint = clip_camcs_matrix*npoint;
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point.setValue(hpoint[0]/hpoint[3], hpoint[1]/hpoint[3], hpoint[2]/hpoint[3]);
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len = point.dot(point);
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if (len > F)
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{
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nfar = npoint;
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farpoint = point;
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F = len;
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}
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// rotate by 90 degree along the z axis to walk through the 4 extreme points of the far clipping plane
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len = npoint[0];
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npoint[0] = -npoint[1];
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npoint[1] = len;
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farcenter += point;
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}
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// the far center is the average of the far clipping points
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farcenter *= 0.25;
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// the extreme near point is the opposite point on the near clipping plane
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nfar.setValue(-nfar[0], -nfar[1], -1., 1.);
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nfar = clip_camcs_matrix*nfar;
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nearpoint.setValue(nfar[0]/nfar[3], nfar[1]/nfar[3], nfar[2]/nfar[3]);
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N = nearpoint.dot(nearpoint);
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e = farpoint[2];
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s = nearpoint[2];
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// projection on XY plane for distance to axis computation
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MT_Point2 farxy(farpoint[0], farpoint[1]);
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// f is forced positive by construction
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f = farxy.length();
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// get corresponding point on the near plane
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farxy *= s/e;
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// this formula preserve the sign of n
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n = f*s/e - MT_Point2(nearpoint[0]-farxy[0], nearpoint[1]-farxy[1]).length();
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c = MT_Point2(farcenter[0], farcenter[1]).length()/e;
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// the big formula, it simplifies to (F-N)/(2(e-s)) for the symmetric case
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z = (F-N)/(2.0*(e-s+c*(f-n)));
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m_frustum_center = MT_Point3(farcenter[0]*z/e, farcenter[1]*z/e, z);
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m_frustum_radius = m_frustum_center.distance(farpoint);
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#if 0
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// The most extreme points on the near and far plane. (normalized device coords)
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MT_Vector4 hnear(1., 1., 0., 1.), hfar(1., 1., 1., 1.);
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// Transform to hom camera local space
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hnear = clip_camcs_matrix*hnear;
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hfar = clip_camcs_matrix*hfar;
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// Tranform to 3d camera local space.
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MT_Point3 nearpoint(hnear[0]/hnear[3], hnear[1]/hnear[3], hnear[2]/hnear[3]);
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MT_Point3 farpoint(hfar[0]/hfar[3], hfar[1]/hfar[3], hfar[2]/hfar[3]);
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// Compute center
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// don't use camera data in case the user specifies the matrix directly
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m_frustum_center = MT_Point3(0., 0.,
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(nearpoint.dot(nearpoint) - farpoint.dot(farpoint))/(2.0*(nearpoint[2]-farpoint[2] /*m_camdata.m_clipend - m_camdata.m_clipstart*/)));
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m_frustum_radius = m_frustum_center.distance(farpoint);
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#endif
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// Transform to world space.
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m_frustum_center = GetCameraToWorld()(m_frustum_center);
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m_frustum_radius /= fabs(NodeGetWorldScaling()[NodeGetWorldScaling().closestAxis()]);
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m_set_frustum_center = true;
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}
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bool KX_Camera::PointInsideFrustum(const MT_Point3& x)
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{
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ExtractClipPlanes();
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for( unsigned int i = 0; i < 6 ; i++ )
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{
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if (m_planes[i][0]*x[0] + m_planes[i][1]*x[1] + m_planes[i][2]*x[2] + m_planes[i][3] < 0.)
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return false;
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}
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return true;
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}
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int KX_Camera::BoxInsideFrustum(const MT_Point3 *box)
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{
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ExtractClipPlanes();
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unsigned int insideCount = 0;
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// 6 view frustum planes
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for( unsigned int p = 0; p < 6 ; p++ )
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{
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unsigned int behindCount = 0;
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// 8 box verticies.
