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Merge pull request #37861 from reduz/implement-decals

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Implement decals
This commit is contained in:
Rémi Verschelde
2020-04-14 17:13:20 +02:00
committed by GitHub
parent c364c969cd 5944eb6e7f
commit 5e5103f460
35 changed files with 1654 additions and 67 deletions
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192
servers/rendering/rasterizer_rd/rasterizer_scene_high_end_rd.cpp
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@@ -52,6 +52,21 @@ static _FORCE_INLINE_ void store_transform(const Transform &p_mtx, float *p_arra
p_array[15] = 1;
}
static _FORCE_INLINE_ void store_basis_3x4(const Basis &p_mtx, float *p_array) {
p_array[0] = p_mtx.elements[0][0];
p_array[1] = p_mtx.elements[1][0];
p_array[2] = p_mtx.elements[2][0];
p_array[3] = 0;
p_array[4] = p_mtx.elements[0][1];
p_array[5] = p_mtx.elements[1][1];
p_array[6] = p_mtx.elements[2][1];
p_array[7] = 0;
p_array[8] = p_mtx.elements[0][2];
p_array[9] = p_mtx.elements[1][2];
p_array[10] = p_mtx.elements[2][2];
p_array[11] = 0;
}
static _FORCE_INLINE_ void store_transform_3x3(const Transform &p_mtx, float *p_array) {
p_array[0] = p_mtx.basis.elements[0][0];
p_array[1] = p_mtx.basis.elements[1][0];
@@ -1925,7 +1940,143 @@ void RasterizerSceneHighEndRD::_setup_lights(RID *p_light_cull_result, int p_lig
}
}
void RasterizerSceneHighEndRD::_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) {
void RasterizerSceneHighEndRD::_setup_decals(const RID *p_decal_instances, int p_decal_count, const Transform &p_camera_inverse_xform) {
Transform uv_xform;
uv_xform.basis.scale(Vector3(2.0, 1.0, 2.0));
uv_xform.origin = Vector3(-1.0, 0.0, -1.0);
p_decal_count = MIN((uint32_t)p_decal_count, scene_state.max_decals);
int idx = 0;
for (int i = 0; i < p_decal_count; i++) {
RID di = p_decal_instances[i];
RID decal = decal_instance_get_base(di);
Transform xform = decal_instance_get_transform(di);
float fade = 1.0;
if (storage->decal_is_distance_fade_enabled(decal)) {
real_t distance = -p_camera_inverse_xform.xform(xform.origin).z;
float fade_begin = storage->decal_get_distance_fade_begin(decal);
float fade_length = storage->decal_get_distance_fade_length(decal);
if (distance > fade_begin) {
if (distance > fade_begin + fade_length) {
continue; // do not use this decal, its invisible
}
fade = 1.0 - (distance - fade_begin) / fade_length;
}
}
DecalData &dd = scene_state.decals[idx];
Vector3 decal_extents = storage->decal_get_extents(decal);
Transform scale_xform;
scale_xform.basis.scale(Vector3(decal_extents.x, decal_extents.y, decal_extents.z));
Transform to_decal_xform = (p_camera_inverse_xform * decal_instance_get_transform(di) * scale_xform * uv_xform).affine_inverse();
store_transform(to_decal_xform, dd.xform);
Vector3 normal = xform.basis.get_axis(Vector3::AXIS_Y).normalized();
normal = p_camera_inverse_xform.basis.xform(normal); //camera is normalized, so fine
dd.normal[0] = normal.x;
dd.normal[1] = normal.y;
dd.normal[2] = normal.z;
dd.normal_fade = storage->decal_get_normal_fade(decal);
RID albedo_tex = storage->decal_get_texture(decal, RS::DECAL_TEXTURE_ALBEDO);
if (albedo_tex.is_valid()) {
Rect2 rect = storage->decal_atlas_get_texture_rect(albedo_tex);
dd.albedo_rect[0] = rect.position.x;
dd.albedo_rect[1] = rect.position.y;
dd.albedo_rect[2] = rect.size.x;
dd.albedo_rect[3] = rect.size.y;
} else {
dd.albedo_rect[0] = 0;
dd.albedo_rect[1] = 0;
dd.albedo_rect[2] = 0;
dd.albedo_rect[3] = 0;
}
RID normal_tex = storage->decal_get_texture(decal, RS::DECAL_TEXTURE_NORMAL);
RID emission_tex = storage->decal_get_texture(decal, RS::DECAL_TEXTURE_EMISSION);
if (normal_tex.is_valid()) {
Rect2 rect = storage->decal_atlas_get_texture_rect(normal_tex);
dd.normal_rect[0] = rect.position.x;
dd.normal_rect[1] = rect.position.y;
dd.normal_rect[2] = rect.size.x;
dd.normal_rect[3] = rect.size.y;
Basis normal_xform = p_camera_inverse_xform.basis * xform.basis.orthonormalized();
store_basis_3x4(normal_xform, dd.normal_xform);
//store normal xform
} else {
if (!emission_tex.is_valid()) {
continue; //no albedo, no emission, no decal.
