[cleanup] Fixing some truncation compiler warnings

Author: sherholz-intel

openpgl/directional/dqt/DQTFactory.h

@@ -48,7 +48,7 @@ class DirectionalQuadtreeFactory {
         //   This additionally steers splitting of leaves which internally have an uneven distribution of incoming radiance.
         SplitMetric splitMetric = SplitMetric::MEAN;
         // Nodes are split if their metric is more than a fraction (splitThreshold) of the summed metric over all nodes
-        float splitThreshold = 0.1;
+        float splitThreshold = 0.1f;
         // Samples are accumulated into multiple nodes according to a footprint that is constructed from the sample center.
         // The footprint size is scaled by footprintFactor and the size of leaf in which the sample falls.
         // A footprint of 0 denotes that all radiance is accumulated into the single leaf in which the sample falls.
@@ -68,12 +68,12 @@ class DirectionalQuadtreeFactory {
     struct StatsNode {
         uint32_t offsetChildren = 0;
 
-        float sampleWeight = 0;
-        float splitWeight = 0;
+        float sampleWeight = 0.f;
+        float splitWeight = 0.f;
 
-        float numSamples = 0;
-        float firstMoment = 0;
-        float secondMoment = 0;
+        float numSamples = 0.f;
+        float firstMoment = 0.f;
+        float secondMoment = 0.f;
     };
 
     struct Statistics {

openpgl/directional/vmm/AdaptiveSplitandMergeFactory.h

@@ -39,8 +39,8 @@ struct AdaptiveSplitAndMergeFactory
     {
         typename WeightedEMFactory::Configuration weightedEMCfg;
 
-        float splittingThreshold { 0.75 };
-        float mergingThreshold { 0.00625 };
+        float splittingThreshold { 0.75f };
+        float mergingThreshold { 0.00625f };
 
         bool useSplitAndMerge {true};
 

openpgl/directional/vmm/VMM.h

@@ -675,7 +675,7 @@ Vector3 VonMisesFisherMixture<VecSize, maxComponents>::sample( const Vector2 sam
     Vector2 _sample = sample;
     float searched = _sample[1];
     float sumWeights = 0.0f;
-    float cdf = 0.0;
+    float cdf = 0.0f;
     //int k0 = 0;
     //int k1 = 0;
     // find comp

openpgl/directional/vmm/WeightedEMVMMFactory.h

@@ -60,7 +60,7 @@ struct WeightedEMVonMisesFisherFactory: public VonMisesFisherFactory< TVMMDistri
     {
         size_t numSamples {0};
         size_t numIterations {0};
-        float summedWeightedLogLikelihood {0.0};
+        float summedWeightedLogLikelihood {0.0f};
     };
 
     struct PartialFittingMask
@@ -1066,7 +1066,7 @@ void WeightedEMVonMisesFisherFactory< TVMMDistribution>::estimatePartialMAPMeanD
             vmm._meanDirections[cnt-1].z[i] = 1.0f;
 
             vmm._meanCosines[cnt-1][i] = 0.0f;
-            vmm._kappas[cnt-1][i] = 0.0;
+            vmm._kappas[cnt-1][i] = 0.0f;
         }
     }