Create a sphere, segment 50,radius 10cm rename as Event Horzion
→
Duplicate the sphere, rename as Gravitational Lensing, radius 100cm, segment 200
Create Arnold → Surface → Standard surface → Open Network Editor → click on the node →
Base: Weight: 0
Specular: Weight: 0; Roughnes: 0
Transmission: 1
Type Facing Ratio left box in Editor, drag it in the node graph, drag its output to Specular IOR:
Plug facing Ratio output to Arnold Shader as wel
click facing ratio node, Bias: 0.1, Gain: 0.01
Drag standard surface output back to Arnold Shader
Type Range and drag as follow and relevant settings:
Drag the material to the Gravitational Lensing → R click on the layer → C4DtoA tag → Arnold Parameters
→ untick Diffuse transmission and specular transmission
......