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Notes for the beehive pattern.

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Relintai 2021-10-11 11:01:42 +02:00
parent f6e1207c3e
commit d6148fd43c
2 changed files with 39 additions and 72 deletions
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42
game/addons/mat_maker_gd/nodes/common/patterns.gd
View File

@ -3,6 +3,11 @@ extends Reference
const Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd")
#beehive.mmg
#Outputs: 3 beehive_1c, beehive_2c, beehive_3c
#Inputs:
#size, vector2, default: 2, min: 1, max: 64, step: 1
enum CombinerAxisType {
SINE,
TRIANGLE,
@ -208,6 +213,12 @@ static func IChing(uv : Vector2, pseed : float) -> float:
return base * Commons.step(0.1*Commons.step(float(bit & value), 0.5), Commons.fract(uv.x+0.55));
#Beehive output 1
#Shows the greyscale pattern
#vec2 $(name_uv)_uv = $uv*vec2($sx, $sy*1.73205080757);
#vec4 $(name_uv)_center = beehive_center($(name_uv)_uv);
#1.0-2.0*beehive_dist($(name_uv)_center.xy)
static func beehive_1c(uv : Vector2, size : Vector2, pseed : int) -> Color:
var o80035_0_uv : Vector2 = uv * Vector2(size.x, size.y * 1.73205080757);
var center : Color = beehive_center(o80035_0_uv);
@ -215,7 +226,13 @@ static func beehive_1c(uv : Vector2, size : Vector2, pseed : int) -> Color:
var f : float = 1.0 - 2.0 * beehive_dist(Vector2(center.r, center.g));
return Color(f, f, f, 1)
#Beehive output 2
#Shows a random color for each hexagonal tile
#vec2 $(name_uv)_uv = $uv*vec2($sx, $sy*1.73205080757);
#vec4 $(name_uv)_center = beehive_center($(name_uv)_uv);
#rand3(fract($(name_uv)_center.zw/vec2($sx, $sy))+vec2(float($seed)))
static func beehive_2c(uv : Vector2, size : Vector2, pseed : int) -> Color:
var o80035_0_uv : Vector2 = uv * Vector2(size.x, size.y * 1.73205080757);
var center : Color = beehive_center(o80035_0_uv);
@ -226,6 +243,12 @@ static func beehive_2c(uv : Vector2, size : Vector2, pseed : int) -> Color:
return Color(v.x, v.y, v.z, 1)
#Beehive output 3
#Shows an UV map to be connected to the UV map port of the Custom UV node
#vec3(vec2(0.5)+$(name_uv)_center.xy, rand(fract($(name_uv)_center.zw/vec2($sx, $sy))+vec2(float($seed))))
#vec2 $(name_uv)_uv = $uv*vec2($sx, $sy*1.73205080757);
#vec4 $(name_uv)_center = beehive_center($(name_uv)_uv);
static func beehive_3c(uv : Vector2, size : Vector2, pseed : int) -> Color:
var o80035_0_uv : Vector2 = uv * Vector2(size.x, size.y * 1.73205080757);
var center : Color = beehive_center(o80035_0_uv);
@ -239,6 +262,12 @@ static func beehive_3c(uv : Vector2, size : Vector2, pseed : int) -> Color:
return c
#float beehive_dist(vec2 p){
# ec2 s = vec2(1.0, 1.73205080757);
# p = abs(p);
# return max(dot(p, s*.5), p.x);
#}
static func beehive_dist(p : Vector2) -> float:
var s : Vector2 = Vector2(1.0, 1.73205080757);
@ -246,6 +275,13 @@ static func beehive_dist(p : Vector2) -> float:
return max(p.dot(s*.5), p.x);
#vec4 beehive_center(vec2 p) {
# vec2 s = vec2(1.0, 1.73205080757);
# vec4 hC = floor(vec4(p, p - vec2(.5, 1)) / vec4(s,s)) + .5;
# vec4 h = vec4(p - hC.xy*s, p - (hC.zw + .5)*s);
# return dot(h.xy, h.xy)<dot(h.zw, h.zw) ? vec4(h.xy, hC.xy) : vec4(h.zw, hC.zw + 9.73);
#}
static func beehive_center(p : Vector2) -> Color:
var s : Vector2 = Vector2(1.0, 1.73205080757);
@ -466,7 +502,7 @@ static func bricks_sb(uv : Vector2, count : Vector2, repeat : float, offset : fl
# vec2 size = bmax - bmin;
# float max_size = max(size.x, size.y);
# float min_size = min(size.x, size.y);
# mortar *= min_size;\n\tcorner *= min_size;
# mortar *= min_size;corner *= min_size;
#
# return vec3(clamp((0.5*size-vec2(mortar)-abs(uv-center))/corner, vec2(0.0), vec2(1.0)), rand(fract(center)+vec2(seed)));
#}
@ -475,7 +511,7 @@ static func bricks_sb(uv : Vector2, count : Vector2, repeat : float, offset : fl
# count *= repeat;
# float x_offset = offset*step(0.5, fract(uv.y*count.y*0.5));
# vec2 bmin = floor(vec2(uv.x*count.x-x_offset, uv.y*count.y));
# bmin.x += x_offset;\n\tbmin /= count;
# bmin.x += x_offset;bmin /= count;
#
# return vec4(bmin, bmin+vec2(1.0)/count);
#}

