[FEATURE]: turn off the Shading mechanism

[xubin1994]

can we use the BlenderProc to turn off the Shading mechanism? In this way, the real images are directly output as textures to the material. we can ensure that the imported image textures will not be disturbed by lighting so that the network can extract the real image’s features.

[cornerfarmer]

Hey @xubin1994,

I do not really understand what you mean, could you maybe please show an example? I don't think turning off the lighting is such a good idea, as this is one of the key features of blenderproc: Generating photo realistic images.

[xubin1994]

thank you for your reply. @cornerfarmer First, My purpose is to use blenderproc to reproduce the process of this paper: https://arxiv.org/abs/2101.10811。 The entire pipeline is as follows: The most critical step is: without Shader. Intuitively, I don't know the noise model of my own camera, so I want to stick the image from my camera as a texture on the object,without Shader, blenderproc can output the "origin img with specific real camera noise".

[cornerfarmer]

Hey @xubin1994,

BlenderProc does currently only support cycles and not the eevee engine. Also turning of all shading effect has not been done yet.

One easy way to achieve your goal, while still using the cycles engine, is to use an emission shader in your materials:

In this way all shading effects are disabled for the respective objects.

[xubin1994]

Hi, @cornerfarmer I don't know much about the inner workings of blender, can you tell me which api can I get the same effect to use an emission shader in my materials? I found possible api on blenderproc doc, maybe i can set it as follow? material.make_emissive(emission_strength= 1000, emission_color=[128,128,128], replace=True)

[cornerfarmer]

The make_emissive method does add the emission shader node to the material graph, however it will not create the other three nodes on the left. So you probably will need to write that code yourself. You can take a look at the content of the make_emissive method for how to create nodes and link them.

[xubin1994]

The make_emissive method does add the emission shader node to the material graph, however it will not create the other three nodes on the left. So you probably will need to write that code yourself. You can take a look at the content of the make_emissive method for how to create nodes and link them.

Thanks!

[themasterlink]

I assume this is resolved now.