combine sdf

PixelComposer.resource_order

@@ -37,6 +37,7 @@
     {"name":"d3d_mesh","order":5,"path":"folders/nodes/data/3D/d3d_mesh.yy",},
     {"name":"d3d_modifier","order":6,"path":"folders/nodes/data/3D/d3d_modifier.yy",},
     {"name":"d3d_particle","order":7,"path":"folders/nodes/data/3D/d3d_particle.yy",},
+    {"name":"raymarching","order":13,"path":"folders/nodes/data/3D/raymarching.yy",},
     {"name":"animation","order":13,"path":"folders/nodes/data/animation.yy",},
     {"name":"fn","order":7,"path":"folders/nodes/data/animation/fn.yy",},
     {"name":"canvas","order":30,"path":"folders/nodes/data/canvas.yy",},
@@ -57,7 +58,6 @@
     {"name":"drawer","order":11,"path":"folders/nodes/data/generator/drawer.yy",},
     {"name":"noise","order":14,"path":"folders/nodes/data/generator/noise.yy",},
     {"name":"pattern","order":15,"path":"folders/nodes/data/generator/pattern.yy",},
-    {"name":"raymarching","order":13,"path":"folders/nodes/data/3D/raymarching.yy",},
     {"name":"regions","order":19,"path":"folders/nodes/data/generator/regions.yy",},
     {"name":"group","order":18,"path":"folders/nodes/data/group.yy",},
     {"name":"io","order":19,"path":"folders/nodes/data/io.yy",},

PixelComposer.yyp

@@ -133,6 +133,7 @@
     {"$GMFolder":"","%Name":"d3d_mesh","folderPath":"folders/nodes/data/3D/d3d_mesh.yy","name":"d3d_mesh","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"d3d_modifier","folderPath":"folders/nodes/data/3D/d3d_modifier.yy","name":"d3d_modifier","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"d3d_particle","folderPath":"folders/nodes/data/3D/d3d_particle.yy","name":"d3d_particle","resourceType":"GMFolder","resourceVersion":"2.0",},
+    {"$GMFolder":"","%Name":"raymarching","folderPath":"folders/nodes/data/3D/raymarching.yy","name":"raymarching","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"animation","folderPath":"folders/nodes/data/animation.yy","name":"animation","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"fn","folderPath":"folders/nodes/data/animation/fn.yy","name":"fn","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"canvas","folderPath":"folders/nodes/data/canvas.yy","name":"canvas","resourceType":"GMFolder","resourceVersion":"2.0",},
@@ -155,7 +156,6 @@
     {"$GMFolder":"","%Name":"drawer","folderPath":"folders/nodes/data/generator/drawer.yy","name":"drawer","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"noise","folderPath":"folders/nodes/data/generator/noise.yy","name":"noise","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"pattern","folderPath":"folders/nodes/data/generator/pattern.yy","name":"pattern","resourceType":"GMFolder","resourceVersion":"2.0",},
-    {"$GMFolder":"","%Name":"raymarching","folderPath":"folders/nodes/data/3D/raymarching.yy","name":"raymarching","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"regions","folderPath":"folders/nodes/data/generator/regions.yy","name":"regions","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"group","folderPath":"folders/nodes/data/group.yy","name":"group","resourceType":"GMFolder","resourceVersion":"2.0",},
     {"$GMFolder":"","%Name":"io","folderPath":"folders/nodes/data/io.yy","name":"io","resourceType":"GMFolder","resourceVersion":"2.0",},

scripts/__raymarching/__raymarching.gml

@@ -43,6 +43,7 @@ function RM_Object() constructor {
 	triplanar     = [];
 	
 	opmap = -1;
+	oparg = [];
 	
 	uniformKeys   = [ "shape", "size", "radius", "thickness", "crop", "angle", "height", "radRange", "sizeUni", "elongate", "rounded", "corner", "size2D", "sides", 
 					  "waveAmp", "waveInt", "waveShift", 
@@ -73,6 +74,7 @@ function RM_Object() constructor {
 		if(shapeAmount <= 0) return;
 		
 		shader_set_i("operations",       opmap);
+		shader_set_i("opArgument",       oparg);
 		shader_set_i("opLength",         array_safe_length(opmap));
 		
 		shader_set_i("shape",            shape);
@@ -124,6 +126,7 @@ function RM_Operation(type, left, right) : RM_Object() constructor {
 	self.type  = type;
 	self.left  = left;
 	self.right = right;
+	merge = 0;
 	
