UMG retainer box washing colours out on 3D Widget
So we're trying to create a visual effect using the new retainer boxes, and it works great. However when you use retainer boxes with UMG elements for 3D world widgets, the colours get oddly washed out. They seem to work fine when added to viewport, but acting strangely in world.
We've broken it down step by step to make sure we weren't doing anything odd, and the ONLY difference is the use of the retainer box. Attached is an image explaining the situation, we've used as simple material as possible, with as simple a UMG as possible. The image shows a standard 3D widget on the left, and a 3D widget using retainer box on the right.
As stated before, retainer boxes on viewport widgets work fine. It may not be completely clear from the image, but all elements of the UMG get washed out, not just images, but text, borders etc.
asked Aug 29 '16 at 01:54 PM in Rendering
I had this same problem today, it seems that the RetainerBox materials sends input (the texture parameter) and expects output as linear RGB, so having a texture sampler with a sRGB texture will look bad. what did it for me was setting the texture as not sRGB in the texture import settings.
I'd consider this is a bug so you should submit a bug report.
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