// Scene data stores all our 3D rendering globals for a frame such as our matrices
// where this information is independent of the different RD implementations.
// This enables us to use this UBO in our main scene render shaders but also in
// effects that need access to this data.

#define SCENE_DATA_FLAGS_USE_AMBIENT_LIGHT (1 << 0)
#define SCENE_DATA_FLAGS_USE_AMBIENT_CUBEMAP (1 << 1)
#define SCENE_DATA_FLAGS_USE_REFLECTION_CUBEMAP (1 << 2)
#define SCENE_DATA_FLAGS_USE_ROUGHNESS_LIMITER (1 << 3)
#define SCENE_DATA_FLAGS_USE_FOG (1 << 4)
#define SCENE_DATA_FLAGS_USE_UV2_MATERIAL (1 << 5)
#define SCENE_DATA_FLAGS_USE_PANCAKE_SHADOWS (1 << 6)
#define SCENE_DATA_FLAGS_IN_SHADOW_PASS (1 << 7)

struct SceneData {
	highp mat4 projection_matrix;
	highp mat4 inv_projection_matrix;
	highp mat4 inv_view_matrix;
	highp mat4 view_matrix;

	// only used for multiview
	highp mat4 projection_matrix_view[MAX_VIEWS];
	highp mat4 inv_projection_matrix_view[MAX_VIEWS];
	highp vec4 eye_offset[MAX_VIEWS];

	// Used for billboards to cast correct shadows.
	highp mat4 main_cam_inv_view_matrix;

	highp vec2 viewport_size;
	highp vec2 screen_pixel_size;

	// Use vec4s because std140 doesn't play nice with vec2s, z and w are wasted.
	highp vec4 directional_penumbra_shadow_kernel[32];
	highp vec4 directional_soft_shadow_kernel[32];
	highp vec4 penumbra_shadow_kernel[32];
	highp vec4 soft_shadow_kernel[32];

	highp vec2 shadow_atlas_pixel_size;
	highp vec2 directional_shadow_pixel_size;

	uint directional_light_count;
	mediump float dual_paraboloid_side;
	highp float z_far;
	highp float z_near;

	mediump float roughness_limiter_amount;
	mediump float roughness_limiter_limit;
	mediump float opaque_prepass_threshold;
	highp uint flags;

	mediump mat3 radiance_inverse_xform;

	mediump vec4 ambient_light_color_energy;

	mediump float ambient_color_sky_mix;
	highp float fog_density;
	highp float fog_height;
	highp float fog_height_density;

	highp float fog_depth_curve;
	highp float fog_depth_begin;
	highp float fog_depth_end;
	mediump float fog_sun_scatter;

	mediump vec3 fog_light_color;
	mediump float fog_aerial_perspective;

	highp float time;
	highp float taa_frame_count;
	vec2 taa_jitter;

	float emissive_exposure_normalization;
	float IBL_exposure_normalization;
	uint camera_visible_layers;
	float pass_alpha_multiplier;
};