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for (unsigned int v = 0; v < 8 ; v++)
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{
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if (m_planes[p][0]*box[v][0] + m_planes[p][1]*box[v][1] + m_planes[p][2]*box[v][2] + m_planes[p][3] < 0.)
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behindCount++;
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}
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// 8 points behind this plane
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if (behindCount == 8)
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return OUTSIDE;
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// Every box vertex is on the front side of this plane
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if (!behindCount)
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insideCount++;
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}
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// All box verticies are on the front side of all frustum planes.
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if (insideCount == 6)
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return INSIDE;
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return INTERSECT;
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}
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int KX_Camera::SphereInsideFrustum(const MT_Point3& center, const MT_Scalar &radius)
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{
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ExtractFrustumSphere();
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if (center.distance2(m_frustum_center) > (radius + m_frustum_radius)*(radius + m_frustum_radius))
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return OUTSIDE;
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unsigned int p;
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ExtractClipPlanes();
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NormalizeClipPlanes();
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MT_Scalar distance;
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int intersect = INSIDE;
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// distance: <-------- OUTSIDE -----|----- INTERSECT -----0----- INTERSECT -----|----- INSIDE -------->
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// -radius radius
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for (p = 0; p < 6; p++)
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{
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distance = m_planes[p][0]*center[0] + m_planes[p][1]*center[1] + m_planes[p][2]*center[2] + m_planes[p][3];
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if (fabs(distance) <= radius)
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intersect = INTERSECT;
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else if (distance < -radius)
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return OUTSIDE;
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}
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return intersect;
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}
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bool KX_Camera::GetFrustumCulling() const
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{
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return m_frustum_culling;
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}
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void KX_Camera::EnableViewport(bool viewport)
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{
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m_camdata.m_viewport = viewport;
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}
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void KX_Camera::SetViewport(int left, int bottom, int right, int top)
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{
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m_camdata.m_viewportleft = left;
