Remove unimplemented `Environment.ambient_light_occlusion_color` property

This property was intended to provide a way to have SSAO or VoxelGI
ambient occlusion with a color other than black. However, it was
dropped during the Vulkan renderer development due to the performance
overhead it caused when the feature wasn't used.

13 files changed, 8 insertions, 51 deletions

diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
index 2377702738..6a3b9726da 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
@@ -753,12 +753,6 @@ void RenderForwardClustered::_setup_environment(const RenderDataRD *p_render_dat
 		scene_state.ubo.ssao_ao_affect = environment_get_ssao_ao_affect(p_render_data->environment);
 		scene_state.ubo.ssao_light_affect = environment_get_ssao_light_affect(p_render_data->environment);
 
-		Color ao_color = environment_get_ao_color(p_render_data->environment).to_linear();
-		scene_state.ubo.ao_color[0] = ao_color.r;
-		scene_state.ubo.ao_color[1] = ao_color.g;
-		scene_state.ubo.ao_color[2] = ao_color.b;
-		scene_state.ubo.ao_color[3] = ao_color.a;
-
 		scene_state.ubo.fog_enabled = environment_is_fog_enabled(p_render_data->environment);
 		scene_state.ubo.fog_density = environment_get_fog_density(p_render_data->environment);
 		scene_state.ubo.fog_height = environment_get_fog_height(p_render_data->environment);
diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
index 676f633d33..ff3d2fc6cb 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
@@ -257,8 +257,6 @@ class RenderForwardClustered : public RendererSceneRenderRD {
 			float roughness_limiter_limit;
 			uint32_t roughness_limiter_pad[2];
 
-			float ao_color[4];
-
 			float sdf_to_bounds[16];
 
 			int32_t sdf_offset[3];
diff --git a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
index 75de2f6fbd..6937df85fb 100644
--- a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
+++ b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
@@ -1633,12 +1633,6 @@ void RenderForwardMobile::_setup_environment(const RenderDataRD *p_render_data,
 		scene_state.ubo.ssao_ao_affect = environment_get_ssao_ao_affect(p_render_data->environment);
 		scene_state.ubo.ssao_light_affect = environment_get_ssao_light_affect(p_render_data->environment);
 
-		Color ao_color = environment_get_ao_color(p_render_data->environment).to_linear();
-		scene_state.ubo.ao_color[0] = ao_color.r;
-		scene_state.ubo.ao_color[1] = ao_color.g;
-		scene_state.ubo.ao_color[2] = ao_color.b;
-		scene_state.ubo.ao_color[3] = ao_color.a;
-
 		scene_state.ubo.fog_enabled = environment_is_fog_enabled(p_render_data->environment);
 		scene_state.ubo.fog_density = environment_get_fog_density(p_render_data->environment);
 		scene_state.ubo.fog_height = environment_get_fog_height(p_render_data->environment);
diff --git a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h
index 38f80c5347..36a92e1464 100644
--- a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h
+++ b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h
@@ -294,8 +294,6 @@ protected:
 			float roughness_limiter_limit;
 			uint32_t roughness_limiter_pad[2];
 
-			float ao_color[4];
-
 			// Fog
 			uint32_t fog_enabled;
 			float fog_density;
diff --git a/servers/rendering/renderer_rd/renderer_scene_environment_rd.cpp b/servers/rendering/renderer_rd/renderer_scene_environment_rd.cpp
index d631cb4bac..bb7fbbcdc2 100644
--- a/servers/rendering/renderer_rd/renderer_scene_environment_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_scene_environment_rd.cpp
@@ -32,13 +32,12 @@
 
 uint64_t RendererSceneEnvironmentRD::auto_exposure_counter = 2;
 
-void RendererSceneEnvironmentRD::set_ambient_light(const Color &p_color, RS::EnvironmentAmbientSource p_ambient, float p_energy, float p_sky_contribution, RS::EnvironmentReflectionSource p_reflection_source, const Color &p_ao_color) {
+void RendererSceneEnvironmentRD::set_ambient_light(const Color &p_color, RS::EnvironmentAmbientSource p_ambient, float p_energy, float p_sky_contribution, RS::EnvironmentReflectionSource p_reflection_source) {
 	ambient_light = p_color;
 	ambient_source = p_ambient;
 	ambient_light_energy = p_energy;
 	ambient_sky_contribution = p_sky_contribution;
 	reflection_source = p_reflection_source;
-	ao_color = p_ao_color;
 }
 
 void RendererSceneEnvironmentRD::set_tonemap(RS::EnvironmentToneMapper p_tone_mapper, float p_exposure, float p_white, bool p_auto_exposure, float p_min_luminance, float p_max_luminance, float p_auto_exp_speed, float p_auto_exp_scale) {
diff --git a/servers/rendering/renderer_rd/renderer_scene_environment_rd.h b/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
index 992c4bf471..bc47abbff5 100644
--- a/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
@@ -52,7 +52,6 @@ public:
 	float ambient_light_energy = 1.0;
 	float ambient_sky_contribution = 1.0;
 	RS::EnvironmentReflectionSource reflection_source = RS::ENV_REFLECTION_SOURCE_BG;
-	Color ao_color;
 
