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July 16, by Alex Quickly creating 3D-models and doing sketchy renderings is clearly the strength of SketchUp. One feature that is missing in SketchUp, though, is photo-realistic rendering. Look at this post for an overview , I suggest you take a look at the freeware Kerkythea.
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July 16, by Alex Quickly creating 3D-models and doing sketchy renderings is clearly the strength of SketchUp. One feature that is missing in SketchUp, though, is photo-realistic rendering. Look at this post for an overview , I suggest you take a look at the freeware Kerkythea. For completeness, it should be mentioned that there are also the free renderers with export plugins Indigo and POVRAY , but I currently prefer Kerkythea due to its great user interface, fast and great results as well as multiprocessor support.
By the way: Kerkythea installs as a separate program and SketchUp models are converted to its XML-based scene description language with a very seamless exporter plug-in a Ruby-plugin. The rendering engine then provides various rendering methods such as ray tracing, photon mapping, path tracing, BiPT, MLT and also presets for clay and ambient occlusion renderings.
It includes a full-featured material editor and additional high-quality materials can be downloaded from the web. Download the SketchUp exporter plugin and the SketchUp light components here. Download Kerkythea sample materials and models trees etc. Install Kerkythea. Close SketchUp.
Make sure that you install the plugin files so that the main Ruby file su2kt. Use The SketchUp exporter download includes a sample file that is very illustrative. It will guide you through scene setup, light creation, modification, animation setup, export and rendering. More tutorials are available here and in their wiki. A very basic workflow goes like this: Create your SketchUp model. Apply materials and position textures. On export, these will be used to create cameras.
Go to the plugins menu and export the scene. This will create an XML-file and a sub-folder with all the textures. The exporter gives you options to export the selected object only, export the lights or export for a clay render no textures. Choose as you please. You can then directly open the model in Kerkythea by clicking OK one more time.
In any case you will be able to open Kerkythea and load the file. Select a render preset and watch the magic happen. If you have multiple processors in your machine, make sure you use them all as this will speed up rendering.
These are some rendering types that can be done with this software: Global Illumination: Ambient Occlusion: Set the sky color to white or grey, disable the sun and see what happens.
Always looks nice. Image-based lighting HDRI: For far more impressive renderings, check out their gallery. SU2KT sets sun power always to 3. Make sure you clean these up switch all visible sides to front in SketchUp before you export.
These can simply be different colors, of course. As with any renderer, a large number of reflective and refractive materials glass, metal, etc. Also, depth of field increases rendering time significantly. If you need to have blurred backgrounds, render a depth map in Kerkythea one of the last settings and add DOF in Photoshop. Keep light emitting objects simple i.
The higher polygon count of more complex objects will slow down any render. One great tip for Kerkythea materials that I found on the forums: To create a good-looking material, apply one of the basic plastic materials with the desired reflectivity and then apply your texture to the diffuse channel.
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