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Refactored shadowmapping.

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- Made shadow bias size independent, so it will remain when changing light or camera size.
- Implemented normal offset bias, which greatly enhances quality.
- Added transmission to subsurface scattering
- Reimplemented shadow filter modes

Closes #17260
This commit is contained in:
Juan Linietsky
2020-04-07 22:51:52 -03:00
parent b2f79cac9a
commit 4ffc0d6b3f
34 changed files with 1032 additions and 291 deletions
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25
servers/rendering/rasterizer_rd/rasterizer_scene_high_end_rd.h
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@@ -138,6 +138,7 @@ class RasterizerSceneHighEndRD : public RasterizerSceneRD {
bool unshaded;
bool uses_vertex;
bool uses_sss;
bool uses_transmittance;
bool uses_screen_texture;
bool uses_depth_texture;
bool uses_normal_texture;
@@ -260,6 +261,10 @@ class RasterizerSceneHighEndRD : public RasterizerSceneRD {
uint8_t shadow_color_enabled[4]; //shadow rgb color, a>0.5 enabled (8bit unorm)
float atlas_rect[4]; // in omni, used for atlas uv, in spot, used for projector uv
float shadow_matrix[16];
float shadow_bias;
float shadow_normal_bias;
float transmittance_bias;
uint32_t pad;
};
struct DirectionalLightData {
@@ -268,14 +273,22 @@ class RasterizerSceneHighEndRD : public RasterizerSceneRD {
float energy;
float color[3];
float specular;
float shadow_color[3];
uint32_t mask;
uint32_t pad[3];
uint32_t blend_splits;
uint32_t shadow_enabled;
float fade_from;
float fade_to;
float shadow_bias[4];
float shadow_normal_bias[4];
float shadow_transmittance_bias[4];
float shadow_transmittance_z_scale[4];
float shadow_split_offsets[4];
float shadow_matrices[4][16];
float shadow_color1[4];
float shadow_color2[4];
float shadow_color3[4];
float shadow_color4[4];
};
struct GIProbeData {
@@ -324,12 +337,12 @@ class RasterizerSceneHighEndRD : public RasterizerSceneRD {
float viewport_size[2];
float screen_pixel_size[2];
float shadow_z_offset;
float shadow_z_slope_scale;
float time;
float reflection_multiplier;
uint32_t pancake_shadows;
uint32_t shadow_filter_mode;
float ambient_light_color_energy[4];
float ambient_color_sky_mix;
@@ -558,7 +571,7 @@ class RasterizerSceneHighEndRD : public RasterizerSceneRD {
PASS_MODE_DEPTH_MATERIAL,
};
void _setup_environment(RID p_environment, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, RID p_reflection_probe, bool p_no_fog, const Size2 &p_screen_pixel_size, RID p_shadow_atlas, bool p_flip_y, const Color &p_default_bg_color, float p_znear, float p_zfar, bool p_opaque_render_buffers = false);
void _setup_environment(RID p_environment, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, RID p_reflection_probe, bool p_no_fog, const Size2 &p_screen_pixel_size, RID p_shadow_atlas, bool p_flip_y, const Color &p_default_bg_color, float p_znear, float p_zfar, bool p_opaque_render_buffers = false, bool p_pancake_shadows = false);
void _setup_lights(RID *p_light_cull_result, int p_light_cull_count, const Transform &p_camera_inverse_transform, RID p_shadow_atlas, bool p_using_shadows);
void _setup_reflections(RID *p_reflection_probe_cull_result, int p_reflection_probe_cull_count, const Transform &p_camera_inverse_transform, RID p_environment);
void _setup_gi_probes(RID *p_gi_probe_probe_cull_result, int p_gi_probe_probe_cull_count, const Transform &p_camera_transform);
@@ -572,7 +585,7 @@ class RasterizerSceneHighEndRD : public RasterizerSceneRD {
protected:
virtual void _render_scene(RID p_render_buffer, const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, RID *p_light_cull_result, int p_light_cull_count, RID *p_reflection_probe_cull_result, int p_reflection_probe_cull_count, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count, RID p_environment, RID p_camera_effects, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass, const Color &p_default_bg_color);
virtual void _render_shadow(RID p_framebuffer, InstanceBase **p_cull_result, int p_cull_count, const CameraMatrix &p_projection, const Transform &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_use_dp, bool p_use_dp_flip);
virtual void _render_shadow(RID p_framebuffer, InstanceBase **p_cull_result, int p_cull_count, const CameraMatrix &p_projection, const Transform &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake);
virtual void _render_material(const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, RID p_framebuffer, const Rect2i &p_region);
public: