How to Combine FluidRay RT Light Channels to Quickly Adjust Lights

How to combine and adjust different light channels separately without redoing the rendering. This tutorial builds on top of the Light Channels Tutorial.

The final rendered image is just the sum of the contributions of every single light in the scene. By rendering every light to a different image, it’s possible to adjust the contribution of every single light before summing them up to obtain the final image. This video will cover:

  • Extracting light channel outputs from the renderer
  • Visualizing the light channels in the Render View
  • Changing the light channels scale and intensity in real-time
  • Using the Image Sum node to add together the different light channel outputs

For more tutorials, check out the Tutorial Page.

How to Use FluidRay RT Post Processing for Fast Render Tweaks

Introductory tutorial on how to setup a basic real-time image post-processing in FluidRay RT.

Rendering complex scenes can take some time. Post-processing in FluidRay RT lets you keep refining renders without starting over and see the changes in real-time. This video will cover:

  • Extracting the different output images from a rendering
  • Visualizing the output images in the Render View
  • Changing the color and intensity in real-time
  • Applying Reinhard Tone Mapping to adjust appearance
  • Automatically saving the output images at specific intervals

For more tutorials, check out the Tutorial Page.

How to Add Multiple Light Outputs to FluidRay RT for Faster Post Processing

FluidRay RT tutorial showing how to generate separate outputs from multiple lights at the same time.

Sometimes, for example in interior renderings, it’s useful to render the same scene with different lighting configurations.
In FluidRay RT it’s possible to generate a different image for each light in the scene at the same time, and then mix the images later. This allows to render the scene only once, and then in real-time tweak colors and intensity of each different light and not having to wait to re-render the scene. This video will cover:

  • Make each light generate a different output image
  • Visualize the different outputs in the render view

For more tutorials, check out the Tutorial Page.