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m_camdata.m_viewportbottom = bottom;
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m_camdata.m_viewportright = right;
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m_camdata.m_viewporttop = top;
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}
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bool KX_Camera::GetViewport() const
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{
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return m_camdata.m_viewport;
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}
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int KX_Camera::GetViewportLeft() const
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{
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return m_camdata.m_viewportleft;
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}
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int KX_Camera::GetViewportBottom() const
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{
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return m_camdata.m_viewportbottom;
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}
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int KX_Camera::GetViewportRight() const
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{
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return m_camdata.m_viewportright;
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}
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int KX_Camera::GetViewportTop() const
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{
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return m_camdata.m_viewporttop;
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}
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//----------------------------------------------------------------------------
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//Python
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PyMethodDef KX_Camera::Methods[] = {
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KX_PYMETHODTABLE(KX_Camera, sphereInsideFrustum),
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KX_PYMETHODTABLE(KX_Camera, boxInsideFrustum),
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KX_PYMETHODTABLE(KX_Camera, pointInsideFrustum),
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KX_PYMETHODTABLE(KX_Camera, getCameraToWorld),
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KX_PYMETHODTABLE(KX_Camera, getWorldToCamera),
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KX_PYMETHODTABLE(KX_Camera, getProjectionMatrix),
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KX_PYMETHODTABLE(KX_Camera, setProjectionMatrix),
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KX_PYMETHODTABLE(KX_Camera, enableViewport),
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KX_PYMETHODTABLE(KX_Camera, setViewport),
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KX_PYMETHODTABLE(KX_Camera, setOnTop),
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{NULL,NULL} //Sentinel
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};
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char KX_Camera::doc[] = "Module KX_Camera\n\n"
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"Constants:\n"
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"\tINSIDE\n"
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"\tINTERSECT\n"
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"\tOUTSIDE\n"
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"Attributes:\n"
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"\tlens -> float\n"
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"\t\tThe camera's lens value\n"
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"\tnear -> float\n"
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"\t\tThe camera's near clip distance\n"
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"\tfar -> float\n"
