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09_Textured_Nampan.py
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09_Textured_Nampan.py
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import glfw
import pyrr
import numpy as np
from PIL import Image
from OpenGL.GL import *
from OpenGL.GL.shaders import compileProgram, compileShader
def window_resize(window, width, height):
glViewport(0, 0, width, height)
# ==========================================
# Vertex and fragment shader
# ==========================================
vertex_src = """
# version 330
layout(location = 0) in vec3 position_in;
layout(location = 1) in vec3 color_in;
layout(location = 2) in vec2 texture_in;
uniform mat4 rotation;
out vec3 color_out;
out vec2 texture_out;
void main()
{
gl_Position = rotation * vec4(position_in, 1.0);
color_out = color_in;
texture_out = texture_in;
}
"""
fragment_src = """
# version 330
in vec3 color_out;
in vec2 texture_out;
uniform sampler2D texture_sampler;
out vec4 color;
void main()
{
color = texture(texture_sampler, texture_out);
}
"""
# ==========================================
# Initialize window & context
# ==========================================
if not glfw.init():
raise Exception('glfw can\'t be initialized')
# creating the window
window = glfw.create_window(640, 480, "Kelompok 5 - Sushi", None, None)
# check if window was created
if not window:
glfw.terminate()
raise Exception('glfw window can\'t be created')
# set window's position
glfw.set_window_pos(window, 100, 100)
# Get callback and windows resize
glfw.set_window_size_callback(window, window_resize)
# make the context current
glfw.make_context_current(window)
# ==========================================
# Define vertices and color
# ==========================================
vertices = [-0.5, -0.25, 0.025, 1.0, 0.0, 0.0, 0.0, 0.0,
0.5, -0.25, 0.025, 0.0, 1.0, 0.0, 1.0, 0.0,
0.5, 0.25, 0.025, 0.0, 0.0, 1.0, 1.0, 1.0,
-0.5, 0.25, 0.025, 0.0, 1.0, 1.0, 0.0, 1.0,
-0.5, -0.25, -0.025, 1.0, 0.0, 0.0, 0.0, 0.0,
0.5, -0.25, -0.025, 0.0, 1.0, 0.0, 1.0, 0.0,
0.5, 0.25, -0.025, 0.0, 0.0, 1.0, 1.0, 1.0,
-0.5, 0.25, -0.025, 1.0, 0.0, 1.0, 0.0, 1.0,
0.5, -0.25, -0.025, 1.0, 0.0, 0.0, 0.0, 0.0,
0.5, 0.25, -0.025, 0.0, 1.0, 0.0, 1.0, 0.0,
0.5, 0.25, 0.025, 0.0, 0.0, 1.0, 1.0, 1.0,
0.5, -0.25, 0.025, 1.0, 1.0, 0.0, 0.0, 1.0,
-0.5, -0.25, -0.025, 1.0, 0.0, 0.0, 1.0, 0.0,
-0.5, 0.25, -0.025, 0.0, 1.0, 0.0, 0.0, 0.0,
-0.5, 0.25, 0.025, 0.0, 0.0, 1.0, 0.0, 1.0,
-0.5, -0.25, 0.025, 1.0, 1.0, 1.0, 1.0, 1.0,
-0.5, -0.25, -0.025, 1.0, 0.0, 0.0, 0.0, 0.0,
0.5, -0.25, -0.025, 0.0, 1.0, 0.0, 1.0, 0.0,
0.5, -0.25, 0.025, 0.0, 0.0, 1.0, 1.0, 1.0,
-0.5, -0.25, 0.025, 0.0, 0.0, 0.0, 0.0, 1.0,
-0.5, 0.25, -0.025, 1.0, 0.0, 0.0, 1.0, 0.0,
0.5, 0.25, -0.025, 0.0, 1.0, 0.0, 0.0, 0.0,
0.5, 0.25, 0.025, 0.0, 0.0, 1.0, 0.0, 1.0,
-0.5, 0.25, 0.025, 0.0, 0.0, 1.0, 1.0, 1.0]
vertices = np.array(vertices, dtype=np.float32)
# Define index array vertex
indices = [0, 1, 2, 2, 3, 0,
4, 5, 6, 6, 7, 4,
8, 9, 10, 10, 11, 8,
12, 13, 14, 14, 15, 12,
16, 17, 18, 18, 19, 16,
20, 21, 22, 22, 23, 20]
indices = np.array(indices, dtype=np.uint32)
# Make Shader Program
shader = compileProgram(compileShader(vertex_src, GL_VERTEX_SHADER),
compileShader(fragment_src, GL_FRAGMENT_SHADER))
# Make VBO (Vertex Buffer Object)
VBO = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, VBO)
glBufferData(GL_ARRAY_BUFFER, vertices.nbytes, vertices, GL_STATIC_DRAW)
# Make EBO (Element Buffer Object)
EBO = glGenBuffers(1)
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO)
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.nbytes, indices, GL_STATIC_DRAW)
# Make Texture Object
texture = glGenTextures(1)
glBindTexture(GL_TEXTURE_2D, texture)
# Define Vertex Shader
glEnableVertexAttribArray(0)
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE,
vertices.itemsize * 8, ctypes.c_void_p(0))
# Define Color Shader
glEnableVertexAttribArray(1)
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE,
vertices.itemsize * 8, ctypes.c_void_p(12))
# Define Texture Shader
glEnableVertexAttribArray(2)
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE,
vertices.itemsize * 8, ctypes.c_void_p(24))
# Set the texture wrapping parameters
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
# Set texture filtering parameters
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
# load image
image = Image.open("textures/wood.jpeg")
image = image.transpose(Image.FLIP_TOP_BOTTOM)
# 2 Method of getting raw image
img_data = image.convert("RGBA").tobytes()
# img_data = np.array(image.getdata(), np.uint8)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width,
image.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img_data)
# Using program shader
glUseProgram(shader)
glClearColor(0, 0, 0.1, 0)
glEnable(GL_DEPTH_TEST)
# Call rotation in shader
rotation_loc = glGetUniformLocation(shader, "rotation")
# ==========================================
# Loop until the user closes the window
# ==========================================
while not glfw.window_should_close(window):
# Clear buffer and Poll process events
glfw.poll_events()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# Draw the object
# Rotate in 3-axis
rot_x = pyrr.Matrix44.from_x_rotation(0.5 * glfw.get_time())
rot_y = pyrr.Matrix44.from_y_rotation(0.7 * glfw.get_time())
rot_z = pyrr.Matrix44.from_z_rotation(0.9 * glfw.get_time())
# 3 Method of rotation
# glUniformMatrix4fv(rotation_loc, 1, GL_FALSE, rot_x * rot_y * rot_z)
# glUniformMatrix4fv(rotation_loc, 1, GL_FALSE, rot_x @ rot_y @ rot_z)
glUniformMatrix4fv(rotation_loc, 1, GL_FALSE,
pyrr.matrix44.multiply((rot_x * rot_y), rot_z))
glDrawElements(GL_TRIANGLES, len(indices), GL_UNSIGNED_INT, None)
glfw.swap_buffers(window)
glfw.terminate()