How to solve jagged shadows

Lightscape was originally a rendering software on SGI workstation, and later transplanted to PC. 3. The version of11was merged into Kinetix Company of Autodesk, and the version 3.2 was released. Lightscape is a rendering software, which only includes four parts: material, lighting, rendering and camera animation. There is no modeling system, and its scene model comes from outside (such as 3DStudioViz/Max, etc.). As we all know, 3DStudioViz/Max has its own rendering system, so why use an external rendering system? People who have done rendering with 3DStudioViz/Max must have this experience. If the hard-made model is not carefully illuminated, it will be regarded as a virtual object no matter how it looks, and it will not achieve the real effect, especially the production of architectural renderings. Therefore, a large part of the production time of a work is spent on simulating the light and shadow effects in real life. Do you want to finish the lighting setting efficiently and with high quality? Watch Lightscape perform his magic. The traditional 3DStudioViz/Max only uses light to artificially draw the effect, and its material pays attention to many visual effects such as color, highlight and texture. Lightscape only considers the actual properties of lamps, such as fluorescent lamps, incandescent lamps and their power, and their materials only describe the real material properties, such as wood, plastic, metal, ceramics and so on. It uses the "radiance" algorithm, which is fundamentally different from scanning lines and ray tracing. Lightscape is unique in that it is closer to the physical transmission law of light than other renderers. Through it, you can place the lights according to the real-world method, and then get a light and shadow effect very similar to the real world. You don't need to simulate yourself. Leave all the work to the machine. New users, especially those who are good at 3D drawing, often mistakenly think that Lightscape is just another renderer. In fact, due to its unique algorithm, it has some specific requirements for material definition, lighting and even modeling. In order to get the best effect, it is very important to control the number of polygons and understand their structures for efficient results without artificial traces. In addition, the materials and lighting of the scene are also best defined in lightscape. For most Lightscapeproject, the workflow is the same, divided into five stages: 1. Input geometric model: The imported model is generated in CAD or 3D modeling system. Lightscape can import 3DS, DXF and DWG files, and can also import MAX files through corresponding plug-ins. 2. Preparation stage: Prepare the geometric data of light energy transmission. Ensure that the orientation of the model surface is correct (dxf files only). Define the surface material. Because Liftscape 0 is based on the physical properties of light, it is very important to accurately adjust the surface properties of the material, determine the reflectivity and refractive index of its physical properties (metal, masonry), and strive to make it close to the real world material properties. Set the special treatment parameters of the surface. These special parameters will affect the final appearance of the model and the accuracy and processing speed of light energy transfer. Defines the optical properties of the light source. This is the bright spot. Light sources include artificial light and natural light, and their physical parameters (color, model, power, direction, irradiation area, etc.). ) needs to be set correctly. Adjust the model. The file formed at this stage is .lp3. Define processing parameters: Once the material and lighting properties of the model are defined, you can start to calculate the direct and indirect lighting effects. At this stage, you need to initialize the geometric model for processing. Define processing parameters to control the speed and accuracy of the solution (good settings can generate more accurate solutions and better image quality, but it takes time and money. Through the wizard provided by the system, you can quickly set parameters. ) for radiosity solutions. This step is completed by the computer, which automatically calculates the distribution of light energy in the scene. The file generated at this stage is. Ls file. 4. Optimize the radiosity processing: In the radiosity solving process, you can interrupt the calculation at any time, adjust the unsatisfactory material or light source (you can't change the physical model), and then continue the calculation from the interruption point. 5. Output result: It is equivalent to rendering processing in 3D software, which can generate various types of files and provide various parameters to control ray tracing and anti-aliasing calculation. Single image: You can use ray tracer to add special reflections and enhance lighting effects. Animation sequence frames: You can create camera paths in lightscape. Excellent animation effect can be obtained by using OpenGL display directly. Virtual reality: the results of light energy transfer can be output as virtual reality files in various formats. Panoramic scanning: the results of light energy transfer can be output as panoramic scanning pictures with or without light tracing.