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"\t\tThe camera's far clip distance\n"
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"\tfrustum_culling -> bool\n"
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"\t\tNon zero if this camera is frustum culling.\n"
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"\tprojection_matrix -> [[float]]\n"
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"\t\tThis camera's projection matrix.\n"
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"\tmodelview_matrix -> [[float]] (read only)\n"
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"\t\tThis camera's model view matrix.\n"
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"\t\tRegenerated every frame from the camera's position and orientation.\n"
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"\tcamera_to_world -> [[float]] (read only)\n"
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"\t\tThis camera's camera to world transform.\n"
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"\t\tRegenerated every frame from the camera's position and orientation.\n"
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"\tworld_to_camera -> [[float]] (read only)\n"
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"\t\tThis camera's world to camera transform.\n"
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"\t\tRegenerated every frame from the camera's position and orientation.\n"
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"\t\tThis is camera_to_world inverted.\n";
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PyTypeObject KX_Camera::Type = {
|
|
PyObject_HEAD_INIT(&PyType_Type)
|
|
0,
|
|
"KX_Camera",
|
|
sizeof(KX_Camera),
|
|
0,
|
|
PyDestructor,
|
|
0,
|
|
__getattr,
|
|
__setattr,
|
|
0, //&MyPyCompare,
|
|
__repr,
|
|
0, //&cvalue_as_number,
|
|
0,
|
|
0,
|
|
0,
|
|
0, 0, 0, 0, 0, 0,
|
|
doc
|
|
};
|
|
|
|
PyParentObject KX_Camera::Parents[] = {
|
|
&KX_Camera::Type,
|
|
&KX_GameObject::Type,
|
|
&SCA_IObject::Type,
|
|
&CValue::Type,
|
|
NULL
|
|
};
|
|
|
|
PyObject* KX_Camera::_getattr(const char *attr)
|
|
{
|
|
if (!strcmp(attr, "INSIDE"))
|
|
return PyInt_FromLong(INSIDE); /* new ref */
|
|
if (!strcmp(attr, "OUTSIDE"))
|
|
return PyInt_FromLong(OUTSIDE); /* new ref */
|
|
if (!strcmp(attr, "INTERSECT"))
|
|
return PyInt_FromLong(INTERSECT); /* new ref */
|
|
|
|
if (!strcmp(attr, "lens"))
|
|
return PyFloat_FromDouble(GetLens()); /* new ref */
|
|
if (!strcmp(attr, "near"))
|
|
return PyFloat_FromDouble(GetCameraNear()); /* new ref */
|
|
if (!strcmp(attr, "far"))
|
|
return PyFloat_FromDouble(GetCameraFar()); /* new ref */
|
|
if (!strcmp(attr, "frustum_culling"))
|
|
return PyInt_FromLong(m_frustum_culling); /* new ref */
|
|
if (!strcmp(attr, "perspective"))
|
|
return PyInt_FromLong(m_camdata.m_perspective); /* new ref */
|
|
if (!strcmp(attr, "projection_matrix"))
|
|
return PyObjectFrom(GetProjectionMatrix()); /* new ref */
|
|
if (!strcmp(attr, "modelview_matrix"))
|
|
return PyObjectFrom(GetModelviewMatrix()); /* new ref */
|
|
if (!strcmp(attr, "camera_to_world"))
|
|
return PyObjectFrom(GetCameraToWorld()); /* new ref */
|
|
if (!strcmp(attr, "world_to_camera"))
|
|
return PyObjectFrom(GetWorldToCamera()); /* new ref */
|
|
|
|
_getattr_up(KX_GameObject);
|
|
}
|
|
|
|
int KX_Camera::_setattr(const char *attr, PyObject *pyvalue)
|
|
{
|
|
if (PyInt_Check(pyvalue))
|
|
{
|
|
if (!strcmp(attr, "frustum_culling"))
|
|
{
|
|
m_frustum_culling = PyInt_AsLong(pyvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(attr, "perspective"))
|
|
{
|
|
m_camdata.m_perspective = PyInt_AsLong(pyvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (PyFloat_Check(pyvalue))
|
|
{
|
|
if (!strcmp(attr, "lens"))
|
|
{
|
|
m_camdata.m_lens = PyFloat_AsDouble(pyvalue);
|
|
m_set_projection_matrix = false;
|
|
return 0;
|
|
}
|
|
if (!strcmp(attr, "near"))
|
|
{
|
|
m_camdata.m_clipstart = PyFloat_AsDouble(pyvalue);
|
|
m_set_projection_matrix = false;
|
|
return 0;
|
|
}
