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Attention | Topic was automatically imported from the old Question2Answer platform. |
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Asked By | Anyu137 |
Hi, I’m new to UV mapping and I’m having some problems.
I made a StandardMaterial3D with a 4x4 texture. I’m trying to put that texture in all faces of a cube,but it had a little problem
my codes:
->MeshGEN:
extends MeshInstance3D
@tool
var voxelMap=[]
var surfacetool:SurfaceTool=SurfaceTool.new()
# Called when the node enters the scene tree for the first time.
func _ready()->void:
voxelMap.resize(VoxelData.ChunkWidth)
for i in range(VoxelData.ChunkWidth):
voxelMap[i]=[]
voxelMap[i].resize(VoxelData.ChunkHeight)
for j in range(VoxelData.ChunkHeight):
voxelMap[i][j]=[]
voxelMap[i][j].resize(VoxelData.ChunkWidth)
surfacetool.begin(Mesh.PRIMITIVE_TRIANGLES)
PopulateVoxelMap()
CreateMeshData()
CreateMesh()
func PopulateVoxelMap()->void:
for x in range(VoxelData.ChunkWidth):
for y in range(VoxelData.ChunkHeight):
for z in range(VoxelData.ChunkWidth):
voxelMap[x][y][z] = true;
func CreateMeshData()->void:
for x in range(VoxelData.ChunkWidth):
for y in range(VoxelData.ChunkHeight):
for z in range(VoxelData.ChunkWidth):
AddVoxelDataToChunk(Vector3(x, y, z))
func AddVoxelDataToChunk(pos:Vector3)->void:
var t=[3, 1, 0,3, 2, 1]
for i in range(6):
if (!CheckVoxel(pos + VoxelData.faceChecks[i])):
for j in range(6):
surfacetool.set_normal(VoxelData.normals[i])
surfacetool.set_uv(VoxelData.voxelUvs[j])#VoxelData.voxelUvs[t[j]])
surfacetool.add_vertex(pos + VoxelData.voxelVerts[VoxelData.voxelTris[i][j]])
func CreateMesh():
mesh = ArrayMesh.new()
surfacetool.generate_normals()
surfacetool.generate_tangents()
surfacetool.index()
mesh = surfacetool.commit()
func CheckVoxel(pos:Vector3 )->bool:
var x = round(pos.x)
var y = round(pos.y)
var z = round(pos.z)
if ((x < 0 or x > VoxelData.ChunkWidth - 1) or (y < 0 or y > VoxelData.ChunkHeight - 1) or (z < 0 or z > VoxelData.ChunkWidth - 1)):
return false
return voxelMap[x][y][z]
->VoxelData:
extends Node
@tool
const ChunkWidth = 5
const ChunkHeight = 15
const TextureSize:float=1
const normals = [Vector3.UP,Vector3.FORWARD, Vector3.RIGHT,Vector3.BACK,Vector3.LEFT,Vector3.DOWN]
const faceChecks = [
Vector3(0.0, 1.0, 0.0),#TOP
Vector3(0.0, 0.0, 1.0),#FORWARD
Vector3(1.0, 0.0, 0.0),##RIGHT
Vector3(0.0, 0.0, -1.0),#BACK
Vector3(-1.0, 0.0, 0.0),#LEFT
Vector3(0.0, -1.0, 0.0)#Bottom
]
const voxelVerts = [
Vector3(0.0, 1.0, 0.0),
Vector3(1.0, 1.0, 0.0),
Vector3(1.0, 1.0, 1.0),
Vector3(0.0, 1.0, 1.0),
Vector3(0.0, 0.0, 0.0),
Vector3(1.0, 0.0, 0.0),
Vector3(1.0, 0.0, 1.0),
Vector3(0.0, 0.0, 1.0)
]
const voxelTris = [
# 0 1 2 2 1 3
[0,1,2,0,2,3],#TOP
[3,2,7,2,6,7],#FORWARD
[2,1,6,1,5,6],#RIGHT
[1,4,5,1,0,4],#BACK
[0,3,7,4,0,7], #LEFT
[6,5,4,4,7,6]#Bottom
]
var voxelUvs = [
Vector2(0,TextureSize),
Vector2(0,0),
Vector2( TextureSize,0),
Vector2(0, TextureSize),
Vector2( TextureSize,0),
Vector2( TextureSize, TextureSize),
]
Image of Result: