Cleaned up the engine and added support for CSV file parsing.

This commit is contained in:
2020-12-04 00:15:18 -06:00
parent e39eb39d2c
commit 51c5ac335a
2 changed files with 97 additions and 13 deletions
+26 -4
View File
@@ -36,14 +36,36 @@ class Mesh:
if line[0] == 'f':
tmp = line.split(' ')
x = tmp[1].split('//')[0]
y = tmp[2].split('//')[0]
z = tmp[3].split('//')[0]
# Subtract one because the obj file isn't zero indexed.
row1 = self.vertices[int(tmp[1]) - 1]
row2 = self.vertices[int(tmp[2]) - 1]
row3 = self.vertices[int(tmp[3]) - 1]
row1 = self.vertices[int(x) - 1]
row2 = self.vertices[int(y) - 1]
row3 = self.vertices[int(z) - 1]
self.triangles.append(Triangle(Matrix3x3(row1, row2, row3)))
def load_csv(self, path):
values = []
x = 0
y = -2
with open(path, 'r') as reader:
values = reader.readlines()
for i in range(0, 60, 3):
tmp = values[i].split(',')
row1 = Vector3d(x, y, float(tmp[6]))
tmp = values[i + 1].split(',')
row2 = Vector3d(x + 0.5, y, float(tmp[6]))
tmp = values[i + 2].split(',')
row3 = Vector3d(x, y + 0.5, float(tmp[6]))
self.triangles.append(Triangle(Matrix3x3(row1, row2, row3)))
self.triangles.append(Triangle(Matrix3x3(row2, row3, Vector3d(x + 0.5, y + 0.5, float(tmp[6])))))#, row2, row3)))
x += 0.5
#y -= 0.5
def __getitem__(self, key):
return self.triangles[key]
+71 -9
View File
@@ -1,6 +1,7 @@
import window
import math
import copy
from tkinter.font import Font
from matrix import Matrix4x4, Matrix3x3
from vectors import Vector4d, Vector3d, Vector2d
from engine import Mesh
@@ -10,7 +11,7 @@ ui = window.Window(600, 600)
near_plane = 0.1
far_plane = 1000.0
fov = 90.0
#'''
'''
tris =[
Matrix3x3(Vector3d(0.0,0.0,0.0),Vector3d(0.0,1.0,0.0),Vector3d(1.0,1.0,0.0)),
Matrix3x3(Vector3d(0.0,0.0,0.0),Vector3d(1.0,1.0,0.0),Vector3d(1.0,0.0,0.0)),
@@ -25,13 +26,17 @@ Matrix3x3(Vector3d(0.0,1.0,0.0),Vector3d(1.0,1.0,1.0),Vector3d(1.0,1.0,0.0)),
Matrix3x3(Vector3d(1.0,0.0,1.0),Vector3d(0.0,0.0,1.0),Vector3d(0.0,0.0,0.0)),
Matrix3x3(Vector3d(1.0,0.0,1.0),Vector3d(0.0,0.0,0.0),Vector3d(1.0,0.0,0.0))
]
#'''
#tris = Mesh()
tris = [
Matrix3x3(Vector3d(0,0,0),Vector3d(0,2000,0.0),Vector3d(1,1,0))
]'''
tris = Mesh()
def main():
#tris.load_obj_file('shuttle.obj')
tris.load_obj_file('reduced.obj')
#tris.load_csv('values.csv')
ui.scale = 3
ui.thetax = 1
ui.thetaz = 1
ui.canvas.configure(scrollregion = ui.canvas.bbox("all"))
ui.window.bind('<Left>', left)
ui.window.bind('<Right>', right)
ui.window.bind('<Up>', up)
@@ -40,7 +45,10 @@ def main():
ui.window.bind('<Button-5>', wheel)
#ui.window.bind('<ButtonPress-1>', mouse_start)
ui.canvas.bind('<B1-Motion>', mouse_end)
ui.canvas.bind('<Motion>', mouse_motion)
ui.canvas.old_coords = None
ui.canvas.just_the_tip = ui.canvas.create_rectangle(0, 0, 0, 0, fill='blue')
ui.canvas.just_the_label = ui.canvas.create_text(0, 0)
ui.window.after(0, draw_scene)
ui.show()
@@ -62,12 +70,15 @@ def left(event):
draw_scene()
def right(event):
ui.thetaz -= .1
draw_scene()
#ui.thetaz -= .1
#draw_scene()
ui.canvas.yview_moveto(.1)
ui.canvas.update()
def up(event):
ui.thetax += .1
draw_scene()
ui.canvas.create_text(100, 100, text="Up pressed")
def down(event):
ui.thetax -= .1
@@ -90,6 +101,35 @@ def mouse_end(event):
draw_scene()
def mouse_motion(event):
