Lighting artists can take advantage of the progressive Interactive Photorealistic Rendering (IPR) feature in Houdini 10. This IPR workflow supports both raytracing and Physically Based Rendering (PBR), providing feedback whenever a scene changes. An update will be triggered when shader and light parameters are tweaked or when objects, cameras and lights are added, moved or even removed.
Artists can drag and drop materials into the IPR window and can control click to access shader parameters for any part of an image. Snap shots can be taken to compare with other iterations of a shot using features such as diffing.
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