Eevee: Add SSS support in probes

Previously the lighting of SSS material was not present in reflection probe or irradiance grid.

This does not compute the SSS correctly but at least output the corresponding irradiance power to the correct output.

1 files changed, 11 insertions, 7 deletions

diff --git a/source/blender/draw/engines/eevee/eevee_materials.c b/source/blender/draw/engines/eevee/eevee_materials.c
index 77d57716852..38f2aab4443 100644
--- a/source/blender/draw/engines/eevee/eevee_materials.c
+++ b/source/blender/draw/engines/eevee/eevee_materials.c
@@ -352,7 +352,7 @@ static char *eevee_get_volume_defines(int options)
  **/
 static void add_standard_uniforms(
         DRWShadingGroup *shgrp, EEVEE_ViewLayerData *sldata, EEVEE_Data *vedata,
-        int *ssr_id, float *refract_depth, bool use_ssrefraction, bool use_alpha_blend)
+        int *ssr_id, float *refract_depth, bool use_ssrefraction, bool use_alpha_blend, bool use_sss)
 {
 	if (ssr_id == NULL || !vedata->stl->g_data->valid_double_buffer) {
 		static int no_ssr = -1.0f;
@@ -409,6 +409,10 @@ static void add_standard_uniforms(
 		DRW_shgroup_uniform_vec2(shgrp, "volume_uv_ratio", (float *)sldata->volumetrics->volume_coord_scale, 1);
 		DRW_shgroup_uniform_vec3(shgrp, "volume_param", (float *)sldata->volumetrics->depth_param, 1);
 	}
+
+	if (use_sss) {
+		DRW_shgroup_uniform_bool(shgrp, "sssToggle", &sldata->probes->sss_toggle, 1);
+	}
 }
 
 static void create_default_shader(int options)
@@ -790,7 +794,7 @@ static struct DRWShadingGroup *EEVEE_default_shading_group_create(
 	}
 
 	DRWShadingGroup *shgrp = DRW_shgroup_create(e_data.default_lit[options], pass);
-	add_standard_uniforms(shgrp, sldata, vedata, &ssr_id, NULL, false, use_blend);
+	add_standard_uniforms(shgrp, sldata, vedata, &ssr_id, NULL, false, use_blend, false);
 
 	return shgrp;
 }
@@ -820,7 +824,7 @@ static struct DRWShadingGroup *EEVEE_default_shading_group_get(
 		vedata->psl->default_pass[options] = DRW_pass_create("Default Lit Pass", state);
 
 		DRWShadingGroup *shgrp = DRW_shgroup_create(e_data.default_lit[options], vedata->psl->default_pass[options]);
-		add_standard_uniforms(shgrp, sldata, vedata, &ssr_id, NULL, false, false);
+		add_standard_uniforms(shgrp, sldata, vedata, &ssr_id, NULL, false, false, false);
 	}
 
 	return DRW_shgroup_create(e_data.default_lit[options], vedata->psl->default_pass[options]);
@@ -1017,7 +1021,7 @@ static void material_opaque(
 			static int no_ssr = -1;
 			static int first_ssr = 1;
 			int *ssr_id = (stl->effects->use_ssr && !use_refract) ? &first_ssr : &no_ssr;
-			add_standard_uniforms(*shgrp, sldata, vedata, ssr_id, &ma->refract_depth, use_refract, false);
+			add_standard_uniforms(*shgrp, sldata, vedata, ssr_id, &ma->refract_depth, use_refract, false, use_sss);
 
 			if (use_sss) {
 				struct GPUTexture *sss_tex_profile = NULL;
@@ -1062,7 +1066,7 @@ static void material_opaque(
 			}
 
 			if (*shgrp_depth != NULL) {
-				add_standard_uniforms(*shgrp_depth, sldata, vedata, NULL, NULL, false, false);
+				add_standard_uniforms(*shgrp_depth, sldata, vedata, NULL, NULL, false, false, false);
 
 				if (ma->blend_method == MA_BM_CLIP) {
 					DRW_shgroup_uniform_float(*shgrp_depth, "alphaThreshold", &ma->alpha_threshold, 1);
@@ -1126,7 +1130,7 @@ static void material_transparent(
 		if (*shgrp) {
 			static int ssr_id = -1; /* TODO transparent SSR */
 			bool use_blend = (ma->blend_method & MA_BM_BLEND) != 0;
-			add_standard_uniforms(*shgrp, sldata, vedata, &ssr_id, &ma->refract_depth, use_refract, use_blend);
+			add_standard_uniforms(*shgrp, sldata, vedata, &ssr_id, &ma->refract_depth, use_refract, use_blend, false);
 		}
 		else {
 			/* Shader failed : pink color */
@@ -1378,7 +1382,7 @@ void EEVEE_materials_cache_populate(EEVEE_Data *vedata, EEVEE_ViewLayerData *sld
 
 									shgrp = DRW_shgroup_material_create(gpumat, psl->material_pass);
 									if (shgrp) {
-										add_standard_uniforms(shgrp, sldata, vedata, NULL, NULL, false, false);
+										add_standard_uniforms(shgrp, sldata, vedata, NULL, NULL, false, false, false);
 
 										BLI_ghash_insert(material_hash, ma, shgrp);