 	static reset = function() {
 		
@@ -175,12 +178,19 @@ function RM_Operation(type, left, right) : RM_Object() constructor {
 			if(is_string(_a)) {
 				switch(_a) {
 					case "combine"   : array_push(opmap, 100); break;
-				}
+					case "union"     : array_push(opmap, 101); break;
-			} else if(is_struct(_a))
+					case "subtract"  : array_push(opmap, 102); break;
-				array_push(opmap, _a.flatten_index);
+					case "intersect" : array_push(opmap, 103); break;
+				}
+				
+				array_push(oparg, merge);
+				
+			} else if(is_struct(_a)) {
+				array_push(opmap, _a.flatten_index);
+				array_push(oparg, 0);
+			}
 		}
 		
-		// print(opmap);
 		shapeAmount = array_length(_nodes);
 		
 		reset();

scripts/node_rm_combine/node_rm_combine.gml

@@ -34,28 +34,47 @@ function Node_RM_Combine(_x, _y, _group = noone) : Node_Processor(_x, _y, _group
 	
 	inputs[| 10] = nodeValue("Environment", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, false);
 	
+	inputs[| 11] = nodeValue("Camera Rotation", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 30, 45, 0 ])
+		.setDisplay(VALUE_DISPLAY.vector);
+	
+	inputs[| 12] = nodeValue("Camera Scale", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 1)
+		.setDisplay(VALUE_DISPLAY.slider, { range: [ 0, 4, 0.01 ] });
+	
 	////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	
-	inputs[| 11] = nodeValue("Shape 1", self, JUNCTION_CONNECT.input, VALUE_TYPE.struct, {})
+	inputs[| 13] = nodeValue("Shape 1", self, JUNCTION_CONNECT.input, VALUE_TYPE.struct, {})
 		.setVisible(true, true);
 	
-	inputs[| 12] = nodeValue("Shape 2", self, JUNCTION_CONNECT.input, VALUE_TYPE.struct, {})
+	inputs[| 14] = nodeValue("Shape 2", self, JUNCTION_CONNECT.input, VALUE_TYPE.struct, {})
 		.setVisible(true, true);
 	
 	////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	
+	inputs[| 15] = nodeValue("Type", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 0)
+		.setDisplay(VALUE_DISPLAY.enum_scroll, [ "Place", "Union", "Subtract", "Intersect" ]);
+	
+	inputs[| 16] = nodeValue("Merge", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 0.1)
+		.setDisplay(VALUE_DISPLAY.slider);
+	
 	outputs[| 0] = nodeValue("Surface Out", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
 	
 	outputs[| 1] = nodeValue("Shape Data", self, JUNCTION_CONNECT.output, VALUE_TYPE.struct, noone);
 	
 	input_display_list = [ 0,
-		["Camera", false], 1, 2, 3, 4, 5, 
+		["Combine", false], 15, 13, 14, 
+		["Camera",  false], 11, 12, 1, 2, 3, 4, 5, 
 		["Render",  false], 6, 7, 8, 10, 9, 
-		["Shapes", false], 11, 12, 
 	]
 	
+	object = noone;
 	temp_surface = [ 0, 0 ];
 	
+	static step = function() {
+		var _type = getSingleValue(15);
+		
+		inputs[| 16].setVisible(_type > 0);
+	}
+	
 	static processData = function(_outSurf, _data, _output_index, _array_index = 0) {
 		var _dim = _data[0];
 		
@@ -70,9 +89,13 @@ function Node_RM_Combine(_x, _y, _group = noone) : Node_Processor(_x, _y, _group
 		var _amb = _data[8];
 		var _lig = _data[9];
 		var _env = _data[10];
+		var _crt = _data[11];
+		var _csa = _data[12];
 		
-		var _sh0 = _data[11];
+		var _sh0 = _data[13];
-		var _sh1 = _data[12];
+		var _sh1 = _data[14];
+		var _typ = _data[15];
+		var _mer = _data[16];
 		
 		if(!is_instanceof(_sh0, RM_Object)) return [ _outSurf, noone ];
 		if(!is_instanceof(_sh1, RM_Object)) return [ _outSurf, noone ];
@@ -87,7 +110,14 @@ function Node_RM_Combine(_x, _y, _group = noone) : Node_Processor(_x, _y, _group
 			draw_surface_stretched_safe(_env, tx * 0, tx * 0, tx, tx);
 		surface_reset_shader();
 		
