Fix T65761 Eevee: SSRefraction not working on first sample

There is no reason to disable the refraction on the first sample like SSR
does.

This was caussing issues when rendering.

4 files changed, 6 insertions, 3 deletions

diff --git a/source/blender/draw/engines/eevee/eevee_lightprobes.c b/source/blender/draw/engines/eevee/eevee_lightprobes.c
index ddc5eae768e..5341661735f 100644
--- a/source/blender/draw/engines/eevee/eevee_lightprobes.c
+++ b/source/blender/draw/engines/eevee/eevee_lightprobes.c
@@ -212,6 +212,7 @@ void EEVEE_lightprobes_init(EEVEE_ViewLayerData *sldata, EEVEE_Data *vedata)
 
   common_data->spec_toggle = true;
   common_data->ssr_toggle = true;
+  common_data->ssrefract_toggle = true;
   common_data->sss_toggle = true;
 
   /* Placeholder planar pool: used when rendering planar reflections (avoid dependency loop). */
@@ -1264,6 +1265,7 @@ void EEVEE_lightprobes_refresh_planar(EEVEE_ViewLayerData *sldata, EEVEE_Data *v
   common_data->prb_num_planar = 0;
   /* Turn off ssr to avoid black specular */
   common_data->ssr_toggle = false;
+  common_data->ssrefract_toggle = false;
   common_data->sss_toggle = false;
 
   common_data->ray_type = EEVEE_RAY_GLOSSY;
@@ -1281,6 +1283,7 @@ void EEVEE_lightprobes_refresh_planar(EEVEE_ViewLayerData *sldata, EEVEE_Data *v
   /* Restore */
   common_data->prb_num_planar = pinfo->num_planar;
   common_data->ssr_toggle = true;
+  common_data->ssrefract_toggle = true;
   common_data->sss_toggle = true;
 
   /* Prefilter for SSR */
diff --git a/source/blender/draw/engines/eevee/eevee_private.h b/source/blender/draw/engines/eevee/eevee_private.h
index 152b8fa5d0a..93a4e43d3af 100644
--- a/source/blender/draw/engines/eevee/eevee_private.h
+++ b/source/blender/draw/engines/eevee/eevee_private.h
@@ -671,6 +671,7 @@ typedef struct EEVEE_CommonUniformBuffer {
   float ssr_firefly_fac;                              /* float */
   float ssr_brdf_bias;                                /* float */
   int ssr_toggle;                                     /* bool */
+  int ssrefract_toggle;                               /* bool */
   /* SubSurface Scattering */
   float sss_jitter_threshold; /* float */
   int sss_toggle;             /* bool */
@@ -690,8 +691,6 @@ typedef struct EEVEE_CommonUniformBuffer {
   int hiz_mip_offset; /* int */
   int ray_type;       /* int */
   float ray_depth;    /* float */
-
-  float pad_common_ubo;
 } EEVEE_CommonUniformBuffer;
 
 BLI_STATIC_ASSERT_ALIGN(EEVEE_CommonUniformBuffer, 16)
diff --git a/source/blender/draw/engines/eevee/shaders/common_uniforms_lib.glsl b/source/blender/draw/engines/eevee/shaders/common_uniforms_lib.glsl
index da0778b8a10..c7ae2417904 100644
--- a/source/blender/draw/engines/eevee/shaders/common_uniforms_lib.glsl
+++ b/source/blender/draw/engines/eevee/shaders/common_uniforms_lib.glsl
@@ -23,6 +23,7 @@ layout(std140) uniform common_block
   float ssrFireflyFac;
   float ssrBrdfBias;
   bool ssrToggle;
+  bool ssrefractToggle;
   /* SubSurface Scattering */
   float sssJitterThreshold;
   bool sssToggle;
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 814cb13de0a..53f1517505c 100644
--- a/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
@@ -344,7 +344,7 @@ void CLOSURE_NAME(vec3 N
 /*   Screen Space Refraction    */
 /* ---------------------------- */
 #    ifdef USE_REFRACTION
-  if (ssrToggle && roughness < ssrMaxRoughness + 0.2) {
+  if (ssrefractToggle && roughness < ssrMaxRoughness + 0.2) {
     /* Find approximated position of the 2nd refraction event. */
     vec3 refr_vpos = (refractionDepth > 0.0) ? transform_point(ViewMatrix, refr_pos) :
                                                viewPosition;