- Fixed issue with BlendFactor in D3D8, D3D9 and OpenGL drivers.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4883 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CD3D8Driver.cpp

@@ -1633,7 +1633,7 @@ void CD3D8Driver::setBasicRenderStates(const SMaterial& material, const SMateria
 	}
 
     // Blend Factor
-    if (material.BlendFactor != 0.f)
+	if (IR(material.BlendFactor) & 0xFFFFFFFF)
 	{
         E_BLEND_FACTOR srcFact = EBF_ZERO;
         E_BLEND_FACTOR dstFact = EBF_ZERO;

source/Irrlicht/CD3D9Driver.cpp

@@ -2344,7 +2344,7 @@ void CD3D9Driver::setBasicRenderStates(const SMaterial& material, const SMateria
 	}
 
     // Blend Factor
-    if (material.BlendFactor != 0.f)
+	if (IR(material.BlendFactor) & 0xFFFFFFFF)
 	{
         E_BLEND_FACTOR srcRGBFact = EBF_ZERO;
         E_BLEND_FACTOR dstRGBFact = EBF_ZERO;

source/Irrlicht/COpenGLDriver.cpp

@@ -3194,7 +3194,7 @@ void COpenGLDriver::setBasicRenderStates(const SMaterial& material, const SMater
 	}
 
     // Blend Factor
-    if (material.BlendFactor != 0.f)
+	if (IR(material.BlendFactor) & 0xFFFFFFFF)
 	{
         E_BLEND_FACTOR srcRGBFact = EBF_ZERO;
         E_BLEND_FACTOR dstRGBFact = EBF_ZERO;