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Comments from sdf3d_boolean.mmg.

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Relintai 2021-10-12 12:24:38 +02:00
parent d75ee3dac2
commit 4ee9c69d15
2 changed files with 30 additions and 71 deletions
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31
game/addons/mat_maker_gd/nodes/common/sdf3d.gd
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@ -142,7 +142,7 @@ const Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd")
#X: $axis = length($uv.yz)-$R,$uv.x
#Y: $axis = length($uv.zx)-$R,$uv.y
#Z: $axis = length($uv.xy)-$R,$uv.z
#vec2 $(name_uv)_q = vec2($axis);\n
#vec2 $(name_uv)_q = vec2($axis);
#Output (sdf3dc) - Shows the torus
#length($(name_uv)_q)-$r
@ -152,6 +152,23 @@ const Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd")
#R, float, min: 0, max: 1, default:0.5, step:0.01
#r, float, min: 0, max: 1, default:0.1, step:0.01
#----------------------
#sdf3d_boolean.mmg
#Outputs:
#Union: $op = sdf3dc_union
#Subtraction $op = sdf3dc_sub
#Intersection $op = sdf3dc_inter
#Output (sdf3dc) - The shape generated by the boolean operation
#$op($in1($uv), $in2($uv))
#Inputs:
#axis, enum, default: 2, values: Union, Subtraction, Intersection
#in1, vec2, default:vec2(100, 0.0), (sdf3d input)
#in2, vec2, default:vec2(100, 0.0), (sdf3d input)
static func raymarch(uv : Vector2) -> Color:
var d : Vector2 = sdf3d_raymarch(uv);
@ -343,12 +360,24 @@ static func sdf3d_normal(p : Vector3) -> Vector3:
return Vector3(-1.0, -1.0, -1.0) * n.normalized();
#vec2 sdf3dc_union(vec2 a, vec2 b) {
# return vec2(min(a.x, b.x), mix(b.y, a.y, step(a.x, b.x)));
#}
static func sdf3dc_union(a : Vector2, b : Vector2) -> Vector2:
return Vector2(min(a.x, b.x), lerp(b.y, a.y, Commons.step(a.x, b.x)));
#vec2 sdf3dc_sub(vec2 a, vec2 b) {
# return vec2(max(-a.x, b.x), a.y);
#}
static func sdf3dc_sub(a : Vector2, b : Vector2) -> Vector2:
return Vector2(max(-a.x, b.x), a.y);
#vec2 sdf3dc_inter(vec2 a, vec2 b) {
# return vec2(max(a.x, b.x), mix(a.y, b.y, step(a.x, b.x)));
#}
static func sdf3dc_inter(a : Vector2, b : Vector2) -> Vector2:
return Vector2(max(a.x, b.x), lerp(a.y, b.y, Commons.step(a.x, b.x)));

70
game/addons/mat_maker_gd/nodes/material_maker_nodes/sdf3d_boolean.mmg
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@ -1,70 +0,0 @@
{
"name": "sdf3d_boolean",
"node_position": {
"x": 0,
"y": 0
},
"parameters": {
"op": 0
},
"seed_value": 60292,
"shader_model": {
"code": "",
"global": "vec2 sdf3dc_union(vec2 a, vec2 b) {\n\treturn vec2(min(a.x, b.x), mix(b.y, a.y, step(a.x, b.x)));\n}\nvec2 sdf3dc_sub(vec2 a, vec2 b) {\n\treturn vec2(max(-a.x, b.x), a.y);\n}\nvec2 sdf3dc_inter(vec2 a, vec2 b) {\n\treturn vec2(max(a.x, b.x), mix(a.y, b.y, step(a.x, b.x)));\n}\n",
"inputs": [
{
"default": "vec2(100.0, 0.0)",
"label": "",
"longdesc": "The first shape, defined as a signed distance function",
"name": "in1",
"shortdesc": "Input1",
"type": "sdf3dc"
},
{
"default": "vec2(100.0, 0.0)",
"label": "",
"longdesc": "The second shape, defined as a signed distance function",
"name": "in2",
"shortdesc": "Input2",
"type": "sdf3dc"
}
],
"instance": "",
"longdesc": "Performs a boolean operation (union, intersection or difference) between two shapes",
"name": "Boolean",
"outputs": [
{
"longdesc": "The shape generated by the boolean operation",
"sdf3dc": "$op($in1($uv), $in2($uv))",
"shortdesc": "Output",
"type": "sdf3dc"
}
],
"parameters": [
{
"default": 2,
"label": "",
"longdesc": "The operation performed by this node",
"name": "op",
"shortdesc": "Operation",
"type": "enum",
"values": [
{
"name": "Union",
"value": "sdf3dc_union"
},
{
"name": "Subtraction",
"value": "sdf3dc_sub"
},
{
"name": "Intersection",
"value": "sdf3dc_inter"
}
]
}
],
"shortdesc": "Boolean"
},
"type": "shader"
}