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| author | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
|---|---|---|
| committer | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
| commit | 0ea5fc66924303d1bf73ba283a383e2aadee02f2 (patch) | |
| tree | 2568e71a7ccc44ec23b8bb3f0ff97fb6bf2ed709 /docs/doxygen/nel/motion__blur_8cpp-source.html | |
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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>motion_blur.cpp</h1><a href="motion__blur_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 +00007 <font class="comment">/* Copyright, 2000, 2001 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="common_8h.html">nel/misc/common.h</a>"</font> +00029 <font class="preprocessor">#include "<a class="code" href="motion__blur_8h.html">3d/motion_blur.h</a>"</font> +00030 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font> +00031 <font class="preprocessor">#include "<a class="code" href="texture_8h.html">3d/texture.h</a>"</font> +00032 <font class="preprocessor">#include "<a class="code" href="texture__blank_8h.html">3d/texture_blank.h</a>"</font> +00033 <font class="preprocessor">#include "<a class="code" href="material_8h.html">3d/material.h</a>"</font> +00034 +00035 +00036 <font class="keyword">namespace </font>NL3D { +00037 +00038 +<a name="l00039"></a><a class="code" href="classNL3D_1_1CMotionBlur.html#a0">00039</a> CMotionBlur::CMotionBlur() : _Tex(NULL), _X(0), _Y(0), _W(0), _H(0) +00040 { +00041 } +00042 +00043 +00044 +<a name="l00045"></a><a class="code" href="classNL3D_1_1CMotionBlur.html#a1">00045</a> <font class="keywordtype">void</font> CMotionBlur::startMotionBlur(uint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, uint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, uint <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, uint <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>) +00046 { +00047 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a> > 0 && <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> > 0) ; +00048 <a class="code" href="classNL3D_1_1CMotionBlur.html#n1">_X</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> ; +00049 <a class="code" href="classNL3D_1_1CMotionBlur.html#n2">_Y</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> ; +00050 <a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a> ; +00051 <a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> ; +00052 <a class="code" href="classNL3D_1_1CMotionBlur.html#n0">_Tex</a> = <font class="keyword">new</font> CTextureBlank ; +00053 <a class="code" href="classNL3D_1_1CMotionBlur.html#n0">_Tex</a>->resize(NLMISC::raiseToNextPowerOf2(<a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>), NLMISC::raiseToNextPowerOf2(<a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>)) ; +00054 } +00055 +<a name="l00056"></a><a class="code" href="classNL3D_1_1CMotionBlur.html#a2">00056</a> <font class="keywordtype">void</font> CMotionBlur::releaseMotionBlur() +00057 { +00058 <a class="code" href="classNL3D_1_1CMotionBlur.html#n0">_Tex</a> = NULL ; +00059 <a class="code" href="classNL3D_1_1CMotionBlur.html#n1">_X</a> = <a class="code" href="classNL3D_1_1CMotionBlur.html#n2">_Y</a> = <a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a> = <a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a> = 0 ; +00060 } +00061 +<a name="l00062"></a><a class="code" href="classNL3D_1_1CMotionBlur.html#a3">00062</a> <font class="keywordtype">void</font> CMotionBlur::performMotionBlur(IDriver *driver, <font class="keywordtype">float</font> motionBlurAmount) +00063 { +00064 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CMotionBlur.html#n0">_Tex</a>) ; <font class="comment">//start motion blur has not been called !!