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0001 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> 0002 <HTML 0003 ><HEAD 0004 ><TITLE 0005 >Using Stopmotion with your webcamera</TITLE 0006 ><META 0007 NAME="GENERATOR" 0008 CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK 0009 REL="HOME" 0010 TITLE="Stopmotion user manual" 0011 HREF="index.html"><LINK 0012 REL="PREVIOUS" 0013 TITLE="Running/previewing the animation" 0014 HREF="x88.html"><LINK 0015 REL="NEXT" 0016 TITLE="Changing the import settings" 0017 HREF="x177.html"></HEAD 0018 ><BODY 0019 CLASS="section" 0020 BGCOLOR="#FFFFFF" 0021 TEXT="#000000" 0022 LINK="#0000FF" 0023 VLINK="#840084" 0024 ALINK="#0000FF" 0025 ><DIV 0026 CLASS="NAVHEADER" 0027 ><TABLE 0028 SUMMARY="Header navigation table" 0029 WIDTH="100%" 0030 BORDER="0" 0031 CELLPADDING="0" 0032 CELLSPACING="0" 0033 ><TR 0034 ><TH 0035 COLSPAN="3" 0036 ALIGN="center" 0037 ><SPAN 0038 CLASS="application" 0039 >Stopmotion</SPAN 0040 > user manual</TH 0041 ></TR 0042 ><TR 0043 ><TD 0044 WIDTH="10%" 0045 ALIGN="left" 0046 VALIGN="bottom" 0047 ><A 0048 HREF="x88.html" 0049 ACCESSKEY="P" 0050 >Prev</A 0051 ></TD 0052 ><TD 0053 WIDTH="80%" 0054 ALIGN="center" 0055 VALIGN="bottom" 0056 ></TD 0057 ><TD 0058 WIDTH="10%" 0059 ALIGN="right" 0060 VALIGN="bottom" 0061 ><A 0062 HREF="x177.html" 0063 ACCESSKEY="N" 0064 >Next</A 0065 ></TD 0066 ></TR 0067 ></TABLE 0068 ><HR 0069 ALIGN="LEFT" 0070 WIDTH="100%"></DIV 0071 ><DIV 0072 CLASS="section" 0073 ><H1 0074 CLASS="section" 0075 ><A 0076 NAME="AEN126" 0077 >5. Using Stopmotion with your webcamera</A 0078 ></H1 0079 ><P 0080 > The real value of using Stopmotion lies in working directly 0081 against a webcamera. 0082 </P 0083 ><P 0084 > If you have a webcamera that works on your linux distribution and <SPAN 0085 CLASS="application" 0086 >vgrabbj</SPAN 0087 > installed 0088 you can start the camera by pressing the 0089 <SPAN 0090 CLASS="guiicon" 0091 ><IMG 0092 SRC="icons/cameraon.png"></SPAN 0093 > (<B 0094 CLASS="shortcut" 0095 ><B 0096 CLASS="keycap" 0097 >C</B 0098 ></B 0099 >) 0100 button. 0101 </P 0102 ><P 0103 > If not you can go to the the next section ``Changing the import settings'' to set 0104 up your camera correctly. 0105 <DIV 0106 CLASS="figure" 0107 ><A 0108 NAME="AEN137" 0109 ></A 0110 ><P 0111 ><B 0112 >Figure 4. 0113 The Camera menu 0114 </B 0115 ></P 0116 ><P 0117 ><IMG 0118 SRC="screenshots/camera_running.png"></P 0119 ></DIV 0120 > 0121 </P 0122 ><DIV 0123 CLASS="note" 0124 ><P 0125 ></P 0126 ><TABLE 0127 CLASS="note" 0128 WIDTH="100%" 0129 BORDER="0" 0130 ><TR 0131 ><TD 0132 WIDTH="25" 0133 ALIGN="CENTER" 0134 VALIGN="TOP" 0135 ><IMG 0136 SRC="icons/note.gif" 0137 HSPACE="5" 0138 ALT="Note"></TD 0139 ><TD 0140 ALIGN="LEFT" 0141 VALIGN="TOP" 0142 ><P 0143 > For this to work you have to turn of all other programs 0144 using the webcamera. 0145 </P 0146 ></TD 0147 ></TR 0148 ></TABLE 0149 ></DIV 0150 ><P 0151 > When the camera is on you have three modes for viewing the video. 0152 These modes have different purposes and are there to assist you 0153 in creating your animations. 0154 <P 0155 ></P 0156 ><DIV 0157 CLASS="variablelist" 0158 ><DL 0159 ><DT 0160 >Image mixing/Onionskinning (Shortcut: <B 0161 CLASS="keycap" 0162 >1</B 0163 >)</DT 0164 ><DD 0165 ><P 0166 > The image mixing is probably the view mode 0167 you will be using the most. This mode allows 0168 you to view previous pictures (up to five) on 0169 top of the camera. This way you can position 0170 the figure in relation to the previous frames 0171 so that you can create smooth motions. 