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nelson
10-20-2014, 08:12 AM
Hello,

It's been awhile since I've used Lightwave. When I do a frame render and right click, it shows me the percentage of color. How can I get it to show 0-255 values. The only reason I need this is since I am using Sasquatch and it needs those old 8-bit values for color.

Thank you very much,

Kent Nelson

nelson
10-20-2014, 10:03 AM
Just to clarify, I'm right clicking on the rendered frame to get the RGB values from the image, but I don't see how to change the numbers from percent to 0-255 RGB values.

MSherak
10-20-2014, 10:29 AM
Just to clarify, I'm right clicking on the rendered frame to get the RGB values from the image, but I don't see how to change the numbers from percent to 0-255 RGB values.

Take the % and multiply it by 255. 100% equals 1.0

So if the colors show 60.79%, 71.24%, 91.32% this is what it should look like below.

0.6079 * 255 = 155.01
0.7124 * 255 = 181.66
0.9132 * 255 = 232.866

Round them up or down to the nearest whole number. So 155,182,233 is the 8-bit value.

-M

JoePoe
10-20-2014, 10:41 AM
Always nice to know the math :thumbsup:

But, if you don't want to calculate..... ;)

Go to Image controls in the Render Window.
Turn on Exposure (but don't change any other settings).
Now your values will be in 0-255 on mouse over.

125136

ernpchan
10-20-2014, 11:47 AM
Go to Image controls in the Render Window.
Turn on Exposure (but don't change any other settings).
Now your values will be in 0-255 on mouse over.


Learning something new today! Thanks.

nelson
10-20-2014, 12:47 PM
Thank you guys so much! These are the kinds of things I forget if I'm not using Lightwave on a regular basis.

Kent

gerry_g
10-20-2014, 01:56 PM
LW 11 onward does this through the colour picker (there is a little drop down you toggle open), you can select values from screen or a selected image and they are all 0-255 8 bit values, I personally find this quicker still

nelson
10-20-2014, 02:37 PM
Gerry G,

Thanks. Unfortunately, the new color picker and Sasquatch don't play well together.

gerry_g
10-20-2014, 04:47 PM
my bad thinking FiberFX, should learn to read

Sensei
10-20-2014, 07:43 PM
I rendered image.

In Image Viewer I see percentage of color.

Render has been automatically saved to PNG by Auto Render Saver (that you can download for free from http://www.trueart.eu ).

So, I drag'n'dropped file back to LW to Image Editor.

And then where ever I click RGB is in range 0-255,0-255,0-255.

See:

http://forums.newtek.com/attachment.php?attachmentid=125141&d=1413855584

http://forums.newtek.com/attachment.php?attachmentid=125140&d=1413855584

Rendered image is in HDRI floating point format.
PNG image is in 24 bit pixel format.

gerry_g
10-21-2014, 03:14 AM
still say all of the above can be done from the colour picker without the need to transcribe the values, here is a classic example of Lighwave Group actually implementing something useful yet every one is still making out to be such hard work. Unless I have have really missed the point here all that is being attempted is to freely read a current value from either on screen, a rendered image or a loaded image (even from VPR if desired), all of which is done far better through the colour picker in LW 11+

Sensei
10-21-2014, 03:34 AM
(...) all of which is done far better through the colour picker in LW 11+

That's completely not used by SasLite..
Which has been explained in post #8.

gerry_g
10-21-2014, 03:39 AM
true but your method requires a render to be made to access the colour info, so why not just do a native LW render and use the colour picker