V-Ray for Rhino Manual - Rum

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Color Mapping The Function of Color Mapping Color mapping is used to adjust how color are actually displayed for a given image. When V-Ray determines a color value for a given pixel this value is then interpreted based on the type of mappings in use. This is very useful for minimizing the amount of an image which is out of the range of what can be displayed on a monitor. Types of Color Mapping Open Color Mapping under Options, V-Ray default is set to Linear Multiply option. Linear Multiply simply means that the color will not be changed from the generated value to the displayed value. Exponential is using color intensity to control brightness and prevent wash out situation, but objects' color will become light, like image on the right. HSV Exponential and Exponential is very similar, but will keep the tune and intensity of the color, like image on the bottom left. Intensity Exponential can maintain the RGB ratio, and will only affect the color intensity, light image on the bottom right. 88 V-Ray for Rhino
Adaptive Subdivisions control The default setting for Adaptive Subdivision can produce a good result. See image below on the left. These thin lines rendered with default Adaptive Subdivisions and had some broken line in the back. Adaptive Subdivisions Sampler Open Image Sampler under Options, V-Ray's default uses Adaptive Subdivisions as its method of calculating antialiasing. Default Min Rate is -1, Max Rate is 2. Same as previous discussion about Min Rate and Mat Rate, use proper value to create accurate rendering. For this example, set the Min rate directly to 0 will fix those broken lines, as in the image on the right. Fix Rate Sampler Fixed Rate Sampler works in much the same way as the Adaptive Subdivisions sampler does, but it does not have the compacity to use multiple levels of subdivisions. Because of this, the Fixed Rate sampler is generally quite slow, although it does produce very predictable results. Adaptive QMC Sampler Adaptive QMC Sampler is a very good sampler and pairs very well with using QMC for primary bounces. Similar to QMC the Adaprive QMC Sampler is best used for scenes with lots of small details. Although Adaptive QMC is not always the fastest method for calculating antialiasing, it typically produces quality results. Proper Adjustment of the Image Sampler has a direct impact on the speed and quality of the final image. For faster previews you can decrease the Image Sampler quality. For final renders it is very important to have a correct setting because a poor setting can produce a poor quality image even if the lighting calculations are very precise. In all cases higher subdivisions will yield a better quality image V-Ray for Rhino 89
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A R E N D E R I N G P L U G I N F O
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Transparency Mapping...............
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Installing V-Ray for Rhino 1. Make
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Before you start rendering with V-R
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Render Options for V-Ray for Rhino
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The image is in blue tone is becaus
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Material Editor in V-Ray for Rhino
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How to duplicate a material: Under
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Material Usage 01. Open Cups-GI.3dm
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Add Lights We didn't add any light
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Here are some images with different
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Impacts on reflective objects due t
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Material: Reflection Layer This sec
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Fresnel Reflections Fresnel Reflect
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Fresnel IOR Reflection Glossiness C
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3. Click on the Update Preview agai
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Adjusting Refractions with Index of
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Image below shows the influence of
Page 38 and 39: Check the Translucent box under Tra
Page 40 and 41: Adjust the Intensity Default set th
Page 42 and 43: Please note that if any type of map
Page 44 and 45: 03. Click on the “m” to the rig
Page 46 and 47: Projection types and adjustment The
Page 48 and 49: Image on the left is result of usin
Page 50 and 51: Adjusting Displacement Depending on
Page 52 and 53: 1. Click on the cup and open its Ma
Page 54 and 55: Other Uses for transparency mapping
Page 56 and 57: V-Ray Two-Sided Material The V-Ray
Page 58 and 59: Environment Lighting Lighting plays
Page 60 and 61: Techniques for adjusting illuminati
Page 62 and 63: To compare, below are three images
Page 64 and 65: Environment light source for semi-o
Page 66 and 67: Choosing different Render Engines I
Page 68 and 69: Image on the left is showing the la
Page 70 and 71: Primary Engine: Quasi Monte-Carlo Q
Page 72 and 73: Another important option with Light
Page 74 and 75: Light and Shadow The quality of Sha
Page 76 and 77: Depth of Field What's Depth of Fiel
Page 78 and 79: Below are some images showing more
Page 80 and 81: Using Aperture When using aperture
Page 82 and 83: Sun and Sky The V-Ray Sun and Sky a
Page 84 and 85: Changin the Sun’s Appearance with
Page 86 and 87: Caustics What are Caustics? Caustic
Page 90 and 91: Mesh Settings In order for geometry
Page 92 and 93: V-Ray Frame Buffer Render image win
Page 94 and 95: Starting the DR Spawner Once the DR
Page 96 and 97: Chocolate Crystal Eggshell Emmisive
Page 98 and 99: Metal - Car Paint_Red Metal - Chrom
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V-Ray for Rhino Manual - Rum

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