Added volumetric fog effect.

1 files changed, 95 insertions, 0 deletions

diff --git a/servers/rendering/rasterizer_rd/shaders/cluster_data_inc.glsl b/servers/rendering/rasterizer_rd/shaders/cluster_data_inc.glsl
new file mode 100644
index 0000000000..e723468dd8
--- /dev/null
+++ b/servers/rendering/rasterizer_rd/shaders/cluster_data_inc.glsl
@@ -0,0 +1,95 @@
+
+#define CLUSTER_COUNTER_SHIFT 20
+#define CLUSTER_POINTER_MASK ((1 << CLUSTER_COUNTER_SHIFT) - 1)
+#define CLUSTER_COUNTER_MASK 0xfff
+
+struct LightData { //this structure needs to be as packed as possible
+	vec3 position;
+	float inv_radius;
+	vec3 direction;
+	float size;
+	uint attenuation_energy; //attenuation
+	uint color_specular; //rgb color, a specular (8 bit unorm)
+	uint cone_attenuation_angle; // attenuation and angle, (16bit float)
+	uint shadow_color_enabled; //shadow rgb color, a>0.5 enabled (8bit unorm)
+	vec4 atlas_rect; // rect in the shadow atlas
+	mat4 shadow_matrix;
+	float shadow_bias;
+	float shadow_normal_bias;
+	float transmittance_bias;
+	float soft_shadow_size; // for spot, it's the size in uv coordinates of the light, for omni it's the span angle
+	float soft_shadow_scale; // scales the shadow kernel for blurrier shadows
+	uint mask;
+	float shadow_volumetric_fog_fade;
+	uint pad;
+	vec4 projector_rect; //projector rect in srgb decal atlas
+};
+
+#define REFLECTION_AMBIENT_DISABLED 0
+#define REFLECTION_AMBIENT_ENVIRONMENT 1
+#define REFLECTION_AMBIENT_COLOR 2
+
+struct ReflectionData {
+	vec3 box_extents;
+	float index;
+	vec3 box_offset;
+	uint mask;
+	vec4 params; // intensity, 0, interior , boxproject
+	vec3 ambient; // ambient color
+	uint ambient_mode;
+	mat4 local_matrix; // up to here for spot and omni, rest is for directional
+	// notes: for ambientblend, use distance to edge to blend between already existing global environment
+};
+
+struct DirectionalLightData {
+	vec3 direction;
+	float energy;
+	vec3 color;
+	float size;
+	float specular;
+	uint mask;
+	float softshadow_angle;
+	float soft_shadow_scale;
+	bool blend_splits;
+	bool shadow_enabled;
+	float fade_from;
+	float fade_to;
+	uvec3 pad;
+	float shadow_volumetric_fog_fade;
+	vec4 shadow_bias;
+	vec4 shadow_normal_bias;
+	vec4 shadow_transmittance_bias;
+	vec4 shadow_z_range;
+	vec4 shadow_range_begin;
+	vec4 shadow_split_offsets;
+	mat4 shadow_matrix1;
+	mat4 shadow_matrix2;
+	mat4 shadow_matrix3;
+	mat4 shadow_matrix4;
+	vec4 shadow_color1;
+	vec4 shadow_color2;
+	vec4 shadow_color3;
+	vec4 shadow_color4;
+	vec2 uv_scale1;
+	vec2 uv_scale2;
+	vec2 uv_scale3;
+	vec2 uv_scale4;
+};
+
+struct DecalData {
+	mat4 xform; //to decal transform
+	vec3 inv_extents;
+	float albedo_mix;
+	vec4 albedo_rect;
+	vec4 normal_rect;
+	vec4 orm_rect;
+	vec4 emission_rect;
+	vec4 modulate;
+	float emission_energy;
+	uint mask;
+	float upper_fade;
+	float lower_fade;
+	mat3x4 normal_xform;
+	vec3 normal;
+	float normal_fade;
+};