|
|
if (!strcmp(attr, "far"))
|
|
{
|
|
m_camdata.m_clipend = PyFloat_AsDouble(pyvalue);
|
|
m_set_projection_matrix = false;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (PyObject_IsMT_Matrix(pyvalue, 4))
|
|
{
|
|
if (!strcmp(attr, "projection_matrix"))
|
|
{
|
|
MT_Matrix4x4 mat;
|
|
if (PyMatTo(pyvalue, mat))
|
|
{
|
|
SetProjectionMatrix(mat);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
return KX_GameObject::_setattr(attr, pyvalue);
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, sphereInsideFrustum,
|
|
"sphereInsideFrustum(center, radius) -> Integer\n"
|
|
"\treturns INSIDE, OUTSIDE or INTERSECT if the given sphere is\n"
|
|
"\tinside/outside/intersects this camera's viewing frustum.\n\n"
|
|
"\tcenter = the center of the sphere (in world coordinates.)\n"
|
|
"\tradius = the radius of the sphere\n\n"
|
|
"\tExample:\n"
|
|
"\timport GameLogic\n\n"
|
|
"\tco = GameLogic.getCurrentController()\n"
|
|
"\tcam = co.GetOwner()\n\n"
|
|
"\t# A sphere of radius 4.0 located at [x, y, z] = [1.0, 1.0, 1.0]\n"
|
|
"\tif (cam.sphereInsideFrustum([1.0, 1.0, 1.0], 4) != cam.OUTSIDE):\n"
|
|
"\t\t# Sphere is inside frustum !\n"
|
|
"\t\t# Do something useful !\n"
|
|
"\telse:\n"
|
|
"\t\t# Sphere is outside frustum\n"
|
|
)
|
|
{
|
|
PyObject *pycenter;
|
|
float radius;
|
|
if (PyArg_ParseTuple(args, "Of", &pycenter, &radius))
|
|
{
|
|
MT_Point3 center;
|
|
if (PyVecTo(pycenter, center))
|
|
{
|
|
return PyInt_FromLong(SphereInsideFrustum(center, radius)); /* new ref */
|
|
}
|
|
}
|
|
|
|
PyErr_SetString(PyExc_TypeError, "sphereInsideFrustum: Expected arguments: (center, radius)");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, boxInsideFrustum,
|
|
"boxInsideFrustum(box) -> Integer\n"
|
|
"\treturns INSIDE, OUTSIDE or INTERSECT if the given box is\n"
|
|
"\tinside/outside/intersects this camera's viewing frustum.\n\n"
|
|
"\tbox = a list of the eight (8) corners of the box (in world coordinates.)\n\n"
|
|
"\tExample:\n"
|
|
"\timport GameLogic\n\n"
|
|
"\tco = GameLogic.getCurrentController()\n"
|
|
"\tcam = co.GetOwner()\n\n"
|
|
"\tbox = []\n"
|
|
"\tbox.append([-1.0, -1.0, -1.0])\n"
|
|
"\tbox.append([-1.0, -1.0, 1.0])\n"
|
|
"\tbox.append([-1.0, 1.0, -1.0])\n"
|
|
"\tbox.append([-1.0, 1.0, 1.0])\n"
|
|
"\tbox.append([ 1.0, -1.0, -1.0])\n"
|
|
"\tbox.append([ 1.0, -1.0, 1.0])\n"
|
|
"\tbox.append([ 1.0, 1.0, -1.0])\n"
|
|
"\tbox.append([ 1.0, 1.0, 1.0])\n\n"
|
|
"\tif (cam.boxInsideFrustum(box) != cam.OUTSIDE):\n"
|
|
"\t\t# Box is inside/intersects frustum !\n"
|
|
"\t\t# Do something useful !\n"
|
|
"\telse:\n"
|
|
"\t\t# Box is outside the frustum !\n"
|
|
)
|
|
{
|
|
PyObject *pybox;
|
|
if (PyArg_ParseTuple(args, "O", &pybox))
|
|
{
|
|
unsigned int num_points = PySequence_Size(pybox);
|
|
if (num_points != 8)
|
|
{
|
|
PyErr_Format(PyExc_TypeError, "boxInsideFrustum: Expected eight (8) points, got %d", num_points);
|
|
return NULL;
|
|
}
|
|
|
|
MT_Point3 box[8];
|
|
for (unsigned int p = 0; p < 8 ; p++)
|
|
{
|
|
PyObject *item = PySequence_GetItem(pybox, p); /* new ref */
|
|
bool error = !PyVecTo(item, box[p]);
|
|
Py_DECREF(item);
|
|
if (error)
|
|
return NULL;
|
|
}
|
|
|
|
return PyInt_FromLong(BoxInsideFrustum(box)); /* new ref */
|
|
}
|
|
|
|
PyErr_SetString(PyExc_TypeError, "boxInsideFrustum: Expected argument: list of points.");
|
|
return NULL;
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, pointInsideFrustum,
|
|
"pointInsideFrustum(point) -> Bool\n"
|
|
"\treturns 1 if the given point is inside this camera's viewing frustum.\n\n"
|
|
"\tpoint = The point to test (in world coordinates.)\n\n"
|
|
"\tExample:\n"
|
|
"\timport GameLogic\n\n"
|
|
"\tco = GameLogic.getCurrentController()\n"
|
|
"\tcam = co.GetOwner()\n\n"
|
|
"\t# Test point [0.0, 0.0, 0.0]"
|
|
"\tif (cam.pointInsideFrustum([0.0, 0.0, 0.0])):\n"
|
|
"\t\t# Point is inside frustum !\n"
|
|
"\t\t# Do something useful !\n"
|
|
"\telse:\n"
|
|
"\t\t# Box is outside the frustum !\n"
|
|
)
|
|
{
|
|
MT_Point3 point;
|
|
if (PyVecArgTo(args, point))
