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Merging r6196 through r6248 from trunk to ogl-es branch git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6249 dfc29bdd-3216-0410-991c-e03cc46cb475
2021-08-26 23:57:27 +02:00
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<title>Tutorial 22: Material Viewer</title>
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<div class="title">Tutorial 22: Material Viewer </div> </div>
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<div class="contents">
<div class="textblock"><div class="image">
<img src="../../media/example_screenshots/022shot.jpg" alt="022shot.jpg"/>
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<p>This example can be used to play around with material settings and watch the results. Only the default non-shader materials are used in here.</p>
<p>You have a node with a mesh, one dynamic light and global ambient light to play around with. You can move the light with cursor-keys and +/-. You can move the camera while left-mouse button is clicked. </p><div class="fragment"><div class="line"><span class="comment">// TODO: Should be possible to set all material values by the GUI.</span></div><div class="line"><span class="comment">// For now just change the defaultMaterial in CApp::init for the rest.</span></div><div class="line"><span class="comment">// TODO: Allow users to switch between a sphere and a box mesh.</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include &lt;irrlicht.h&gt;</span></div><div class="line"><span class="preprocessor">#include &quot;driverChoice.h&quot;</span></div><div class="line"><span class="preprocessor">#include &quot;exampleHelper.h&quot;</span></div><div class="line"><span class="preprocessor">#include &quot;main.h&quot;</span></div><div class="line"></div><div class="line"><span class="keyword">using namespace </span>irr;</div><div class="line"></div><div class="line"><span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><span class="preprocessor">#pragma comment(lib, &quot;Irrlicht.lib&quot;)</span></div><div class="line"><span class="preprocessor">#endif</span></div></div><!-- fragment --><p> Variables within the empty namespace are globals which are restricted to this file. </p><div class="fragment"><div class="line"><span class="keyword">namespace</span></div><div class="line">{</div><div class="line"> <span class="comment">// For the gui id&#39;s</span></div><div class="line"> <span class="keyword">enum</span> EGUI_IDS</div><div class="line"> {</div><div class="line"> GUI_ID_OPEN_TEXTURE = 1,</div><div class="line"> GUI_ID_QUIT,</div><div class="line"> GUI_ID_MAX</div><div class="line"> };</div><div class="line"></div><div class="line"> <span class="comment">// Name used in texture selection to clear the textures on the node</span></div><div class="line"> <span class="keyword">const</span> core::stringw CLEAR_TEXTURE = L<span class="stringliteral">&quot;CLEAR texture&quot;</span>;</div><div class="line"></div><div class="line"> <span class="comment">// some useful color constants</span></div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_BLACK = video::SColor(255, 0, 0, 0);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_BLUE = video::SColor(255, 0, 0, 255);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_CYAN = video::SColor(255, 0, 255, 255);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_GRAY = video::SColor(255, 128,128, 128);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_GREEN = video::SColor(255, 0, 255, 0);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_MAGENTA = video::SColor(255, 255, 0, 255);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_RED = video::SColor(255, 255, 0, 0);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_YELLOW = video::SColor(255, 255, 255, 0);</div><div class="line"> <span class="keyword">const</span> video::SColor SCOL_WHITE = video::SColor(255, 255, 255, 255);</div><div class="line">}; <span class="comment">// namespace</span></div></div><!-- fragment --><p> Returns a new unique number on each call. </p><div class="fragment"><div class="line">s32 makeUniqueId()</div><div class="line">{</div><div class="line"> <span class="keyword">static</span> <span class="keywordtype">int</span> unique = GUI_ID_MAX;</div><div class="line"> ++unique;</div><div class="line"> <span class="keywordflow">return</span> unique;</div><div class="line">}</div></div><!-- fragment --><p> Find out which vertex-type is needed for the given material type. </p><div class="fragment"><div class="line">vi
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