Added scripts and models for DataCompressionTest 1 and 2

2026-06-10 03:07:34 +01:00
parent 891781366d
commit ebecdfad1d
14 changed files with 1490 additions and 1 deletions
@@ -0,0 +1,145 @@
+local module = {}
+
+local function form_triangle(pa,pb,p1,p2,p3,s2)
+	local s1 = pa.Size.X
+	s2 = s2 or s1*0.5
+	local p12 = p2-p1
+	local p23 = p3-p2
+	local p13 = p3-p1
+	local p12l = p12.Magnitude
+	local p23l = p23.Magnitude
+	local p13l = p13.Magnitude
+	local bottom
+	local bot_len
+	local totop
+	local root
+	local tip
+	local far
+	if p12l > p23l and p12l > p13l then -- TRUE: p12 largest FALSE: p12 smaller than p23l or p13l
+		tip = p3
+		root = p1
+		far = p2
+		bottom = p12
+		bot_len = p12l
+		totop = p13
+		s2 = -s2
+	elseif p23l > p13l then -- TRUE: p23 must be largest FALSE: p13 largest
+		tip = p1
+		root = p2
+		far = p3
+		bottom = p23
+		bot_len = p23l
+		totop = -p12
+		s2 = -s2
+	else -- p13 largest
+		tip = p2
+		root = p1
+		far = p3
+		bottom = p13
+		bot_len = p13l
+		totop = p12
+	end
+	bottom = bottom.Unit
+	local coeff = totop:Dot(bottom)
+	local mid = root+coeff*bottom
+	local cross = totop:Cross(bottom).Unit
+	local top = (mid-tip)
+	pa.Size = Vector3.new(s1,top.Magnitude,coeff)
+	pb.Size = Vector3.new(s1,top.Magnitude,bot_len - coeff)
+	top = top.Unit
+	pa.CFrame = CFrame.fromMatrix(s2*cross+(root+tip)*0.5,cross,-top,bottom)
+	pb.CFrame = CFrame.fromMatrix(s2*cross+(tip+far)*0.5,-cross,-top,-bottom)
+end
+local function form_normal(p,n)
+	local part = Instance.new("Part")
+	part.Anchored = true
+	part.Size = Vector3.new(1,1,10)
+	part.Parent = game.Workspace
+	part.CFrame = CFrame.lookAlong(p,n) * CFrame.new(0,0,-5)
+end
+local w = 8
+local grass = script.Grass
+local ter = workspace.Terrain
+function module.make_wedges(_,p)
+	local part = grass:Clone()
+	for _,item in pairs(part:GetChildren()) do
+		for k,v in pairs(p) do
+			item[k] = v
+		end
+	end
+	return {
+		make_quad = function(p1,p2,p3,p4,s,n1,n2,n3,n4,parent)
+			local g = part:Clone()
+			g.Parent = parent
+			form_triangle(g.a,g.b,p1,p2,p3,s*(-w/2))
+			form_triangle(g.c,g.d,p1,p4,p3,s*(w/2))
+			--[[form_normal(p1,n1)
+			form_normal(p2,n2)
+			form_normal(p3,n3)
+			form_normal(p4,n4)]]
+			return g		
+		end,
+		flush = function() end,
+	}
+end
+
+local assets = game:GetService("AssetService") 
+local s = 1
+function module.make_mesh(_root,p)
+	local mesh = assets:CreateEditableMesh()
+	local empty = true
+	local root = _root or Vector3.zero
+	local mesh = mesh
+	local topleft = mesh:AddUV(Vector2.new(0,0))
+	local topright = mesh:AddUV(Vector2.new(s,0))
+	local bottomright = mesh:AddUV(Vector2.new(s,s))
+	local bottomleft = mesh:AddUV(Vector2.new(0,s))
+	return {
+		make_quad = function(p1,p2,p3,p4,s,n1,n2,n3,n4)
+			empty = false
+			n1 = mesh:AddNormal(n1)
+			n2 = mesh:AddNormal(n2)
+			n3 = mesh:AddNormal(n3)
+			n4 = mesh:AddNormal(n4)
+			p1 = mesh:AddVertex(p1 - root)
+			p2 = mesh:AddVertex(p2 - root)
+			p3 = mesh:AddVertex(p3 - root)
+			p4 = mesh:AddVertex(p4 - root)
+			local tri1,tri2
+			if s > 0 then
+				tri1 = mesh:AddTriangle(p1,p2,p3)
+				tri2 = mesh:AddTriangle(p3,p4,p1)
+				mesh:SetFaceNormals(tri1,{n1,n2,n3})
+				mesh:SetFaceNormals(tri2,{n3,n4,n1})
+				mesh:SetFaceUVs(tri1,{topleft,topright,bottomright})
+				mesh:SetFaceUVs(tri2,{bottomright,bottomleft,topleft})
+			else
+				tri1 = mesh:AddTriangle(p3,p2,p1)
+				tri2 = mesh:AddTriangle(p1,p4,p3)
+				mesh:SetFaceNormals(tri1,{n3,n2,n1})
+				mesh:SetFaceNormals(tri2,{n1,n4,n3})
+				mesh:SetFaceUVs(tri1,{bottomright,topright,topleft})
+				mesh:SetFaceUVs(tri2,{topleft,bottomleft,bottomright})
+			end
+		end,
+		flush = function()
+			if not empty then
+				local part = assets:CreateMeshPartAsync(Content.fromObject(mesh),
+					{
+						CollisionFidelity = Enum.CollisionFidelity.PreciseConvexDecomposition,
+						RenderFidelity = Enum.RenderFidelity.Performance
+					})
+				for index,item in pairs(p) do
+					part[index] = item
+				end
+				part.Parent = workspace.Terrain
+				part.Position = root
+				part.Anchored = true
+			end
+			root = nil
+			mesh = nil
+		end,
+	}
+end
+
+return module