Texture Colors Reposted

[Anonymous]

I put this in the wrong topic.

For some reason, I keep getting some sort of bug when I try to do a search.

Most of the time, I do simple renderings as they are meant to get client approval to move to the next stage. Now with Cinerender things are a lot better and I am using more materials and textures.

So my question is, is there a simple way to slightly adjust the color tone of a texture image within CineRender? With my admittedly limited rendering skills, I don't think there is, but I am hoping I wrong. For an exterior material (stone etc. ) I have adjusted sun color, but that can only do so much.

thanks,

Don

[Anonymous]

Hi All:

Anyone has a suggestion for this issue? I don't want to make radical color changes to an image, but is there a way to slightly tone it from a cool grey to a warmer grey?

Thanks

[Anonymous]

The easiest way may be to adjust the image (or a copy thereof) in Photoshop, then assign it to the surface material. If you make a copy of the image make sure it is in a loaded library. If you adjust the original Reload your libraries (but be aware if it is part of the standard AC library any future library updates will overwrite it, which is why a copy is better).

[Erwin Edel]

The same sort of colour adjustments you would make in photo editing software, are available in the cinerender material settings. Changing the hue, saturation etc by adding a layer.

However the more complex preset materials use a lot of layers (again much like image editing software) to create the colour. Often there are random generated 'noise' layers to reduce the repition you would get from just a texture.

A quick way to determine which settings (besides the obvious 'color') are affecting the colour settings, you can untick the settings one by one to see how they are affecting the material.

It is not so much complex as it is time consuming in my experience.

The help file is quite extensive as is the help center and I find the youtube tutorials on materials help as well.

[Laszlo Nagy]

Don,
Here is a method I think can give you the result you want.
Edwin is right, you can create a Channel, for example the Color channel by using Layers, id est by Layering the various Shaders onto each other.
Here is the "Brick- Red" Surface. If I expand the Color channel, I can see that there is a Shader layer under it, which is the Brick shader.

[Laszlo Nagy]

To create the this effect we can add the Color shader layer to the Brick layer of the Color channel.
Select the Layer item in the left pane and in the list on the right you can see that in now consists of one layer: the Brick Shader.
Click the Add Shader button above the list of layers (the "sphere with a plus sign" icon) and a new shader layer is added to the list. By default it is a Color shader. Use the little drag handle before its name to drag up the list above the Brick shader layer.
This is important because layers are applied onto each other going from bottom to top. We want to apply an effect to the Brick shader layer in this case.

[Laszlo Nagy]

Now select the Color\Layer\Color item in the left pane and click the Color field in the list in the right pane to define the modifier color. In the attached image I set it to a dark, not too saturated brown color. In the upper left corner you can see that the whole surface became this dark brown color.
In the next step we can do something about that.

[Laszlo Nagy]

Again select the Color\Layer item in the left, and in the list on the right, adjust the Mixing Strength slider in the row of the Color shader layer. For example, if I adjust it to 60, the strength of this effect will be only 60%.

[Laszlo Nagy]

The second column in the list (where it says "Normal") is the Mix Mode column. That is where you can specify how the effect is applied to the shader below it, for example, does it taken into consideration the Color, the Hue, the Luminance of the input shader? You can experiment with those as well. For example, the Color or Multiply options may also give good results.

[Anonymous]

Laszlo:

Wow, how cool is that?!! I'll try it out, but that seems to be exactly what I was looking for.

thank you!!

Don