Though I know it does in Maya, I’ve tried to “bump map” an Iris of an eye and the actual eyeball is “ray transparent”. For some reason in Blender the “bump map” won’t show unless the “ray transparent” is off. Is there a setting I may Have forgotten?
Below is an example of the problem I had with my First ever model and that problem still occurs…
Seems to work for me … if you upload an example, I’ll see if I can figure out why yours isn’t working. As a shot in the dark, try raising the Depth of the Ray Transp.
depth is very important when using raytransp, especially when you have things within other things. when i made a fish in a fishbowl recently, i had to crank it all the way up to 6. but it could be that you have it set for blurry refraction, so check that as well.
After taking sometime out I was trying to fix the problem but No luck ! So here’s what’s going on.
The Bump Map on the Iris (colored part of the eye) revealed in the second image, isn’t showing up behind the ray-transparent in the first image. To help out I showed a pic of my settings. Can anyone give a hand? I tried changing the depth but it didn’t seem to work.
i mean do you need to do such lcose up that you need to see this kind of detials?
usually you dont’ set that much detials for an eye no one is going to put that only the color i guess and that’s it
it’s enough detial to see form relatively far away!
Yea I’ll be doing a lot of facial close ups so a bump map is a high requirement. I seen how it looks in Maya and it’s so real it’s ridiculousness, so I’m trying to go for that same feel in blender, if possible. I heard the eyes make up most of the character, so that’s why I’m focusing so hard on the eyes, also it may help out others as well.
then don’t forget that a bump map does not produce any shadows inside
so if you really want some realist shots may be you should model this as a real mesh
or as a displacement map and put it inside the eye that would allow shadows inside the mesh iteself!
but that depends how realist you want it to be i guess!
Are you sure that your heavy IOR value on your lens isn’t just causing such a huge distortion that it looks flat? And does the same problem happen if instead of mapping to Alpha with the texture map, you set the alpha to 0 in the material panel?
I would but wouldn’t that effect the results, because all that’s left are the textures for the eye and the eye itself, also lights if you include that.
If the problem is with the bump map of the iris of the eye, isn’t that, along with the lens/sphere of the eye all you need to reproduce the problem, aside from lights? Either way, if you send me a blend file to [email protected] I’ll see if I can help.
That is really weird. I’m sure it’s a bug. Although, as a tip, try converting the greyscale map to a rgb normal map in blender by baking the bump map as a tangent map, here.