topic Re: card model effect in Visualization

card model effect

Anonymous — Thu, 11 May 2023 13:57:48 GMT

Hey all,

I'm currently modeling an urban site for a university project and am having trouble with the renders. I would like the site model to be nice clean white as if it was made of white card or something similar. At the moment when it renders it looks a little grey in many areas. Any ideas?

Thanks in advance,

Mark

Re: card model effect

Anonymous — Sat, 17 Feb 2007 22:17:34 GMT

also, different elements look very different when rendered ie. the slabs im using as building blocks look much darker than the roofing elements which are almost blindingly white...i would really appreciate any advice.

ta,

Re: card model effect

Anonymous — Sun, 18 Feb 2007 01:54:10 GMT

Hi Mark,

It will be easier to help if you could post your scene, and tell us about your light and material settings and which ArchiCAD you're working on.
In the mean time, some tips:

- use Lightworks SkyObjects with soft shadows for evenly lighting or built-in sun shader (ver.10) for finest shadows
- increase ambient light in Lightworks settings
- increase "diffuse" in material settings to make them react more with light (brighter)
- be careful with Sun Object as it likes to burn materials and cast dark shadows same time, if you still need it set it to 50% for start

different elements look very different when rendered ie. the slabs im using as building blocks look much darker than the roofing elements which are almost blindingly white

By being more perpendicular to light rays (sun) roof surface receive more energy than for example wall surface, so it will always be a bit lighter eventhough it's the same material. You can always make two materials - one for walls and second (a bit darker or bit less diffusive) for roofs to compensate, or try to aim for more uniform lighting (using few SkyObjects, no sun)

Hope this helps and post your progress.

Re: card model effect

Anonymous — Sun, 18 Feb 2007 10:24:05 GMT

hi tigr,

thanks for your advice so far.

Im using archicad 10 with pretty much the standard settings. I've now had a good play with the sunlight settings and the lightworks render settings and things are looking much better. Im not sure how to post an image of my work but will try to get one up a bit later for you to see.

thanks again,

Mark

Re: card model effect

Anonymous — Mon, 19 Feb 2007 15:51:50 GMT

Here is what i have so far, still looks really grey...

Re: card model effect

Dwight — Mon, 19 Feb 2007 16:31:19 GMT

Get realistic!!!!!!!!!!!!!!!!!

Use colored light.

Make the sun tint yellow and the ambient and skylight and undersun blue.

This will enliven your image.

Re: card model effect

Anonymous — Mon, 19 Feb 2007 19:12:48 GMT

thanks for all the help guys,

i have tried all the suggestions and have come out with this image.

its (in my oppinion) much better and is more the effect i was going for.

by the way dwight, are there any copies of your book still available? by the sound of it, its well worth investing in.

Re: card model effect

Dwight — Mon, 19 Feb 2007 19:19:12 GMT

You may order the book directly from me using the instructions in the signature at the bottom of this message.

Re: card model effect

Anonymous — Mon, 19 Feb 2007 19:24:09 GMT

Not bad for a start.
I work with AC 9.0 so couldn't play with sun shader but what I did was:

1.Lightworks setting -> Light sources -> Ambient 56%

2.No other light source than Sun and SkyObjects, manual positioning

3.Material settings:
*Color - plain white
*Reflectance -> Matte -> Ambient 3.0, Diffuse 0.3
(high ambient and low diffuse is a key to get soft, light material with no burn outs even with strong sun light)
*Displacement -> Rough -> Scale 0.02, Amplitude -0.05, Detail 3, Sharpnes 4

4.When looking straight - key light on the right hand (around 5 o'clock)second light on the left hand (around 8 o'clock), I'm talking about direction of course, not actual time

5.When rendering is finished, before save, open PhotoRendering Settings -> Brightness -> tweak, apply, if satisfactory than save

6.I attached also combination of Lightworks and Sketch which I'm a great fun of.

Below are the results.

Now tweak, play and post something. Cheers

Re: card model effect

Anonymous — Mon, 19 Feb 2007 19:25:39 GMT

Re: card model effect

Anonymous — Mon, 19 Feb 2007 19:26:43 GMT

Re: card model effect

Anonymous — Mon, 19 Feb 2007 19:27:41 GMT

Re: card model effect

Dwight — Mon, 19 Feb 2007 19:37:16 GMT

Since you have a model set up already, could you please try a series with different ambient colors and interesting skylight color?

Re: card model effect

Anonymous — Tue, 20 Feb 2007 15:31:49 GMT

Since you have a model set up already, could you please try a series with different ambient colors and interesting skylight color?

Dwight, are you refering to my post or mark's ?

Re: card model effect

Dwight — Tue, 20 Feb 2007 15:40:58 GMT

You.
And you have the skill to do it....

Re: card model effect

Anonymous — Tue, 20 Feb 2007 22:28:40 GMT

As soon as I finish some boring paywork, I will be happy to do it.

Re: card model effect

Anonymous — Wed, 21 Feb 2007 22:18:50 GMT

Well, after 20 slightly different renderings I reach some conclusion:
In my subjective judgement (and monitor calibration) the most eye-pleasing combination is:

1. Ambient light 48%, color - warm or cool grey, depends on what kind of mood we need, mine was R164,G159,B142
2. SkyObject 39%, R155,G224,B247, Lat and Long. resulotion - max, soft shadow OFF
3. SkyObject 39%, R235,G222,B147, Lat and Long. resulotion - max, soft shadow ON
4. SunObject 65%, R252,G231,B143 Light sources - 20, angle - 3

Of course those lights work with the high ambient-sensitive material I described before, also my aim was to get evenly lit yet lively scene.

Having one SkyObject without soft shadows keeps the shadow alive, I think soft shadows are too subtle and make the scene flat. It is the second case in AC when the "best" setting is actual worse than the "worse" ( antialiasing)

Re: card model effect

Anonymous — Wed, 21 Feb 2007 22:19:43 GMT

some other..

Re: card model effect

Anonymous — Wed, 21 Feb 2007 22:20:29 GMT

and another..

Re: card model effect

Dwight — Wed, 21 Feb 2007 22:43:32 GMT

16 + 19 are certainly getting there.
Thank you for the examples.