0172 <DIV 0173 CLASS="figure" 0174 ><A 0175 NAME="AEN150" 0176 ></A 0177 ><P 0178 ><B 0179 >Figure 5. 0180 The onionskinning/mixing mode 0181 </B 0182 ></P 0183 ><P 0184 ><IMG 0185 SRC="screenshots/mixing.png"></P 0186 ></DIV 0187 > 0188 </P 0189 ><P 0190 > You can change the number of pictures to 0191 view on top of the camera with the ``Number of mixes'' slider 0192 on the camera panel. 0193 </P 0194 ></DD 0195 ><DT 0196 >Image differentiation (Shortcut: <B 0197 CLASS="keycap" 0198 >2</B 0199 >)</DT 0200 ><DD 0201 ><P 0202 > The image differentiation mode is primarily meant 0203 as a tool for moving the figure back to a previous 0204 position. 0205 </P 0206 ><P 0207 > It displays the difference between the selected frame and the camera. 0208 This way if an object in front off the camera has been 0209 involountairly moved (fallen, etc) you can use the 0210 differentiation mode, together with the image mixing, to 0211 move the object back to its previous position. 0212 </P 0213 ><P 0214 > This can be done by 0215 moving the figure until the picture is black, which 0216 means the selected frame and the camera are ``equal''. 0217 <DIV 0218 CLASS="figure" 0219 ><A 0220 NAME="AEN162" 0221 ></A 0222 ><P 0223 ><B 0224 >Figure 6. 0225 The differentiation mode 0226 </B 0227 ></P 0228 ><P 0229 ><IMG 0230 SRC="screenshots/differentiation.png"></P 0231 ></DIV 0232 > 0233 </P 0234 ></DD 0235 ><DT 0236 >Playback (Shortcut: <B 0237 CLASS="keycap" 0238 >3</B 0239 >)</DT 0240 ><DD 0241 ><P 0242 > The playback mode will continuously run the the already recorded frames as 0243 an animation with the input from the camera as the final frame. 0244 </P 0245 ><P 0246 > This way you can see the camera input, which will become the next frame, together 0247 with the previous frames as an animation. 0248 </P 0249 ><DIV 0250 CLASS="figure" 0251 ><A 0252 NAME="AEN172" 0253 ></A 0254 ><P 0255 ><B 0256 >Figure 7. 0257 The playback mode 0258 </B 0259 ></P 0260 ><P 0261 ><IMG 0262 SRC="screenshots/playback.png"></P 0263 ></DIV 0264 ><P 0265 > You can specify how many frame backwards that should be played (up to 50) with 0266 the ``Number of images'' slider on the camera panel, and you can set how fast 0267 they should played with the FPS chooser on the preview panel. 0268 </P 0269 ></DD 0270 ></DL 0271 ></DIV 0272 > 0273 </P 0274 ></DIV 0275 ><DIV 0276 CLASS="NAVFOOTER" 0277 ><HR 0278 ALIGN="LEFT" 0279 WIDTH="100%"><TABLE 0280 SUMMARY="Footer navigation table" 0281 WIDTH="100%" 0282 BORDER="0" 0283 CELLPADDING="0" 0284 CELLSPACING="0" 0285 ><TR 0286 ><TD 0287 WIDTH="33%" 0288 ALIGN="left" 0289 VALIGN="top" 0290 ><A 0291 HREF="x88.html" 0292 ACCESSKEY="P" 0293 >Prev</A 0294 ></TD 0295 ><TD 0296 WIDTH="34%" 0297 ALIGN="center" 0298 VALIGN="top" 0299 ><A 0300 HREF="index.html" 0301 ACCESSKEY="H" 0302 >Home</A 0303 ></TD 0304 ><TD 0305 WIDTH="33%" 0306 ALIGN="right" 0307 VALIGN="top" 0308 ><A 0309 HREF="x177.html" 0310 ACCESSKEY="N" 0311 >Next</A 0312 ></TD 0313 ></TR 0314 ><TR 0315 ><TD 0316 WIDTH="33%" 0317 ALIGN="left" 0318 VALIGN="top" 0319 >Running/previewing the animation</TD 0320 ><TD 0321 WIDTH="34%" 0322 ALIGN="center" 0323 VALIGN="top" 0324 > </TD 0325 ><TD 0326 WIDTH="33%" 0327 ALIGN="right" 0328 VALIGN="top" 0329 >Changing the import settings</TD 0330 ></TR 0331 ></TABLE 0332 ></DIV 0333 ></BODY 0334 ></HTML 0335 >