vraydirt and LWF

[SvantePanter]

Ok... thank you for your replies! I installed the color correction plugin... what it does is it force a bitmap to look a certain way no mather what? My quick tests didn´t work very well, have to give it another shot...

[beestee]

Assuming you have your gamma setting in MAX preferences set to 2.2, you basically need to counteract this effect since the native functionalities of procedural textures are made to work in the default MAX envirionment (gamma correction disabled). The VRayDirt map is calculated mathematically within the program, therefore it is a procedural map.

To do this, you will embed the VRayDirt map in the ColorCorrect map and set the Gamma setting in the ColorCorrect map to 2.2. Bitmaps can be handled automatically if your MAX Gamma preferences "bitmap input" is set to 2.2, making the necessity of the ColorCorrect map strictly for procedural maps.

To illustrate the effect visually, this top image is how MAX would calculate a B/W gradient using default settings:

And with Gamma correction set to 2.2:


Notice how the gradient shifted to white, causing an unbalanced gradient, and in the end, and undesired effect. Using the ColorCorrect plugin will readjust the gradient to make it compatible with Gamma correction set to 2.2.