1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<HTML>
<HEAD>
<TITLE>nevrax.org : docs</TITLE>
<LINK REL=stylesheet TYPE="text/css" HREF="/inc/css/nevrax.css">
<link href="doxygen.css" rel="stylesheet" type="text/css">
</HEAD>
<BODY MARGINHEIGHT="0" MARGINWIDTH="0">
<!-- uplinks -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF='/'><b>Home</B></FONT></A> </TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF='/'><b>nevrax.com</B></FONT></A> </TD>
</TR>
</TABLE>
<!-- banner Nevrax -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 WIDTH=100%>
<TR><TD BGCOLOR="#000000" BACKGROUND="/inc/img/black_banner.jpg"><A HREF=""><IMG SRC="/inc/img/nevrax.gif" WIDTH="170" HEIGHT="45" BORDER=0 ALT="Nevrax" ></A></TD></TR>
</TABLE>
<!-- main table -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 height=100%>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="10" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd VALIGN=TOP ALIGN=middle><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!------ Begin Box ------>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 BGCOLOR=black><TR><TD><TABLE border=0 cellspacing=2 cellpadding=0 width=120><tr><TD ALIGN=middle bgcolor=black>
<FONT COLOR=white FACE="sans-serif"><B>Nevrax.org</B></FONT></TD></TR><tr><td colspan=2 bgcolor=#FFFFFF>
<TABLE cellspacing=0 cellpadding=1 border=0>
<tr><td ALIGN=middle><a class='linkbox' href="/news/" TITLE="Rubrique news"><img width=13 height=15 hspace=5 border=0 src=/inc/img/picto-news.gif ALT=#></A></td><td><a class='linkbox' href="/news/" TITLE="News">News</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/mail/" TITLE="Rubrique mail"><img width=15 height=11 hspace=5 border=0 src=/inc/img/picto-mail.gif ALT=#></A></td><td><a class='linkbox' href="/mail/" TITLE="Mailing list archive">Mailing-list</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/docs/" TITLE="Rubrique docs"><img width=14 height=16 hspace=5 border=0 src=/inc/img/picto-docs.gif ALT=#></A></td><td><a class='linkbox' href="/docs/" TITLE="Documentation">Documentation</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/cvs/" TITLE="Rubrique cvs"><img width=13 height=17 hspace=5 border=0 src=/inc/img/picto-cvs.gif ALT=#></A></td><td><a class='linkbox' href="/cvs/" TITLE="CVS Web">CVS</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/bugs/" TITLE="Rubrique bugs"><img width=20 height=16 hspace=5 border=0 src=/inc/img/picto-bugs.gif ALT=#></A></td><td><a class='linkbox' href="/bugs/" TITLE="Bugtracking">Bugs</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/GPL.php3" TITLE="Rubrique license"><img width=18 height=12 hspace=5 border=0 src=/inc/img/picto-gpl.gif ALT=#></A></td><td><a class='linkbox' href="/GPL.php3" TITLE="License">License</a></td></tr>
</TABLE>
</TD></TR></TABLE></TD></TR></TABLE>
<!------ End Box ------>
</TD>
<TD WIDTH=15><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD ALIGN=left valign=top><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!-- title -->
<TABLE background="/inc/img/redline.gif" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td>
<A HREF="/docs/"><img src="/inc/img/t_docs.gif" ALT="Docs" HEIGHT=20 BORDER=0></A>
</td><td><IMG SRC="/inc/img/pixel.gif" WIDTH="1" HEIGHT="1" BORDER=0 ALT="">
</td></tr></table>
<!-- block -->
<TABLE bgcolor="#dddddd" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD>
<TD><B>Documentation</B></TD>
<TD ALIGN=RIGHT> </td>
</tr></table>
<!-- Generated by Doxygen 1.2.14 -->
<center>
<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> </center>
