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    <p>I found it. Thanks to everyone.</p> <p>The game is using N3Terrain :)</p> <pre><code>float CN3Terrain::GetHeight(float x, float z) </code></pre> <p>{ int ix, iz; ix = ((int)x) / TILE_SIZE; iz = ((int)z) / TILE_SIZE;</p> <pre><code>if(ix&lt;0 || ix&gt;(m_ti_MapSize-2)) return -FLT_MAX; if(iz&lt;0 || iz&gt;(m_ti_MapSize-2)) return -FLT_MAX; float dX, dZ; dX = (x - (ix*TILE_SIZE)) / TILE_SIZE; dZ = (z - (iz*TILE_SIZE)) / TILE_SIZE; float y; float h1, h2, h3, h12, h13; if((ix+iz)%2==0) //»ç°¢ÇüÀÌ / ¸ð¾ç.. { h1 = m_pMapData[ix*m_ti_MapSize + iz].fHeight; h3 = m_pMapData[(ix+1)*m_ti_MapSize + (iz+1)].fHeight; if (dZ &gt; dX) //À­ÂÊ »ï°¢Çü.. { h2 = m_pMapData[ix*m_ti_MapSize + (iz+1)].fHeight; h12 = h1 + (h2-h1) * dZ; // h1°ú h2»çÀÌÀÇ ³ôÀÌ°ª h13 = h1 + (h3-h1) * dZ; // h1°ú h3»çÀÌÀÇ ³ôÀÌ°ª y = h12 + ((h13-h12) * (dX/dZ)); // ã°íÀÚ ÇÏ´Â ³ôÀÌ°ª return y; } else //¾Æ·¡ÂÊ »ï°¢Çü.. { if(dX==0.0f) return h1; h2 = m_pMapData[(ix+1)*m_ti_MapSize + iz].fHeight; h12 = h1 + (h2-h1) * dX; // h1°ú h2»çÀÌÀÇ ³ôÀÌ°ª h13 = h1 + (h3-h1) * dX; // h1°ú h3»çÀÌÀÇ ³ôÀÌ°ª y = h12 + ((h13-h12) * (dZ/dX)); // ã°íÀÚ ÇÏ´Â ³ôÀÌ°ª return y; } } else if ((ix+iz)%2==1) //»ç°¢ÇüÀÌ ¿ª½½·¹½¬ ¸ð¾ç.. { h1 = m_pMapData[(ix+1)*m_ti_MapSize + iz].fHeight; h3 = m_pMapData[ix*m_ti_MapSize + (iz+1)].fHeight; if ((dX+dZ) &gt; 1.0f) //À­ÂÊ »ï°¢Çü.. { if(dZ==0.0f) return h1; h2 = m_pMapData[(ix+1)*m_ti_MapSize + (iz+1)].fHeight; h12 = h1 + (h2-h1) * dZ; h13 = h1 + (h3-h1) * dZ; y = h12 + ((h13-h12) * ((1.0f-dX)/dZ)); return y; } else //¾Æ·¡ÂÊ »ï°¢Çü.. { if(dX==1.0f) return h1; h2 = m_pMapData[ix*m_ti_MapSize + iz].fHeight; h12 = h2+(h1-h2)*dX; // h1°ú h2»çÀÌÀÇ ³ôÀÌ°ª h13 = h3+(h1-h3)*dX; // h1°ú h3»çÀÌÀÇ ³ôÀÌ°ª y = h12 + ((h13-h12) * (dZ/(1.0f-dX))); return y; } } return -FLT_MAX; </code></pre> <p>}</p>
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    1. POIn a directx application, find z (terrain) with known location
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    1. USBurak Tamtürk
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