-		var object = new RM_Operation("combine", _sh0, _sh1);
+		switch(_typ) {
+			case 0 : object = new RM_Operation("combine",   _sh0, _sh1); break;
+			case 1 : object = new RM_Operation("union",     _sh0, _sh1); break;
+			case 2 : object = new RM_Operation("subtract",  _sh0, _sh1); break;
+			case 3 : object = new RM_Operation("intersect", _sh0, _sh1); break;
+ 		}
+ 		
+ 		object.merge = _mer;
 		object.flatten();
 		object.setTexture(temp_surface[1]);
 		
@@ -96,6 +126,9 @@ function Node_RM_Combine(_x, _y, _group = noone) : Node_Processor(_x, _y, _group
 			
 			shader_set_surface($"texture0", temp_surface[0]);
 			
+			shader_set_f("camRotation", _crt);
+			shader_set_f("camScale",    _csa);
+			
 			shader_set_i("ortho",       _pro);
 			shader_set_f("fov",         _fov);
 			shader_set_f("orthoScale",  _ort);

scripts/node_rm_primitive/node_rm_primitive.gml

@@ -30,7 +30,7 @@ function Node_RM_Primitive(_x, _y, _group = noone) : Node_Processor(_x, _y, _gro
 	inputs[| 2] = nodeValue("Position", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0, 0, 0 ])
 		.setDisplay(VALUE_DISPLAY.vector);
 	
-	inputs[| 3] = nodeValue("Rotation", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 30, 45, 0 ])
+	inputs[| 3] = nodeValue("Rotation", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0, 0, 0 ])
 		.setDisplay(VALUE_DISPLAY.vector);
 	
 	inputs[| 4] = nodeValue("Scale", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 1)
@@ -147,6 +147,12 @@ function Node_RM_Primitive(_x, _y, _group = noone) : Node_Processor(_x, _y, _gro
 	
 	/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 		
+	inputs[| 42] = nodeValue("Camera Rotation", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 30, 45, 0 ])
+		.setDisplay(VALUE_DISPLAY.vector);
+	
+	inputs[| 43] = nodeValue("Camera Scale", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 1)
+		.setDisplay(VALUE_DISPLAY.slider, { range: [ 0, 4, 0.01 ] });
+	
 	outputs[| 0] = nodeValue("Surface Out", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
 	
 	outputs[| 1] = nodeValue("Shape Data", self, JUNCTION_CONNECT.output, VALUE_TYPE.struct, noone);
@@ -157,7 +163,7 @@ function Node_RM_Primitive(_x, _y, _group = noone) : Node_Processor(_x, _y, _gro
 		["Deform",      true], 15, 16, 17, 18, 19, 
 		["Transform",  false],  2,  3,  4, 
 		["Material",   false],  9, 36, 35, 37, 38, 
-		["Camera",     false], 13, 14,  5,  6, 
+		["Camera",     false], 42, 43, 13, 14,  5,  6, 
 		["Render",     false], 31, 30, 34, 10,  7,  8, 
 		["Tile",       false], 20, 29, 
 		["Volumetric",  true, 32], 33, 
@@ -334,6 +340,9 @@ function Node_RM_Primitive(_x, _y, _group = noone) : Node_Processor(_x, _y, _gro
 		var _sz2d = _data[40];
 		var _side = _data[41];
 		
+		var _crt  = _data[42];
+		var _csa  = _data[43];
+		
 		_outSurf = surface_verify(_outSurf, _dim[0], _dim[1]);
 		
 		for (var i = 0, n = array_length(temp_surface); i < n; i++)
@@ -422,6 +431,9 @@ function Node_RM_Primitive(_x, _y, _group = noone) : Node_Processor(_x, _y, _gro
 			
 			shader_set_surface($"texture0", temp_surface[0]);
 			
