If Corona renders black screen only, this might suggest that:
- There are no light sources in your scene.
Solution: add light sources (either Corona Lights, or light objects supported by Corona, or daylight)
- Your license is not activated.
Solution: Activate Corona
- Wrong materials are applied - this could happen for example if pure black materials were applied to geometry after importing it to 3ds Max.
Solution: make sure that proper non-black materials are used and that you do not have any material overrides enabled.
- Some object, which is not visible in the viewport, is blocking your camera.
Solution: move the camera out of the offending object, or remove the object
Note: With the introduction of new volume resolving in Corona 10, scenes where the camera is inside a non-enclosed volumetric medium (like a flat plane used for walls or ceilings) may render black. This occurs because the renderer interprets the camera as being inside an infinite volume.
Solution: Disable Volumetric effects for all Corona and 3ds Max native Physical Materials in the scene. But, before you do this, it's a good idea to back up your scene. This is important because the script will turn off volumetrics for all materials present in your scene. You can find the script here: Download
- Color tint ( Render Setup > Camera > Postprocessing > Edit Tone Mapping > Color tint ) in your scene is set to black.
Solution: change the tint to a brighter color
- You may have the "Render selected" feature enabled (Render Setup > Scene > General Settings > Render selected) and nothing is selected in the scene.
Solution: Select something in the scene to render, or disable the "Render selected" option.
- A render region may be placed outside of the currently rendered frame. This can for example happen when using the 2D Pan Zoom Mode.
Solution: Remove all render regions by clicking and holding over the Region button in the Corona VFB, and then selecting "Remove all".