This is useful when you only need the effect in a certain direction.ĭirection Offset: X-Axis 10.0, Y-Axis 10.0, Z-Axis 10.0Ģ. The following example showcases how ray concentration changes while Ray Directionality goes from 100% to the default 0%.ĭirection offsets can also be used for the X, Y, and Z axes separately.

Increasing this value causes the rays to focus on the occluded areas only. Low values of this parameter result in uniform ray distribution around the geometry normals. Lower values render faster but look noisier. Increasing the number of Samples will provide a cleaner render (less noise) in a shorter time at the cost of other effects such as GI and anti-aliasing. Usually, there is no need to change the default value. This makes the effect of occlusion stronger and more apparent. In the following example, a texture map is being used as occlusion color, with the help of Color Spread the occluded color can replace the unoccluded one by increasing the amount from 0% to 100%. The 'Outside + Inside' mode calculates both other modes at once and merges them.Ĭalculation mode: Outside, Inside, Both (Outside & Inside).The 'Inside' mode will consider occlusion looking from the inside of the object (back-facing surface).This is similar to illuminating an object with environmental lighting. The 'Outside' mode is enabled by default and it creates occlusion by looking at the object from its outside (front-facing surface).There are three different methods of controlling how occlusion is calculated: Low values provide contact shadowing and amplify possible cavities on the mesh by also being faster to render, while higher values cover larger surfaces/areas but also render slower. The following examples showcase how occlusion is applied depending on the Max Distance. The third input controls the distance parameter of Corona AO through the use of a texture or a bitmap, which can additionally be controlled using the Max Distance parameter. There are three inputs for Corona AO, the first two control the occluded and unoccluded color which can also be controlled with a texture. It can also be used as a mask to blend two or more materials - in the example below, paint worn metal: The Corona AO shader can be used for some advanced effects.

To add dirt or 'worn off' effect to your material, simply use Corona AO shader for this: How to enable the ambient occlusion effect for a specific material? (dirt, 'worn off' effect) Ambient occlusion can be however used to create advanced materials, such as rusted metal, worn wood, scratched paint, etc, or to provide 'artistic' control over the overall scene's appearance.ġ. Corona Renderer will take care of darkening concave areas without any special tweaks, as that would be also expected in real life. For maximum realism and physical accuracy, we do not recommend using ambient occlusion to enhance shading.

Corona c4d download torrent