diff options
Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/raytrace_lib.glsl')
| -rw-r--r-- | source/blender/draw/engines/eevee/shaders/raytrace_lib.glsl | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/raytrace_lib.glsl b/source/blender/draw/engines/eevee/shaders/raytrace_lib.glsl index cad1346609a..db3497bd043 100644 --- a/source/blender/draw/engines/eevee/shaders/raytrace_lib.glsl +++ b/source/blender/draw/engines/eevee/shaders/raytrace_lib.glsl @@ -105,7 +105,9 @@ void prepare_raycast(vec3 ray_origin, /* If the line is degenerate, make it cover at least one pixel * to not have to handle zero-pixel extent as a special case later */ - ss_step.xy += vec2((dot(ss_step.xy, ss_step.xy) < 0.00001) ? 0.001 : 0.0); + if (dot(ss_step.xy, ss_step.xy) < 0.00001) { + ss_step.xy = vec2(0.0, 0.0001); + } /* Make ss_step cover one pixel. */ ss_step /= max(abs(ss_step.x), abs(ss_step.y)); @@ -173,7 +175,8 @@ vec3 raycast(int index, float iter; for (iter = 1.0; !hit && (ray_time < max_time) && (iter < MAX_STEP); iter++) { /* Minimum stride of 2 because we are using half res minmax zbuffer. */ - float stride = max(1.0, iter * trace_quality) * 2.0; + /* WORKAROUND: Factor is a bit higher than 2 to avoid some banding. To investigate. */ + float stride = max(1.0, iter * trace_quality) * (2.0 + 0.05); float lod = log2(stride * 0.5 * trace_quality) * lod_fac; ray_time += stride; @@ -234,9 +237,10 @@ vec3 raycast(int index, #endif } - if (discard_backface) { - /* Discard backface hits */ - hit = hit && (prev_delta > 0.0); + /* Discard backface hits. Only do this if the ray traveled enough to avoid loosing intricate + * contact reflections. This is only used for SSReflections. */ + if (discard_backface && prev_delta < 0.0 && curr_time > 4.1) { + hit = false; } /* Reject hit if background. */ |