Khaled AbdelHay

UPDATE: just got it to work, so basically (1) it does work , (2) i used --linearize=0 and it seems fine, (3) it does work

hi,

when using imaketx to create mipmapped images :

-would it work to convert normal maps to mipmap rat file? e.g would sampling down normal maps work or there will be artifacts?
-if does work, then (1) is there a better filter to use (e.g box, sinc,...)? (2) to preven the command from converting sRGB to linear, ishould use --linearize=0 (i.e. Disable conversion from sRGB to linear space)

(3)another question : would "Karma Hex-Tiled Texture" node work with mipmapped rat normal maps files? currently testing, I don't see the effect of normal maps...

tx

Hi!

1-The built-in Houdini materialX Catalog is saved as a .db file (materialCatalog.db), i.e. why not not just a directory structure? This way one does not need to a program/api to access it, they will be just just flat files that can be inspected and copied easily(see use case below)

2-How to duplicate a material defined in the Catlog, then edit it, and finally save it as a new material? Curently, I drag the material to the left panel (ie. Material Tree), then use "Edit Material Network" to load the material? then Right click to save the new material, which will not appear in the catalog because it's a DB? Maybe I am doing something wrong...

Thx goldleaf and jsmack ...

The documenation https://www.sidefx.com/docs/houdini/solaris/kug/textures.html#filter_controls [www.sidefx.com] says: Normally Karma automatically handles choosing mip-levels and texture map filtering".

I tried to change "Texture Blur" from 0 (no blur) to 1 (full blur), but I could not see the difference (see image)! The image is jpg. Do I need to convert the image to a different format (or RAT), do I need build multiple mips level myself, how houdini choose the right mip level (e.g. could not see something like from this distance start using lower resolution mips...). Still learning the proper workflow, and info will be super appreciated