Added flag on SpatialMaterial to disable shadows

drivers/gles3/shader_compiler_gles3.cpp

@@ -914,6 +914,7 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() {
 	actions[VS::SHADER_SPATIAL].render_mode_defines["specular_phong"] = "#define SPECULAR_PHONG\n";
 	actions[VS::SHADER_SPATIAL].render_mode_defines["specular_toon"] = "#define SPECULAR_TOON\n";
 	actions[VS::SHADER_SPATIAL].render_mode_defines["specular_disabled"] = "#define SPECULAR_DISABLED\n";
+	actions[VS::SHADER_SPATIAL].render_mode_defines["shadows_disabled"] = "#define SHADOWS_DISABLED\n";
 
 	/* PARTICLES SHADER */
 

drivers/gles3/shaders/scene.glsl

@@ -1206,6 +1206,7 @@ void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 bino
 	float omni_attenuation = pow( max(1.0 - normalized_distance, 0.0), omni_lights[idx].light_direction_attenuation.w );
 	vec3 light_attenuation = vec3(omni_attenuation);
 
+#if !defined(SHADOWS_DISABLED)
 	if (omni_lights[idx].light_params.w>0.5) {
 		//there is a shadowmap
 
@@ -1252,6 +1253,7 @@ void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 bino
 #endif
 		light_attenuation*=mix(omni_lights[idx].shadow_color_contact.rgb,vec3(1.0),shadow);
 	}
+#endif //SHADOWS_DISABLED
 
 	light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,omni_lights[idx].light_color_energy.rgb,light_attenuation,albedo,transmission,omni_lights[idx].light_params.z*p_blob_intensity,roughness,metallic,rim * omni_attenuation,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
 
@@ -1270,6 +1272,7 @@ void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
 	spot_attenuation*= 1.0 - pow( spot_rim, spot_lights[idx].light_params.x);
 	vec3 light_attenuation = vec3(spot_attenuation);
 
+#if !defined(SHADOWS_DISABLED)
 	if (spot_lights[idx].light_params.w>0.5) {
 		//there is a shadowmap
 		highp vec4 splane=(spot_lights[idx].shadow_matrix * vec4(vertex,1.0));
@@ -1287,6 +1290,7 @@ void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
 #endif
 		light_attenuation*=mix(spot_lights[idx].shadow_color_contact.rgb,vec3(1.0),shadow);
 	}
+#endif //SHADOWS_DISABLED
 
 	light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,spot_lights[idx].light_color_energy.rgb,light_attenuation,albedo,transmission,spot_lights[idx].light_params.z*p_blob_intensity,roughness,metallic,rim * spot_attenuation,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
 
@@ -1785,6 +1789,7 @@ FRAGMENT_SHADER_CODE
 
 	float depth_z = -vertex.z;
 #ifdef LIGHT_DIRECTIONAL_SHADOW
+#if !defined(SHADOWS_DISABLED)
 
 #ifdef LIGHT_USE_PSSM4
 	if (depth_z < shadow_split_offsets.w) {
@@ -1927,6 +1932,7 @@ FRAGMENT_SHADER_CODE
 	}
 
 
+#endif // !defined(SHADOWS_DISABLED)
 #endif //LIGHT_DIRECTIONAL_SHADOW
 
 #ifdef USE_VERTEX_LIGHTING

scene/resources/material.cpp

@@ -387,10 +387,12 @@ void SpatialMaterial::_update_shader() {
 	if (flags[FLAG_USE_VERTEX_LIGHTING]) {
 		code += ",vertex_lighting";
 	}
-
 	if (flags[FLAG_TRIPLANAR_USE_WORLD] && (flags[FLAG_UV1_USE_TRIPLANAR] || flags[FLAG_UV2_USE_TRIPLANAR])) {
 		code += ",world_vertex_coords";
 	}
+	if (flags[FLAG_DONT_RECEIVE_SHADOWS]) {
+		code += ",shadows_disabled";
+	}
 	code += ";\n";
 
 	code += "uniform vec4 albedo : hint_color;\n";
@@ -1849,6 +1851,7 @@ void SpatialMaterial::_bind_methods() {
 	ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flags_world_triplanar"), "set_flag", "get_flag", FLAG_TRIPLANAR_USE_WORLD);
 	ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flags_fixed_size"), "set_flag", "get_flag", FLAG_FIXED_SIZE);
 	ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flags_albedo_tex_force_srgb"), "set_flag", "get_flag", FLAG_ALBEDO_TEXTURE_FORCE_SRGB);
+	ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flags_do_not_receive_shadows"), "set_flag", "get_flag", FLAG_DONT_RECEIVE_SHADOWS);
 	ADD_GROUP("Vertex Color", "vertex_color");
 	ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "vertex_color_use_as_albedo"), "set_flag", "get_flag", FLAG_ALBEDO_FROM_VERTEX_COLOR);
 	ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "vertex_color_is_srgb"), "set_flag", "get_flag", FLAG_SRGB_VERTEX_COLOR);
@@ -2038,6 +2041,7 @@ void SpatialMaterial::_bind_methods() {
 	BIND_ENUM_CONSTANT(FLAG_USE_ALPHA_SCISSOR);
 	BIND_ENUM_CONSTANT(FLAG_TRIPLANAR_USE_WORLD);
 	BIND_ENUM_CONSTANT(FLAG_ALBEDO_TEXTURE_FORCE_SRGB);
+	BIND_ENUM_CONSTANT(FLAG_DONT_RECEIVE_SHADOWS);
 	BIND_ENUM_CONSTANT(FLAG_MAX);
 
 	BIND_ENUM_CONSTANT(DIFFUSE_BURLEY);

scene/resources/material.h

@@ -188,6 +188,7 @@ public:
 		FLAG_EMISSION_ON_UV2,
 		FLAG_USE_ALPHA_SCISSOR,
 		FLAG_ALBEDO_TEXTURE_FORCE_SRGB,
+		FLAG_DONT_RECEIVE_SHADOWS,
 		FLAG_MAX
 	};
 
@@ -236,7 +237,7 @@ private:
 			uint64_t blend_mode : 2;
 			uint64_t depth_draw_mode : 2;
 			uint64_t cull_mode : 2;
-			uint64_t flags : 14;
+			uint64_t flags : 15;
 			uint64_t detail_blend_mode : 2;
 			uint64_t diffuse_mode : 3;
 			uint64_t specular_mode : 2;

servers/visual/shader_types.cpp

@@ -173,6 +173,8 @@ ShaderTypes::ShaderTypes() {
 	shader_modes[VS::SHADER_SPATIAL].modes.insert("skip_vertex_transform");
 	shader_modes[VS::SHADER_SPATIAL].modes.insert("world_vertex_coords");
 
+	shader_modes[VS::SHADER_SPATIAL].modes.insert("shadows_disabled");
+
 	shader_modes[VS::SHADER_SPATIAL].modes.insert("vertex_lighting");
 
 	/************ CANVAS ITEM **************************/