Exercise 210


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Introduction:

In this exercise, you learn to adjust/use bump, transparency, and displacement maps to enhance textures. You will work with imagery downloaded from the web as well as V-Ray for Rhino. If you have already taken Digital Tools for Designers (Archi 135), you may wish to make your own materials using Photoshop.

Part 1:

Part 2a (Non-Archi 135 Graduates):

  • Browse the web for existing materials. You should try www.vraymaterials.co.uk. Many of the materials available will download with a .mat file instead of a .vismat file. You will need to build your own material (.vismat) using the download’s diffuse, bump, displacement & transparency maps.
  • You should download at least 4 materials for this exercise (preferably without .vismat files)

Part 2b (Archi 135 Graduates):

  • Download your own photos of texture or select Creative Commons licensed images (http://search.creativecommons.org/). You will need to pick two textures. One texture needs to have some transparency (a screen, mesh, or similar)
  • Follow Photoshop 1.22 [Tiling Texture] to create a tileable texture for each image selected above. If you are unhappy with the results, pick a new material/texture to work with.
  • Make sure to enhance the image as necessary (Try following Photoshop 1.2 [levels]Photoshop 1.3 [curves]Photoshop 1.4 [pop], & Photoshop 1.5 [dodge & burn]). I will demonstrate several of these techniques for students who have not already taken Archi 135.
  • Please also categorize your post as “Digital Tools For Architects” & “Exercise 210”
  • Follow Photoshop 1.21 [transparency maps] to create a transparency map for your selected image. Save this image to a Materials folder on your flash drive with “_transparency” appended to the file name.
    • Note: Black regions in this image are transparent, white regions are opaque. Grey is semi-transparent.
  • Next, with the same or a different material, follow Photoshop 1.20 [bump maps] to create a bump map for your image. Save this image to a Materials folder on your flash drive with “_bump” appended to the file name.
    • Note: Black regions in this image stick up (out) slightly, white regions are flush with the surface. Grey ranges are in between.
  • Next, with the same or a different material, follow Photoshop 1.19 [displacement maps] to create a displacement map for your image. Save this image to a Materials folder on your flash drive with “_disp” appended to the file name.
    • Note: Black regions in this image stick up (out), white regions are flush with the surface. Grey ranges are in between.
  • Repeat to create additional materials OR go back to Part 2a and download additional materials. You should have 4 total materials to assemble when moving to Part 3.

Part 3:

  • In the Materials Test.3dm file you opened in part 1, create a new material for each material downloaded/created.
  • Follow V-Ray 8.6 [texture map] to create and assign a diffuse texture map to your new material. Apply this material to the sphere and cube in the sample scene.
  • Follow V-Ray 8.7 [transparency map] to add a transparency map to the material if appropriate.
  • Follow V-Ray 8.8 [bump maps] to add a bump map to the material if appropriate.
  • Finally, follow V-Ray 8.9 [displacement map] to add a displacement map to the material if appropriate.
  • Look up the IOR (Index of Refraction) for the material (via Google) and adjust on a new “Reflection Layer” if appropriate.
  • Render the “Render - Material Test” viewport (Saved View) with V-Ray and save the .jpg result.
  • In the V-Ray asset editor, follow V-Ray 8.11 [export .vrmat] to save the .vrmat of the material.  Make sure to save any/all maps (diffuse, bump, displacement, transparency) you used when creating the material.  Create a .zip file that contains the .vrmat and all maps and save the .zip file to your flash drive.
  • Repeat for 4 materials (either downloaded (Part 2a) or created (Part 2b). You should have 4 total materials.

Part 4:

  • Upload each .zip package of material to a separate post on the course website. You should categorize the material under the “V-Ray Materials” section on the right column. The title of your post should be the name of your material. Do not include your name in the title.
  • Upload your rendered image for each material (Step 17) and set it as the featured image for your post.
  • If you download materials from the web for this exercise, you MUST also post a link to where you downloaded the original material files that you used.
  • You can view all materials on the course website by visiting the V-Ray Material Library under the Resources menu.

Part 5

  • With any additional time, compose a scene of objects that use your new materials and render the result. Post this if you finish as another post.
  • You do not need to comment on this exercise.

Downloads: