Postproduction: Photoshop
Creating custom textures:
We begin our postproduction on creating custom textures for Revit, from page three of the “The Bach”-Revit post.
We have been modifying existing Revit materials to create new materials within the project but what do we do when we need to create new maps that do not exist in the library?
This is when a postproduction application like Adobe Photoshop is appropriate, this can be difficult and frustrating and you might be better off purchasing premade tile-able maps from a supplier like dosch. It will be very difficult to make a better looking grass material in Revit than the one that comes shipped with the product. But if you wish to perservere the first video below goes through one of the techniquies available for creating custom tile-able maps (maps that repeat without a distinct pattern), in this case grass.
We start with a image we have downloaded of the material we want to recreate, and copy it several times to see how it tiles. We then move onto using the offset tool to move the exterior edges of the image to the centre and then the clone tool to hide these edges. We make several copies of this layer, on one we apply a large radius Gaussian blur so only the tone remains, on another we run a High Pass filter and then we select a multiply on these layers and adjust the levels as necessary.
I finish with saving a desaturated and contrasted version for a bump map.
Once you are happy with your material save it into the custom materials folder you created earlier. Note: Be realistic with the map size and format, in most circumstances a image that is less than 1000×1000 pixels max i.e. a couple of hundred kb *jpg file will be sufficient
Note: The grass texture was sourced from freefoto.com
The second video creates gradients to give the illusion of corrugated steel.
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