def __init__(self,
angleOfView=90,
aspectRatio=1080 / 720,
near=0.1,
far=1000):
super().__init__()
self.projectionMatrix = Matrix.makePersepctive(angleOfView,
aspectRatio, near, far)
self.viewMatrix = Matrix.makeIdentity()
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")