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Cinema4D/Maxwell Render V1.5 HDRI Tutorial - Updated

Posted: Sun Apr 30, 2006 11:28 pm
by Tyrone Marshall
Basic Tutorial for Rendering HDRI in Maxwell Render V1.5

By Tyrone Marshall AKA Continuumx

Disclaimer: This tutorial requires basic level of understanding of Cinema 4D release 9.52 software see www.maxon.net for details or your program manual for help. It is also recommended that you read the Maxwell Render V1.0 manual as well.

Tutorial assumes you can setup basic scene with Cinema4D camera and have your scene elements established including Next Limit camera tags, material tags, and Cinemaxwell plugin available.

Steps:


01 Scene Setup

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Have your scene ready with maxwell render camera and tag, objects with cinema 4d material and next limit material tags.

02 Create Sky Object

Under "Objects" menu of Cinema 4D, select "Scene" and then "Sky'
A sky object is placed into your scene.

03 Apply Skymap Tag


Select this sky object and apply a Next Limit "Maxwell Skymap" tag from object tag menu under object's file menu.

04 Select Channels


Click on the Next Limit "Maxwell Skymap" tag. Under the attributes menu, enable "Bckgnd. Map Screen Mapping Enable".

See notes below for what channels are supported in Cinema 4D. For this example, only the color and luminance channels will be used. The Cinema 4D color texture map channel controls the background channel. The Cinema 4D luminance texture map channel controls the illumance channel. You load your HDRI maps in these texture channels.

Note: The plugin now allows very good HDRI control. I personally prefer to use Cinema4D to get the general idea of my scene established, using this procedure. Then I render the scene out to a Maxwell Render scene format file and bring up studio for finer control and editing of this scene.


05 Create HDRI Material


Create a new Cinema 4D material.

06 Set Channels

Activate only the color and luminance channels.

07 Load HDRI Image

Load your HDRI into the texture map channels for both color and luminance channels.

08 Apply HDRI material to Sky Object
Apply this material to your Sky object. This is a logical application for the Skymap Next Limit tag for establishing HDRI because in Cinema 4D our Sky object acts as a skydome during normal radiosity rendering through Cinema 4D. When you apply the HDRI Cinema 4D material to the Sky Object. A texture tag will be generated automatically.

09 Maxwell Skymap and Attributes Manager
Now again select the Maxwell Skymap tag so the settings become visible in the attributes manager of Cinema 4D.

10 Texture Tag to Sky Map Texture Tag Slot
Drop the Cinema 4D Texture Tag from the Sky Object to the Texture Tag slot in the Maxwell Sky Map Tag from the attributes manager.

Note: Remember this basic rule for using the current version of Cinemaxwell, to apply any Cinema 4D material that includes a map of any kind to an object to be rendered in Maxwell Render should always have its material texture tag be dropped into the corresponding Maxwell Material texture tag slot.

11 Setup Cinemaxwell Plugin

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Select the Cinemaxwell plugin by Next Limit. Do not activate the skydome, leave all other illumination off such as physical sky as your scene will be lit by the HDRI.

12 Render

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Click on the Cinemaxwell plugin render button. Done!



Notes:

HDRI information used in this scene

This HDRI was created in Cinema 4D version 9.5 by myself. You can see the original text about how this was created here:

ref: http://forums.cgsociety.org/showpost.ph ... stcount=67

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Image

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GET HDRI FILE NOW!

Notes:

Cinema 4D Channels to Maxwell Render Image Based Mapping

C4D Color Channel----------------Background
C4D Transparency Channel------Refraction
C4D Reflection Channel-----------Reflection
C4D Luminance--------------------Illumination

How to Control the X and Y offset of the HDRI?

Use the X and Y Offset in the actual Cinema 4D Texture Tag for the HDRI to control the rotating of the HDRI in the X and Y using this feature.

Posted: Mon May 01, 2006 12:55 am
by spekoun
Super!! Thx

I am looking forward next one (clipping??) :wink:

Posted: Mon May 01, 2006 8:19 am
by zoppo
thanks tyrone - just one thing: i found cinemaxwell able to translate three of the four channels. can't check it right now but i'm sure that just one was missing (to be honest - doesn't matter if it's one or two. one missing makes the whole thing useless ...)

z.

Posted: Mon May 01, 2006 9:15 am
by Tyrone Marshall
zoppo wrote:thanks tyrone - just one thing: i found cinemaxwell able to translate three of the four channels. can't check it right now but i'm sure that just one was missing (to be honest - doesn't matter if it's one or two. one missing makes the whole thing useless ...)

z.
Thanks Zoppo, let me know the other channel. :D

Posted: Mon May 01, 2006 9:38 am
by zoppo
8)

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Image

Posted: Tue May 02, 2006 5:10 am
by Tyrone Marshall
Thanks Zoppo!

Posted: Fri May 05, 2006 4:00 pm
by goncalo
Hy Tyrone

Tell me one thing please

You say just for render with HDRI image and turn off sky dome, and physical sky,... so we can´t use together?
To have shadows... and sun direction on the scene?

Thanks

Posted: Fri May 05, 2006 4:24 pm
by Tyrone Marshall
goncalo wrote:Hy Tyrone

Tell me one thing please

You say just for render with HDRI image and turn off sky dome, and physical sky,... so we can´t use together?
To have shadows... and sun direction on the scene?

Thanks
For this tutorial, it is turned 'off' to show that HDRI works! Skydome and physical sky should work in theory.

Posted: Fri May 05, 2006 4:58 pm
by goncalo
Tyrone Marshall wrote:
goncalo wrote:Hy Tyrone

Tell me one thing please

You say just for render with HDRI image and turn off sky dome, and physical sky,... so we can´t use together?
To have shadows... and sun direction on the scene?

Thanks
For this tutorial, it is turned 'off' to show that HDRI works! Skydome and physical sky should work in theory.
Theory and ... really works

Image

i gonna try with MULTILIGHT now... for more control of both kinds of light :D

Posted: Fri May 05, 2006 5:34 pm
by goncalo
and works fine with multilight also ...

But i think i can´t controle the HDRI

Just the sun... i need to study more this...

GREAT :D

FANTASTIC!!! thanks NL :D

Posted: Sun May 07, 2006 2:11 pm
by rendertaxi
Hi!

the missing refraction channel is controled via transparency in the C4D Material.

Felix

Posted: Sun May 07, 2006 6:46 pm
by Tyrone Marshall
Thanks Felix,

I added your pdf to the tips and techniques section.

Very helpful!

Posted: Fri Oct 20, 2006 1:21 am
by zoetropeuk
Do we know if they ever going to fix the SkyMap tag ??? Just tried the latest UB1.1 and downloaded what I thought was an update Cinemaxwell plugin. But shock, horror, it still doesn't work :(

Also, why can't they syncronise the version numbers, my plugin in C4D still says 1.0 :(

Matt

All Channels

Posted: Sun Mar 18, 2007 8:09 pm
by adri
Hi

'Click on the Next Limit "Maxwell Skymap" tag. Under the attributes menu, set the channel option to All Channels'

Where do I set this option?

I've looked and looked and cannot find it in C4D R10.

TIA

Adri

Posted: Sun Apr 15, 2007 3:30 pm
by rickyinmotion
same problem here