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<div class="title">optix_base_shaders.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright 2018 NVIDIA Corporation. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> ******************************************************************************/</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &lt;optix.h&gt;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor">#include &lt;optixu/optixu_math_namespace.h&gt;</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &quot;optix_payload.h&quot;</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &quot;optix_common_variables.h&quot;</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &quot;optix_attributes.h&quot;</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;rtDeclareVariable(<a class="code" href="struct_payload.html">Payload</a>,  g_prd,  rtPayload,      );</div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// Closest hit</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;__device__</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="keywordtype">void</span> base_closest_hit()</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;{</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> primIdx = rtGetPrimitiveIndex();</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;    g_prd.set_triangle_id( primIdx );</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;    <span class="comment">//g_prd.set_model_id( model_id );</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    <span class="comment">// NOTE: we are switching triangle parameterization</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">float</span> bx = barycentrics.x;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">float</span> by = barycentrics.y;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">float</span> u = 1.0f - bx - by;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">float</span> v = bx;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    g_prd.set_uv( u, v );</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    g_prd.set_t( g_hit_t );</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="comment">//g_prd.geom.position = g_ray.origin + g_ray.direction * g_hit_t;</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="comment">//</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment"></span>    <span class="comment">//setup_differential_geometry( primIdx, u, v, &amp;g_prd.geom );</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;}</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">// Any hit</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;__device__</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keywordtype">void</span> base_any_hit()</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;{</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> primIdx = rtGetPrimitiveIndex();</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> triangleMask = g_index_buffer[primIdx].w;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <span class="keywordflow">if</span> (g_prd.mask() &amp; triangleMask)</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        rtIgnoreIntersection();</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;}</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">// Miss</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;__device__</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="keywordtype">void</span> base_miss()</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;{</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    g_prd.set_triangle_id( -1 );</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="comment">//g_prd.set_model_id( -1 );</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    g_prd.set_uv( 0.0f, 0.0f );</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    g_prd.set_t( -1.0f );</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;}</div><div class="ttc" id="struct_payload_html"><div class="ttname"><a href="struct_payload.html">Payload</a></div><div class="ttdef"><b>Definition:</b> optix_payload.h:21</div></div>
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