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.To learn more and troubleshoot this issue, see: My rendering is very dark or black, I am having issues with reflection and refraction!
- 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".