</font> +00065 <a class="code" href="debug_8h.html#a6">nlassert</a>(driver) ; +00066 <a class="code" href="debug_8h.html#a6">nlassert</a>(motionBlurAmount >= 0.f && motionBlurAmount <= 1.f) ; +00067 +00068 <font class="keyword">static</font> CVertexBuffer vb ; +00069 vb.setVertexFormat(CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag ) ; +00070 vb.setNumVertices(4) ; +00071 +00072 uint32 <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> ; +00073 driver->getWindowSize(<a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>) ; +00074 +00075 <font class="keywordtype">float</font> widthRatio = <a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a> / (float) <a class="code" href="namespaceNLMISC.html#a223">NLMISC::raiseToNextPowerOf2</a> (<a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a>) ; +00076 <font class="keywordtype">float</font> heightRatio = <a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a> / (float) <a class="code" href="namespaceNLMISC.html#a223">NLMISC::raiseToNextPowerOf2</a> (<a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a>) ; +00077 +00078 driver->setFrustum(0, (<font class="keywordtype">float</font>) <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, 0, (<font class="keywordtype">float</font>) <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>, -1, 1, <font class="keyword">false</font>) ; +00079 +00080 <font class="keywordflow">for</font> (uint sn = 0 ; sn < 2 ; ++sn) +00081 { +00082 vb.setTexCoord(0, sn, CUV(0, 0)) ; +00083 vb.setTexCoord(1, sn, CUV(widthRatio, 0)) ; +00084 vb.setTexCoord(2, sn, CUV(widthRatio, heightRatio)) ; +00085 vb.setTexCoord(3, sn, CUV(0, heightRatio)) ; +00086 } +00087 +00088 +00089 <font class="keyword">static</font> CMaterial mbMat ; +00090 <font class="keyword">static</font> <font class="keywordtype">bool</font> matSetup = <font class="keyword">false</font> ; <font class="comment">// set to true when mbMat has Been setup</font> +00091 <font class="keywordflow">if</font> (!matSetup) +00092 { +00093 mbMat.setBlend(<font class="keyword">true</font>) ; +00094 mbMat.setBlendFunc(CMaterial::srcalpha, CMaterial::invsrcalpha) ; +00095 mbMat.setZWrite(<font class="keyword">false</font>) ; +00096 mbMat.setZFunc(CMaterial::always) ; +00097 <font class="comment">// stage 0 </font> +00098 mbMat.setTexture(0, <a class="code" href="classNL3D_1_1CMotionBlur.html#n0">_Tex</a>) ; +00099 mbMat.texEnvOpRGB(0, CMaterial::Replace ); +00100 +00101 mbMat.texEnvArg0Alpha(0, CMaterial::Diffuse, CMaterial::SrcAlpha); +00102 mbMat.texEnvOpAlpha(0, CMaterial::Replace); +00103 +00104 mbMat.setDoubleSided(<font class="keyword">true</font>) ; +00105 matSetup = <font class="keyword">true</font> ; +00106 } +00107 +00108 +00109 mbMat.setColor(CRGBA(255, 255, 255, (uint8) (255.f * motionBlurAmount) ) ) ; +00110 +00111 +00112 vb.setVertexCoord(0, CVector((<font class="keywordtype">float</font>) <a class="code" href="classNL3D_1_1CMotionBlur.html#n1">_X</a>, 0, 0) ) ; +00113 vb.setVertexCoord(1, CVector((<font class="keywordtype">float</font>) (<a class="code" href="classNL3D_1_1CMotionBlur.html#n1">_X</a> + <a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a>), 0 ,0) ) ; +00114 vb.setVertexCoord(2, CVector((<font class="keywordtype">float</font>) (<a class="code" href="classNL3D_1_1CMotionBlur.html#n1">_X</a> + <a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a>), 0, (<font class="keywordtype">float</font>) (<a class="code" href="classNL3D_1_1CMotionBlur.html#n2">_Y</a> + <a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a>) ) ); +00115 vb.setVertexCoord(3, CVector(0 , 0, (<font class="keywordtype">float</font>) (<a class="code" href="classNL3D_1_1CMotionBlur.html#n2">_Y</a> + <a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a>) ) ) ; +00116 +00117 driver->setupViewMatrix(CMatrix::Identity) ; +00118 driver->setupModelMatrix(CMatrix::Identity) ; +00119 +00120 +00121 driver->activeVertexBuffer(vb) ; +00122 driver->renderQuads(mbMat, 0, 1) ; +00123 +00124 <font class="comment">// blit back frame buffer to save this frame</font> +00125 +00126 +00127 +00128 driver->copyFrameBufferToTexture(<a class="code" href="classNL3D_1_1CMotionBlur.html#n0">_Tex</a>, 0, 0, 0, <a class="code" href="classNL3D_1_1CMotionBlur.html#n1">_X</a>, <a class="code" href="classNL3D_1_1CMotionBlur.html#n2">_Y</a>, <a class="code" href="classNL3D_1_1CMotionBlur.html#n3">_W</a>, <a class="code" href="classNL3D_1_1CMotionBlur.html#n4">_H</a>) ; +00129 +00130 +00131 } +00132 +00133 +00134 } <font class="comment">// NL3D</font> +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |