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Notes from sdf3d_box.mmg.

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Relintai 2021-10-11 13:30:58 +02:00
parent b04d8b7fc6
commit 3f12c7c23e
2 changed files with 18 additions and 83 deletions
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18
game/addons/mat_maker_gd/nodes/common/sdf3d.gd
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@ -3,6 +3,21 @@ extends Reference
const Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd") const Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd")
#----------------------
#sdf3d_box.mmg
#Outputs:
#Common
#vec3 $(name_uv)_q = abs($uv) - vec3($sx, $sy, $sz);
#Output (sdf3d) - Shows the rounded box
#length(max($(name_uv)_q,0.0))+min(max($(name_uv)_q.x,max($(name_uv)_q.y,$(name_uv)_q.z)),0.0)-$r
#Inputs:
#size, vector3, min: 0, max: 1, default:0.5, step:0.01
#size, float, min: 0, max: 1, default:0.5, step:0.01
static func raymarch(uv : Vector2) -> Color: static func raymarch(uv : Vector2) -> Color:
var d : Vector2 = sdf3d_raymarch(uv); var d : Vector2 = sdf3d_raymarch(uv);
@ -27,6 +42,9 @@ static func sdf3d_sphere(p : Vector3, r : float) -> Vector2:
return Vector2(s, 0.0); return Vector2(s, 0.0);
#vec3 $(name_uv)_q = abs($uv) - vec3($sx, $sy, $sz);
#length(max($(name_uv)_q,0.0))+min(max($(name_uv)_q.x,max($(name_uv)_q.y,$(name_uv)_q.z)),0.0)-$r
static func sdf3d_box(p : Vector3, sx : float, sy : float, sz : float, r : float) -> Vector2: static func sdf3d_box(p : Vector3, sx : float, sy : float, sz : float, r : float) -> Vector2:
var v : Vector3 = Commons.absv3((p)) - Vector3(sx, sy, sz); var v : Vector3 = Commons.absv3((p)) - Vector3(sx, sy, sz);
var f : float = (Commons.maxv3(v,Vector3())).length() + min(max(v.x,max(v.y, v.z)),0.0) - r; var f : float = (Commons.maxv3(v,Vector3())).length() + min(max(v.x,max(v.y, v.z)),0.0) - r;

83
game/addons/mat_maker_gd/nodes/material_maker_nodes/sdf3d_box.mmg
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@ -1,83 +0,0 @@
{
"name": "sdf3d_box",
"node_position": {
"x": 0,
"y": 0
},
"parameters": {
"r": 0.01,
"sx": 0.3,
"sy": 0.25,
"sz": 0.25
},
"shader_model": {
"code": "vec3 $(name_uv)_q = abs($uv) - vec3($sx, $sy, $sz);\n",
"global": "",
"inputs": [
],
"instance": "",
"longdesc": "Generates a rounded box as a signed distance function",
"name": "Box",
"outputs": [
{
"longdesc": "Shows the rounded box",
"sdf3d": "length(max($(name_uv)_q,0.0))+min(max($(name_uv)_q.x,max($(name_uv)_q.y,$(name_uv)_q.z)),0.0)-$r",
"shortdesc": "Output",
"type": "sdf3d"
}
],
"parameters": [
{
"control": "Rect1.x",
"default": 0.5,
"label": "Size X",
"longdesc": "The size of the box along the X axis",
"max": 1,
"min": 0,
"name": "sx",
"shortdesc": "Size.x",
"step": 0.01,
"type": "float"
},
{
"control": "Rect1.y",
"default": 0.5,
"label": "Size Y",
"longdesc": "The size of the box along the Y axis",
"max": 1,
"min": 0,
"name": "sy",
"shortdesc": "Size.y",
"step": 0.01,
"type": "float"
},
{
"control": "None",
"default": 0.5,
"label": "Size Z",
"longdesc": "The size of the box along the Z axis",
"max": 1,
"min": 0,
"name": "sz",
"shortdesc": "Size.z",
"step": 0.01,
"type": "float"
},
{
"control": "None",
"default": 0.5,
"label": "Radius",
"longdesc": "The radius of the rounded box",
"max": 1,
"min": 0,
"name": "r",
"shortdesc": "Radius",
"step": 0.01,
"type": "float"
}
],
"shortdesc": "Box"
},
"type": "shader"
}