+			shader_set_f("camRotation", _crt);
+			shader_set_f("camScale",    _csa);
+			
 			shader_set_i("ortho",       _ort);
 			shader_set_f("fov",         _fov);
 			shader_set_f("orthoScale",  _ortS);
@@ -443,4 +455,5 @@ function Node_RM_Primitive(_x, _y, _group = noone) : Node_Processor(_x, _y, _gro
 		
 		return [ _outSurf, object ]; 
 	}
+	
 } 

scripts/textBox/textBox.gml

@@ -23,7 +23,7 @@ function textBox(_input, _onModify) : textInput(_input, _onModify) constructor {
 	slidePen    = false;
 	slide_delta = 0;
 	slide_int   = false;
-	slide_speed = 1 / 10;
+	slide_speed = 1 / 25;
 	slide_snap  = 0;
 	slide_range = noone;
 	curr_range  = [ 0, 1 ];

shaders/sh_rm_primitive/sh_rm_primitive.fsh

@@ -22,6 +22,7 @@ uniform sampler2D texture2;
 uniform sampler2D texture3;
 
 uniform int   operations[MAX_OP];
+uniform float opArgument[MAX_OP];
 uniform int   opLength;
 
 ///////////////////////////////////////////////////////////////////
@@ -69,6 +70,9 @@ uniform float triplanar[MAX_SHAPES]                               ;
 
 ///////////////////////////////////////////////////////////////////
 
+uniform vec3  camRotation;
+uniform float camScale;
+
 uniform int   ortho;
 uniform float fov;
 uniform float orthoScale;
@@ -138,10 +142,10 @@ mat3 rotMatrix, irotMatrix;
 	float dot2( in vec3 v ) { return dot(v,v); }
 	float ndot( in vec2 a, in vec2 b ) { return a.x*b.x - a.y*b.y; }
 	
-	vec4 sampleTexture(int index, vec2 coord) {
+	vec4 sampleTexture(int textureIndex, vec2 coord) {
 		if(coord.x < 0. || coord.y < 0. || coord.x > 1. || coord.y > 1.) return vec4(0.);
 		
-		float i = float(index);
+		float i = float(textureIndex);
 		
 		float txIndex = floor(i / TEXTURE_S);
 		float stcInd  = i - txIndex * TEXTURE_S;
@@ -377,31 +381,31 @@ mat3 rotMatrix, irotMatrix;
 	    return min(max(w.x, w.y), 0.0) + length(max(w, 0.0));
 	}
 
-	vec3 wave(int index, vec3 p) {
+	vec3 wave(vec3 amp, vec3 shift, vec3 inten, vec3 p) {
-	    p.x += sin(p.y * waveAmp[index].y + waveShift[index].x * PI * 2.) * waveInt[index].x + 
+	    p.x += sin(p.y * amp.y + shift.x * PI * 2.) * inten.x + 
-	    	   sin(p.z * waveAmp[index].z + waveShift[index].x * PI * 2.) * waveInt[index].x;
+	    	   sin(p.z * amp.z + shift.x * PI * 2.) * inten.x;
-	    p.y += sin(p.x * waveAmp[index].x + waveShift[index].y * PI * 2.) * waveInt[index].y + 
+	    p.y += sin(p.x * amp.x + shift.y * PI * 2.) * inten.y + 
-	    	   sin(p.z * waveAmp[index].z + waveShift[index].y * PI * 2.) * waveInt[index].y;
+	    	   sin(p.z * amp.z + shift.y * PI * 2.) * inten.y;
-	    p.z += sin(p.y * waveAmp[index].y + waveShift[index].z * PI * 2.) * waveInt[index].z + 
+	    p.z += sin(p.y * amp.y + shift.z * PI * 2.) * inten.z + 
-	    	   sin(p.x * waveAmp[index].x + waveShift[index].z * PI * 2.) * waveInt[index].z;
+	    	   sin(p.x * amp.x + shift.z * PI * 2.) * inten.z;
 		return p;
 	}
 	
-	vec3 twist(int index, vec3 p) {
+	vec3 twist(float amo, int axis, vec3 p) {
 	    
-	    float c = cos(twistAmount[index] * p[twistAxis[index]]);
+	    float c = cos(amo * p[axis]);
-	    float s = sin(twistAmount[index] * p[twistAxis[index]]);
+	    float s = sin(amo * p[axis]);
 	    mat2  m = mat2(c, -s, s, c);
 	    
-	    if(twistAxis[index] == 0) {
+	    if(axis == 0) {
 	    	vec2 q = m * p.yz;
 	    	return vec3(p.x, q);
 	    	
-	    } else if(twistAxis[index] == 1) {
+	    } else if(axis == 1) {
 	    	vec2 q = m * p.xz;
 	    	return vec3(q.x, p.y, q.y);
 	    	
-	    } else if(twistAxis[index] == 2) {
+	    } else if(axis == 2) {
 	    	vec2 q = m * p.xy;
 	    	return vec3(q, p.z);
 	    	
