diff --git a/addons/material_maker/nodes/sdboolean.mmg b/addons/material_maker/nodes/sdboolean.mmg
index de9e0d993..cf797c268 100644
--- a/addons/material_maker/nodes/sdboolean.mmg
+++ b/addons/material_maker/nodes/sdboolean.mmg
@@ -1,51 +1,58 @@
 {
+	"generic_size": 1,
 	"name": "sdboolean",
 	"node_position": {
 		"x": 0,
 		"y": 0
 	},
 	"parameters": {
-		"op": 0
+		"op1": 0
 	},
 	"seed_int": 0,
 	"shader_model": {
-		"code": "",
+		"code": [
+			"float $(name_uv)_b = $b($uv);",
+			"",
+			"#for",
+			"$(name_uv)_b = $op# $s#($uv), $(name_uv)_b);",
+			"#end"
+		],
 		"global": "",
 		"inputs": [
 			{
 				"default": "0.0",
 				"label": "",
 				"longdesc": "The first shape, defined as a signed distance function",
-				"name": "in1",
-				"shortdesc": "Input1",
+				"name": "b",
+				"shortdesc": "Base Shape",
 				"type": "sdf2d"
 			},
 			{
 				"default": "0.0",
 				"label": "",
-				"longdesc": "The second shape, defined as a signed distance function",
-				"name": "in2",
-				"shortdesc": "Input2",
+				"longdesc": "The subsequent shape, defined as a signed distance function",
+				"name": "s#",
+				"shortdesc": "Shape#",
 				"type": "sdf2d"
 			}
 		],
 		"instance": "",
-		"longdesc": "Performs a boolean operation (union, intersection or difference) between two shapes",
+		"longdesc": "Performs boolean operation(s) (union, intersection or difference) between two or more shapes",
 		"name": "sdBoolean",
 		"outputs": [
 			{
-				"longdesc": "The shape generated by the boolean operation",
-				"sdf2d": "$op $in1($uv), $in2($uv))",
+				"longdesc": "The shape generated by the boolean operation(s)",
+				"sdf2d": "$(name_uv)_b",
 				"shortdesc": "Output",
 				"type": "sdf2d"
 			}
 		],
 		"parameters": [
 			{
-				"default": 2,
-				"label": "",
+				"default": 0,
+				"label": "2:",
 				"longdesc": "The operation performed by this node",
-				"name": "op",
+				"name": "op#",
 				"shortdesc": "Operation",
 				"type": "enum",
 				"values": [
diff --git a/addons/material_maker/nodes/sdsmoothboolean.mmg b/addons/material_maker/nodes/sdsmoothboolean.mmg
index 7b7fb0cff..4275addb0 100644
--- a/addons/material_maker/nodes/sdsmoothboolean.mmg
+++ b/addons/material_maker/nodes/sdsmoothboolean.mmg
@@ -1,16 +1,23 @@
 {
+	"generic_size": 1,
 	"name": "sdsmoothboolean",
 	"node_position": {
 		"x": 0,
 		"y": 0
 	},
 	"parameters": {
-		"k": 0.15,
-		"op": 0
+		"k1": 0,
+		"op1": 0
 	},
 	"seed_int": 0,
 	"shader_model": {
-		"code": "",
+		"code": [
+			"float $(name_uv)_b = $b($uv);",
+			"",
+			"#for",
+			"$(name_uv)_b = sdSmooth$op#($s#($uv), $(name_uv)_b, $k#);",
+			"#end"
+		],
 		"global": [
 			"float sdSmoothUnion( float d1, float d2, float k ) {",
 			"\tfloat h = clamp( 0.5 + 0.5*(d2-d1)/k, 0.0, 1.0 );",
@@ -30,26 +37,26 @@
 				"default": "0.0",
 				"label": "",
 				"longdesc": "The first shape, defined as a signed distance function",
-				"name": "in1",
-				"shortdesc": "Input1",
+				"name": "b",
+				"shortdesc": "Base Shape",
 				"type": "sdf2d"
 			},
 			{
 				"default": "0.0",
 				"label": "",
-				"longdesc": "The second shape, defined as a signed distance function",
-				"name": "in2",
-				"shortdesc": "Input2",
+				"longdesc": "The subsequent shape, defined as a signed distance function",
