1 | <!-- ******************************************************** --> |
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2 | <!-- --> |
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3 | <!-- [History] --> |
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4 | <!-- Converted to DocBook: Katsuya Amako, Aug-2006 --> |
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5 | <!-- Updates for Qt: Laurent Garnier, Dec-2008 --> |
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6 | <!-- --> |
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7 | <!-- ******************************************************** --> |
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8 | |
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9 | |
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10 | <!-- ******************* Section (Level#1) ****************** --> |
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11 | <sect1 id="sect.MkMovie"> |
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12 | <title> |
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13 | Making a Movie |
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14 | </title> |
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15 | |
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16 | <para> |
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17 | These instructions are suggestive only. The following procedures |
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18 | have not been tested on all platforms. There are clearly some |
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19 | instructions that apply only to Unix-like systems with an X-Windows |
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20 | based windowing system. However, it should not be difficult to take |
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21 | the ideas presented here and extend them to other platforms and |
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22 | systems. |
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23 | </para> |
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24 | |
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25 | <para> |
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26 | The procedures described here need graphics drivers that |
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27 | can produce picture files that can be converted to a form suitable |
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28 | for an MPEG encoder. There may be other ways of capturing the |
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29 | screen images and we would be happy to hear about them. Graphics |
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30 | drivers currently capable of producing picture files are: |
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31 | |
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32 | <ulink url="http://bmrc.berkeley.edu/frame/research/mpeg/mpeg_encode.html">More informations about MPEG encoder</ulink> |
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33 | |
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34 | <informaltable> |
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35 | <tgroup cols="2"> |
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36 | <tbody> |
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37 | <row> |
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38 | <entry> |
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39 | <emphasis role="bold">Driver</emphasis> |
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40 | </entry> |
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41 | <entry> |
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42 | <emphasis role="bold">File type</emphasis> |
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43 | </entry> |
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44 | </row> |
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45 | <row> |
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46 | <entry> |
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47 | DAWNFILE |
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48 | </entry> |
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49 | <entry> |
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50 | prim then eps using <emphasis role="bold">dawn</emphasis> |
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51 | </entry> |
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52 | </row> |
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53 | <row> |
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54 | <entry> |
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55 | HepRepFile |
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56 | </entry> |
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57 | <entry> |
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58 | HepRep1 |
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59 | </entry> |
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60 | </row> |
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61 | <row> |
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62 | <entry> |
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63 | HepRep |
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64 | </entry> |
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65 | <entry> |
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66 | HepRep2 |
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67 | </entry> |
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68 | </row> |
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69 | <row> |
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70 | <entry> |
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71 | OGLX |
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72 | </entry> |
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73 | <entry> |
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74 | eps |
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75 | </entry> |
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76 | </row> |
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77 | <row> |
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78 | <entry> |
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79 | Qt |
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80 | </entry> |
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81 | <entry> |
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82 | jpeg, eps, ppm, ... |
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83 | </entry> |
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84 | </row> |
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85 | <row> |
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86 | <entry> |
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87 | RayTracer |
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88 | </entry> |
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89 | <entry> |
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90 | jpeg |
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91 | </entry> |
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92 | </row> |
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93 | <row> |
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94 | <entry> |
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95 | VRMLFILE |
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96 | </entry> |
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97 | <entry> |
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98 | vrml |
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99 | </entry> |
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100 | </row> |
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101 | </tbody> |
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102 | </tgroup> |
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103 | </informaltable> |
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104 | </para> |
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105 | |
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106 | <para> |
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107 | So far, only DAWNFILE, OGLX and RayTracer have been "road tested". |
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108 | Once in a standard format, such as eps, the |
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109 | <emphasis role="bold">convert</emphasis> program from |
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110 | <ulink url="http://www.imagemagick.org"> |
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111 | ImageMagick |
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112 | </ulink> |
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113 | can convert to ppm files suitable for |
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114 | <emphasis role="bold">mpeg2encode</emphasis>. |
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115 | </para> |
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116 | |
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117 | |
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118 | <!-- ******************* Section (Level#2) ****************** --> |
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119 | <sect2 id="sect.MkMovie.OGLX"> |
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120 | <title> |
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121 | OGLX |
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122 | </title> |
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123 | |
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124 | <para> |
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125 | Make a macro something like this: |
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126 | |
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127 | <informalexample> |
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128 | <programlisting> |
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129 | /control/verbose 2 |
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130 | /vis/open OGLSX 600x600-0+0 |
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131 | /vis/drawVolume |
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132 | /vis/viewer/reset |
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133 | /vis/viewer/set/style surface |
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134 | /vis/viewer/set/projection perspective 50 deg |
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135 | /control/alias phi 30 |
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136 | /control/loop movie.loop theta 0 360 1 |
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137 | </programlisting> |
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138 | </informalexample> |
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139 | |
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140 | which invokes movie.loop, which is something like: |
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141 | |
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142 | <informalexample> |
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143 | <programlisting> |
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144 | /vis/viewer/set/viewpointThetaPhi {theta} {phi} |
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145 | /vis/viewer/zoom 1.005 |
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146 | /vis/ogl/printEPS |
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147 | </programlisting> |
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148 | </informalexample> |
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149 | </para> |
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150 | |
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151 | <para> |
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152 | This produces lots of eps files. Then... |
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153 | |
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154 | <informalexample> |
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155 | <programlisting> |
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156 | <ulink url="./make_mpeg2encode_parfile.sh">make_mpeg2encode_parfile.sh</ulink> G4OpenGL_*eps |
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157 | </programlisting> |
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158 | </informalexample> |
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159 | </para> |
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160 | |
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161 | <para> |
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162 | Then edit mpeg2encode.par to specify file type and size, etc.: |
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163 | |
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164 | <informalexample> |
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165 | <programlisting> |
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166 | $ diff mpeg2encode.par~ mpeg2encode.par |
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167 | 7c7 |
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168 | < 1 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */ |
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169 | --- |
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170 | > 2 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */ |
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171 | 15,17c15,17 |
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172 | < /* horizontal_size */ |
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173 | < /* vertical_size */ |
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174 | < 8 /* aspect_ratio_information 1=square pel, 2=4:3, 3=16:9, 4=2.11:1 */ |
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175 | --- |
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176 | > 600 /* horizontal_size */ |
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177 | > 600 /* vertical_size */ |
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178 | > 1 /* aspect_ratio_information 1=square pel, 2=4:3, 3=16:9, 4=2.11:1 */ |
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179 | </programlisting> |
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180 | </informalexample> |
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181 | </para> |
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182 | |
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183 | <para> |
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184 | Then convert to ppm: |
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185 | |
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186 | <informalexample> |
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187 | <programlisting> |
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188 | for i in G4OpenGL*eps; |
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189 | do j=`basename $i .eps`; command="convert $i $j.ppm"; echo $command; $command; done |
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190 | </programlisting> |
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191 | </informalexample> |
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192 | </para> |
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193 | |
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194 | <para> |
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195 | Then |
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196 | |
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197 | <informalexample> |
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198 | <programlisting> |
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199 | mpeg2encode mpeg2encode.par G4OpenGL.mpg |
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200 | </programlisting> |
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201 | </informalexample> |
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202 | </para> |
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203 | |
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204 | <para> |
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205 | Then, on Mac, for example: |
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206 | |
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207 | <informalexample> |
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208 | <programlisting> |
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209 | open G4OpenGL.mpg |
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210 | </programlisting> |
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211 | </informalexample> |
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212 | |
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213 | opens a QuickTime player. |
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214 | </para> |
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215 | |
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216 | </sect2> |
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217 | |
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218 | <!-- ******************* Section (Level#2) ****************** --> |
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219 | <sect2 id="sect.MkMovie.Qt"> |
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220 | <title> |
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221 | Qt |
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222 | </title> |
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223 | |
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224 | <para> |
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225 | The Qt driver provides one of the easiest ways to make a movie. |
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226 | Of course, you first need to add the Qt libraries and link with Qt, |
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227 | but once you have that, Qt provides a ready-made function to store all updates of the OpenGL |
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228 | frame into the movie format. |
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229 | You then use loops (as defined in OGLX section above) or even move/rotate/zoom you scene |
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230 | by mouse actions to form your movie. |
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231 | </para> |
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232 | <para> |
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233 | The Qt driver automatically handles all of the movie-making steps described in the OGLX section of this document - storing the files, converting them and assembling the finished movie. |
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234 | You just have to take care of installing an mpeg_encoder. |
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235 | </para> |
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236 | <para> |
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237 | To make a movie : |
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238 | <itemizedlist spacing="compact"> |
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239 | <listitem><para> |
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240 | Right click to display a context menu, "Action"->"Movie parameters". |
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241 | </para></listitem> |
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242 | <listitem><para> |
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243 | Select MPEG encoder path if it was not found. |
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244 | </para></listitem> |
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245 | <listitem><para> |
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246 | Select the name of the output movie. |
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247 | </para></listitem> |
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248 | <listitem><para> |
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249 | Let go! Hit SPACE to Start/Pause recording, RETURN to STOP |
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250 | </para></listitem> |
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251 | </itemizedlist> |
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252 | </para> |
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253 | <para> |
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254 | Then, open your movie (on Mac, for example): |
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255 | |
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256 | <informalexample> |
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257 | <programlisting> |
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258 | open G4OpenGL.mpg |
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259 | </programlisting> |
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260 | </informalexample> |
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261 | |
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262 | opens a QuickTime player. |
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263 | </para> |
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264 | |
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265 | </sect2> |
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266 | |
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267 | |
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268 | <!-- ******************* Section (Level#2) ****************** --> |
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269 | <sect2 id="sect.MkMovie.DAWNFILE"> |
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270 | <title> |
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271 | DAWNFILE |
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272 | </title> |
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273 | |
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274 | <para> |
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275 | You need to invoke <emphasis role="bold">dawn</emphasis> in "direct" mode, |
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276 | which picks up parameters from .DAWN_1.history, and suppress the GUI: |
