Use std math functions in Max plugin.

VS12 provides math functions which were conflicting with ones defined
in texutil.h.  This removes the reliance on texutil.h and uses the
standard library's math in its place.

Sources/Tools/MaxConvert/Pch.h

@@ -92,7 +92,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include <modstack.h>
 #include <notify.h>
 #include <stdmat.h>
-#include <texutil.h>
 
 // MaxComponent
 #include "MaxComponent/plComponent.h"

Sources/Tools/MaxConvert/hsControlConverter.cpp

@@ -53,7 +53,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include <stdmat.h>
 #include <bmmlib.h>
 #include <istdplug.h>
-#include <texutil.h>
 #include <iparamb2.h>
 #include <modstack.h>
 #include <keyreduc.h>

Sources/Tools/MaxConvert/hsMaterialConverter.cpp

@@ -57,7 +57,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include <istdplug.h>
 #include <pbbitmap.h>
 #include <stdmat.h>
-#include <texutil.h>
 #pragma hdrstop
 
 #include "hsMaterialConverter.h"

Sources/Tools/MaxPlasmaMtls/Pch.h

@@ -68,7 +68,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include <notetrck.h>
 #include <notify.h>
 #include <stdmat.h>
-#include <texutil.h>
 #include <triobj.h>
 
 // MaxMain

Sources/Tools/MaxPlasmaMtls/plBMSampler.cpp

@@ -45,7 +45,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 
 #include <bmmlib.h>
 #include <max.h>
-#include <texutil.h>
 #include <iparamb2.h>
 #pragma hdrstop
 
@@ -105,9 +104,9 @@ AColor plBMSampler::Sample(ShadeContext& sc, float u,float v)
 
     BMM_Color_64 c;
     int x,y;
-    float fu,fv;
+    float fu,fv, intpart;
-    fu = frac(u);
+    fu = modf(u, &intpart);
-    fv = 1.0f-frac(v);
+    fv = 1.0f - modf(v, &intpart);
     if (fData.fEnableCrop)
     {
         if (fData.fCropPlacement)
@@ -119,8 +118,8 @@ AColor plBMSampler::Sample(ShadeContext& sc, float u,float v)
         }
         else
         {
-            x = mod(clipx + (int)(fu*fclipw+0.5f),bmw);
+            x = clipx + static_cast<int>(fu * fclipw + 0.5f) % bmw;
-            y = mod(clipy + (int)(fv*fcliph+0.5f),bmh);
+            y = clipy + static_cast<int>(fv * fcliph + 0.5f) % bmh;
         }
     }
     else
@@ -156,9 +155,9 @@ AColor plBMSampler::SampleFilter(ShadeContext& sc, float u,float v, float du, fl
     fBM->SetFilter(BMM_FILTER_PYRAMID);
 
     BMM_Color_64 c;
-    float fu,fv;
+    float fu, fv, intpart;
-    fu = frac(u);
+    fu = modf(u, &intpart);
-    fv = 1.0f-frac(v);
+    fv = 1.0f - modf(v, &intpart);
     if (fData.fEnableCrop)
     {
         if (fData.fCropPlacement)