3.- Applying the Occlusion image
In Photoshop.
The image below is a result of using a “plain” Electric Image render and combining it with an Occlusion pass image as a layer on top of it to control the light modulation. By setting the Occlusion image layer to “Multiply” you will get a predictable result. Of course you can tone down the effect by varying the transparency of this layer.
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 In Photoshop you can vary the shadow density by adjusting the layer opacity |
In Electric Image.
Once Camera has rendered out the Occlusion image you can open up your project again and go to the “Projection Map” tab in the Camera properties window (just double click the camera icon to get to that window…
Replacing the shader with the rendered image map:
Disable or delete the Occlusion shader and add the rendered Occlusion image to the shader list. Then double click the image map and in the “Filter” tab make sure that you set the blend mode to multiply.
If you would want a little blur added to the image just enter a value in the “Blur” field. And, just like in PhotoShop you can also control the influence of the map by tweaking the strength slider to a lower than 1 value.
In After Effects
Of course when animating a scene you would also like to benefit from the great Occlusion effect in your animations. To do this simply render out one pass with just the Occlusion shader active and all render options turned off except “bump/ displace” and shaders. The other pass would be the color pass where you would typically deactivate the Occlusion shader in the Camera info window and activate the whole array of render options like they are usually set in Animator. With these two animations finally move over to Adobe’s After Effects and then add the color pass first and the Occlusion pass on top of that.
Switch the Occlusion pass to a “Multiply” mode and enjoy your results!
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