کافیه وارد تنظیمات نور omni شوید و بعد در قسمت area light parameters مقدار 0.025 رو برای radius وارد کنید این همون مقداریه که توی نور دیگه هم استفاده شده .
عکس کار رو با تنظیم جدید پیوست کردم واستون .
موفق باشید .
ممنون حمید آقای عزیز خیلی لطف کردید
فقط اگه امکانش هست یه لطف دیگم کنید بگید این radius چه کاری میکنه و چرا مقدار زیادش باعث چنین چیزی شده بود
باز هم ممنون
این متن انگلیسی و توضیحان هر گزینه اگه واضح نبود بگید که توضیح بدم ...
On
Turns the area light on and off. When On is on, the mental ray renderer uses the light to illuminate the scene. When On is off, the mental ray renderer doesn’t use the light. Default=on.
Show Icon in Renderer
When on, the mental ray renderer renders a dark shape where the area light is. When off, the area light is invisible. Default=off.
Type
Changes the shape of the area light. Can be either Rectangle, for a rectangular area, or Disc, for a circular area. Default=Rectangle.
Radius
Available only when Disc is the active type of area light. Sets the radius of the circular light area, in 3ds Max units. Default=20.0.
Height and Width
Available only when Rectangle is the active type of area light. Set the height and width of the rectangular light area, in 3ds Max units. Default=20.0 for both Height and Width.
While you use these spinners to adjust the size of the area light, a gizmo (yellow by default) appears in viewports to show the adjusted size. This gizmo disappears once you finish adjusting the value.
Samples group
U and V
Adjust the quality of shadows cast by the area light. These values specify how many samples to take within the light’s area. Higher values can improve rendering quality at a cost of rendering time. For a rectangular light, U specifies the number of sampled subdivisions in one local dimension, and V the number of subdivisions in the other local dimension. For a circular (disc) light, U specifies the number of subdivisions along the radius, and V specifies the number of angular subdivisions. Default=5 for both U and V.
