1、The reason for the suboptimal OBJ display: I want to understand how to adjust parameters in Isaac Sim to make the imported OBJ model’s display closer to the effect seen in other software.
2、How to modify the OBJ display mode: I would like to know how to switch between different display modes in Isaac Sim, such as wireframe mode, shaded mode, etc.
3、How to set the display of 3D model details: I want to understand how to configure the display settings in Isaac Sim to ensure the model shows the finest details.
Hi there and thanks for the post. This is quite a detailed post so I will do my best.
You have a scanned mesh environment. I can see it’s fairly low poly and you have triangular artifacts showing. The first issue is materials. Your material needs to be totally diffuse with no specular at all. That will avoid the fake shiny look you are getting. Any material that is shiny / glossy, which is not supposed to be will look bad and show the mesh triangulation. The more matte and diffuse the material, the less triangular / tessellation it will display.
Second, your environment lighting, also needs to be very flat and diffuse. To achieve the correct look with a scanned mesh scene, like yours, you either need to have no lights in the scene at all, and just have the material “self-illuminate” or you just add a single white diffuse dome light to light the scene evenly.
One more thing to try, is in the rendering settings under realtime, you can increase the AO light from 0.0 to 1.0 and this again will fill the scene with perfectly even light.
The only issue with making these changes to the scene lighting, is that it becomes more challenging to add other non scanned objects because they would require proper scene lighting. It is difficult to mix scanned material and non scanned material together without some kind of compromise.
