Width – Specifies the width for applicable light Shape types. Height – Specifies the height for applicable light Shape types. Some shapes (shown below) enable additional options for size.
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Shape – Specifies a shape (and its orientation) for the VRayIES light when Override shape is enabled. Sharp shadows are generated with the point type. The Shape parameter defines light shape for calculating shadow softness. Override shape – When enabled, the light profile within the. it behaves as a point light).įor illumination and shadows – The light shape is considered for the calculation of the illumination and shadows. The illumination is not affected by the light shape (i.e. No – The light shape is not considered for illumination and the light is going to generate sharp shadows.įor shadows – The light shape is considered only for the generation of soft shadows. Use light shape – Determines whether and how the shape of the light is taken into consideration during the calculation of shadows and illumination. Specular contribution – A multiplier for controlling the light's contribution to the specular reflection.Īffect atmospherics - When enabled, the light influences the atmospheric effects in the scene.Ītmospherics contribution - Determines the amount of influence the light has on the atmospheric effects. Turn this option off to disable shadow casting for the light.Īffect diffuse – Determines whether the light is affecting the diffuse properties of the materials.ĭiffuse contribution – A multiplier for controlling the light's contribution to the diffuse illumination.Īffect specular – Determines whether the light is affecting the specular part of the materials. If the Bias value is too extreme in either direction, shadows might not be rendered at all.Ĭast shadows – When enabled (the default), the light casts shadows. If Bias is too high, shadows can "detach" from an object.
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If the Bias value is too low, shadows can "leak" through places they shouldn't, produce moire patterns, or make out-of-place dark areas on meshes. Shadow bias – Moves the shadow toward or away from the shadow-casting object (or objects). This parameter is not available when the renderer is set to GPU. If you specify 0.0, the light is calculated for all surfaces.
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Larger values cut away more from the light lower values make the light range larger. This can be useful in scenes with many lights, where you want to limit the effect of the lights to some distance around them. Rotation X/Y/Z – Rotates the light shape in relation to the target.Ĭutoff – Specifies a threshold for the light intensity, below which the light is not computed. Show distribution – Shows the IES profile distribution as a mesh around the light source in the viewports. Enabled – Turns the VRayIES light on and off.Įnable viewport shading – When enabled, the effect of the VRayIES light is visible in the viewport.