69
game/addons/mat_maker_gd/nodes/material_maker_nodes/beehive.mmg
View File

@ -1,69 +0,0 @@
{
"name": "beehive",
"node_position": {
"x": 0,
"y": 0
},
"parameters": {
"sx": 4,
"sy": 4
},
"shader_model": {
"code": "vec2 $(name_uv)_uv = $uv*vec2($sx, $sy*1.73205080757);\nvec4 $(name_uv)_center = beehive_center($(name_uv)_uv);",
"global": "float beehive_dist(vec2 p){\n\tvec2 s = vec2(1.0, 1.73205080757);\n p = abs(p);\n return max(dot(p, s*.5), p.x);\n}\n\nvec4 beehive_center(vec2 p) {\n\tvec2 s = vec2(1.0, 1.73205080757);\n vec4 hC = floor(vec4(p, p - vec2(.5, 1))/vec4(s,s)) + .5;\n vec4 h = vec4(p - hC.xy*s, p - (hC.zw + .5)*s);\n return dot(h.xy, h.xy)<dot(h.zw, h.zw) ? vec4(h.xy, hC.xy) : vec4(h.zw, hC.zw + 9.73);\n}\n",
"inputs": [
],
"instance": "",
"longdesc": "Draws a greyscale hexagonal tiles pattern",
"name": "Beehive",
"outputs": [
{
"f": "1.0-2.0*beehive_dist($(name_uv)_center.xy)",
"longdesc": "Shows the greyscale pattern",
"shortdesc": "Output",
"type": "f"
},
{
"longdesc": "Shows a random color for each hexagonal tile",
"rgb": "rand3(fract($(name_uv)_center.zw/vec2($sx, $sy))+vec2(float($seed)))",
"shortdesc": "Random color",
"type": "rgb"
},
{
"longdesc": "Shows an UV map to be connected to the UV map port of the Custom UV node",
"rgb": "vec3(vec2(0.5)+$(name_uv)_center.xy, rand(fract($(name_uv)_center.zw/vec2($sx, $sy))+vec2(float($seed))))",
"shortdesc": "UV map",
"type": "rgb"
}
],
"parameters": [
{
"control": "None",
"default": 2,
"label": "Size X",
"longdesc": "The number of columns of the pattern",
"max": 64,
"min": 1,
"name": "sx",
"shortdesc": "Size.x",
"step": 1,
"type": "float"
},
{
"control": "None",
"default": 2,
"label": "Size Y",
"longdesc": "The number of rows of the pattern",
"max": 64,
"min": 1,
"name": "sy",
"shortdesc": "Size.y",
"step": 1,
"type": "float"
}
],
"shortdesc": "Hexagonal tiles pattern"
},
"type": "shader"
}