https://gamesweetgame.com/tags/%EB%9D%BC%EC%9D%B4%ED%8C%85/Recent content in 라이팅 on GameSweetGameHugo -- gohugo.iokoWed, 03 Jan 2024 00:00:00 +0900https://gamesweetgame.com/p/directx-%EB%9D%BC%EC%9D%B4%ED%8C%85-%EA%B8%B0%EC%B4%88-ambient-diffuse-specular/Wed, 03 Jan 2024 00:00:00 +0900https://gamesweetgame.com/p/directx-%EB%9D%BC%EC%9D%B4%ED%8C%85-%EA%B8%B0%EC%B4%88-ambient-diffuse-specular/<h2 id="라이팅-계산">라이팅 계산 </h2><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-hlsl" data-lang="hlsl"><span style="display:flex;"><span><span style="color:#66d9ef">float4</span> fvTotalAmbient <span style="color:#f92672">=</span> fvAmbient <span style="color:#f92672">*</span> fvBaseColor; </span></span><span style="display:flex;"><span><span style="color:#66d9ef">float4</span> fvTotalDiffuse <span style="color:#f92672">=</span> fvDiffuse <span style="color:#f92672">*</span> fNDotL <span style="color:#f92672">*</span> fvBaseColor; </span></span><span style="display:flex;"><span><span style="color:#66d9ef">float4</span> fvTotalSpecular <span style="color:#f92672">=</span> fvSpecular <span style="color:#f92672">*</span> pow( fRDotV, fSpecularPower ); </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#66d9ef">return</span>( saturate( fvTotalAmbient <span style="color:#f92672">+</span> fvTotalDiffuse <span style="color:#f92672">+</span> fvTotalSpecular ) ); </span></span></code></pre></div><h2 id="메모">메모 </h2><ul> <li><code>saturate()</code>는 0~1 사이의 값으로 클램핑</li> <li><strong>HDR에서는 saturate 함수를 사용하면 안 됨</strong> (1.0 이상의 값이 필요하기 때문)</li> <li>텍스처 압축하기 때문에 큰 용량 가능</li> <li><strong>림라이트</strong>는 버텍스에서 노멀벡터와 연산 하는게 테크닉</li> </ul>