EEVEE: Ambient Occlusion: Add sample parameter support for the AO node

The actual sample count is rounded up to a multiple of 4 because we
sample 4 horizons directions.

Changing this setting forces the shader to recompile (because using a
GPU_constant).

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_ambient_occlusion.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_ambient_occlusion.glsl
index 0231aeca04b..edf2c93c9a0 100644
--- a/source/blender/gpu/shaders/material/gpu_shader_material_ambient_occlusion.glsl
+++ b/source/blender/gpu/shaders/material/gpu_shader_material_ambient_occlusion.glsl
@@ -3,12 +3,13 @@ void node_ambient_occlusion(vec4 color,
                             float dist,
                             vec3 normal,
                             const float inverted,
+                            const float sample_count,
                             out vec4 result_color,
                             out float result_ao)
 {
   vec3 bent_normal;
   vec4 rand = texelfetch_noise_tex(gl_FragCoord.xy);
-  OcclusionData data = occlusion_search(viewPosition, maxzBuffer, dist, inverted, 8.0);
+  OcclusionData data = occlusion_search(viewPosition, maxzBuffer, dist, inverted, sample_count);
 
   vec3 V = cameraVec(worldPosition);
   vec3 N = normalize(normal);