<hr><h1>mesh_blender.cpp</h1><a href="mesh__blender_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000-2002 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="mesh__blender_8h.html">3d/mesh_blender.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font>
00031
00032
00033 <font class="keyword">namespace </font>NL3D {
00034
00035
00036 <font class="comment">// ***************************************************************************</font>
<a name="l00037"></a><a class="code" href="classNL3D_1_1CMeshBlender.html#a1">00037</a> <font class="keywordtype">void</font> CMeshBlender::prepareRenderForGlobalAlpha(CMaterial &material, IDriver *drv, <font class="keywordtype">float</font> globalAlpha, uint8 globalAlphaInt, <font class="keywordtype">bool</font> gaDisableZWrite)
00038 {
00039 <font class="comment">// Disable ZWrite??</font>
00040 <font class="keywordflow">if</font>(gaDisableZWrite)
00041 {
00042 <font class="comment">// Backup and set new the zwrite</font>
00043 <a class="code" href="classNL3D_1_1CMeshBlender.html#o1">_BkZWrite</a>=material.getZWrite ();
00044 material.setZWrite (<font class="keyword">false</font>);
00045 }
00046
00047 <font class="comment">// Backup blend</font>
00048 <a class="code" href="classNL3D_1_1CMeshBlender.html#o2">_BkBlend</a>=material.getBlend ();
00049 material.setBlend (<font class="keyword">true</font>);
00050
00051 <font class="comment">// Backup opacity and blend</font>
00052 <a class="code" href="classNL3D_1_1CMeshBlender.html#o0">_BkOpacity</a>= material.getOpacity ();
00053 <a class="code" href="classNL3D_1_1CMeshBlender.html#o3">_BkSrcBlend</a>= material.getSrcBlend();
00054 <a class="code" href="classNL3D_1_1CMeshBlender.html#o4">_BkDstBlend</a>= material.getDstBlend();
00055
00056 <font class="comment">// 2 ways: if Blend Constant Color is supported or not.</font>
00057 <font class="keywordflow">if</font>(drv->supportBlendConstantColor())
00058 {
00059 <font class="comment">// Set opacity to 255 => If AlphaTest is used, AlphaTexture will be multiplied by 1.</font>
00060 material.setOpacity ( 255 );
00061
00062 <font class="comment">// set the Blend constant Alpha.</font>
00063 drv->setBlendConstantColor( CRGBA(0,0,0, globalAlphaInt) );
00064
00065 <font class="comment">// Active Blend with Blend Constant Alpha .</font>
00066 material.setSrcBlend(CMaterial::blendConstantAlpha);
00067
00068 <font class="comment">// Don't set dest if we are in additive blend mode</font>
00069 <font class="keywordflow">if</font> ((<a class="code" href="classNL3D_1_1CMeshBlender.html#o2">_BkBlend</a> == <font class="keyword">false</font>) || (<a class="code" href="classNL3D_1_1CMeshBlender.html#o4">_BkDstBlend</a> != CMaterial::one))
00070 material.setDstBlend(CMaterial::blendConstantInvAlpha);
00071
00072 <font class="comment">// if material is Alpha Test, no-op. Keep same threshold, since Use Alpha of the BlendConstantColor</font>
00073 <font class="comment">// to do the alpha-blending.</font>
00074 }
00075 <font class="comment">// not supported, ugly way: modify Opacity, and alpha threshold</font>
00076 <font class="keywordflow">else</font>
00077 {
00078 <font class="comment">// New opacity</font>
00079 material.setOpacity (globalAlphaInt);
00080
00081 <font class="comment">// must ensure Std Blend.</font>
00082 material.setSrcBlend(CMaterial::srcalpha);
00083
00084 <font class="comment">// Don't set dest if we are in additive blend mode</font>