+				"name": "s#",
+				"shortdesc": "Shape#",
 				"type": "sdf2d"
 			}
 		],
 		"instance": "",
-		"longdesc": "Performs a smooth boolean operation (union, intersection or difference) between two shapes",
+		"longdesc": "Performs smooth boolean operations (union, intersection or difference) between two or more shapes",
 		"name": "sdSmoothBoolean",
 		"outputs": [
 			{
-				"longdesc": "The shape generated by the boolean operation",
-				"sdf2d": "sdSmooth$op($in1($uv), $in2($uv), $k)",
+				"longdesc": "The shape generated by the boolean operation(s)",
+				"sdf2d": "$(name_uv)_b",
 				"shortdesc": "Output",
 				"type": "sdf2d"
 			}
@@ -57,10 +64,10 @@
 		"parameters": [
 			{
 				"default": 0,
-				"label": "",
+				"label": "2:",
 				"longdesc": "The operation performed by this node",
-				"name": "op",
-				"shortdesc": "Operation",
+				"name": "op#",
+				"shortdesc": "Operation#",
 				"type": "enum",
 				"values": [
 					{
@@ -80,12 +87,12 @@
 			{
 				"control": "None",
 				"default": 0,
-				"label": "",
+				"label": "2:",
 				"longdesc": "The smoothness of the boolean operation",
 				"max": 1,
 				"min": 0,
-				"name": "k",
-				"shortdesc": "Smoothness",
+				"name": "k#",
+				"shortdesc": "Smoothness#",
 				"step": 0.01,
 				"type": "float"
 			}
diff --git a/material_maker/doc/images/node_simple_sdf_operators_sdboolean.png b/material_maker/doc/images/node_simple_sdf_operators_sdboolean.png
index 107447844..6ee8ff350 100644
Binary files a/material_maker/doc/images/node_simple_sdf_operators_sdboolean.png and b/material_maker/doc/images/node_simple_sdf_operators_sdboolean.png differ
diff --git a/material_maker/doc/images/node_simple_sdf_operators_sdsmoothboolean.png b/material_maker/doc/images/node_simple_sdf_operators_sdsmoothboolean.png
index bedb9386f..941e10a5c 100644
Binary files a/material_maker/doc/images/node_simple_sdf_operators_sdsmoothboolean.png and b/material_maker/doc/images/node_simple_sdf_operators_sdsmoothboolean.png differ
diff --git a/material_maker/doc/node_simple_sdf_operators_sdboolean.rst b/material_maker/doc/node_simple_sdf_operators_sdboolean.rst
index 668023058..a2eabf866 100644
--- a/material_maker/doc/node_simple_sdf_operators_sdboolean.rst
+++ b/material_maker/doc/node_simple_sdf_operators_sdboolean.rst
@@ -10,7 +10,9 @@ intersection or difference) of its inputs.
 Inputs
 ::::::
 
-The **sdBoolean** node accepts 2 inputs in signed distance function format.
+The **sdBoolean** node accepts two or more inputs in signed distance function format.
+
+This node is variadic, and more shapes can be added.
 
 Outputs
 :::::::
diff --git a/material_maker/doc/node_simple_sdf_operators_sdsmoothboolean.rst b/material_maker/doc/node_simple_sdf_operators_sdsmoothboolean.rst
index 692302e84..74da8ad50 100644
--- a/material_maker/doc/node_simple_sdf_operators_sdsmoothboolean.rst
+++ b/material_maker/doc/node_simple_sdf_operators_sdsmoothboolean.rst
@@ -10,7 +10,9 @@ intersection or difference) of its inputs.
 Inputs
 ::::::
 
-The **sdSmoothBoolean** node accepts 2 inputs in signed distance function format.
+The **sdSmoothBoolean** node accepts two or more inputs in signed distance function format.
+
+This node is variadic, and more shapes can be added.
 
 Outputs
 :::::::