I have placed glass blocks on top of stone wall for a fountain. The stone looks to be the correct scale, but the glass blocks are waaaaay larger than they actually be. How do I resize the image to achieve a realistic 3d view. There should be 4 blocks high (2'9" +/-) and as many blocks would fit in 8' width; 8" x 8" x 8" plus grout...maybe 10 blocks wide.
You'll need to adjust the Glass Block material that you've applied. Specifically you'll need to change the Vertical and Horizontal Sizes of your Texture. I'd recommend setting the Sample to 1x1 then resizing according to the amount of blocks you see in the preview.
Keep in mind this will change the material globally and every element that uses it.
I figured it out. Make a wall the size needed, then create glass block window same size..allows one to figure out how many glass blocks are required and shows correctly in the 3d window, elevations and sections.
