Using Gamma Correct Node On Color Attributes

[wesm]

Hi,

I am pretty new to maya. I am looking into linearizing texture maps and color values. I can't seem to figure out how to properly connect gamma correct node to my shader. In the hypershade window I have a blinn node. I am then dragging the gamma correct node to the workspace and connecting the outvalue to the color value of the blinn shader. This makes my surface black. I check the attribute editor of the gamma node and I am changing the gamma to 0.4545 to linearize my color values. I am also adding the mia_exporsure lens shader with a 2.2 gamma for video output.

Can anyone please tell me how to setup gamma correction on a color value of the blinn shader?

thanks,

wes

[joojaa]

you need to connect some color into the gamma node.

[wesm]

HI JooJaa,

Thanks for the info. Can you please explain a little more on how I might do this? For example, If I have a blinn node that is applied to a polygon sphere how do I connect the gamma node? How would I connect color to the gamma node? There doesn't seem to be a solid color node. I pretty new to maya, so I'm not real good with the hypershade window yet.

thanks,

wes

[aenarion]

I think what he means is that you must have an input node to gamma correct node before you connect to the material. The way i do this is i just bring a texture in for example drag and drop a file node and then open a file. Then drag the gamma correction node and a material in the work area. At this point you must have 3 nodes, material (blinn, lambert etc), gamma correct and a file texture (for example). Now drag and drop the file node onto the gamma correct node and choose value. Then drag and drop the gamma correct node to the material you got and choose color.

Then double click on the gamma correct node to change the 3 d values. if you want to change the gamma just use the same values on all 3 fields.

That's the way i do it although MR gives an error but renders it...