The pixel size of an image is just a parameter of the camera or image program that created the image; it has nothing to do with reality. I usually note the actual size of the item in the image, draw a rectangle that matches one dimension of the item, and then use File->Import with "Use as Texture" selected. Click one corner of the rectangle and then the diagonally opposite corner and the texture will be created sized to the real dimensions.

Thank you most helpfull

To roll back a bit... 😮

If you are proposing to use lots of these in your model - like capitals for columns in a classical building - then component instances will reduce the load on the processing... BUT remember that every facet still needs calculating for shadows, what it obscures etc... So over detailing can be a killer !

If they will never be viewed close up. then it might be better to make a less detailed form and apply mapped textured to the facets to give the illusion of a more detailed 3d form...

See this thread
http://sketchucation.com/forums/viewtopic.php?f=79&t=48892&p=439336&hilit=+molding+texture#p439336
It discusses how to make a detailed cornice, using a texture instead of making every 3d facet...

Funny I have made that yesterday 😄
(sorry in French 😉

http://sketchucation.com/forums/download/file.php?id=100356

Hello
thanks for responding.
I didn't have the time to work it out so I used ies lighting instead.

That most likely can be fixed by changing your irradiance map settings. There's an option to "Check sample visibility" that you can enable. You can also increase your "Max rate" to -1 or 0. Lastly, you can increase your HSph. Subdivs to 70 or 90 - which helps with splotchy shadow areas. Worst comes to worst, you can enable Detail Enhancement, but that means longer render times.

the idea of turning of the light is meant especially for the beginner..the sun is a super strong omni light and to compensate it you need to balance the exposure with vray physical camera. THis balancing act creates a different effects with IES light even. and many users becomes even frustrated...

therefore so that you are not solving many things at the same time and you are only looking at IES light effects, its useful to turned off your sun and the camera. this time you only have to take care of your IES lighting. I have done lots of tutorial with VRAY IEs lighting and they are everywhere. One piece of advise,, units affects the ies data. vray working unit is inches. so be sure your unit is in inches... ☀

@cotty said:

If you mean faces with hidden lines in it by "curves", you can activate view -> hidden geometry and use the texture on one partial surface and sample it afterwards...

Hi thanks that works

@dave r said:

Why are you editing the dimensions of the material? Is it not already the correct size?

Repetition will (and must) occur if the material image isn't large enough to cover the face. For that reason short sections of wood grain generally do not make realistic-looking materials. I prefer images of whole boards such as in this image.

http://farm9.staticflickr.com/8436/7974567274_bdf1469cf9_z.jpg

The narrow images don't show the full width of the image like the one on the right does.

Hello Dave, thanks I will keep that in mind

Nice work c-man.

Andy's right. why is the pilaster on the left a shade darker than the rest?

Make sure you are using Fresnel reflections and turn up the IOR to something like 1.85 - then make your reflection glossiness something like .75 as suggested above and turn up your subdiv to 22 or higher or you will get a lot of noise.

Thanks chaps, that made the world of difference 😄

@stefanq said:

Yes, I had this issue in the past. My problem was that the face (surface) was reversed. Use the monochrome style to see if your floor have this problem.
Cheers!

Hi thanks for the suggestion already tried this.

@eidam655 said:

[questionable]i would say that the moment when a texture is loaded into the vray material editor, it doesn't make sense to edit the texture size in SU Material editor.[/questionable]

the solution, imho, is to change the u/v repeat values in the TexBitmap slot. (so to make the texture bigger, the repeat number needs to be lower.)

Hello thanks for the quick response, this solved my problem 😄