I try to implement the shadow effect right now. But I have encountered one big problem which nearly made me depressed. The problem can be described below: I study the technique document and code from OpoenGL SuperBile Third Edition--Shadow Map. I creat a scene which is made up of geometric models(some torus which are red) and DEM terrain. When I render the terrain with color which depends on the height, I get the right result-- the shadow on the torus and terrain. But when I use a terrain texture, the shadow is lost, and when I change the texture matrix, I find that this can not solve this problem. Why? [Edited by - myleo on April 10, 2006 7:14:30 PM]

when I google the demos of PSM, LiSPSM, TSM and CSM, I cannot find a demo using more than one texture ( include the depth map texture), all of them render the models with color.
Is there some links with better demos?