This lesson gives a sample lesson plan for involving the V-Ray Render Elements module into a lecture.
- You may begin with a discussion of the concept of multi-pass rendering and compositing and the benefits it offers
- Splitting the image into its components doesn’t affect the render times
- Composing the image back together allows us to color correct each element separately which in turns allows us much greater control over the final look
- Images need to be saved in linear color space (open EXR file) in order for the workflow to work
- Open EXR file format can keep all render elements in layers in a single file. Some compositing tools like NUKE can open and extract each layer.
- Custom render elements can be created for specific tasks
- MultiMatteElement allows us to create selection masks for certain objects or for specific materials
- VRayExtraTex render element can render the entire scene with a texture applied to it. This can be used to create specific render passes based on the pipe line in the studio. When combined with a VRayDirt map it creates an Ambient Occlusion pass
- VRayZDepth renders a depth map of the scene, taken from the camera. It can be used to apply lens blur in Photoshop effectively faking Depth of Field. This approach is used when render times need to be kept at minimum
- In this cycle, you can use the provided scene and handouts to demonstrate how to use the render elements functionality of V-Ray
- In this cycle, you are going to let your students experiment with the provided scene. You may want to give them the provided handout to use as a guideline