Attached Link: http://www.stansight.com/Freebie/bricks/

I'm trying to create a wall using the textures I found on a website (see link) but I don't know how to use the bump maps. (I've never really understood how to use bump maps.) There is a *.jpg and a corresponding *.png but I'm not sure how to use them together. Can anyone help? (I've gotten a far as applying the *.jpg to a cube but don't know what to do with the *.png)

bump maps give information to the render engine in terms of what is high and what is low in a texture, on a black to white , 0 - 100 altitude (basically). black is 0, white is 100. what you need is the following settings

basically you need to set the bump map so that bryce understand what is high and what is low.

afaik, alpha maps are used for reflectivity and so on, and not for bump. i might be completely wrong on this. usually what i do is that i use the same texture for bump. shrug

That's great Draculaz, thanks! Being able to actually see the settings made a difference and it works now. Thanks again!

Alphas are used for everything below the color section, IOW anything with a number next to it (except refraction) can use an alpha map to determine how that channel is used if a marker is placed in the slot.

For my two gallery images featuring the Earth, i used an alpha map as the transparency map...and they can be used for reflection, bump, anything.

I thought alpha maps didn't have bump channels.

An alpha map in Bryce is simply a greyscale map, each shade of grey denotes a value from 0-100 (black 0, white 100).

The bump channel in Bryce can have negative values thus reversing what the alpha map says and if you type in a value it can go up to 999. In the case above in drac's pics the second window in the texture is where bryce is getting this info, first window is color.

Message edited on: 09/20/2004 22:13

Both alpha maps and Bump maps are just grey scale images where the value of the given pixel determines the bump or transparent amount. There's a chart some where that shows which channel is looked at for each dot in the material lab. I think its channel A for color values and channel B for numeric values. That's probably not right cause there's that third channel. -- Aldaron posted while I was off looking for the chart. --

Message edited on: 09/20/2004 22:17

Besides, Bryce doesn't do PNG.

-- erlik

eh. Didn't watch. A and B channels are for textures. C is for the alpha map - if you use A and B together - which will determine how they are mixed. And D can be used for a separate bump or transparency map.

-- erlik

Suggest getting Real World Bryce which will explain the DTE in expansive detail.