@@ -410,9 +414,16 @@ mat3 rotMatrix, irotMatrix;
 	    return p;
 	}
 	
-	float opSmoothUnion( float d1, float d2, float k ) {
+#endregion
-	    float h = clamp( 0.5 + 0.5 * (d2 - d1) / k, 0.0, 1.0 );
+
-	    return mix( d2, d1, h ) - k * h * (1.0 - h);
+#region ////============ Combine =============
+
+	vec2 smin( float a, float b, float k ) {
+	    float h = 1.0 - min( abs(a - b) / (4.0 * k), 1.0 );
+	    float w = h * h;
+	    float m = w * 0.5;
+	    float s = w * k;
+	    return (a < b) ? vec2(a - s, m) : vec2(b - s, 1.0 - m);
 	}
 	
 	float opSmoothSubtraction( float d1, float d2, float k ) {
@@ -432,10 +443,10 @@ mat3 rotMatrix, irotMatrix;
 	float round(float v) { return fract(v) >= 0.5? ceil(v) : floor(v); }
 	vec3  round(vec3  v) { return vec3(round(v.x), round(v.y), round(v.z)); }
 	
-	vec3 tilePosition(int index, vec3 p) {
+	vec3 tilePosition(vec3 amount, vec3 size, vec3 p) {
-		if(tileAmount[index] == vec3(0.)) 
+		if(amount == vec3(0.)) 
-			return p - tileSize[index] * round(p / tileSize[index]);
+			return p - size * round(p / size);
-		 return p - tileSize[index] * clamp(round(p / tileSize[index]), -tileAmount[index], tileAmount[index]);
+		return p - size * clamp(round(p / size), -amount, amount);
 	}
 
 #endregion
@@ -471,12 +482,12 @@ float sceneSDF(int index, vec3 p) {
 	p -= position[index];
     p =  irotMatrix * p;
 	
-    p = wave(index, p);
+    p = wave(waveAmp[index], waveShift[index], waveInt[index], p);
     
     if(tileSize[index] != vec3(0.))
-    	p = tilePosition(index, p);
+    	p = tilePosition(tileAmount[index], tileSize[index], p);
     
-    p = twist(index, p);
+    p = twist(twistAmount[index], twistAxis[index], p);
     
     vec4 el = vec4(0.);
     
@@ -520,19 +531,102 @@ float sceneSDF(int index, vec3 p) {
     return d;
 }
 
-vec3 normal(int index, vec3 p) {
+float operateSceneSDF(vec3 p, out vec3 blendIndx) {
+	blendIndx = vec3(0.);
+	
+	if(operations[0] == -1)
+		return sceneSDF(0, p);
+	
+	float depth[MAX_OP];
+	float index[MAX_OP];
+	
+	float d1, d2, o1, o2;
+	float merge;
+	int top = 0;
+	int opr = 0;
+	
+	for(int i = 0; i < opLength; i++) {
+		opr = operations[i];
+		merge = opArgument[i];
+		
+		if(opr < 100) {
+			depth[top] = sceneSDF(opr, p);
+			index[top] = float(opr);
+			top++;
+			
+		} else {
+			top--;
+			d1 = depth[top];
+			o1 = index[top];
+			
+			top--;
+			d2 = depth[top];
+			o2 = index[top];
+			
+			if(opr == 100) {
+				if(d1 < d2) {
+					depth[top] = d1;
+					index[top] = o1;
+				 blendIndx.x = o1;
+				 blendIndx.z = 0.;
+					
+				} else {
+					depth[top] = d2;
+					index[top] = o2;
+				 blendIndx.x = o2;
+				 blendIndx.z = 0.;
+					
+				}
+				
+				top++;
+				
+			} else if(opr == 101) {
+				vec2 m = smin(d1, d2, merge);
+				blendIndx.x = o1;
+				blendIndx.y = o2;
+				blendIndx.z = m.y;
+				
+				depth[top]  = m.x;
+				index[top]  = d1 < d2? o1 : o2;
+				
+			} else if(opr == 102) {
+				float m = opSmoothSubtraction(d1, d2, merge);
+				blendIndx.x = o1;
+				blendIndx.z = 0.;
+				
+				depth[top]  = m;
+				index[top]  = o1;
+				
+			} else if(opr == 103) {
+				float m = opSmoothIntersection(d1, d2, merge);
+				blendIndx.x = o1;
+				blendIndx.z = 0.;
+				
+				depth[top]  = m;
+				index[top]  = o1;
+				
+			}
+		}
+	}
+	
+	return depth[0];
+}
+
+vec3 normal(vec3 p) {
+	vec3 b;
+	
     return normalize(vec3(
-        sceneSDF(index, vec3(p.x + EPSILON, p.y, p.z)) - sceneSDF(index, vec3(p.x - EPSILON, p.y, p.z)),
+        operateSceneSDF(vec3(p.x + EPSILON, p.y, p.z), b) - operateSceneSDF(vec3(p.x - EPSILON, p.y, p.z), b),
-        sceneSDF(index, vec3(p.x, p.y + EPSILON, p.z)) - sceneSDF(index, vec3(p.x, p.y - EPSILON, p.z)),
+        operateSceneSDF(vec3(p.x, p.y + EPSILON, p.z), b) - operateSceneSDF(vec3(p.x, p.y - EPSILON, p.z), b),
-        sceneSDF(index, vec3(p.x, p.y, p.z + EPSILON)) - sceneSDF(index, vec3(p.x, p.y, p.z - EPSILON))
+        operateSceneSDF(vec3(p.x, p.y, p.z + EPSILON), b) - operateSceneSDF(vec3(p.x, p.y, p.z - EPSILON), b)
     ));
 }
 
