Cinema 4D C++ SDK 2026.1

Author: mxn-ferdinand

plugins/example.image/source/example_image_layers_area.cpp

@@ -110,8 +110,8 @@ static float* AddAlienBuffer()
 	// The knots of the gradient. We either interpolate from opaque to transparent or vice versa. We 
 	// dip here our toes a bit into the Maxon API with ColorA32 so that we later use its color 
 	// interpolation function.
-	const float alphaA = g_random.Get01() > .5 ? 0.0 : 1.0;
-	const float alphaB = alphaA > 0.5 ? 0.0 : 1.0;
+	const float alphaA = g_random.Get01() > .5 ? 0.0f : 1.0f;
+	const float alphaB = alphaA > 0.5f ? 0.0f : 1.0f;
 	const maxon::ColorA32 gradientColorA(
 		g_random.Get01(), g_random.Get01(), g_random.Get01(), alphaA);
 	const maxon::ColorA32 gradientColorB(

plugins/example.main/source/gui/activeobject.cpp

@@ -348,6 +348,14 @@ static Bool BuildTree(DebugNode* parent, DebugArray& oldlist, DebugArray& newlis
 		if (cc)
 			if (!BuildTree(n, oldlist, newlist, cc, String("ISOPARM: "), true))
 				return false;
+
+		if (node->GetInfo() & OBJECT_ISSPLINE)
+		{
+			cc = obj->GetRealSpline();
+			if (cc && (cc != obj))
+				if (!BuildTree(n, oldlist, newlist, cc, String("REALSPLINE: "), true))
+					return false;
+		}
 	}
 
 	if (node->GetDown())

plugins/example.main/source/object/objectdata_greektemple.cpp

@@ -414,7 +414,6 @@ namespace GreekTempleHelpers
 	/// Global function responsible to create the colonnade of the temple using cylinders and bent
 	/// cubes and responsible for managing the columns grid arrangement.
 	/// @brief Global function to create the temple colonnade managing columns grid arrangement.
-	/// @param[out] colonnadeNullRelPtr	Colonnade object. @callerOwnsPointed{base object}
 	/// @param[in] columnNullRelPtr		Column object to be instanced.
 	/// @param[in] topStepWidth				Width of the top-most step.
 	/// @param[in] topStepHeight			Height of the top-most step.
@@ -424,7 +423,7 @@ namespace GreekTempleHelpers
 	/// @param[in] xSpace							Space between columns along the x-axis.
 	/// @param[in] zSpace							Space between columns along the z-axis.
 	/// @param[in] hhPtr							A hierarchy helper for the operation. @callerOwnsPointed{hierarchy helper}
-	/// @return												True if instancing process succeeds.
+	/// @return												Colonnade object or error.
 	//----------------------------------------------------------------------------------------
 	static maxon::Result<BaseObject*> PerformeColumnsInstancing(maxon::UniqueRef<BaseObject> columnNullRelPtr, const Float& topStepWidth, const Float& topStepHeight, const Vector& topStepBLVertexPos, const Vector& columnRadius, const Vector& columnScaleVector, const Float xSpace /*= 0*/, const Float zSpace /*= 0*/, const HierarchyHelp* hhPtr /*= nullptr*/)
 	{