def do_render(self, filter, in_tex):
# Black borders.
glClearColor(0.0, 0.0, 0.0, 0.0)
glClear(GL_COLOR_BUFFER_BIT)
glBindVertexArray(self.vao_id)
glActiveTexture(GL_TEXTURE0)
glBindTexture(GL_TEXTURE_2D, in_tex.tex_id)
self.shader.use()
self.shader.set_uniform_1f('u_scale_x', self.scale_x)
self.shader.set_uniform_1f('u_scale_y', self.scale_y)
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, None)
def clear_texture(args):
glClearColor(0.0, 0.0, 0.0, 1.0)
glClear(GL_COLOR_BUFFER_BIT)