VR材质参数2（VR material parameter 2）.doc

VR材质参数2（VR material parameter 2） I. adjustment method of wood grain material: 1. texture adjustment of wood texture: A. uses an excessive color path map to add bump maps to make the grain feel like a bump, with a more textured texture, and the strength of the bump channel is usually 30% B. material ball high light intensity (specular level:) is usually 43%, high light area (glossiness) is between 28~40%. Matt paint surface, high light intensity can be low, high light area can be high. C. grain adjustment can be adjusted in U, V, W, and W in coordinates under the excessive color channel map. The D. self luminous adjustment is 5%, can adjust this value because of the light intensity. Light intensity is weak while light is weak. E. the size of the texture of the wood grain can be used in the object to adjust the size of the texture area with UVWmap, and the size of the material to determine the size of the coordinates can be appropriately exaggerated. F. in particular circumstances can also be added to ray tracing to reflect the gloss of paint. Usually at the strength of 5~8%. 2. texture selection of wood grain: A. texture of the wood, excessive color channels use the material, the picture should be clear texture. B. the color of the picture is uniform. The best of all is the absence of light. The texture of the C. image should be seamless. If it is not seamless, the texture changes of the picture (up, down, left and right) are not very good. 3., the use of wood grain, pay attention to: A. several commonly used wood luster is different, in the use of material, ball, material, we should pay attention to. Dark wood grain, such as black walnut, black oak and other lines of color difference, texture clear. Light colored wood such as beech, birch, Samut materials such as light color texture is not clear, with hidden lines, Two. Glass material adjustment method: 1. characteristics of glass material: A. glass is a transparent entity, and there are many ways to perform in 3D.