Mediaeval home

[Allan Chesney]

Hi Garry,

Looks great with all the timber turned around - massive job!

Question for you Jack:

I notice that an issue I have experienced a number of times is evident in Garry's image. I know you have done a lot of work with different roof styles and wondered if you have seen it, know the cause and solution. I am referring to the two triangular patterns on facia of the lowest edges of the roof. Usually I come across it on the facia of gables. In Garry's case the gable is OK but the next section down is affected. Can you throw any light on this?

Allan

[the cad man]

...the two triangular patterns on facia of the lowest edges of the roof...

Yes, I've noticed that myself and wondered what caused it.  It looks like a partial shadow.

Gaz.

[Allan Chesney]

Hi Garry,

Not it is not a shadow in the normal sense of the word. As you can see on my example below - there is nothing to make a shadow at all. It appears to be something to do with the the diagonal lines you sometimes get across the face of a surface (I think!  ) as it is always from corner to corner of the gable facia. It does not happen in Basic render - another reason for using basic outside!

Allan

[Doug.S]

Allan, for your example it does appear to be a vertex triangle problem (may be same on other image too? Look at every eave/fascia, same problem, but slightly different triangle)

Two possible reasons:

- the overall object should have all triangle faces lie in the same plane as the board is straight and flat; but this one triangle may not lie in exactly the same plane. Why? don't know unless it is a bug of some sort. Thus renders incorrectly from improper calcs.

The typical correction in a vertex modelling program is to select all those faces on that side and "make co=planar", but the eaves/fascia object is not readily accessible outside TFP as it is an internal construct. Could be fixed in a work-around by placing a small plane just very slightly in front of the area and make it same texture; or fix in post via Photoshop or similar program.

- second possibility is that the texture "normal" is facing "in" instead of "out". Could be fixed in external vertex modelling program by 'aligning normals'...but same issue of it being a TFP internal object....and I suspect this is not the issues as TFP more often renders stuff with no texture as "white" not shadow gray.

Seems like developers should look at this one. Same issue in Envisioneer?

[the cad man]

Wow Allan..."shadow" problem aside, that is a SWEET model!  Some day I'll have to get you to teach me how to make those angled bricks on the window sill...nice!

Gaz

[Doug.S]

Wow Allan..."shadow" problem aside, that is a SWEET model!  Some day I'll have to get you to teach me how to make those angled bricks on the window sill...nice!

Gaz

search this forum, Allan has posted the info earlier....I think in the last few months; it is not hard once you know the steps.

[Allan Chesney]

Hi Garry,

... how to make those angled bricks on the window sill...

Try these posts for the principles: http://forums.turbofloorplan.com/index.php/topic,2120.msg9397.html#msg9397
and http://forums.turbofloorplan.com/index.php/topic,867.msg4159.html#msg4159. Dont be confused with the latter one mentioning guttering - the principle is the same.

Use the Layout toolbar's Line to draw the shape of the sill (if it is not just straight).
Right click the Line and Convert to Members.
Use the settings in the image below to make the Member to slope etc.
It can be stretched as needed and elevated into mosition.

Allan

[Jack Zimmer]

Hi Allan,

I'm on vacation , so not up to speed with the Forum. On your question about missing triangulation of roof fascias.

I believe you used Advanced rendering on the exterior view

This is showing the 'normal' problem that some surfaces exhibit when Radiosity is used. I don't know why the surface disappears, but it is similar to drawing a curved wall right to left verses left to right. In this case the triangulation causes one surface to be drawn opposite the other , thus causes one to 'not be normal'.

The  best answer I can come up with is that the old , fantasitc, Lightworks rendering engine used this 'reverse' method of drawing an object to get glass transparent, similar to our method of assigning Magenta.

So the problem has to do with the Rendering engine and Radiosity. In Realtime Landscape you somtimes lose a whole fascia when importing TFPlan work.

Someone with programing experience would better know the reasons why.

Jack

[Allan Chesney]

Thanks Jack,

It is easy enough to fix after rendering but I just thought you may know a workaround.

Shame TFP doesn't use Lightworks - it was excellent!

Hope you have a great holiday!

Allan