Hi all,
I'm wondering if anyone has any practical experience they'd be willing to share on some of the more exotic shadow map projection schemes for directional lights?
I'm trying to wring that last bit of resolution from my shadow maps. I've encoded the maps as ESMs, hidden most the artifacts and tuned the filtering to best match the scene. I've still got a little too much motion and not quite enough accuracy, especially in the shadows closer to the camera. Shadows a little further back look lovely.
CSMs are out of the question in this instance. It's a directional light, and currently uses an orthogonal projection. At first guess, I'm thinking that approximating the directional light as a distant point light might be the best bet. Has anyone seen the fancier projections do better than this for close up detail in a directional light?
Bit of a broad question, I know. Any useful input much appreciated though!
I'm wondering if anyone has any practical experience they'd be willing to share on some of the more exotic shadow map projection schemes for directional lights?
I'm trying to wring that last bit of resolution from my shadow maps. I've encoded the maps as ESMs, hidden most the artifacts and tuned the filtering to best match the scene. I've still got a little too much motion and not quite enough accuracy, especially in the shadows closer to the camera. Shadows a little further back look lovely.
CSMs are out of the question in this instance. It's a directional light, and currently uses an orthogonal projection. At first guess, I'm thinking that approximating the directional light as a distant point light might be the best bet. Has anyone seen the fancier projections do better than this for close up detail in a directional light?
Bit of a broad question, I know. Any useful input much appreciated though!