1. Here's why
Freezes and crashes during rendering may occur if your Project is 'too complex' and your hardware isn't powerful enough and/or lacks available System Memory and Virtual Memory to handle it properly.
'Too complex' refers to the following variables:
| A: The number of different models you have added to the Project. |
| B: The 3D Point count in the top right corner of Build Mode. |
| C: The number and resolution of your textures/materials. |
| D: The Movie/Photo Effects you're using, in particular the Skylight and Hyperlight effects. |
| E: How many Reflection Planes you've added to the Reflection Effect. |
| F: How many Spotlights are set to Shadows: Dynamic in the Scene. |
| G: How many Spotlights you have selected in the Global Illumination Effect. |
| H: How many large surfaces you have assigned 3D Grass Materials to. |
1.1: To improve performance and reduce the time it takes to render a Photo or a Clip, you should try to reduce the number of all of the above. See this article for suggestions:
- Knowledge Base: How can you improve performance within Lumion?
1.2: In addition, increasing the amount of Virtual Memory in Windows will also help prevent crashes:
- Knowledge Base: How do you change the amount of virtual memory in Windows?
1.3: If the problem persists, please verify that your PC has an adequate power supply unit:
- Knowledge Base: Which power supply do you need?
1.4: Alternatively, you could consider upgrading your hardware:
- Knowledge Base: What kind of computer does Lumion need?
- Knowledge Base: Which graphics card do you need?
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