KeyShot Quick Tip - Creating Transparent Shadow Layers

[Music] what's going on everyone welcome to another key shot quick tip in this video we're going to take a look at how to create fully transparent and controllable shadow layers without creating a shadow pass if you're looking to have more control over your image shadows during post-processing the easiest way to do that is by isolating the shadow as its own render transparent image to do this you'll first want to start with an empty scene you'll add a ground plane from the geometry menu or by hitting control or command g and then change the material type of that ground plane from ground to flat once that's been done locate the plane's color setting and change the color to black the next step is to open the texture sub tab and under the opacity input change the texture type to occlusion and then from there change the map mode to inverse color to blend the ground plane with its environment at this point the scene should essentially appear empty which is what we want for our ground plane model set i'll go ahead and i'll name this model set ground to make it easier to identify then i'll right click the panel and add a new model set that i'll name products make sure that when you're adding the new model set that both link materials and always visible are checked off and make sure that the ground plane is also toggled off so the new model set does not contain a duplicate ground plane with the new model set created lock the ground shadow model set make sure product is selected and drag and drop your model into the scene in this case i'm using a model i sourced from the cloud library so the model is stored under my models tab but you can also do the same with any model brought in from outside of keyshot i'm also going to quickly render my model set's thumbnails before continuing so i can easily identify the different model sets i'm now going to set up the last model set which will create an independent shadow layer i'll select the parts i'd like to include under product right-click the selected parts and select the create model set from selection option at the bottom of the pop-up menu this will allow me to create my last model set which i'll name product alpha and finally to make our shadow do this by simply adding an emissive white material to the models in the scene and then under the advanced accordion uncheck visible to camera by unchecking visible to camera we can no longer see the model but the shadow created by the model is still present and able to be rendered out independently note that if you do encounter artifacts in your scene where your now hidden model once was the easy solution is to simply increase the ray balances and your artifacts should disappear i can then render out the product and product alpha model sets to post-process in my program of choice and as you can see i now have two image layers that are both entirely transparent and can be placed in any scene or against any background without including elements of the ground plane or the model's reflection hopefully this quick tip helps add a little bit more flexibility to your post-processing workflows and as always if you're interested in more useful key shot content hit that subscribe button give us a like and don't forget to let us know your thoughts on this quick tip in the comments section below [Music] [Music] you

Channel: KeyShot

Views: 11,082

Keywords: keyshot, cg, 3d rendering, 3d animation, engineering, product design, marketing

Id: hc7QYoe1ifA

Length: 3min 19sec (199 seconds)

Published: Tue Jun 07 2022