Fix non uniform scaling in 3D objects

* Flag was there, but not implemented.
* Fixed issue with base flags not being initialized.

servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp

@@ -903,6 +903,9 @@ void RenderForwardClustered::_fill_render_list(RenderListType p_render_list, con
 
 		uint32_t flags = inst->base_flags; //fill flags if appropriate
 
+		if (inst->non_uniform_scale) {
+			flags |= INSTANCE_DATA_FLAGS_NON_UNIFORM_SCALE;
+		}
 		bool uses_lightmap = false;
 		bool uses_gi = false;
 
@@ -2594,6 +2597,8 @@ void RenderForwardClustered::_geometry_instance_update(GeometryInstance *p_geome
 
 	//Fill push constant
 
+	ginstance->base_flags = 0;
+
 	bool store_transform = true;
 
 	if (ginstance->data->base_type == RS::INSTANCE_MULTIMESH) {
@@ -2737,6 +2742,7 @@ void RenderForwardClustered::geometry_instance_set_transform(GeometryInstance *p
 
 	float max_scale = MAX(model_scale_vec.x, MAX(model_scale_vec.y, model_scale_vec.z));
 	float min_scale = MIN(model_scale_vec.x, MIN(model_scale_vec.y, model_scale_vec.z));
+
 	ginstance->non_uniform_scale = max_scale >= 0.0 && (min_scale / max_scale) < 0.9;
 
 	ginstance->lod_model_scale = max_scale;

servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h

@@ -184,6 +184,7 @@ class RenderForwardClustered : public RendererSceneRenderRD {
 	};
 
 	enum {
+		INSTANCE_DATA_FLAGS_NON_UNIFORM_SCALE = 1 << 5,
 		INSTANCE_DATA_FLAG_USE_GI_BUFFERS = 1 << 6,
 		INSTANCE_DATA_FLAG_USE_SDFGI = 1 << 7,
 		INSTANCE_DATA_FLAG_USE_LIGHTMAP_CAPTURE = 1 << 8,
@@ -196,7 +197,6 @@ class RenderForwardClustered : public RendererSceneRenderRD {
 		INSTANCE_DATA_FLAG_MULTIMESH_HAS_CUSTOM_DATA = 1 << 15,
 		INSTANCE_DATA_FLAGS_PARTICLE_TRAIL_SHIFT = 16,
 		INSTANCE_DATA_FLAGS_PARTICLE_TRAIL_MASK = 0xFF,
-		INSTANCE_DATA_FLAGS_NON_UNIFORM_SCALE = 1 << 24,
 	};
 
 	struct SceneState {

servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp

@@ -963,6 +963,10 @@ void RenderForwardMobile::_fill_render_list(RenderListType p_render_list, const
 
 		uint32_t flags = inst->base_flags; //fill flags if appropriate
 
+		if (inst->non_uniform_scale) {
+			flags |= INSTANCE_DATA_FLAGS_NON_UNIFORM_SCALE;
+		}
+
 		bool uses_lightmap = false;
 		// bool uses_gi = false;
 
@@ -1995,6 +1999,7 @@ void RenderForwardMobile::_geometry_instance_update(GeometryInstance *p_geometry
 	//Fill push constant
 
 	bool store_transform = true;
+	ginstance->base_flags = 0;
 
 	if (ginstance->data->base_type == RS::INSTANCE_MULTIMESH) {
 		ginstance->base_flags |= INSTANCE_DATA_FLAG_MULTIMESH;

servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h

@@ -390,6 +390,7 @@ protected:
 
 	// check which ones of these apply, probably all except GI and SDFGI
 	enum {
+		INSTANCE_DATA_FLAGS_NON_UNIFORM_SCALE = 1 << 5,
 		INSTANCE_DATA_FLAG_USE_GI_BUFFERS = 1 << 6,
 		INSTANCE_DATA_FLAG_USE_SDFGI = 1 << 7,
 		INSTANCE_DATA_FLAG_USE_LIGHTMAP_CAPTURE = 1 << 8,
@@ -402,7 +403,6 @@ protected:
 		INSTANCE_DATA_FLAG_MULTIMESH_HAS_CUSTOM_DATA = 1 << 15,
 		INSTANCE_DATA_FLAGS_PARTICLE_TRAIL_SHIFT = 16,
 		INSTANCE_DATA_FLAGS_PARTICLE_TRAIL_MASK = 0xFF,
-		INSTANCE_DATA_FLAGS_NON_UNIFORM_SCALE = 1 << 24,
 	};
 
 	struct GeometryInstanceLightmapSH {

servers/rendering/renderer_rd/shaders/scene_forward_clustered_inc.glsl

@@ -52,6 +52,7 @@ layout(set = 0, binding = 1) uniform sampler material_samplers[12];
 
 layout(set = 0, binding = 2) uniform sampler shadow_sampler;
 
+#define INSTANCE_FLAGS_NON_UNIFORM_SCALE (1 << 5)
 #define INSTANCE_FLAGS_USE_GI_BUFFERS (1 << 6)
 #define INSTANCE_FLAGS_USE_SDFGI (1 << 7)
 #define INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE (1 << 8)
@@ -66,8 +67,6 @@ layout(set = 0, binding = 2) uniform sampler shadow_sampler;
 //3 bits of stride
 #define INSTANCE_FLAGS_PARTICLE_TRAIL_MASK 0xFF
 
-#define INSTANCE_FLAGS_NON_UNIFORM_SCALE (1 << 24)
-
 layout(set = 0, binding = 3, std430) restrict readonly buffer OmniLights {
 	LightData data[];
 }

servers/rendering/renderer_rd/shaders/scene_forward_mobile_inc.glsl

@@ -51,6 +51,7 @@ layout(set = 0, binding = 1) uniform sampler material_samplers[12];
 
 layout(set = 0, binding = 2) uniform sampler shadow_sampler;
 
+#define INSTANCE_FLAGS_NON_UNIFORM_SCALE (1 << 5)
 #define INSTANCE_FLAGS_USE_GI_BUFFERS (1 << 6)
 #define INSTANCE_FLAGS_USE_SDFGI (1 << 7)
 #define INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE (1 << 8)
@@ -65,8 +66,6 @@ layout(set = 0, binding = 2) uniform sampler shadow_sampler;
 //3 bits of stride
 #define INSTANCE_FLAGS_PARTICLE_TRAIL_MASK 0xFF
 
-#define INSTANCE_FLAGS_NON_UNIFORM_SCALE (1 << 24)
-
 layout(set = 0, binding = 3, std430) restrict readonly buffer OmniLights {
 	LightData data[];
 }