00085 <font class="keywordflow">if</font> ((<a class="code" href="classNL3D_1_1CMeshBlender.html#o2">_BkBlend</a> == <font class="keyword">false</font>) || (<a class="code" href="classNL3D_1_1CMeshBlender.html#o4">_BkDstBlend</a> != CMaterial::one))
00086 material.setDstBlend(CMaterial::invsrcalpha);
00087
00088 <font class="comment">// if material is Alpha Test, must modulate AlphaTest limit to avoid Pop effects</font>
00089 <font class="keywordflow">if</font>(material.getAlphaTest())
00090 {
00091 <a class="code" href="classNL3D_1_1CMeshBlender.html#o5">_BkAlphaTestThreshold</a>= material.getAlphaTestThreshold();
00092 material.setAlphaTestThreshold(<a class="code" href="classNL3D_1_1CMeshBlender.html#o5">_BkAlphaTestThreshold</a> * globalAlpha);
00093 }
00094 }
00095
00096 }
00097
00098 <font class="comment">// ***************************************************************************</font>
<a name="l00099"></a><a class="code" href="classNL3D_1_1CMeshBlender.html#a2">00099</a> <font class="keywordtype">void</font> CMeshBlender::restoreRender(CMaterial &material, IDriver *drv, <font class="keywordtype">bool</font> gaDisableZWrite)
00100 {
00101 <font class="comment">// Resetup backuped zwrite</font>
00102 <font class="keywordflow">if</font>(gaDisableZWrite)
00103 {
00104 material.setZWrite (<a class="code" href="classNL3D_1_1CMeshBlender.html#o1">_BkZWrite</a>);
00105 }
00106
00107 <font class="comment">// Resetup backuped blend</font>
00108 material.setBlend (<a class="code" href="classNL3D_1_1CMeshBlender.html#o2">_BkBlend</a>);
00109
00110 <font class="comment">// Resetup backuped opacity and blend factors</font>
00111 material.setOpacity (<a class="code" href="classNL3D_1_1CMeshBlender.html#o0">_BkOpacity</a>);
00112 material.setSrcBlend(<a class="code" href="classNL3D_1_1CMeshBlender.html#o3">_BkSrcBlend</a>);
00113 material.setDstBlend(<a class="code" href="classNL3D_1_1CMeshBlender.html#o4">_BkDstBlend</a>);
00114
00115 <font class="comment">// 2 ways: if Blend Constant Color is supported or not.</font>
00116 <font class="keywordflow">if</font>(drv->supportBlendConstantColor())
00117 {
00118 <font class="comment">// nop</font>
00119 }
00120 <font class="keywordflow">else</font>
00121 {
00122 <font class="comment">// Resetup backuped AlphaTest threshold</font>
00123 <font class="keywordflow">if</font>(material.getAlphaTest())
00124 {
00125 material.setAlphaTestThreshold(<a class="code" href="classNL3D_1_1CMeshBlender.html#o5">_BkAlphaTestThreshold</a>);
00126 }
00127 }
00128 }
00129
00130
00131 <font class="comment">// ***************************************************************************</font>
<a name="l00132"></a><a class="code" href="classNL3D_1_1CMeshBlender.html#a3">00132</a> <font class="keywordtype">void</font> CMeshBlender::prepareRenderForGlobalAlphaCoarseMesh(CMaterial &material, IDriver *drv, <a class="code" href="classNLMISC_1_1CRGBA.html">NLMISC::CRGBA</a> color, <font class="keywordtype">float</font> globalAlpha, <font class="keywordtype">bool</font> gaDisableZWrite)
00133 {
00134 <font class="comment">// Don't need to bkup some values, because CoarseMesh.</font>
00135
00136 uint8 globalAlphaInt= (uint8)<a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(255 * globalAlpha);
00137
00138 <font class="comment">// Disable ZWrite??</font>
00139 <font class="keywordflow">if</font>(gaDisableZWrite)
00140 material.setZWrite (<font class="keyword">false</font>);
00141 <font class="comment">// Enable blend</font>
00142 material.setBlend (<font class="keyword">true</font>);
00143
