然而这玩意画一个点光的阴影要用6个不同的视口矩阵画6遍不同朝向的shadowmap,明显是令人沮丧的操作,所以就有了今天讲的这玩意儿:Dual paraboloid shadow maps 什么是Dual paraboloid shadow maps? 朋友你见过世界地图吗?其实画点光SM的时候和画地图的时候遇到的难题是一样的:由于球面的高斯曲率为正,我们无法在完全...
This gives dual paraboloid map mipmaps the potential to be a better choice than cubemap mipmaps for the devices with less computational power. The effectiveness and the efficiency of the proposed approaches are demonstrated using a glossy reflection application and an omnidirectional soft shadow ...
used in the maps, instead of depth values. Theredo I want to show a picture presenting a paraboloid map used with dual paraboloid environment mapping. The purpose of this picture, however