So that you can compare the results, the image at the bottom was rendered with the following settings: global illumination = 1 diffuse depth = 8. Dark images result from small values for Diffuse depth (see Advanced settings palette).Įxamples of rendered images with different settings for global illumination (= gamma value):Įxamples of rendered images (1 - 6) with different settings for global illumination (= gamma value) and a constant setting for diffuse depth = 3. Using this value, you can brighten up dark images or darken overexposed images. This setting is directly affected by the Samples accuracy setting in the Irradiance cache area (see Advanced settings palette).Ĭontrols the gamma value and thus the brightness of the entire scene in the resulting image. Optimizes the calculation for exterior views (with natural lighting) or interior views (with artificial lighting and difficult lighting conditions). If you select this option, Allplan will include the virtual ground plane in the rendered image. Specifies whether the virtual ground plane is displayed in the rendered image. Only if you have defined a virtual ground plane using Surroundings. This is necessary if you want to place the rendered, transparent image on top of a different background (alpha blending). In other words, the program cuts out a background color or bitmap when calculating the image. When you select this option, the program masks the background of the image with an alpha channel. Using the Options palette, you can achieve visual effects and include surface elements in the rendered images. The image on the left does not use ambient occlusion, whereas the image on the right uses this technique. The following illustrations show the effects of ambient occlusion.
When you select this option, you can define additional AO parameters in the Advanced settings palette.Įxample of rendered image without (left) and with (right) the Ambient occlusion option: You can use this technique both for interior scenes and exterior scenes.
Another advantage of this technique is that it emphasizes details by applying shadows to edges and corners.įor example, you can use ambient occlusion to simulate lighting conditions when the sky is cloudy and there is no direct sunlight. Ambient occlusion produces realistic shadows in a relatively short period of time. If the resulting image is distorted, you can compensate for this by increasing the quality (see Quality - Default) and optimizing the image for interior views (see Optimize for).Īmbient occlusion is a shading technique you can use together with global illumination. However, calculation may take a little longer. If shadows are very important for your scene, you can also render interior views with this method. The settings are equivalent to the GI method calculates shadows more precisely. Rendering result without light mapping (on the left) and with medium Lightmaps quality (on the right)