Tham khảo tài liệu '2d artwork and 3d modeling for game artists- p10', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 424 1O. Organic Texture Tutorials with Photoshop 13. To the top layer that contains the cell pattern apply a downward inner bevel. The bevel should have full depth to enhance the dark features of the cracks see Figure . Figure Add a downward inner bevel to finish the texture. That s it You can adjust the levels to suit your needs from here just remember to flatten the image. The only down side to this texture is that it s not quite seamlessly tileable you need to manually offset it with Filter Other Offset and take your time getting rid of the obnoxious seams with the Clone Stamp tool. Figure shows this texture in action. Also you might try using the Alpha channel you created as a displacement map in conjunction with the Lighting Effects filter to raise or lower the individual cells of the texture. Figure Not an attractive scenario. Sun block 200 anyone ease purchase PDF Split-Merge on to remove this watermark. Water Here s a quickie with guaranteed results using a filter I ve yet to demonstrate in this book. The uniqueness of this texture is not just in the filtering but in the mesh onto which it is placed. In almost every 3D game on the market there exists the level-design capability to activate some type of vertex displacement mesh. That is you should be able to dictate certain areas of your terrain to be in constant random wave-like motion within a fixed range. In the case of this example which could easily apply to lava boiling acid and the like a water texture is applied to an area of geometr y within a level whose vertices slowly shift back and forth slightly expanding and contracting the texture to make the area appear liquid. Torque Unreal and Quake to mention a few are engines quite capable of this physics technique. Pretty much any organic-looking texture will work on these objects. 1. Start a new 512x512-pixel RGB color image. 2. Fill the background layer with the Clouds filter using medium and light sky blue .
