CoronaBitmaps in Bump Slot

[hika]

Hello, noticed that bump effect does not work when using real world scale within coronabitmap, however using real world scale within 3dsmax bitmap works just fine

Thanks!

[romullus]

Works fine here. What Corona version you're using?

[Ondra]

is it possible that the problem is caused just by extreme bitmap scale?

[maru]

Second similar report. Can you provide us with some proof? Scene? Screenshot?
Maybe it's 1.3 bump amount change? Or some file format not supported?

[hika]

hi guys, here are a few screen shots. 

Im using version 1.3 at work/home and experiencing similar results. my system units are set to 1 unit = 1 inch

Ive tested this using different bitmap scale sizes ranging from 6"x6" to 12'x12' real world scale and still no bump. 

Thank for the replies

[hika]

here's what the bump looks like without real world scale applied.  "Use Real World Scale" on coronabitmap is disabled and tiling is set to 1.0,1.0

Thanks

[romullus]

And what is the size of your box model? Does it has transforms reset?

[hika]

the box is 3' x 3' x 3'

[hika]

and yes the transforms are reset.  thx

[maru]

Can you send the scene? Even with a box and some random bitmap.

[hika]

Here you go.  Thank You

[maru]

This is hardcore. How were the boxes made? Which version of Max did you use? Here are my notes:
-indeed something is wrong with CBitmap's bump
-it works fine if you instance the map from bump to diffuse
-it becomes visible if you change filtering blur to 0,1 but it is still blurry
-if you set blur to 0 strange things happen
-it works fine if you use standard Bitmap node
-checked with png and jpg - same thing


-now something strange: if I create a new box, sphere, whatever, I am getting the correct result

update: forgot to attach the scene

[PROH]

+ another strange behavior: Bump strength is only half when using Corona Bitmap compared to Max Bitmap.

Image 1: The bump strength is set to 2 in both Max Bitmap and Corona Bitmap.
Image 2: The bump strength is set to 2 in Max Bitmap and 4 in Corona Bitmap.

MaxDesign 2014, Corona 1.3

[hika]

The box was made using standard primitive and we are using max 2016/corona 1.3

[maru]

Did you actually create the scene or some of the objects or materials in Corona 1.2 or other older version?