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  #1  
Old June 20th, 2015, 05:17 PM
raindog337 raindog337 is offline
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Max 2014 rendering problem

Iím using max 2014 and am having a problem with rendering.
Iím trying to render to texture a shape using Ambient Occlusion each time I do, It will only render in the top view and it always comes out in a solid color with no details.
There are several mental ray choices and each one has the same result. Iíve followed some YouTube tutorials very carefully, but I get the same result.
Does anyone know what could be going on?

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  #2  
Old June 21st, 2015, 08:08 AM
VG-architect VG-architect is offline
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If it's only rendering in the top view then you must have locked it down to only render in the top viewport!

Go to the render setting dialog box (F10) then at the bottom you will see production and on the RT side you will see the padlock in yellow. unlock the padlock and change the drop down to the perspective re-lock it so max can only render from that perspective view.

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Old June 21st, 2015, 04:56 PM
VG-architect VG-architect is offline
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unless we see the image in the Pview then we cannot tell you what is going on until we see that render. so you would need to render from the P.view!

Last edited by VG-architect : June 21st, 2015 at 06:18 PM.

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Old June 21st, 2015, 07:09 PM
raindog337 raindog337 is offline
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Ambient Occlusion render problem

I've attached 5 images showing the steps I take to try and get an Ambient Occlusion render. You'll notice that the final render comes out almost all with with no shadows.
Attached Images
File Type: jpg 02 ray trace setting slected.jpg (91.5 KB, 86 views)
File Type: jpg 03 Ambient Occlusion seleceted.jpg (95.1 KB, 82 views)
File Type: jpg 04 quality selected.jpg (93.9 KB, 80 views)
File Type: jpg 05 top view rendered to texture.jpg (88.0 KB, 73 views)
File Type: jpg 06 prespective renders.jpg (104.2 KB, 76 views)

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  #5  
Old June 21st, 2015, 07:22 PM
VG-architect VG-architect is offline
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Use an ambient occlusion when you want the surface information to describe how much ambient light the surface can receive. The ambient occlusion map considers the obstruction of the light by surface contours and surrounding objects. By using the ambient occlusion map when rendering, you do not need to set up special lighting, replace materials on the objects, or use with global overrides because the ambient occlusion map already accounts for these settings.

You can use ambient occlusion maps with or without a Projection modifier and for many different purposes. Use them to mask layers in Adobe Photoshop, for items such as painted edits and texture maps. Also use them as dirt maps, or as masks for reflections or specular light for example.

Don't you have access to the reference file!

Last edited by VG-architect : June 21st, 2015 at 07:33 PM.

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Old June 22nd, 2015, 06:11 PM
raindog337 raindog337 is offline
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Max 2014 rendering problem

The main problem Iím having is with getting the software to render out any AO at all. I canít even get a simple box and sphere to render out a AO image. Iíve read the help files and they donít get me anywhere as well.

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Old June 22nd, 2015, 06:52 PM
VG-architect VG-architect is offline
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First you need to setup an over-ride material in the rendering dialog box in the processing!

now set choose your material in the material over-ride make sure you have it ticked/checked! in the none button choose your material from scene or create a new MR material. once that is done you need to drag it into your slate or compact material editor name it AO.

under the MR in your slate choose your ambient /reflective
drag it onto your surface shader

now render your scene once you have turn off the GI and photons if your have them on.

in the ambient /reflective change the samples to 128 and change the spread to to about .5 and re-render. change the falloff to about .5 and re-render
to see the way your render turns out


you may need to setup a beauty pass

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Old June 25th, 2015, 07:03 PM
raindog337 raindog337 is offline
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Max 2014 rendering problem

I found a maxscript that creates AO automatically. Thanks for the advice.

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Old July 15th, 2015, 01:53 AM
dianaazura dianaazura is offline
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3ds Max

By using the ambient occlusion map when rendering, you do not need to set up special lighting, replace materials on the objects, or use with global overrides because the ambient occlusion map already accounts for these settings.

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