-float march(int index, vec3 camera, vec3 direction) {
+float march(vec3 camera, vec3 direction, out vec3 blendIndx) {
 	float depth = viewRange.x;
     
     for (int i = 0; i < MAX_MARCHING_STEPS; i++) {
-        float dist = sceneSDF(index, camera + depth * direction);
+        float dist = operateSceneSDF(camera + depth * direction, blendIndx);
         if (dist < EPSILON) 
 			return depth;
         
@@ -544,46 +638,69 @@ float march(int index, vec3 camera, vec3 direction) {
   return viewRange.y;  
 }
 
-float marchDensity(int index, vec3 camera, vec3 direction) {
+float marchDensity(vec3 camera, vec3 direction) {
 	float st   = 1. / float(MAX_MARCHING_STEPS);
 	float dens = 0.;
-	float stp  = volumeDensity[index] == 0. ? 0. : pow(2., 10. * volumeDensity[index] * 0.5 - 10.);
+	vec3  blendIndx;
 	  
     for (int i = 0; i <= MAX_MARCHING_STEPS; i++) {
         float depth = mix(viewRange.x, viewRange.y, float(i) * st);
         vec3  pos   = camera + depth * direction;
-        float hit   = sceneSDF(index, pos);
+        float hit   = operateSceneSDF(pos, blendIndx);
-        float inst  = (pos.y + objectScale[index]) / (objectScale[index] * 2.);
-              inst  = inst <= 0.? 0. : pow(2., 10. * inst - 10.) * 10.;
         
-        if (hit <= 0.) dens += stp;
+        if (hit <= 0.) {
+        	float dens  = volumeDensity[int(floor(blendIndx.x))];
+        	float stp   = dens == 0. ? 0. : pow(2., 10. * dens * 0.5 - 10.);
+        	
+        	dens += stp;
+        }
     }
     
     return dens;
 }
 
-vec4 scene(int index, out float depth, out vec3 coll, out vec3 norm) {
+vec4 scene() {
-	depth = 0.;
+    mat3 rx = rotateX(camRotation.x);
+    mat3 ry = rotateY(camRotation.y);
+    mat3 rz = rotateZ(camRotation.z);
+    mat3 camRotMatrix  = rx * ry * rz;
+    mat3 camIrotMatrix = inverse(camRotMatrix);
     
     float dz  = 1. / tan(radians(fov) / 2.);
     vec3  dir = normalize(vec3((v_vTexcoord - .5) * 2., -dz));
     vec3  eye = vec3(0., 0., 5.);
 	
-	if(volumetric[index] == 1) {
+    dir  = normalize(camIrotMatrix * dir) / camScale;
-		float _dens = clamp(marchDensity(index, eye, dir), 0., 1.);
+	eye  = camIrotMatrix * eye;
-		return diffuseColor[index] * _dens;
+	eye /= camScale;
+	
+	if(volumetric[0] == 1) {
+		float _dens = clamp(marchDensity(eye, dir), 0., 1.);
+		return diffuseColor[0] * _dens;
 	}
 	
