virtualx-engine/servers/visual/rasterizer_rd/shaders/scene_forward_inc.glsl
2020-02-11 12:01:05 +01:00

180 lines
4 KiB
GLSL

#define M_PI 3.14159265359
#define ROUGHNESS_MAX_LOD 5
/* Set 0 Scene data, screen and sources (changes the least) */
layout(set=0,binding=1) uniform texture2D depth_buffer;
layout(set=0,binding=2) uniform texture2D color_buffer;
layout(set=0,binding=3) uniform texture2D normal_buffer;
layout(set=0,binding=4) uniform texture2D roughness_limit;
#ifdef USE_RADIANCE_CUBEMAP_ARRAY
layout(set = 0, binding = 5) uniform textureCubeArray radiance_cubemap;
#else
layout(set = 0, binding = 5) uniform textureCube radiance_cubemap;
#endif
#define SAMPLER_NEAREST_CLAMP 0
#define SAMPLER_LINEAR_CLAMP 1
#define SAMPLER_NEAREST_WITH_MIMPAMPS_CLAMP 2
#define SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP 3
#define SAMPLER_NEAREST_WITH_MIMPAMPS_ANISOTROPIC_CLAMP 4
#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_CLAMP 5
#define SAMPLER_NEAREST_REPEAT 6
#define SAMPLER_LINEAR_REPEAT 7
#define SAMPLER_NEAREST_WITH_MIMPAMPS_REPEAT 8
#define SAMPLER_LINEAR_WITH_MIPMAPS_REPEAT 9
#define SAMPLER_NEAREST_WITH_MIMPAMPS_ANISOTROPIC_REPEAT 10
#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_REPEAT 11
layout(set = 0, binding = 6) uniform sampler material_samplers[12];
layout(set=0,binding=7,std140) uniform SceneData {
mat4 projection_matrix;
mat4 inv_projection_matrix;
mat4 camera_matrix;
mat4 inv_camera_matrix;
vec2 viewport_size;
vec2 screen_pixel_size;
//used for shadow mapping only
float z_offset;
float z_slope_scale;
float time;
float reflection_multiplier; // one normally, zero when rendering reflections
vec4 ambient_light_color_energy;
float ambient_color_sky_mix;
bool use_ambient_light;
bool use_ambient_cubemap;
bool use_reflection_cubemap;
mat3 radiance_inverse_xform;
#if 0
vec4 ambient_light_color;
vec4 bg_color;
vec4 fog_color_enabled;
vec4 fog_sun_color_amount;
float ambient_energy;
float bg_energy;
#endif
#if 0
vec2 shadow_atlas_pixel_size;
vec2 directional_shadow_pixel_size;
float z_far;
float subsurface_scatter_width;
float ambient_occlusion_affect_light;
float ambient_occlusion_affect_ao_channel;
float opaque_prepass_threshold;
bool fog_depth_enabled;
float fog_depth_begin;
float fog_depth_end;
float fog_density;
float fog_depth_curve;
bool fog_transmit_enabled;
float fog_transmit_curve;
bool fog_height_enabled;
float fog_height_min;
float fog_height_max;
float fog_height_curve;
#endif
} scene_data;
#if 0
struct DirectionalLightData {
vec4 light_pos_inv_radius;
vec4 light_direction_attenuation;
vec4 light_color_energy;
vec4 light_params; // cone attenuation, angle, specular, shadow enabled,
vec4 light_clamp;
vec4 shadow_color_contact;
mat4 shadow_matrix1;
mat4 shadow_matrix2;
mat4 shadow_matrix3;
mat4 shadow_matrix4;
vec4 shadow_split_offsets;
};
#endif
/* Set 1 Skeleton Data (most objects lack it, so it changes little */
#if 0
layout(set = 1 binding = 0, std140) uniform SkeletonData {
mat4 transform;
bool use_skeleton;
bool use_world_coords;
bool pad1;
bool pad2;
} skeleton;
layout(set = 1, binding = 1) uniform textureBuffer skeleton_bones;
#endif
/* Set 2 Custom Material Data (changess less than instance) */
/* Set 3 Instance Data (Set on every draw call) */
layout(push_constant, binding = 0, std430) uniform DrawData {
//used in forward rendering, 16 bits indices, max 8
uint reflection_probe_count;
uint omni_light_count;
uint spot_light_count;
uint decal_count;
uvec4 reflection_probe_indices;
uvec4 omni_light_indices;
uvec4 spot_light_indices;
uvec4 decal_indices;
} draw_data;
layout(set = 3, binding = 0, std140) uniform InstanceData {
mat4 transform;
mat3 normal_transform;
uint flags;
uint pad0;
uint pad1;
uint pad2;
} instance_data;
layout(set = 3, binding = 1) uniform textureBuffer multimesh_transforms;
#ifdef USE_LIGHTMAP
layout(set = 3, binding = 2) uniform texture2D lightmap;
#endif
#ifdef USE_VOXEL_CONE_TRACING
layout(set = 3, binding = 3) uniform texture3D gi_probe[2];
#ifdef USE_ANISOTROPIC_VOXEL_CONE_TRACING
layout(set = 3, binding = 4) uniform texture3D gi_probe_aniso_pos[2];
layout(set = 3, binding = 5) uniform texture3D gi_probe_aniso_neg[2];
#endif
#endif