glm94/terrain_generator
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Implemented the first version of the 3D engine. Added support for loading 'obj' files as a mesh.

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glm94
2020-07-14 16:53:06 -05:00
parent b318076f05
commit 05d2beb8ac
4 changed files with 75 additions and 49 deletions
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main.py
+13 -39
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@@ -3,44 +3,23 @@ import math
import copy
from matrix import Matrix4x4, Matrix3x3
from vectors import Vector4d, Vector3d, Vector2d
from engine import Mesh
ui = window.Window(600, 600)
near_plane = 0.1
far_plane = 1000.0
fov = 90.0
tris = [
# SOUTH
[ [0.0, 0.0, 0.0], [0.0, 1.0, 0.0], [1.0, 1.0, 0.0] ],
[ [0.0, 0.0, 0.0], [1.0, 1.0, 0.0], [1.0, 0.0, 0.0 ]],
# EAST
[ [1.0, 0.0, 0.0], [1.0, 1.0, 0.0], [1.0, 1.0, 1.0 ]],
[ [1.0, 0.0, 0.0], [1.0, 1.0, 1.0], [1.0, 0.0, 1.0 ]],
# NORTH
[ [1.0, 0.0, 1.0], [1.0, 1.0, 1.0], [0.0, 1.0, 1.0 ]],
[ [1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0 ]],
# WEST
[[ 0.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 1.0, 0.0 ]],
[ [0.0, 0.0, 1.0], [0.0, 1.0, 0.0], [0.0, 0.0, 0.0 ]],
# TOP
[[ 0.0, 1.0, 0.0], [0.0, 1.0, 1.0], [1.0, 1.0, 1.0 ]],
[[ 0.0, 1.0, 0.0], [1.0, 1.0, 1.0], [1.0, 1.0, 0.0 ]],
# BOTTOM
[[ 1.0, 0.0, 1.0], [0.0, 0.0, 1.0], [0.0, 0.0, 0.0 ]],
[[ 1.0, 0.0, 1.0], [0.0, 0.0, 0.0], [1.0, 0.0, 0.0 ]]
]
tris = Mesh()
def main():
tris.load_obj_file('shuttle.obj')
ui.thetax = 1
ui.window.bind('<Left>', left)
ui.window.bind('<Right>', right)
ui.window.bind('<ButtonPress-1>', mouse_start)
ui.window.bind('<B1-Motion>', mouse_end)
ui.canvas.bind('<B1-Motion>', mouse_end)
ui.canvas.old_coords = None
ui.window.after(0, draw_scene)
ui.show()
@@ -97,30 +76,25 @@ def draw_scene():
rotation_matrix_x = Matrix4x4(row0, row1, row2, row3)
for t in tris:
row0 = Vector3d(t[0][0], t[0][1], t[0][2])
row1 = Vector3d(t[1][0], t[1][1], t[1][2])
row2 = Vector3d(t[2][0], t[2][1], t[2][2])
tri = Matrix3x3(row0, row1, row2)
for tri in tris.triangles:
# Rotate on the z-axis
row0 = rotation_matrix_z.multiply_3d(tri.row0)
row1 = rotation_matrix_z.multiply_3d(tri.row1)
row2 = rotation_matrix_z.multiply_3d(tri.row2)
rotated_z = Matrix3x3(row0, row1, row2)
# Rotate on the x-axis
row0 = rotation_matrix_x.multiply_3d(rotated_z.row0)
row1 = rotation_matrix_x.multiply_3d(rotated_z.row1)
row2 = rotation_matrix_x.multiply_3d(rotated_z.row2)
rotated_x = Matrix3x3(row0, row1, row2)
# The offset into the screen
translated = copy.copy(rotated_x)
translated.row0.z += 3.0
translated.row1.z += 3.0
translated.row2.z += 3.0
translated.row0.z += 8.0
translated.row1.z += 8.0
translated.row2.z += 8.0
# Scale into view
row0 = projection_matrix.multiply_3d(translated.row0)
row1 = projection_matrix.multiply_3d(translated.row1)
row2 = projection_matrix.multiply_3d(translated.row2)