Notes from sdf3d_repeat.mmg.

game/addons/mat_maker_gd/nodes/common/sdf3d.gd

@@ -69,6 +69,28 @@ const Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd")
 #axis, enum, default:5, values: +X, -X, +Y, -Y, +Z, -Z
 #angle, float, min: 0, max: 90, default:30, step:1
 
+#----------------------
+#sdf3d_repeat.mmg
+
+#Outputs:
+
+#+X: $axis = length($uv.yz),-$uv.x
+#-X: $axis = length($uv.yz),$uv.x
+#+Y: $axis = length($uv.xz),$uv.y
+#-Y: $axis = length($uv.xz),-$uv.y
+#+Z: $axis = length($uv.xy),-$uv.z
+#-Z: $axis = length($uv.xy),$uv.z
+
+#Output (sdf3d)
+#Output (sdf3dc) - The shape generated by the repeat operation
+#$in(repeat($uv, vec3(1.0/$rx, 1.0/$ry, 0.0), float($seed), $r))
+
+#Inputs:
+#in, vec2, default:vec2(100, 0.0), (sdf3d input)
+
+#X, int, min: 1, max: 32, default:4, step:1
+#Y, int, min: 1, max: 32, default:4, step:1
+#R, float, min: 0, max: 1, default:0.5, step:0.01
 
 static func raymarch(uv : Vector2) -> Color:
 	var d : Vector2 = sdf3d_raymarch(uv);
@@ -281,6 +303,37 @@ static func sdf3d_elongation(p : Vector3, v : Vector3) -> Vector3:
 static func sdf3d_repeat(p : Vector3, r : Vector2, randomness : float, pseed : int) -> Vector3:
 	return (repeat(p, Vector3(1.0/r.x, 1.0/r.y, 0.00001), float(pseed), randomness))
 
+#vec3 repeat(vec3 p, vec3 r, float seed, float randomness) {
+#	vec3 a = (rand3(floor(mod((p.xy+0.5*r.xy)/r.xy, 1.0/r.xy)+vec2(seed)))-0.5)*6.28*randomness;
+#	p = mod(p+0.5*r,r)-0.5*r;
+#
+#	vec3 rv;
+#	float c;
+#	float s;
+#
+#	c = cos(a.x);
+#	s = sin(a.x);
+#
+#	rv.x = p.x;
+#	rv.y = p.y*c+p.z*s;rv.z = -p.y*s+p.z*c;
+#
+#	c = cos(a.y);
+#	s = sin(a.y);
+#
+#	p.x = rv.x*c+rv.z*s;
+#	p.y = rv.y;
+#	p.z = -rv.x*s+rv.z*c;
+#
+#	c = cos(a.z);
+#	s = sin(a.z);
+#
+#	rv.x = p.x*c+p.y*s;
+#	rv.y = -p.x*s+p.y*c;
+#	rv.z = p.z;
+#
+#	return rv;
+#}
+
 #Needs work
 static func repeat(p : Vector3, r : Vector3, pseed : float, randomness : float) -> Vector3:
 	#fix division by zero

game/addons/mat_maker_gd/nodes/material_maker_nodes/sdf3d_repeat.mmg

@@ -1,77 +0,0 @@
-{
-	"name": "sdf3d_repeat",
-	"node_position": {
-		"x": 0,
-		"y": 0
-	},
-	"parameters": {
-		"r": 0.3,
-		"rx": 3,
-		"ry": 3
-	},
-	"shader_model": {
-		"code": "",
-		"global": "vec3 repeat(vec3 p, vec3 r, float seed, float randomness) {\n\tvec3 a = (rand3(floor(mod((p.xy+0.5*r.xy)/r.xy, 1.0/r.xy)+vec2(seed)))-0.5)*6.28*randomness;\n\tp = mod(p+0.5*r,r)-0.5*r;\n\tvec3 rv;\n\tfloat c;\n\tfloat s;\n\tc = cos(a.x);\n\ts = sin(a.x);\n\trv.x = p.x;\n\trv.y = p.y*c+p.z*s;\n\trv.z = -p.y*s+p.z*c;\n\tc = cos(a.y);\n\ts = sin(a.y);\n\tp.x = rv.x*c+rv.z*s;\n\tp.y = rv.y;\n\tp.z = -rv.x*s+rv.z*c;\n\tc = cos(a.z);\n\ts = sin(a.z);\n\trv.x = p.x*c+p.y*s;\n\trv.y = -p.x*s+p.y*c;\n\trv.z = p.z;\n\treturn rv;\n}\n",
-		"inputs": [
-			{
-				"default": "vec2(100, 0.0)",
-				"label": "",
-				"longdesc": "The input shape, defined as a signed distance function",
-				"name": "in",
-				"shortdesc": "Input",
-				"type": "sdf3dc"
-			}
-		],
-		"instance": "",
-		"longdesc": "Repeats its input shape on a grid.\nThis node does not support overlapping between instances.",
-		"name": "Repeat",
-		"outputs": [
-			{
-				"longdesc": "The shape generated by the repeat operation",
-				"sdf3dc": "$in(repeat($uv, vec3(1.0/$rx, 1.0/$ry, 0.0), float($seed), $r))",
-				"shortdesc": "Output",
-				"type": "sdf3dc"
-			}
-		],
-		"parameters": [
-			{
-				"control": "None",
-				"default": 4,
-				"label": "X",
-				"longdesc": "The number of columns in the grid",
-				"max": 32,
-				"min": 1,
-				"name": "rx",
-				"shortdesc": "Columns",
-				"step": 1,
-				"type": "float"
-			},
-			{
-				"control": "None",
-				"default": 4,
-				"label": "Y",
-				"longdesc": "The number of lines in the grid",
-				"max": 32,
-				"min": 1,
-				"name": "ry",
-				"shortdesc": "Lines",
-				"step": 1,
-				"type": "float"
-			},
-			{
-				"control": "None",
-				"default": 0.5,
-				"label": "R",
-				"longdesc": "The amount of random rotation on each instance of the input shape",
-				"max": 1,
-				"min": 0,
-				"name": "r",
-				"shortdesc": "Rotation",
-				"step": 0.01,
-				"type": "float"
-			}
-		],
-		"shortdesc": "Repeat"
-	},
-	"type": "shader"
-}