|
|
{
|
|
return PyInt_FromLong(PointInsideFrustum(point)); /* new ref */
|
|
}
|
|
|
|
PyErr_SetString(PyExc_TypeError, "pointInsideFrustum: Expected point argument.");
|
|
return NULL;
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, getCameraToWorld,
|
|
"getCameraToWorld() -> Matrix4x4\n"
|
|
"\treturns the camera to world transformation matrix, as a list of four lists of four values.\n\n"
|
|
"\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"
|
|
)
|
|
{
|
|
return PyObjectFrom(GetCameraToWorld()); /* new ref */
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, getWorldToCamera,
|
|
"getWorldToCamera() -> Matrix4x4\n"
|
|
"\treturns the world to camera transformation matrix, as a list of four lists of four values.\n\n"
|
|
"\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"
|
|
)
|
|
{
|
|
return PyObjectFrom(GetWorldToCamera()); /* new ref */
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, getProjectionMatrix,
|
|
"getProjectionMatrix() -> Matrix4x4\n"
|
|
"\treturns this camera's projection matrix, as a list of four lists of four values.\n\n"
|
|
"\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"
|
|
)
|
|
{
|
|
return PyObjectFrom(GetProjectionMatrix()); /* new ref */
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, setProjectionMatrix,
|
|
"setProjectionMatrix(MT_Matrix4x4 m) -> None\n"
|
|
"\tSets this camera's projection matrix\n"
|
|
"\n"
|
|
"\tExample:\n"
|
|
"\timport GameLogic\n"
|
|
"\t# Set a perspective projection matrix\n"
|
|
"\tdef Perspective(left, right, bottom, top, near, far):\n"
|
|
"\t\tm = MT_Matrix4x4()\n"
|
|
"\t\tm[0][0] = m[0][2] = right - left\n"
|
|
"\t\tm[1][1] = m[1][2] = top - bottom\n"
|
|
"\t\tm[2][2] = m[2][3] = -far - near\n"
|
|
"\t\tm[3][2] = -1\n"
|
|
"\t\tm[3][3] = 0\n"
|
|
"\t\treturn m\n"
|
|
"\n"
|
|
"\t# Set an orthographic projection matrix\n"
|
|
"\tdef Orthographic(left, right, bottom, top, near, far):\n"
|
|
"\t\tm = MT_Matrix4x4()\n"
|
|
"\t\tm[0][0] = right - left\n"
|
|
"\t\tm[0][3] = -right - left\n"
|
|
"\t\tm[1][1] = top - bottom\n"
|
|
"\t\tm[1][3] = -top - bottom\n"
|
|
"\t\tm[2][2] = far - near\n"
|
|
"\t\tm[2][3] = -far - near\n"
|
|
"\t\tm[3][3] = 1\n"
|
|
"\t\treturn m\n"
|
|
"\n"
|
|
"\t# Set an isometric projection matrix\n"
|
|
"\tdef Isometric(left, right, bottom, top, near, far):\n"
|
|
"\t\tm = MT_Matrix4x4()\n"
|
|
"\t\tm[0][0] = m[0][2] = m[1][1] = 0.8660254037844386\n"
|
|
"\t\tm[1][0] = 0.25\n"
|
|
"\t\tm[1][2] = -0.25\n"
|
|
"\t\tm[3][3] = 1\n"
|
|
"\t\treturn m\n"
|
|
"\n"
|
|
"\t"
|
|
"\tco = GameLogic.getCurrentController()\n"
|
|
"\tcam = co.getOwner()\n"
|
|
"\tcam.setProjectionMatrix(Perspective(-1.0, 1.0, -1.0, 1.0, 0.1, 1))\n")
|
|
{
|
|
PyObject *pymat;
|
|
if (PyArg_ParseTuple(args, "O", &pymat))
|
|
{
|
|
MT_Matrix4x4 mat;
|
|
if (PyMatTo(pymat, mat))
|
|
{
|
|
SetProjectionMatrix(mat);
|
|
Py_Return;
|
|
}
|
|
}
|
|
|
|
PyErr_SetString(PyExc_TypeError, "setProjectionMatrix: Expected 4x4 list as matrix argument.");
|
|
return NULL;
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, enableViewport,
|
|
"enableViewport(viewport)\n"
|
|
"Sets this camera's viewport status\n"
|
|
)
|
|
{
|
|
int viewport;
|
|
if (PyArg_ParseTuple(args,"i",&viewport))
|
|
{
|
|
if(viewport)
|
|
EnableViewport(true);
|
|
else
|
|
EnableViewport(false);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
|
|
Py_Return;
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, setViewport,
|
|
"setViewport(left, bottom, right, top)\n"
|
|
"Sets this camera's viewport\n")
|
|
{
|
|
int left, bottom, right, top;
|
|
if (PyArg_ParseTuple(args,"iiii",&left, &bottom, &right, &top))
|
|
{
|
|
SetViewport(left, bottom, right, top);
|
|
} else {
|
|
return NULL;
|
|
}
|
|
Py_Return;
|
|
}
|
|
|
|
KX_PYMETHODDEF_DOC(KX_Camera, setOnTop,
|
|
"setOnTop()\n"
|
|
"Sets this camera's viewport on top\n")
|
|
{
|
|
class KX_Scene* scene;
|
|
|
|
scene = KX_GetActiveScene();
|
|
MT_assert(scene);
|
|
scene->SetCameraOnTop(this);
|
|
Py_Return;
|
|
}
|