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277 | |
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278 | <informalexample> |
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279 | <programlisting> |
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280 | alias dawn='dawn -d' |
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281 | export DAWN_BATCH=1 |
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282 | </programlisting> |
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283 | </informalexample> |
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284 | </para> |
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285 | |
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286 | <para> |
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287 | Change OGLSX to DAWNFILE in the above set of Geant4 commands and |
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288 | run. Then convert to ppm files as above: |
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289 | |
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290 | <informalexample> |
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291 | <programlisting> |
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292 | for i in g4_*.eps; |
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293 | do j=`basename $i .eps`; command="convert $i $j.ppm"; echo $command; $command; done |
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294 | </programlisting> |
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295 | </informalexample> |
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296 | </para> |
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297 | |
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298 | <para> |
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299 | Then make a .par file: |
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300 | |
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301 | <informalexample> |
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302 | <programlisting> |
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303 | <ulink url="./make_mpeg2encode_parfile.sh">make_mpeg2encode_parfile.sh</ulink> g4_*ppm |
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304 | </programlisting> |
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305 | </informalexample> |
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306 | |
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307 | and edit mpeg2encode.par: |
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308 | |
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309 | <informalexample> |
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310 | <programlisting> |
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311 | $ diff mpeg2encode.par~ mpeg2encode.par |
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312 | 7c7 |
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313 | < 1 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */ |
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314 | --- |
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315 | > 2 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */ |
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316 | 9c9 |
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317 | < 1 /* number of first frame */ |
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318 | --- |
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319 | > 0 /* number of first frame */ |
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320 | 15,16c15,16 |
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321 | < /* horizontal_size */ |
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322 | < /* vertical_size */ |
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323 | --- |
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324 | > 482 /* horizontal_size */ |
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325 | > 730 /* vertical_size */ |
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326 | </programlisting> |
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327 | </informalexample> |
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328 | </para> |
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329 | |
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330 | <para> |
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331 | Then encode and play: |
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332 | |
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333 | <informalexample> |
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334 | <programlisting> |
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335 | mpeg2encode mpeg2encode.par DAWN.mpg |
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336 | open DAWN.mpg |
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337 | </programlisting> |
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338 | </informalexample> |
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339 | </para> |
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340 | |
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341 | </sect2> |
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342 | |
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343 | |
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344 | <!-- ******************* Section (Level#2) ****************** --> |
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345 | <sect2 id="sect.MkMovie.RyTrcX"> |
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346 | <title> |
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347 | RayTracerX |
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348 | </title> |
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349 | |
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350 | <para> |
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351 | <informalexample> |
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352 | <programlisting> |
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353 | /control/verbose 2 |
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354 | /vis/open RayTracerX 600x600-0+0 |
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355 | # (Raytracer doesn't need a scene; smoother not to /vis/drawVolume.) |
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356 | /vis/viewer/reset |
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357 | /vis/viewer/set/style surface |
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358 | /vis/viewer/set/projection perspective 50 deg |
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359 | /control/alias phi 30 |
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360 | /control/loop movie.loop theta 0 360 1 |
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361 | </programlisting> |
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362 | </informalexample> |
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363 | |
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364 | where movie.loop is as above. This produces lots of jpeg files (but |
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365 | takes 3 days!!!). Then... |
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366 | |
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367 | <informalexample> |
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368 | <programlisting> |
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369 | <ulink url="./make_mpeg2encode_parfile.sh">make_mpeg2encode_parfile.sh</ulink> g4RayTracer*jpeg |
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370 | </programlisting> |
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371 | </informalexample> |
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372 | </para> |
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373 | |
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374 | <para> |
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375 | Then edit mpeg2encode.par to specify file type and size, etc.: |
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376 | |
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377 | <informalexample> |
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378 | <programlisting> |
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379 | $ diff mpeg2encode.par.orig mpeg2encode.par |
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380 | 7c7 |
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381 | < 1 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */ |
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382 | --- |
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383 | > 2 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */ |
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384 | 15,17c15,17 |
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385 | < /* horizontal_size */ |
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386 | < /* vertical_size */ |
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387 | < 8 /* aspect_ratio_information 1=square pel, 2=4:3, 3=16:9, 4=2.11:1 */ |
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388 | --- |
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389 | > 600 /* horizontal_size */ |
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390 | > 600 /* vertical_size */ |
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391 | > 1 /* aspect_ratio_information 1=square pel, 2=4:3, 3=16:9, 4=2.11:1 */ |
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392 | </programlisting> |
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393 | </informalexample> |
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394 | </para> |
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395 | |
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396 | <para> |
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397 | |
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398 | Then convert to ppm, encode and play: |
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399 | |
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400 | <informalexample> |
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401 | <programlisting> |
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402 | for i in g4*jpeg; |
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403 | do j=`basename $i .jpeg`; command="convert $i $j.ppm"; echo $command; $command; done |
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404 | mpeg2encode mpeg2encode.par g4RayTracer.mpg |
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405 | open g4RayTracer.mpg |
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406 | </programlisting> |
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407 | </informalexample> |
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408 | </para> |
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409 | |
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410 | |
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411 | </sect2> |
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412 | </sect1> |
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