The Research And Apply Of Lighting Simulation Technology On The Scanline Rendering Engine Of3DSMAX

At present,3DSMAX in the architectural design of the performance of verywidely used, but in the architectural design of the performance of image renderingtechnology related to the efficiency and quality assurance, so the technology researchof fast rendering of the very positive significance.In the software of3DSMAX Global illumination rendering and ScanlineRendering is the difference between with and without indirect light reflection andtransmission. Global illumination renderi ng can be calculated the direct light, alsocalculate indirect light, especially the calculation of indirect light is very complex, itneeds a computer to perform a lot of calculation, so that the rendering speed will bevery slow. In the Scanline Rendering only calculated the direct light does notcalculate indirect light, calculation of direct light than the indirect light is simple, aslong as it is calculated from the light source to the light path to the object by thesmooth surface, so the rendering speed very quickly. In order to use the3DSMAX fastrendering linear rendering algorithm, to realize the simulation effect diagram, themain work of this paper are as follows:(1) Firstly, lighting simulation technique is used to simulate the ScanlineRendering realistic lighting in the lighting effects, in order to study the keytechnology of Scanline Rendering engine lighting simulation in3dsmax, through theanalysis and research based on technology, image rendering real light physicalcharacteristics of rendering techniques and Scanline Render ing engine and lightingsystem, find the key technology of Scanline Rendering simulation is a simulation ofindirect light.(2) and then starting from the research of Scanline Render ing algorithm, want todirect light to simulate indirect light, you need as a brush like brightness and accuratecontrol of each interface to shape the real light effect. Based on the extensive studyand practice, this paper puts forward an ingenious lighting technology lighting, firstto form a uniform brightness by rendering algorithm of direct light to create largebody, then use form local lighting to increase the indirect light part of the details, inthe form of art image quality and rendering time to the larger optimization. Indirec tlight and in effect drawing practice of direct light generated by the simulationrealization. (3) in order to simplify the indirect light simulation operation, need to improvethe work efficiency by using fast light form. The indirect optical analog of plug-indesign, the indirect light in front of the study of simulation technology, using3DSMAX within the MAXScript program, using3DSMAX inherent standard lampalgorithm as the basis, through the definition of plug-in, plug-in code process to writeplug-in compiling, the main content including the floodlights create and light array tocreate two parts. Plug in contrast test, in addition to direct light need carefularrangement, simulating a large number of lighting and parameters of indirect lightpart of the plug-ins to fast light, can save a lot of time and energy.(4) the VRay renderer true light based on the physical characteristics of theobject can be obtained as compared to Scanline Render ing engine simulationtechnique has the advantage of light. In the architectural desi gn at present the mostcommonly used is VRay renderer renderer renderer, it is based on the physicalcharacteristics of the true light, rendering realistic lighting effects, but take too big.So in the same computer hardware and software, rendering the sam e premise scene,when compared to rendering effect of basically the same circumstances render time,and carried on the comparative analysis of test results, finally draw the conclusionthat linear emulation technology is much better than that in the render ing time VRayrenderer.The innovation of this paper:(1) the creative use of the light form of direct light group, and through therendering algorithm of direct light to simulate the field facing the indirect light mainlight generation;(2) to simulate the indirect light secondary direct light generated by light form,enriching the indirect light simulation of details in the process of;(3) indirect light design of Scanline Rendering engine simulation simulationplug-ins, in order to simplify the simulati on operation of the indirect light workload.