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More work on uv unwrapping.

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This commit is contained in:
Relintai 2021-09-27 12:52:33 +02:00
parent a2208d0489
commit 660933915b
1 changed files with 34 additions and 3 deletions
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35
game/addons/mesh_data_resource_editor/plugin.gd
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@ -158,6 +158,10 @@ class STriangle:
var n2 : Vector3 var n2 : Vector3
var n3 : Vector3 var n3 : Vector3
var neighbour_v1_v2 : int = -1
var neighbour_v2_v3 : int = -1
var neighbour_v1_v3 : int = -1
var face_normal : Vector3 var face_normal : Vector3
var basis : Basis var basis : Basis
@ -200,8 +204,6 @@ class STriangle:
vn1 = v1 - v2 vn1 = v1 - v2
vn2 = Vector3() #v2 - v2 vn2 = Vector3() #v2 - v2
print_nverts()
face_normal = vn1.cross(vn3).normalized() face_normal = vn1.cross(vn3).normalized()
# face normal has to end up the y coordinate in the world coordinate system a.k.a 0 1 0 # face normal has to end up the y coordinate in the world coordinate system a.k.a 0 1 0
@ -220,6 +222,12 @@ class STriangle:
uv2 = Vector2(vn2.x, vn2.z) uv2 = Vector2(vn2.x, vn2.z)
uv3 = Vector2(vn3.x, vn3.z) uv3 = Vector2(vn3.x, vn3.z)
func has_edge(pi1 : int, pi2 : int):
if i1 == pi1 || i2 == pi1 || i3 == pi1:
if i1 == pi2 || i2 == pi2 || i3 == pi2:
return true
return false
func print(): func print():
print("[ Tri: " + str(i1) + ", " + str(i2) + ", " + str(i3) + ", " + str(index) + " ]") print("[ Tri: " + str(i1) + ", " + str(i2) + ", " + str(i3) + ", " + str(index) + " ]")
@ -236,6 +244,10 @@ class STriangle:
func print_normals(): func print_normals():
print("[ Tri normals: " + str(n1) + ", " + str(n2) + ", " + str(n3) + " ]") print("[ Tri normals: " + str(n1) + ", " + str(n2) + ", " + str(n3) + " ]")
func print_neighbours():
print("[ Tri neighbours: " + str(neighbour_v1_v2) + ", " + str(neighbour_v2_v3) + ", " + str(neighbour_v1_v3) + " ]")
class SMesh: class SMesh:
var indices : PoolIntArray var indices : PoolIntArray
var vertices : PoolVector3Array var vertices : PoolVector3Array
@ -259,11 +271,30 @@ class SMesh:
func unwrap(): func unwrap():
project_vertices() project_vertices()
find_neighbours()
func project_vertices(): func project_vertices():
for t in triangles: for t in triangles:
t.project_vertices() t.project_vertices()
func find_neighbours():
for i in range(triangles.size()):
var t = triangles[i]
t.neighbour_v1_v2 = find_neighbour(i, t.i1, t.i2)
t.neighbour_v2_v3 = find_neighbour(i, t.i2, t.i3)
t.neighbour_v1_v3 = find_neighbour(i, t.i1, t.i3)
func find_neighbour(current_index : int, i1 : int, i2 : int):
for i in range(triangles.size()):
if current_index == i:
continue
if triangles[i].has_edge(i1, i2):
return i
return -1
func print(): func print():
print("[ SMesh:") print("[ SMesh:")