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tu_02_texture_without_normal.py
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# import os,sys
# sys.path.append(os.path.abspath(os.path.dirname(__file__)))
from OpenGL.GL import * # pylint: disable=W0614
import glm
from utils.textureLoader import textureLoader
from utils.glutWindow import GlutWindow
from utils.shaderLoader import Shader
g_vertex_buffer_data = [
-1.0,-1.0,-1.0,
-1.0,-1.0, 1.0,
-1.0, 1.0, 1.0,
1.0, 1.0,-1.0,
-1.0,-1.0,-1.0,
-1.0, 1.0,-1.0,
1.0,-1.0, 1.0,
-1.0,-1.0,-1.0,
1.0,-1.0,-1.0,
1.0, 1.0,-1.0,
1.0,-1.0,-1.0,
-1.0,-1.0,-1.0,
-1.0,-1.0,-1.0,
-1.0, 1.0, 1.0,
-1.0, 1.0,-1.0,
1.0,-1.0, 1.0,
-1.0,-1.0, 1.0,
-1.0,-1.0,-1.0,
-1.0, 1.0, 1.0,
-1.0,-1.0, 1.0,
1.0,-1.0, 1.0,
1.0, 1.0, 1.0,
1.0,-1.0,-1.0,
1.0, 1.0,-1.0,
1.0,-1.0,-1.0,
1.0, 1.0, 1.0,
1.0,-1.0, 1.0,
1.0, 1.0, 1.0,
1.0, 1.0,-1.0,
-1.0, 1.0,-1.0,
1.0, 1.0, 1.0,
-1.0, 1.0,-1.0,
-1.0, 1.0, 1.0,
1.0, 1.0, 1.0,
-1.0, 1.0, 1.0,
1.0,-1.0, 1.0]
g_uv_buffer_data = [
0.000059, 1.0-0.000004,
0.000103, 1.0-0.336048,
0.335973, 1.0-0.335903,
1.000023, 1.0-0.000013,
0.667979, 1.0-0.335851,
0.999958, 1.0-0.336064,
0.667979, 1.0-0.335851,
0.336024, 1.0-0.671877,
0.667969, 1.0-0.671889,
1.000023, 1.0-0.000013,
0.668104, 1.0-0.000013,
0.667979, 1.0-0.335851,
0.000059, 1.0-0.000004,
0.335973, 1.0-0.335903,
0.336098, 1.0-0.000071,
0.667979, 1.0-0.335851,
0.335973, 1.0-0.335903,
0.336024, 1.0-0.671877,
1.000004, 1.0-0.671847,
0.999958, 1.0-0.336064,
0.667979, 1.0-0.335851,
0.668104, 1.0-0.000013,
0.335973, 1.0-0.335903,
0.667979, 1.0-0.335851,
0.335973, 1.0-0.335903,
0.668104, 1.0-0.000013,
0.336098, 1.0-0.000071,
0.000103, 1.0-0.336048,
0.000004, 1.0-0.671870,
0.336024, 1.0-0.671877,
0.000103, 1.0-0.336048,
0.336024, 1.0-0.671877,
0.335973, 1.0-0.335903,
0.667969, 1.0-0.671889,
1.000004, 1.0-0.671847,
0.667979, 1.0-0.335851
]
class Tu01Win(GlutWindow):
class GLContext(object):
pass
def init_opengl(self):
glClearColor(0.0,0,0.4,0)
glDepthFunc(GL_LESS)
glEnable(GL_DEPTH_TEST)
glEnable(GL_CULL_FACE)
def init_context(self):
self.context = self.GLContext()
# vertex = glGenVertexArrays(1) # pylint: disable=W0612
# glBindVertexArray(vertex)
self.shader = shader = Shader()
shader.initShaderFromGLSL(["glsl/tu02/vertex.glsl"],["glsl/tu02/fragment.glsl"])
self.context.MVP_ID = glGetUniformLocation(shader.program,"MVP")
self.context.TextureID = glGetUniformLocation(shader.program, "myTextureSampler")
texture = textureLoader("resources/tu02/uvtemplate.tga")
#texture = textureLoader("resources/tu02/uvtemplate.dds")
self.context.textureGLID = texture.textureGLID
self.context.vertexbuffer = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER,self.context.vertexbuffer)
glBufferData(GL_ARRAY_BUFFER,len(g_vertex_buffer_data)*4,(GLfloat * len(g_vertex_buffer_data))(*g_vertex_buffer_data),GL_STATIC_DRAW)
if(texture.inversedVCoords):
for index in range(0,len(g_uv_buffer_data)):
if(index % 2):
g_uv_buffer_data[index] = 1.0 - g_uv_buffer_data[index]
self.context.uvbuffer = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER,self.context.uvbuffer)
glBufferData(GL_ARRAY_BUFFER,len(g_uv_buffer_data)*4,(GLfloat * len(g_uv_buffer_data))(*g_uv_buffer_data),GL_STATIC_DRAW)
def calc_MVP(self,width=1920,height=1080):
self.context.Projection = glm.perspective(glm.radians(45.0),float(width)/float(height),0.1,1000.0)
self.context.View = glm.lookAt(glm.vec3(4,3,-3), # Camera is at (4,3,-3), in World Space
glm.vec3(0,0,0), #and looks at the (0.0.0))
glm.vec3(0,1,0) ) #Head is up (set to 0,-1,0 to look upside-down)
#fixed Cube Size
self.context.Model= glm.mat4(1.0)
#print self.context.Model
self.context.MVP = self.context.Projection * self.context.View * self.context.Model
def resize(self,Width,Height):
glViewport(0, 0, Width, Height)
self.calc_MVP(Width,Height)
def ogl_draw(self):
print "draw++"
#print self.context.MVP
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
self.shader.begin()
glUniformMatrix4fv(self.context.MVP_ID,1,GL_FALSE,glm.value_ptr(self.context.MVP))
glActiveTexture(GL_TEXTURE0)
glBindTexture(GL_TEXTURE_2D, self.context.textureGLID)
glUniform1i(self.context.TextureID, 0)
glEnableVertexAttribArray(0)
glBindBuffer(GL_ARRAY_BUFFER, self.context.vertexbuffer)
glVertexAttribPointer(0,3,GL_FLOAT,GL_FALSE,0,None)
glEnableVertexAttribArray(1)
glBindBuffer(GL_ARRAY_BUFFER, self.context.uvbuffer)
glVertexAttribPointer(1,2,GL_FLOAT,GL_FALSE,0,None)
glDrawArrays(GL_TRIANGLES, 0, 12*3) # 12*3 indices starting at 0 -> 12 triangles
glDisableVertexAttribArray(0)
glDisableVertexAttribArray(1)
self.shader.end()
if __name__ == "__main__":
win = Tu01Win()
win.init_opengl()
win.init_context()
win.run()