00144 <font class="comment">// bkup color and blend factors.</font>
00145 <a class="code" href="classNL3D_1_1CMeshBlender.html#o6">_BkupColor</a>= material.getColor();
00146 <a class="code" href="classNL3D_1_1CMeshBlender.html#o3">_BkSrcBlend</a>= material.getSrcBlend();
00147 <a class="code" href="classNL3D_1_1CMeshBlender.html#o4">_BkDstBlend</a>= material.getDstBlend();
00148
00149 <font class="comment">// 2 ways: if Blend Constant Color is supported or not.</font>
00150 <font class="keywordflow">if</font>(drv->supportBlendConstantColor())
00151 {
00152 <font class="comment">// Set opacity to 255 => AlphaTexture will be multiplied by 1.</font>
00153 color.<a class="code" href="classNLMISC_1_1CRGBA.html#m3">A</a>= 255;
00154 <font class="comment">// change color</font>
00155 material.setColor ( color );
00156
00157 <font class="comment">// set the Blend constant Alpha.</font>
00158 drv->setBlendConstantColor( CRGBA(0,0,0, globalAlphaInt) );
00159
00160 <font class="comment">// Active Blend with Blend Constant Alpha .</font>
00161 material.setSrcBlend(CMaterial::blendConstantAlpha);
00162 material.setDstBlend(CMaterial::blendConstantInvAlpha);
00163 }
00164 <font class="keywordflow">else</font>
00165 {
00166 <font class="comment">// Set current Alpha blend transparency (in color becausematerial is unlit)</font>
00167 color.<a class="code" href="classNLMISC_1_1CRGBA.html#m3">A</a>= globalAlphaInt;
00168 <font class="comment">// change color</font>
00169 material.setColor ( color );
00170
00171 <font class="comment">// Active Blend with Blend Constant Alpha .</font>
00172 material.setSrcBlend(CMaterial::srcalpha);
00173 material.setDstBlend(CMaterial::invsrcalpha);
00174
00175 <font class="comment">// must modulate AlphaTest limit to avoid Pop effects</font>
00176 material.setAlphaTestThreshold(0.5f * globalAlpha);
00177 }
00178 }
00179
00180 <font class="comment">// ***************************************************************************</font>
<a name="l00181"></a><a class="code" href="classNL3D_1_1CMeshBlender.html#a4">00181</a> <font class="keywordtype">void</font> CMeshBlender::restoreRenderCoarseMesh(CMaterial &material, IDriver *drv, <font class="keywordtype">bool</font> gaDisableZWrite)
00182 {
00183 <font class="comment">// Resetup backuped color and blend factors</font>
00184 material.setColor ( <a class="code" href="classNL3D_1_1CMeshBlender.html#o6">_BkupColor</a> );
00185 material.setSrcBlend(<a class="code" href="classNL3D_1_1CMeshBlender.html#o3">_BkSrcBlend</a>);
00186 material.setDstBlend(<a class="code" href="classNL3D_1_1CMeshBlender.html#o4">_BkDstBlend</a>);
00187
00188 <font class="comment">// ReEnable ZWrite??</font>
00189 <font class="keywordflow">if</font>(gaDisableZWrite)
00190 material.setZWrite (<font class="keyword">true</font>);
00191 <font class="comment">// Reset blend</font>
00192 material.setBlend (<font class="keyword">false</font>);
00193
00194 <font class="comment">// 2 ways: if Blend Constant Color is supported or not.</font>
00195 <font class="keywordflow">if</font>(drv->supportBlendConstantColor())
00196 {
00197 <font class="comment">// nop</font>
00198 }
00199 <font class="keywordflow">else</font>
00200 {
00201 <font class="comment">// reset AlphaTest limit</font>
00202 material.setAlphaTestThreshold(0.5f);
00203 }
00204 }
00205
00206 } <font class="comment">// NL3D</font>
</pre></div>
<!-- footer -->
<BR><FONT Size=+5> </FONT>
</TD>
<TD WIDTH=15><IMG SRC=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD>
</TR>
</TABLE>
</BODY>
</HTML>
|