x, y = event.x, event.y
draw_x = x
draw_y = y
id = ui.canvas.find_closest(x, y)
n = ui.canvas.coords(id)
if len(n) != 6: return
text = "1250 = 100((1 -1.08 ^ -240) / 0.08) | 95%"#"Nearest Triangle: (%d, %d) (%d, %d) (%d, %d)" %(n[0], n[1], n[2], n[3], n[4], n[5])#"Now the tool tip auto sizes to fit text"
width = Font(size=12, family="Hack").measure(text)
if width + x > ui.width:
draw_x = x - width - 30
if draw_x < 0:
draw_x = 0
y += 20
ui.canvas.delete(ui.canvas.just_the_tip)
ui.canvas.delete(ui.canvas.just_the_label)
ui.canvas.just_the_tip = ui.canvas.create_rectangle(draw_x + 14, y, draw_x + width + 16, y + 20, fill='grey')
ui.canvas.just_the_label = ui.canvas.create_text(draw_x + width / 2 + 15, y + 9, font="Hack 12", text=text)
ui.canvas.update()
#width = tk.font.Font(size=12, family="Times New Roman").measure("Some Tool Tip Nonsense")
#heigth = ui.canvas.find_withtag(ui.canvas.just_the_label) #.winfo_height()
#print(width)
#ui.canvas.delete(ui.canvas.just_the_label)
#ui.canvas.just_the_label = ui.canvas.create_text(x + width, y + y/2, text="Some tool tip nonsense")
#ui.canvas.update()
def draw_scene():
ui.canvas.delete("all")
aspect_ratio = ui.height / ui.width
@@ -97,14 +137,19 @@ def draw_scene():
projection_matrix = Matrix4x4.get_projection_matrix(fov, aspect_ratio, near_plane, far_plane)
rotation_matrix_z = Matrix4x4.get_y_rotation_matrix(ui.thetaz * .5)
#print("Z:\n%s" %(rotation_matrix_z))
rotation_matrix_x = Matrix4x4.get_x_rotation_matrix(ui.thetax)
#print("X:\n%s" %(rotation_matrix_x))
translation = Matrix4x4.get_translation_matrix(Vector3d(0, 0, ui.scale))
#print("T:\n%s" %(translation))
world_matrix = Matrix4x4.get_identity_matrix()
#print("W:\n%s" %(world_matrix))
world_matrix = rotation_matrix_z.multiply_matrix(rotation_matrix_x)
#print("W * Z:\n%s" %(world_matrix))
world_matrix = world_matrix.multiply_matrix(translation)
#print("W * T:\n%s" %(world_matrix))
triangles = []
@@ -132,6 +177,7 @@ def draw_scene():
dot_product = normal.dot_product(light)
r = abs(int(255 * dot_product))
color = compute(r)
# Scale into view
row1 = projection_matrix.multiply_3d(transformed.row1)
@@ -158,7 +204,7 @@ def draw_scene():
projected.row3.y *= .5 * ui.height
t = Triangle(projected)
t.color = r
t.color = color
t.average = (t.coords.row1.z + t.coords.row2.z + t.coords.row3.z) / 3
triangles.append(t)
@@ -167,8 +213,14 @@ def draw_scene():
for projected in triangles:
r = projected.color
'''
print("1: x:%f.2 y:%f.2" %(projected.coords.row1.x, projected.coords.row1.y))
print("2: x:%f.2 y:%f.2" %(projected.coords.row2.x, projected.coords.row2.y))
print("3: x:%f.2 y:%f.2" %(projected.coords.row3.x, projected.coords.row3.y))
print()
'''
coords = [projected.coords.row1.x, projected.coords.row1.y, projected.coords.row2.x, projected.coords.row2.y, projected.coords.row3.x, projected.coords.row3.y]
ui.canvas.create_polygon(coords, fill=from_rgb(r, r, r), outline="black")
ui.canvas.create_polygon(coords, fill=from_rgb(r[0], r[1], r[2]), outline=from_rgb(0, 255, 0))
ui.canvas.update()
@@ -177,4 +229,14 @@ def draw_scene():
def from_rgb(r, b, g):
return "#%02x%02x%02x" %(r, g, b)
def compute(r):
r = r * 0.38
b = r
g = r * 1.6
if g > 255:
g = 255
return (int(r), int(g), int(b))
main()