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Author: thiago
Date: Thu Jul 17 15:56:34 2008
New Revision: 2305

Modified:
   trunk/Model/Lights/AreaLight.cc
Log:
Fix bug from half a year ago whereby the SSE code path worked for path
tracing but the non-sse code path produced darker images.

Modified: trunk/Model/Lights/AreaLight.cc
==============================================================================
--- trunk/Model/Lights/AreaLight.cc     (original)
+++ trunk/Model/Lights/AreaLight.cc     Thu Jul 17 15:56:34 2008
@@ -119,8 +119,7 @@
                                       cosine);
         for (unsigned int c = 0; c < 3; c++) {
           _mm_store_ps(&destData->color[c][i],
-                       _mm_or_ps(_mm_and_ps(black_light, _mm_setzero_ps()),
-                                 _mm_andnot_ps(black_light, 
_mm_div_ps(_mm_set1_ps(color[c]), solid_pdf))));
+                       _mm_andnot_ps(black_light, 
_mm_div_ps(_mm_set1_ps(color[c]), solid_pdf)));
         }
       }
     }
@@ -131,8 +130,7 @@
       Real cosine = -Dot(dir, normals.get(i));
       destRays.setDirection(i, dir);
       destRays.overrideMinT(i, len - T_EPSILON);
-      if (cosine <= Real(0) ||
-          sourceRays.data->ignoreEmittedLight[i]) {
+      if (cosine <= Real(0)) {
         // Wrong side of the light
         destRays.setColor(i, Color::black());
       } else {
@@ -151,8 +149,7 @@
     Real cosine = -Dot(dir, normals.get(i));
     destRays.setDirection(i, dir);
     destRays.overrideMinT(i, len - T_EPSILON);
-    if (cosine <= Real(0) ||
-        sourceRays.data->ignoreEmittedLight[i]) {
+    if (cosine <= Real(0)) {
       // Wrong side of the light
       destRays.setColor(i, Color::black());
     } else {

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• [Manta] r2305 - trunk/Model/Lights, Thiago Ize, 07/17/2008

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