Height map in normal map alpha channel
by Harvey Greensall · in Torque 3D Professional · 08/22/2010 (6:27 pm) · 1 replies
Hi All.
I think I've pretty much read every single thread on this subject on the forums, and for the life of me I STILL can't get this to work as expected. I've ceating a material for a vehicles tyre, simple stuff, a diffuse, a normal map that is from a high-res model I've created, all looks as it should.
The problem is I'm trying to add a parallax map so that I can use the parallax slider in the material editor. I've created a black and white height map whereby the tyre is black, and the tread is white, but rather than the alpha channel adding height info. it's actually working as an alpha channel in the normal map, ie. everywhere that is black is still normal mapped, anything that is white in the normal map alpha channel is transparent rather than afffecting anything to do with the height...
What am I missing? I've ben chasing this for a few hours, and have read that others are cool using it so it must be me somehow...
Am saving as 32 bit tga with alpha channel BTW.
Cheers
Harv
I think I've pretty much read every single thread on this subject on the forums, and for the life of me I STILL can't get this to work as expected. I've ceating a material for a vehicles tyre, simple stuff, a diffuse, a normal map that is from a high-res model I've created, all looks as it should.
The problem is I'm trying to add a parallax map so that I can use the parallax slider in the material editor. I've created a black and white height map whereby the tyre is black, and the tread is white, but rather than the alpha channel adding height info. it's actually working as an alpha channel in the normal map, ie. everywhere that is black is still normal mapped, anything that is white in the normal map alpha channel is transparent rather than afffecting anything to do with the height...
What am I missing? I've ben chasing this for a few hours, and have read that others are cool using it so it must be me somehow...
Am saving as 32 bit tga with alpha channel BTW.
Cheers
Harv
Harvey Greensall
I blurred the heigh map and saved as a DDs instead of TGA and it works fine.....Whay do you sometimes have to post here to then find out exactly how do do things? 8)