}
dd.normal_rect[0] = 0;
dd.normal_rect[1] = 0;
dd.normal_rect[2] = 0;
dd.normal_rect[3] = 0;
}
RID orm_tex = storage->decal_get_texture(decal, RS::DECAL_TEXTURE_ORM);
if (orm_tex.is_valid()) {
Rect2 rect = storage->decal_atlas_get_texture_rect(orm_tex);
dd.orm_rect[0] = rect.position.x;
dd.orm_rect[1] = rect.position.y;
dd.orm_rect[2] = rect.size.x;
dd.orm_rect[3] = rect.size.y;
} else {
dd.orm_rect[0] = 0;
dd.orm_rect[1] = 0;
dd.orm_rect[2] = 0;
dd.orm_rect[3] = 0;
}
if (emission_tex.is_valid()) {
Rect2 rect = storage->decal_atlas_get_texture_rect(emission_tex);
dd.emission_rect[0] = rect.position.x;
dd.emission_rect[1] = rect.position.y;
dd.emission_rect[2] = rect.size.x;
dd.emission_rect[3] = rect.size.y;
} else {
dd.emission_rect[0] = 0;
dd.emission_rect[1] = 0;
dd.emission_rect[2] = 0;
dd.emission_rect[3] = 0;
}
Color modulate = storage->decal_get_modulate(decal);
dd.modulate[0] = modulate.r;
dd.modulate[1] = modulate.g;
dd.modulate[2] = modulate.b;
dd.modulate[3] = modulate.a * fade;
dd.emission_energy = storage->decal_get_emission_energy(decal) * fade;
dd.albedo_mix = storage->decal_get_albedo_mix(decal);
dd.mask = storage->decal_get_cull_mask(decal);
dd.upper_fade = storage->decal_get_upper_fade(decal);
dd.lower_fade = storage->decal_get_lower_fade(decal);
cluster_builder.add_decal(xform, decal_extents);
idx++;
}
if (idx > 0) {
RD::get_singleton()->buffer_update(scene_state.decal_buffer, 0, sizeof(DecalData) * idx, scene_state.decals, true);
}
}
void RasterizerSceneHighEndRD::_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_decal_cull_result, int p_decal_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) {
RenderBufferDataHighEnd *render_buffer = nullptr;
if (p_render_buffer.is_valid()) {
@@ -2042,6 +2193,7 @@ void RasterizerSceneHighEndRD::_render_scene(RID p_render_buffer, const Transfor
cluster_builder.begin(p_cam_transform.affine_inverse(), p_cam_projection); //prepare cluster
_setup_lights(p_light_cull_result, p_light_cull_count, p_cam_transform.affine_inverse(), p_shadow_atlas, using_shadows);
_setup_decals(p_decal_cull_result, p_decal_cull_count, p_cam_transform.affine_inverse());
_setup_reflections(p_reflection_probe_cull_result, p_reflection_probe_cull_count, p_cam_transform.affine_inverse(), p_environment);
_setup_gi_probes(p_gi_probe_cull_result, p_gi_probe_cull_count, p_cam_transform);
_setup_environment(p_environment, p_cam_projection, p_cam_transform, p_reflection_probe, p_reflection_probe.is_valid(), screen_pixel_size, p_shadow_atlas, !p_reflection_probe.is_valid(), p_default_bg_color, p_cam_projection.get_z_near(), p_cam_projection.get_z_far(), false);
@@ -2483,17 +2635,40 @@ void RasterizerSceneHighEndRD::_update_render_base_uniform_set() {
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 10;
u.type = RD::UNIFORM_TYPE_TEXTURE;
RID decal_atlas = storage->decal_atlas_get_texture();
u.ids.push_back(decal_atlas);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 11;
u.type = RD::UNIFORM_TYPE_TEXTURE;
RID decal_atlas = storage->decal_atlas_get_texture_srgb();
u.ids.push_back(decal_atlas);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 12;
u.type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.ids.push_back(scene_state.decal_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 13;
u.type = RD::UNIFORM_TYPE_TEXTURE;
u.ids.push_back(cluster_builder.get_cluster_texture());
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 11;
u.binding = 14;
u.type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.ids.push_back(cluster_builder.get_cluster_indices_buffer());
uniforms.push_back(u);
@@ -2501,7 +2676,7 @@ void RasterizerSceneHighEndRD::_update_render_base_uniform_set() {
{
RD::Uniform u;
u.binding = 12;
u.binding = 15;
u.type = RD::UNIFORM_TYPE_TEXTURE;
if (directional_shadow_get_texture().is_valid()) {
u.ids.push_back(directional_shadow_get_texture());
@@ -2722,6 +2897,13 @@ RasterizerSceneHighEndRD::RasterizerSceneHighEndRD(RasterizerStorageRD *p_storag
defines += "\n#define MAX_GI_PROBES " + itos(scene_state.max_gi_probes) + "\n";
}
{ //decals
scene_state.max_decals = MIN(1024 * 1024, uniform_max_size) / sizeof(DecalData); //1mb of decals
uint32_t decal_buffer_size = scene_state.max_decals * sizeof(DecalData);
scene_state.decals = memnew_arr(DecalData, scene_state.max_decals);
scene_state.decal_buffer = RD::get_singleton()->storage_buffer_create(decal_buffer_size);
}
Vector<String> shader_versions;
shader_versions.push_back("\n#define MODE_RENDER_DEPTH\n");
shader_versions.push_back("\n#define MODE_RENDER_DEPTH\n#define MODE_DUAL_PARABOLOID\n");
@@ -3001,10 +3183,12 @@ RasterizerSceneHighEndRD::~RasterizerSceneHighEndRD() {
RD::get_singleton()->free(scene_state.directional_light_buffer);
RD::get_singleton()->free(scene_state.light_buffer);
RD::get_singleton()->free(scene_state.reflection_buffer);
RD::get_singleton()->free(scene_state.decal_buffer);
memdelete_arr(scene_state.instances);
memdelete_arr(scene_state.gi_probes);
memdelete_arr(scene_state.directional_lights);
memdelete_arr(scene_state.lights);
memdelete_arr(scene_state.reflections);
memdelete_arr(scene_state.decals);
}
}