diff options
| author | Zolnai Tamás <tamas.zolnai@collabora.com> | 2014-07-03 16:26:44 +0200 |
|---|---|---|
| committer | Zolnai Tamás <tamas.zolnai@collabora.com> | 2014-07-03 16:28:20 +0200 |
| commit | 9a670eb493f3760eb398c3f9d2296d979b608f95 (patch) | |
| tree | f61c645d4913a24493f988afd53f8407e46560d0 /avmedia | |
| parent | 0b3a918860944878b5fc4cf87883889bc467a052 (diff) | |
glTF: constraine camera move in orbit mode
Not to get too close to / too far from the model.
Too close means move into the model.
Change-Id: Ie25d87c88093d4baaf98f13ab8239263b5e1bf66
Diffstat (limited to 'avmedia')
| -rw-r--r-- | avmedia/source/opengl/oglwindow.cxx | 17 | ||||
| -rw-r--r-- | avmedia/source/opengl/oglwindow.hxx | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/avmedia/source/opengl/oglwindow.cxx b/avmedia/source/opengl/oglwindow.cxx index f45468e3981c..b3b177782950 100644 --- a/avmedia/source/opengl/oglwindow.cxx +++ b/avmedia/source/opengl/oglwindow.cxx @@ -21,6 +21,7 @@ OGLWindow::OGLWindow( glTFHandle& rHandle, OpenGLContext& rContext, Window& rEve , m_bVisible ( false ) , m_aLastMousePos(Point()) , m_bIsOrbitMode( false ) + , m_fCameraDistance(0.0) { } @@ -261,6 +262,16 @@ IMPL_LINK(OGLWindow, CameraHandler, VclWindowEvent*, pEvent) if(nCode == KEY_A)vMoveBy -= vStrafe*(0.0005f*fModelSize); if(nCode == KEY_D)vMoveBy += vStrafe*(0.0005f*fModelSize); } + else + { + // Limit zooming in orbit mode + m_fCameraDistance += vMoveBy.z; + if (m_fCameraDistance < 0.75 * fModelSize || m_fCameraDistance > 2 * fModelSize) + { + m_fCameraDistance -= vMoveBy.z; + vMoveBy = glm::vec3(0.0); + } + } } gltf_renderer_move_camera(&m_rHandle, vMoveBy.x, vMoveBy.y, vMoveBy.z, 0.0); } @@ -275,6 +286,12 @@ IMPL_LINK(OGLWindow, CameraHandler, VclWindowEvent*, pEvent) { gltf_orbit_mode_start(&m_rHandle); m_bIsOrbitMode = true; + // Set default camera distance + glm::vec3 vEye; + glm::vec3 vView; + glm::vec3 vUp; + gltf_get_camera_pos(&m_rHandle, &vEye,&vView,&vUp); + m_fCameraDistance = vEye.z - gltf_get_model_center_pos(&m_rHandle)->z; } } else if(nCode == KEY_F) diff --git a/avmedia/source/opengl/oglwindow.hxx b/avmedia/source/opengl/oglwindow.hxx index b4b1390b67ae..68b1ed8b84ad 100644 --- a/avmedia/source/opengl/oglwindow.hxx +++ b/avmedia/source/opengl/oglwindow.hxx @@ -68,9 +68,11 @@ private: glTFHandle& m_rHandle; OpenGLContext& m_rContext; Window& m_rEventHandler; + bool m_bVisible; Point m_aLastMousePos; bool m_bIsOrbitMode; + double m_fCameraDistance; }; } // namespace ogl |