some questions about rendering

[alikashan]

salam

guys i need to ask you some questions specailly the rendering one is giving me a reall hard time.

1) when i render an image in max lets say 1024x768 and i save it in .tif format with a resolution of lets say 300 dpi. the resulting image i get is 2inchx3inch or some times less than that and when i save the same image in jpeg format it gives a size of 8x6 approximately. this is the one thats is on my nerves. because if i largen the image tif one it loses all its sharpeness

 

2) i am basically a cad user so normally i model in autocad as far as the straight masses or meshes are concerned there is no big problem. but when i import a perfectly smooth circular mass or flooring or table what ever it display and renders as segmented surfaces so destroying the smoothness entirely. i am using facetres at its maximum value in autocad but the problem is there.

 

3) i am new in vray so i dont have the lighting techniques by heart yet so whenever i test render some iamge it takes hell of a time just to have a look at where i am going . and my boss doesnt understand the difference between scanline render and vray stuff. so normally he is mad at me for waste of time.

 

so guys i am waiting

keep smiling and keep helping

ali kashan

[alikashan]

guyssssssssss no answers help needed..............................

[animart]

1) dpi = dots per inch,..... 1024 dots x 768 dots you are rendering then dpi are totaly dependant of the number of dots you render

 

2) just select all the faces and then autosmoth all

 

3) its not so easy explain how to low your time render in vray i think you need to read tutorials about the vray there are a lot

[Ray]

2) Set 'Surface deviation for 3d solids' to 0.013" or the equiv. if you don't use inches.

[alikashan]

salam

thnx guys let me try these tips and then i will post some results again.

keep smiling and keep helping

ali kashan

[Andronikos]

3) use:

 

Irr + Photon Map for super speed

Irr + LC or Irr + QMC = medium speed

Lc + QMC = Quality

 

QMC = best result - super slow!

[bricklyne]

RE: 3)

 

In my experience LC is much much faster (with the right settings of course) than Photon Map across the board for all manners of renders (used with Irr. map, of course). More prone to bugs and artifacts than Photon Map, but faster nonetheless. Regardless, I think you need to test all the methods and combinations on a simple sample scene with minimum settings to see which gives you the fastest result and best quality render. Some combinations may be slower with certain scenes and materials than they normally would with other scenes; which is why you have to test a lot.

 

QMC is undisputably the slowest and most artifact/splotch-prone