Adobe Photoshop effects, drawing, text effects, designing - http://www.eyesontutorials.com
Photorealistic material rendering
http://www.eyesontutorials.com/articles/5287/1/Photorealistic-material-rendering/Page1.html
By Jeka !
Published on 05/20/2009
 
Girl Photorealistic material rendering.
This tutorial will cover photorealistic material rendering using Photoshop brushes. We will make textured balls (spheres) like in 3D apps.

This tutorial will cover photorealistic material rendering using Photoshop brushes. We will make textured balls (spheres) like in 3D apps.

photorealistic material 

rendering

Let's create a document first:

photorealistic material 

rendering

Really wide:

photorealistic material 

rendering

So have your area selected: all the time while you paint. Our first specimen will be - rock texture. When you basically work in digital media like I do you have a million ways to do that: starting from a photo (mapping in the area) and even had texturing with a mere brush. However you should know how it's done the primitive way and the thing that we are using custom brushes can be judged like a little cheating.

SO: Here are my custom brushes: all the 500.

photorealistic material 

rendering

Now the rock, basically this rock has no such reflecting ratio like for example other rocks have. You should always consider the shadow - reflection value of the materials.

photorealistic material 

rendering



photorealistic material 

rendering

You can see the details here: dot bumps and 1px basic brush scratches.

photorealistic material 

rendering



photorealistic material 

rendering

Fabric: Now every fabric material has different reflection - shadow value - depending on the many things (from all this material consists).

I've created a custom brush for my fabric. You will have it in support set that comes with this tutorial.

photorealistic material 

rendering



photorealistic material 

rendering



photorealistic material 

rendering

The same thing with rendering (leave the selection on all the time)

photorealistic material 

rendering



photorealistic material 

rendering

Overlay the object a little bit. Gives a contrasted green

photorealistic material 

rendering




photorealistic material 

rendering

Metal: now the metal is completely different thing. It is very shiny. The shadow - reflection value must be very high: that meant no matter what the color of the metal is you will have to use white (top reflecting point) and black color (inner shadow). The metal surface is often very smooth - that we will do the rendering with a mere soft edged brush (maybe with noise turned on).

photorealistic material 

rendering

Going darker and darker:

photorealistic material 

rendering

Some color:

photorealistic material 

rendering

Scratch the surface using basic 1 px brush.

photorealistic material 

rendering

Drop some light reflections using ROUGH brush. The metal has very strong counter light coming from the edges.

photorealistic material 

rendering

Gesso: now gesso has no wide shadow - highlight value. That means we will be using white (primary) and light grey (shadows & mids). Use soft brush too.

photorealistic material 

rendering



photorealistic material 

rendering

Cast iron: now the cast iron is black and has a very small reflecting area in this case. Moreover as this material has rough surface: that is why we have to use textured (dot texture brush) for the reflection.

Fill the selection with black color first.

photorealistic material 

rendering



photorealistic material 

rendering



photorealistic material 

rendering



photorealistic material 

rendering



photorealistic material 

rendering

And that's a wrap. Practice different materials. Because I thing the Texture photo usage is a little cheating. This is a good advantage for you to know how to render the materials using plain means.

photorealistic material rendering