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2023-08-07 19:29:24 +08:00
commit 34d6c5d489
4832 changed files with 1389451 additions and 0 deletions
--- a/Editor/LightmapCompiler/TexelSampler.cpp
+++ b/Editor/LightmapCompiler/TexelSampler.cpp
@@ -0,0 +1,78 @@
+// ---------------------------------------------------------------------------------------------
+//	Crytek CryENGINE source code
+//	History:
+//	- Created by Michael Glueck
+// ---------------------------------------------------------------------------------------------
+
+#include "stdafx.h"							// precompiled headers
+#include "TexelSampler.h"					// CSimpleTriangleRastizer
+
+
+void CTexelSampler::Init(const EAATYPE ceAAType)
+{
+	m_vSamples.clear();
+	//process according to desired processing method
+	//pay attention to add them sorted by u and then v
+	switch(ceAAType)
+	{
+	case NONE:
+		m_vSamples.push_back(SSample());	//default constructor did everything
+		break;
+	case MED:
+		{
+			SSample sample;
+			sample.bTexelCenter = false;
+			sample.fX = 0.f - 0.5f;
+			sample.fY = 0.f - 0.5f;
+			sample.fWeight = 0.125f;	//1/8 for corner texels
+			m_vSamples.push_back(sample);
+			sample.fX = 1.f - 0.5f;
+			sample.fY = 0.f - 0.5f;
+			m_vSamples.push_back(sample);				
+			sample.fX = 0.5f - 0.5f;
+			sample.fY = 0.5f - 0.5f;
+			sample.fWeight = 0.5f;		//1/2 weight for center texel
+			sample.bTexelCenter = true;
+			m_vSamples.push_back(sample);				
+			sample.fX = 0.f - 0.5f;
+			sample.fY = 1.f - 0.5f;
+			sample.fWeight = 0.125f;
+			sample.bTexelCenter = false;
+			m_vSamples.push_back(sample);
+			sample.fX = 1.f - 0.5f;
+			sample.fY = 1.f - 0.5f;
+			m_vSamples.push_back(sample);
+		}
+		break;
+	case HIGH:
+		{
+			//it is assumed to be equal to n^2
+			SSample sample;
+			//uniform grid sampling
+			sample.fWeight = 1.f/(2.0f*(float)(HIGH-1));
+			static const float scfGrid = sqrtf((float)HIGH);
+			static const unsigned int scuiCount = (unsigned int)scfGrid;
+			sample.bTexelCenter = false;
+			float y = 1.f/(2.f * scfGrid);
+			for(int v=0;v<scuiCount;v++)
+			{
+				float x = 1.f/(2.f * scfGrid);
+				for(int u=0;u<scuiCount;u++)
+				{
+					x += 2.f/(2.f * scfGrid);
+					sample.fX = x - 0.5f;
+					sample.fY = y - 0.5f;
+					m_vSamples.push_back(sample);
+				}
+				y += 2.f/(2.f * scfGrid);
+			}
+			//alter weight of center sample
+			m_vSamples[(HIGH-1)/2].fWeight = 0.5f;
+			m_vSamples[(HIGH-1)/2].bTexelCenter = true;
+		}
+		break;
+	default:
+		//use no AA in this case (shouldn't happen anyway)
+		m_vSamples.push_back(SSample());		//default constructor did everything
+	}
+}