Author Topic: [HELP] Directional Shadow  (Read 4918 times)

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Offline Alang7™

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[HELP] Directional Shadow
« on: April 05, 2015, 02:06:36 am »
Hello guys.

I have some problems about light/shadow system on Keyshot.

I want make a rendering of my 3D model truck with a Backplate + EXR, but the shadow doesn't work good.

My question is: How i can make a realistic directional shadow ?


The EXR + Backplate can be found here: http://www.hdr-sets.com/index.php/free-sets/satellite-01-free.html

I'm using this backplate:


Offline TpwUK

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Re: [HELP] Directional Shadow
« Reply #1 on: April 05, 2015, 04:04:57 am »
Have you added a ground plane ?

Martin

Offline Alang7™

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Re: [HELP] Directional Shadow
« Reply #2 on: April 05, 2015, 04:40:55 am »
Ground plane ?

How it works ? Can you explain me how ?

Offline TpwUK

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Re: [HELP] Directional Shadow
« Reply #3 on: April 05, 2015, 08:25:58 am »
Edit/Add Geometry/Ground Plane - Makes better looking shadows

Martin

Offline Alang7™

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Re: [HELP] Directional Shadow
« Reply #4 on: April 05, 2015, 09:23:07 am »
I tried, but nothing ...



Offline TpwUK

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Re: [HELP] Directional Shadow
« Reply #5 on: April 05, 2015, 10:32:04 am »
Ok try rotating the environment - Tweak contrast and brightness levels on the environment too

Martin

Offline Alang7™

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Re: [HELP] Directional Shadow
« Reply #6 on: April 05, 2015, 12:37:39 pm »
Nothing ....  :(

Offline Esben Oxholm

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Re: [HELP] Directional Shadow
« Reply #7 on: April 05, 2015, 10:55:55 pm »
Hi Alang7
Is it possible for you to share a .ksp of your scene?
I wouldn't mind taking a look at it.

I tried to download the EXR + Backplate from the link you posted, but the webpage doesn't seem to work properbly.

Offline Alang7™

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Re: [HELP] Directional Shadow
« Reply #8 on: April 06, 2015, 07:48:49 am »

Offline Esben Oxholm

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Re: [HELP] Directional Shadow
« Reply #9 on: April 06, 2015, 09:43:42 am »
Hi Alang7.
I managed to download the files from the site and it helped me figure out where you go wrong.

Instead of using the EXR you've uploaded you should use the one called "107_ENV_DOMELIGHT.exr". See attached screenshot.

I don't know why they have EXR. versions of all their backplates, like the one you've used.

Let me know if you get it to work! :)

Offline Alang7™

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Re: [HELP] Directional Shadow
« Reply #10 on: April 06, 2015, 12:30:25 pm »
Yes, it now work!  :D

But, one thing. How i can make a realistic dark shadow ? Sometimes the shadow is too light ...

Offline Esben Oxholm

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Re: [HELP] Directional Shadow
« Reply #11 on: April 06, 2015, 10:49:28 pm »
Yes, it now work!  :D

But, one thing. How i can make a realistic dark shadow ? Sometimes the shadow is too light ...

Great, that's good!

Is it with this particular HDRI that the shadow gets to light?

Offline Alang7™

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Re: [HELP] Directional Shadow
« Reply #12 on: April 07, 2015, 08:07:51 am »
Yes.

Render now is done, but the shadow looks too light.