-    depth = march(index, eye, dir);
+	vec3  blendIndx;
-    coll  = eye + dir * depth;
+    float depth = march(eye, dir, blendIndx);
-    norm  = normal(index, coll);
+    
+    int   idx0  = int(floor(blendIndx.x));
+    int   idx1  = int(floor(blendIndx.y));
+    float rat   = blendIndx.z;
+    
+    vec3 coll  = eye + dir * depth;
+    vec3 norm  = normal(coll);
     
     if(depth > viewRange.y - EPSILON) // Not hitting anything.
         return vec4(0.);
     
-    vec3 c = useTexture[index] == 1? 
+    vec3 c0 = useTexture[idx0] == 1? 
-    	boxmap(int(TEXTURE_S) + index, irotMatrix * coll * textureScale[index], irotMatrix * norm, triplanar[index]).rgb * diffuseColor[index].rgb : 
+    	boxmap(int(TEXTURE_S) + idx0, irotMatrix * coll * textureScale[idx0], irotMatrix * norm, triplanar[idx0]).rgb * diffuseColor[idx0].rgb : 
-    	diffuseColor[index].rgb;
+    	diffuseColor[idx0].rgb;
+    
+    vec3 c1 = useTexture[idx1] == 1? 
+    	boxmap(int(TEXTURE_S) + idx1, irotMatrix * coll * textureScale[idx1], irotMatrix * norm, triplanar[idx1]).rgb * diffuseColor[idx1].rgb : 
+    	diffuseColor[idx1].rgb;
+    
+    vec3 c = mix(c0, c1, rat);
     
     ///////////////////////////////////////////////////////////
     
@@ -597,7 +714,7 @@ vec4 scene(int index, out float depth, out vec3 coll, out vec3 norm) {
     if(useEnv == 1) {
     	vec3 ref  = reflect(dir, norm);
 		vec4 refC = sampleTexture(0, equirectangularUv(ref));
-		c = mix(c, c * refC.rgb, reflective[index]);
+		c = mix(c, c * refC.rgb, mix(reflective[idx0], reflective[idx1], rat));
     }
 	
     ///////////////////////////////////////////////////////////
@@ -619,66 +736,12 @@ vec4 blend(in vec4 bg, in vec4 fg) {
 	return res;
 }
 
-vec4 operate() {
-	vec4  color[MAX_OP];
-	vec3  colis[MAX_OP];
-	vec3  norml[MAX_OP];
-	float depth[MAX_OP];
-	
-	int top = 0;
-	int opr = 0;
-	
-	float d1, d2, dm, rt;
-	vec3  n1, n2, cl;
-	vec4  c1, c2;
-	float yy = viewRange.y - EPSILON;
-	
-	for(int i = 0; i < opLength; i++) {
-		opr = operations[i];
-		
-		if(opr < 100) {
-			color[top] = scene(opr, d1, cl, n1);
-			depth[top] = d1;
-			colis[top] = cl;
-			norml[top] = n1;
-			top++;
-			
-		} else {
-			top--;
-			c1 = color[top];
-			d1 = depth[top];
-			n1 = norml[top];
-			
-			top--;
-			c2 = color[top];
-			d2 = depth[top];
-			n2 = norml[top];
-			
-			if(opr == 100) {
-				if(d1 < d2) {
-					color[top] = c1;
-					depth[top] = d1;
-					norml[top] = n1;
-				} else {
-					color[top] = c2;
-					depth[top] = d2;
-					norml[top] = n2;
-				}
-				top++;
-			}
-		}
-	}
-	
-	return color[0];
-}
-
 void main() {
 	
 	vec4 bg = background;
 	if(useEnv == 1) {
 		float  edz  = 1. / tan(radians(fov * 2.) / 2.);
 		vec3   edir = normalize(vec3((v_vTexcoord - .5) * 2., -edz));
-		       //edir = normalize(irotMatrix * edir) / objectScale[index];
 		
 		vec2 envUV = equirectangularUv(edir);
 		vec4 endC  = sampleTexture(0, envUV);
@@ -686,13 +749,7 @@ void main() {
 	}
 	
 	vec4 result = drawBg == 1? bg : vec4(0.);
-	float d;
+		 result = blend(result, scene());
-	vec3  c, n;
-	
-	if(operations[0] == -1)
-		result = blend(result, scene(0, d, c, n));
-	else
-		result = blend(result, operate());
 	
     //////////////////////////////////////////////////