Uvw channels

[johnnelsonvfx_1 (JohnNelson)]

In the static mesh editor it says that i have 3 uvw map channels. When in reality i only have two. I double checked my 3ds max file and there has not been a third channel created. The way i was able to verify this was by viewing my map channel three in 3ds max and the third channel in unreal and they did not match.

Also how do you see what channel the lightmap is using?

[anonymous_user_e391b7bc]

• You may have accidentally set one of the channels to 2 or 3, which will generate a map to that channel even if it’s empty or removed.
• Channels in 3ds max start with 1, while channels in UE4 start with 0. This may cause some confusion but channel 1 is always channel 0, channel 2 equals channel 1, 3 equals 2 etc.
• If you enable automatic lightmap generation, you will always have an extra channel to which the new lightmap is saved.
• There’s three settings on your details panel which dictate your lightmap. The source lightmap index is the channel from which uv info is extracted in order to generate and optimize a new lightmap, which is saved to the destination lightmap index. You can then select which lightmap to use thru the lightmap coordinate index under static mesh settings. This allows you to switch channels if needed. (See image)

• You can also visualize your channels by clicking UV in the top right.

[johnnelsonvfx_1 (JohnNelson)]

thank you very much i will look in to this !

[anonymous_user_e391b7bc]

Hope it helps!