def test_create(self):
mesh = VAO("test", mode=moderngl.LINES)
mesh.buffer(numpy.array([0.0, 0.0, 0.0, 1.0, 1.0, 1.0], dtype='f4'), '3f', 'position')
mesh.buffer(numpy.array([0.0, 0.0, 1.0, 1.0, 0.0, 1.0], dtype='f4'), '3f', 'normal')
mesh.buffer(numpy.array([0.0, 0.0, 1.0, 1.0], dtype='f4'), '2f', 'uv')
# Ensure basic properties are correct
self.assertEqual(mesh.name, "test")
self.assertEqual(mesh.vertex_count, 2)
self.assertEqual(mesh.mode, moderngl.LINES)
# Ensure buffers are present
self.assertIsInstance(mesh.get_buffer_by_name('position'), BufferInfo)
self.assertIsInstance(mesh.get_buffer_by_name('normal'), BufferInfo)
self.assertIsInstance(mesh.get_buffer_by_name('uv'), BufferInfo)
self.assertEqual(mesh.get_buffer_by_name('something'), None)
# Create a progam using a subset of the buffers
prog = self.createProgram()
vao = mesh.instance(prog)
self.assertIsInstance(vao, moderngl.VertexArray)
# Render directly with VAO and VertexArray instance
mesh.render(prog)
vao.render()
def test_divisors(self):
"""Test defining buffers with different divisor types"""
mesh = VAO("test", mode=moderngl.LINES)
mesh.buffer(numpy.array([0.0, 0.0, 0.0, 1.0, 1.0, 1.0], dtype='f4'), '3f/v', 'position')
mesh.buffer(numpy.array([0.0, 0.0, 1.0, 1.0, 0.0, 1.0], dtype='f4'), '3f/r', 'normal')
mesh.buffer(numpy.array([0.0, 0.0, 1.0, 1.0], dtype='f4'), '2f/i', 'uv')
buffer1 = mesh.get_buffer_by_name('position')
buffer2 = mesh.get_buffer_by_name('normal')
buffer3 = mesh.get_buffer_by_name('uv')
attributes = ['position', 'normal', 'uv']
self.assertEqual(buffer1.content(attributes), (buffer1.buffer, '3f/v', 'position'))
self.assertEqual(buffer2.content(attributes), (buffer2.buffer, '3f/r', 'normal'))
self.assertEqual(buffer3.content(attributes), (buffer3.buffer, '2f/i', 'uv'))