Eevee: Modify the raycast function to be more flexible.

Make quality a parameter, and modify the ray end to be premultiplied so that the raytrace is done on a range.

This is in order to add contact shadows.

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl b/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
index e23effb854c..5f4a4c9f89f 100644
--- a/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
@@ -25,6 +25,9 @@ in vec3 worldNormal;
 in vec3 viewNormal;
 #endif
 
+uniform float maxRoughness;
+uniform int rayCount;
+
 /* ----------- default -----------  */
 
 vec3 eevee_surface_lit(vec3 N, vec3 albedo, vec3 f0, float roughness, float ao, int ssr_id, out vec3 ssr_spec)