With these settings the VRayShadow acts like a Raytraced Shadow. Transparent Shadows: On, Area Shadows: On, Subdivisions: 24 Of course that also leads to higher render time, as V-Ray calculates more samples, You can still notice some grain in the shadow. Increasing the Subdivisions leads to better shadow quality. You can notice how the size values has influenced the final result of it.Įxample: VRayShadow as Raytraced and Area Types / Subdivisions vs Quality / Bias Now the shadow is looking very different compared to the previous one. See how the shadow is strong according to the U axis and is much softer to the V one. In this case VRayShadow takes under consideration all the U, V, W size values. For more information, see VRay Shadow as Raytraced and Area Types/ Subdivisions vs Quality Bias example below. Note that this parameter is available for changing only when Use local subdivs is enabled in the Global DMC Settings. More subdivs mean less noise, but render slower. Sub divs – Controls the number of samples V-Ray takes to compute area shadows at a given point. W size – Specifies the W size of the light source V-Ray takes into account when computing area shadows (this parameter has no effect when Sphere light source is selected). V size – Specifies the V size of the light source V-Ray takes into account when computing area shadows (this parameter has no effect when Sphere light source is selected). U size – Specifies the U size of the light source V-Ray takes into account when computing area shadows (if Sphere light source is selected, U size corresponds to the sphere's radius). Sphere – V-Ray computes the shadows as if they were cast by a light source with the form of a sphere. Type – Determines the way in which the area shadows are calculated:īox – V-Ray computes the shadows as if they were cast by a light source with the form of a box. This may be useful to prevent "surface acne" (black spots on the surface because of incorrect self-shadowing).Īrea shadow – Turns area shadows on and off. For more information, see The Changing Shadow Colors example below.īias – V-Ray can compute the shadows at a point that is slightly displaced towards the light from the actual surface being shaded. When disabled, the shadows take into account the Object Shadows parameters of the light, but shadows from transparent objects are monochromatic (shades of gray only). When enabled, V-Ray calculates shadows regardless of the light's Object Shadows settings (Color, Density, Map, etc.), however the color of shadows from transparent objects is correct. Transparent shadows – Determines the behavior of the shadows when there are transparent objects in the scene.