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Reflection transparent

Q and A about functionality and how to solve a special task for your application.

Moderator: Support

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Marko

Reflection transparent

Post by Marko » 01 Aug 2013, 10:12

Hi,
I have an object and want it with a reflection.
If I modify the alpha it becomes transparent in a way that you can see the inner structure. How to avoid this? Thanks.

Cheers Marko
Attachments
Reflection_Transparency.jpg

Christian Krix Schmidt
Posts: 290
Joined: 18 Jan 2012, 11:36
Location: Dubai, United Arab Emirates
Contact:

Re: Reflection transparent

Post by Christian Krix Schmidt » 01 Aug 2013, 10:30

Render the reflection model at full visibility into a Render Target. Display that using an overlay rectangle and a texture. Fade this rectangle and you have a decent reflection. And with a Simple Blur Texture node if can even blur the reflection slightly if you so choose.

Marko

Re: Reflection transparent

Post by Marko » 01 Aug 2013, 11:26

Thanks to you both so far.
Need time to look through your concepts.
M.

Marko

Re: Reflection transparent

Post by Marko » 05 Aug 2013, 11:26

Hi Alex + Christian,
I guess I do not have enough experiences to bring your suggestions to work without a further impulse of you.

@Alex
What it´s wrong or do I miss? (see screenshot)

P.S.: Don´t understand your "...without putting any color into the framebuffer"
Why should I - guess the color is on every object itself???

@Christian
I studied the overlayrectangle example in the Help - but couldn´t transform it into my situation.

General - beside the reflections - the next would be a shadow at the floor - not sure which of both concepts is better for that.
M.
Attachments
ReflectionConcept_Christian.jpg
Concept Christian
ReflectionConcept_Christian.jpg (11.61 KiB) Viewed 4594 times
ReflectionConcept_Alex.jpg
Concept Alex

Christian Krix Schmidt
Posts: 290
Joined: 18 Jan 2012, 11:36
Location: Dubai, United Arab Emirates
Contact:

Re: Reflection transparent

Post by Christian Krix Schmidt » 05 Aug 2013, 14:43

Here is a little example that uses the RenderTarget and SimpleBlur to create a reflection. There are a lot of different ways and tricks you can use. I also added a BumpMap to the reflection as an example. Maybe this help and gives you a few new ideas.

Chris
Attachments
reflectionExample.vza
(13.11 KiB) Downloaded 445 times

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