Hi @yewi,
First off, unless you have a reason to use 1.3 and not 1.4 I would advise you to update your installation using the versioner component or sync the components on the canvas.
There are (at least) two things wrong with your setup.
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The image from Legacy is clearly with a direct sun model hence the sharp pink pattern on the grid. In your setup you used the wrong CIE Sky; “1” (sunny without sun) instead of “0”. If we correct this I get the following result. The direct sun pattern is there but the results are clearly not right, see point 2.
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Your model is very large, which means that you should likely increase the ambient resolution (-ar). You can see more in this post.