def initialize(self):
print("Initializing...")
# shaders
vsCode = """
in vec3 position;
uniform mat4 projectionMatrix;
uniform mat4 modelMatrix;
void main()
{
gl_Position = projectionMatrix * modelMatrix * vec4(position, 1.0);
}
"""
fsCode = """
out vec4 fragColor;
void main()
{
fragColor = vec4(1.0, 1.0, 0.0, 1.0);
}
"""
self.programRef = OpenGLUtils.initializeProgram(vsCode, fsCode)
# render settings
glClearColor(0.0, 0.0, 0.0, 1.0)
glEnable(GL_DEPTH_TEST)
# vao
vaoRef = glGenVertexArrays(1)
glBindVertexArray(vaoRef)
# vertex attribute
positionData = [[0.0, 0.2, 0.0], [0.1, -0.2, 0.0], [-0.1, -0.2, 0.0]]
self.vertexCount = len(positionData)
positionAttribute = Attribute("vec3", positionData)
positionAttribute.associateVariable(self.programRef, "position")
# uniforms
mMatrix = Matrix.makeTranslation(0, 0, -1)
self.modelMatrix = Uniform("mat4", mMatrix)
self.modelMatrix.locateVariable(self.programRef, "modelMatrix")
pMatrix = Matrix.makePersepctive()
self.projectionMatrix = Uniform("mat4", pMatrix)
self.projectionMatrix.locateVariable(self.programRef,
"projectionMatrix")
def update(self):
moveAmount = 0.005
turnAmount = 0.01
# global translations
if self.input.isKeyPressed("z"):
m = Matrix.makeTranslation(0, moveAmount, 0)
self.modelMatrix.data = m @ self.modelMatrix.data
if self.input.isKeyPressed("s"):
m = Matrix.makeTranslation(0, -moveAmount, 0)
self.modelMatrix.data = m @ self.modelMatrix.data
if self.input.isKeyPressed("q"):
m = Matrix.makeTranslation(-moveAmount, 0, 0)
self.modelMatrix.data = m @ self.modelMatrix.data
if self.input.isKeyPressed("d"):
m = Matrix.makeTranslation(moveAmount, 0, 0)
self.modelMatrix.data = m @ self.modelMatrix.data
if self.input.isKeyPressed("w"):
m = Matrix.makeTranslation(0, 0, moveAmount)
self.modelMatrix.data = m @ self.modelMatrix.data
if self.input.isKeyPressed("x"):
m = Matrix.makeTranslation(0, 0, -moveAmount)
self.modelMatrix.data = m @ self.modelMatrix.data
# global rotations
if self.input.isKeyPressed("a"):
m = Matrix.makeRotationZ(turnAmount)
self.modelMatrix.data = m @ self.modelMatrix.data
if self.input.isKeyPressed("e"):
m = Matrix.makeRotationZ(-turnAmount)
self.modelMatrix.data = m @ self.modelMatrix.data
# local translations
if self.input.isKeyPressed("i"):
m = Matrix.makeTranslation(0, moveAmount, 0)
self.modelMatrix.data = self.modelMatrix.data @ m
if self.input.isKeyPressed("k"):
m = Matrix.makeTranslation(0, -moveAmount, 0)
self.modelMatrix.data = self.modelMatrix.data @ m
if self.input.isKeyPressed("j"):
m = Matrix.makeTranslation(-moveAmount, 0, 0)
self.modelMatrix.data = self.modelMatrix.data @ m
if self.input.isKeyPressed("l"):
m = Matrix.makeTranslation(moveAmount, 0, 0)
self.modelMatrix.data = self.modelMatrix.data @ m
# local rotations
if self.input.isKeyPressed("u"):
m = Matrix.makeRotationZ(turnAmount)
self.modelMatrix.data = self.modelMatrix.data @ m
if self.input.isKeyPressed("o"):
m = Matrix.makeRotationZ(-turnAmount)
self.modelMatrix.data = self.modelMatrix.data @ m
# render
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glUseProgram(self.programRef)
self.projectionMatrix.uploadData()
self.modelMatrix.uploadData()
glDrawArrays(GL_TRIANGLES, 0, self.vertexCount)
print(self.modelMatrix.data)
def translate(self, x, y, z, localCoord=True):
m = Matrix.makeTranslation(x, y, z)
self.applyMatrix(m, localCoord)