 	/// Tonemap
 
@@ -142,7 +141,7 @@ public:
 	bool use_1d_color_correction = false;
 	RID color_correction = RID();
 
-	void set_ambient_light(const Color &p_color, RS::EnvironmentAmbientSource p_ambient, float p_energy, float p_sky_contribution, RS::EnvironmentReflectionSource p_reflection_source, const Color &p_ao_color);
+	void set_ambient_light(const Color &p_color, RS::EnvironmentAmbientSource p_ambient, float p_energy, float p_sky_contribution, RS::EnvironmentReflectionSource p_reflection_source);
 	void set_tonemap(RS::EnvironmentToneMapper p_tone_mapper, float p_exposure, float p_white, bool p_auto_exposure, float p_min_luminance, float p_max_luminance, float p_auto_exp_speed, float p_auto_exp_scale);
 	void set_glow(bool p_enable, Vector<float> p_levels, float p_intensity, float p_strength, float p_mix, float p_bloom_threshold, RS::EnvironmentGlowBlendMode p_blend_mode, float p_hdr_bleed_threshold, float p_hdr_bleed_scale, float p_hdr_luminance_cap);
 	void set_sdfgi(bool p_enable, RS::EnvironmentSDFGICascades p_cascades, float p_min_cell_size, RS::EnvironmentSDFGIYScale p_y_scale, bool p_use_occlusion, float p_bounce_feedback, bool p_read_sky, float p_energy, float p_normal_bias, float p_probe_bias);
diff --git a/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp b/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp
index ecc560fc5d..ea73dbf26e 100644
--- a/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp
@@ -3121,7 +3121,6 @@ void RendererSceneGIRD::process_gi(RID p_render_buffers, RID p_normal_roughness_
 
 	RendererSceneRenderRD::RenderBuffers *rb = p_scene_render->render_buffers_owner.get_or_null(p_render_buffers);
 	ERR_FAIL_COND(rb == nullptr);
-	RendererSceneEnvironmentRD *env = p_scene_render->environment_owner.get_or_null(p_environment);
 
 	if (rb->ambient_buffer.is_null() || rb->gi.using_half_size_gi != half_resolution) {
 		if (rb->ambient_buffer.is_valid()) {
@@ -3160,16 +3159,6 @@ void RendererSceneGIRD::process_gi(RID p_render_buffers, RID p_normal_roughness_
 	bool use_sdfgi = rb->sdfgi != nullptr;
 	bool use_voxel_gi_instances = push_constant.max_voxel_gi_instances > 0;
 
-	if (env) {
-		push_constant.ao_color[0] = env->ao_color.r;
-		push_constant.ao_color[1] = env->ao_color.g;
-		push_constant.ao_color[2] = env->ao_color.b;
-	} else {
-		push_constant.ao_color[0] = 0;
-		push_constant.ao_color[1] = 0;
-		push_constant.ao_color[2] = 0;
-	}
-
 	push_constant.cam_rotation[0] = p_transform.basis[0][0];
 	push_constant.cam_rotation[1] = p_transform.basis[1][0];
 	push_constant.cam_rotation[2] = p_transform.basis[2][0];
diff --git a/servers/rendering/renderer_rd/renderer_scene_gi_rd.h b/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
index 5bd41a104e..9f6fc8a9b7 100644
--- a/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
@@ -623,12 +623,11 @@ public:
 		float z_far;
 
 		float proj_info[4];
-		float ao_color[3];
-		uint32_t max_voxel_gi_instances;
 
+		uint32_t max_voxel_gi_instances;
 		uint32_t high_quality_vct;
 		uint32_t orthogonal;
-		uint32_t pad[2];
+		uint32_t pad;
 
 		float cam_rotation[12];
 	};
diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp b/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp
index a1c2f4f49c..bd8e950e70 100644
--- a/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp
@@ -205,10 +205,10 @@ void RendererSceneRenderRD::environment_set_canvas_max_layer(RID p_env, int p_ma
 	env->canvas_max_layer = p_max_layer;
 }
 
-void RendererSceneRenderRD::environment_set_ambient_light(RID p_env, const Color &p_color, RS::EnvironmentAmbientSource p_ambient, float p_energy, float p_sky_contribution, RS::EnvironmentReflectionSource p_reflection_source, const Color &p_ao_color) {
+void RendererSceneRenderRD::environment_set_ambient_light(RID p_env, const Color &p_color, RS::EnvironmentAmbientSource p_ambient, float p_energy, float p_sky_contribution, RS::EnvironmentReflectionSource p_reflection_source) {
 	RendererSceneEnvironmentRD *env = environment_owner.get_or_null(p_env);
 	ERR_FAIL_COND(!env);
-	env->set_ambient_light(p_color, p_ambient, p_energy, p_sky_contribution, p_reflection_source, p_ao_color);
+	env->set_ambient_light(p_color, p_ambient, p_energy, p_sky_contribution, p_reflection_source);
 }
 
