Bitmap receding into the distance becomes blurry in 3ds Max / Vray

What to do when texture rendered in a steep angle becomes blurry in 3ds max? Do you have a problem with blurred bitmaps in vray? Especially when the bitmap is receding into the distance?

The problem is the filtering of that blurred bitmap. There is couple options you can play around with:

1. Change the "Blur" value

• Open Material editor
• Select the Bitmap that is causing the problem
• Under Filtering you can see Blur value 1,0 by default
• Lower the value and find best setting for you. (Usually around 0,1-0,8)
• Lowering Blur value too much might cause Moire patterns and slower rendering! So test your settings

2. Change filtering method to "Summed Area" or "None"

• The default method is "Pyramidal"
• Using Summed Area increases memory usage by 400%! This might not be the best options if you have a large bitmap
  
• Using None method might cause Moire patterns and texture crawl
  

3. Use Super sampling in scanline 3ds max

• Increase from default 1/4 to around 1/16

Try these methods and see which works best for you. Remember to test render and keep an eye on possible Moire patterns and lowered rendering times. Also remember to use uncompressed texture maps like Tiff, Targa, PSD. Using JPG will cause increased memory usage and lower quality.