This lesson gives a basic sample lesson plan for introducing the V-Ray Dome Light.
- If this is the first lesson involving lights you may start with some basic concepts like. Light decay, color temperature and intensity. These can be copied from the Lecture on V-Ray Light
- Start with a basic explanation of the concept of Image Based Lighting and when and why it used. You may show some images of different environments here.
- Spend some time discussing high dynamic range images and how they are created:
- Images are taken as a series of exposures that capture different lighting levels of the environment.
- The camera is on a stationary tripod so images can be properly combined
- Discuss the most common issues that arise when trying to illuminate a scene using a high dynamic range image.
- Global Illumination is the only way to gather the light from the environment. This leads to noise or splotches and it makes it impossible to create sharp shadows.
- Render times are usually very high if we need to render an image with reasonable quality
- Rendering animations becomes really hard due to GI flickering
- Next you can move on to how the V-Ray Dome Light fixes these issues:
- V-Ray analyses the texture, finds the bright spots and shines direct light with the correct color and intensity from the correct areas
- This means IBL can be generated without using GI
- Even when we have GI enabled the calculations are much faster because we have real direct light sources in the scene
- Next discuss the settings of the V-Ray Dome Light using the provided PowerPoint presentation
- The VRayHDRI texture node is another topic you may discuss as it works together with the V-Ray Dome Light
- In this cycle, you are going to demonstrate the options of the V-Ray Dome Light. You can use either the provided scene and handout or create your own.
- 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.