 RS::EnvironmentBG RendererSceneRenderRD::environment_get_background(RID p_env) const {
@@ -283,12 +283,6 @@ RS::EnvironmentReflectionSource RendererSceneRenderRD::environment_get_reflectio
 	return env->reflection_source;
 }
 
-Color RendererSceneRenderRD::environment_get_ao_color(RID p_env) const {
-	RendererSceneEnvironmentRD *env = environment_owner.get_or_null(p_env);
-	ERR_FAIL_COND_V(!env, Color());
-	return env->ao_color;
-}
-
 void RendererSceneRenderRD::environment_set_tonemap(RID p_env, RS::EnvironmentToneMapper p_tone_mapper, float p_exposure, float p_white, bool p_auto_exposure, float p_min_luminance, float p_max_luminance, float p_auto_exp_speed, float p_auto_exp_scale) {
 	RendererSceneEnvironmentRD *env = environment_owner.get_or_null(p_env);
 	ERR_FAIL_COND(!env);
diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.h b/servers/rendering/renderer_rd/renderer_scene_render_rd.h
index fa80b84cfe..d74848f0af 100644
--- a/servers/rendering/renderer_rd/renderer_scene_render_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.h
@@ -873,7 +873,7 @@ public:
 	virtual void environment_set_bg_color(RID p_env, const Color &p_color) override;
 	virtual void environment_set_bg_energy(RID p_env, float p_energy) override;
 	virtual void environment_set_canvas_max_layer(RID p_env, int p_max_layer) override;
-	virtual void environment_set_ambient_light(RID p_env, const Color &p_color, RS::EnvironmentAmbientSource p_ambient = RS::ENV_AMBIENT_SOURCE_BG, float p_energy = 1.0, float p_sky_contribution = 0.0, RS::EnvironmentReflectionSource p_reflection_source = RS::ENV_REFLECTION_SOURCE_BG, const Color &p_ao_color = Color()) override;
+	virtual void environment_set_ambient_light(RID p_env, const Color &p_color, RS::EnvironmentAmbientSource p_ambient = RS::ENV_AMBIENT_SOURCE_BG, float p_energy = 1.0, float p_sky_contribution = 0.0, RS::EnvironmentReflectionSource p_reflection_source = RS::ENV_REFLECTION_SOURCE_BG) override;
 
 	virtual RS::EnvironmentBG environment_get_background(RID p_env) const override;
 	RID environment_get_sky(RID p_env) const;
@@ -887,7 +887,6 @@ public:
 	float environment_get_ambient_light_energy(RID p_env) const;
 	float environment_get_ambient_sky_contribution(RID p_env) const;
 	RS::EnvironmentReflectionSource environment_get_reflection_source(RID p_env) const;
-	Color environment_get_ao_color(RID p_env) const;
 
 	virtual bool is_environment(RID p_env) const override;
 
diff --git a/servers/rendering/renderer_rd/shaders/gi.glsl b/servers/rendering/renderer_rd/shaders/gi.glsl
index 60c881881d..5528ea3659 100644
--- a/servers/rendering/renderer_rd/shaders/gi.glsl
+++ b/servers/rendering/renderer_rd/shaders/gi.glsl
@@ -97,12 +97,10 @@ layout(push_constant, binding = 0, std430) uniform Params {
 
 	vec4 proj_info;
 
-	vec3 ao_color;
 	uint max_voxel_gi_instances;
-
 	bool high_quality_vct;
 	bool orthogonal;
-	uint pad[2];
+	uint pad;
 
 	mat3x4 cam_rotation;
 }
diff --git a/servers/rendering/renderer_rd/shaders/scene_forward_clustered_inc.glsl b/servers/rendering/renderer_rd/shaders/scene_forward_clustered_inc.glsl
index b53bf6a6d4..b943d81784 100644
--- a/servers/rendering/renderer_rd/shaders/scene_forward_clustered_inc.glsl
+++ b/servers/rendering/renderer_rd/shaders/scene_forward_clustered_inc.glsl
@@ -209,8 +209,6 @@ layout(set = 1, binding = 0, std140) uniform SceneData {
 	float roughness_limiter_limit;
 	uvec2 roughness_limiter_pad;
 
-	vec4 ao_color;
-
 	mat4 sdf_to_bounds;
 
 	ivec3 sdf_offset;
diff --git a/servers/rendering/renderer_rd/shaders/scene_forward_mobile_inc.glsl b/servers/rendering/renderer_rd/shaders/scene_forward_mobile_inc.glsl
index dd8879acb4..eb8fb49598 100644
--- a/servers/rendering/renderer_rd/shaders/scene_forward_mobile_inc.glsl
+++ b/servers/rendering/renderer_rd/shaders/scene_forward_mobile_inc.glsl
@@ -170,8 +170,6 @@ layout(set = 1, binding = 0, std140) uniform SceneData {
 	mediump float roughness_limiter_limit;
 	uvec2 roughness_limiter_pad;
 
-	mediump vec4 ao_color;
-
 	bool fog_enabled;
 	highp float fog_density;
 	highp float fog_height;