The Sun Shade is used to clamp the brightness of bright pixels. Its main purpose is to allow you to reduce the brightness of the sun on HDR environment maps. Some renderers produce noise when using textures with very bright pixels and the Sun Shade is designed to help prevent this. You should use the width and height controls to stretch the sun shade across the whole screen.
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Sun Shadeは、明るいピクセルの輝度をクランプするために使用されます。その主な目的は、HDR環境マップの太陽の明るさを抑えることです。
Sun Shade Lightの主要な設定は以下の通りです。
Mapping: Planar
Width: 20
Height: 40
Blend Mode: Low Pass
Content: Flat