X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;ds=sidebyside;f=shaders%2Fscene_standard.h;h=232e67693bfbc4c0634cd6e9c508ba2dc411587f;hb=f3a2490079baf440238b78e54f4476649eddbda2;hp=ccd31a6a52749e7530ec63b223caa860d3d29c4a;hpb=aa4c26eae2208872824e0eb5b71bc05c16d43242;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/scene_standard.h b/shaders/scene_standard.h
index ccd31a6..232e676 100644
--- a/shaders/scene_standard.h
+++ b/shaders/scene_standard.h
@@ -107,6 +107,13 @@ static struct vg_shader _shader_scene_standard = {
 "   return texture( g_world_depth, depth_coord ).r;\n"
 "}\n"
 "\n"
+"float world_water_depth( vec3 pos )\n"
+"{\n"
+"   vec2 depth_coord = (pos.xz - g_depth_bounds.xy) * g_depth_bounds.zw; \n"
+"   float ref_depth = g_water_plane.y*g_water_plane.w;\n"
+"   return texture( g_world_depth, depth_coord ).g - ref_depth;\n"
+"}\n"
+"\n"
 "float shadow_sample( vec3 vdir )\n"
 "{\n"
 "   vec3 sample_pos = aWorldCo + vdir;\n"