Differences

This shows you the differences between two versions of the page.

--- 0.8.4:volumerendering [2022/06/16 13:38] – [Filtering and MipMaps] admin
+++ 0.8.4:volumerendering [2022/06/16 13:46] – [Lighting] admin
@@ Line 358: / Line 358: @@
 |Gamut|Texture used for mapping the 3D value during Raytracing|
 |GamutMode|Defines when and how the value-color mapping happens. Here different modes are available: GamutNone, GamutByValue, GamutByValueMultiply, GamutBySum, GamutBySumMultiply|
-|GamutFactor|A factor applied to the absolute 3D value before mapping onto the gamut texture (default value is 1.0)|
+|GamutFactor|A factor applied to the absolute 3D value before mapping onto the gamut texture (default value is 1.0). Use this value for shifting inside of the gamut texture. |
+|GamutIntensity|Defines how intense coloring is.|
+|GamutAlphaIntensity|Defines how intense alpha channel coloring is.|
 {{youtube>cmgTMz4PDAc?large}}
@@ Line 378: / Line 380: @@
 Since v0.8.4.2314 lighting and iso surface detection is also supported.
-Iso surface detection tries to evaluate a surface during raytracing. Because this method always depends on the data we have you can control this detection by **IsoSurfaceLimit**.
+To activate lighting for a volumetric mesh, please use:
+<file pascal>
+GorillaVolumetricMesh1.UseLighting := true;
+</file>
+After it was activated, the implemented functions try to detect a surface from the given 3D data.
+This is called IsoSurface detection.
+Because this method always depends on the data, you can control this detection by **IsoSurfaceLimit** property.
+{{:0.8.4:vr_isosurf.jpg?nolink&600|}}
+<file pascal>
+GorillaVolumetricMesh1.IsoSurfaceLimit := 0.125;
+</file>
+When detection of a volume surface was successful, we are able to apply lighting with all available shading models to it.
-When detection of the volume surface was successful, we are able to apply lighting with all available shading models to it.
 The volumetric mesh therefore allows to choose between: Lambert, Phong, Blinn-Phong and PBR.
@@ Line 386: / Line 403: @@
 <file pascal>
-GorillaVolumetricMesh1.IsoSurfaceLimit := 0.125;
 GorillaVolumetricMesh1.ShadingModel := TGorillaShadingModel.smPBR;
 </file>
-__Notice:__ For PBR (physically based rendering) it does not need any PBR texture, instead it will use the //RoughnessBias// and //MetallicBias// properties.
+__Notice:__ For PBR (physically based rendering) it does not need any PBR texture, instead it will use the //AOBias//, //RoughnessBias// and //MetallicBias// properties.
+{{youtube>zMfiPLPDcq0?large}}
 ===== Filtering and MipMaps =====