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Diffstat (limited to 'intern/cycles/blender/blender_light.cpp')
| -rw-r--r-- | intern/cycles/blender/blender_light.cpp | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/intern/cycles/blender/blender_light.cpp b/intern/cycles/blender/blender_light.cpp new file mode 100644 index 00000000000..6f95821e31e --- /dev/null +++ b/intern/cycles/blender/blender_light.cpp @@ -0,0 +1,212 @@ + + +/* + * Copyright 2011-2013 Blender Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "render/light.h" + +#include "blender/blender_sync.h" +#include "blender/blender_util.h" + +#include "util/util_hash.h" + +CCL_NAMESPACE_BEGIN + +void BlenderSync::sync_light(BL::Object &b_parent, + int persistent_id[OBJECT_PERSISTENT_ID_SIZE], + BL::Object &b_ob, + BL::Object &b_ob_instance, + int random_id, + Transform &tfm, + bool *use_portal) +{ + /* test if we need to sync */ + Light *light; + ObjectKey key(b_parent, persistent_id, b_ob_instance, false); + BL::Light b_light(b_ob.data()); + + /* Update if either object or light data changed. */ + if (!light_map.add_or_update(&light, b_ob, b_parent, key)) { + Shader *shader; + if (!shader_map.add_or_update(&shader, b_light)) { + if (light->is_portal) + *use_portal = true; + return; + } + } + + /* type */ + switch (b_light.type()) { + case BL::Light::type_POINT: { + BL::PointLight b_point_light(b_light); + light->size = b_point_light.shadow_soft_size(); + light->type = LIGHT_POINT; + break; + } + case BL::Light::type_SPOT: { + BL::SpotLight b_spot_light(b_light); + light->size = b_spot_light.shadow_soft_size(); + light->type = LIGHT_SPOT; + light->spot_angle = b_spot_light.spot_size(); + light->spot_smooth = b_spot_light.spot_blend(); + break; + } + /* Hemi were removed from 2.8 */ + // case BL::Light::type_HEMI: { + // light->type = LIGHT_DISTANT; + // light->size = 0.0f; + // break; + // } + case BL::Light::type_SUN: { + BL::SunLight b_sun_light(b_light); + light->angle = b_sun_light.angle(); + light->type = LIGHT_DISTANT; + break; + } + case BL::Light::type_AREA: { + BL::AreaLight b_area_light(b_light); + light->size = 1.0f; + light->axisu = transform_get_column(&tfm, 0); + light->axisv = transform_get_column(&tfm, 1); + light->sizeu = b_area_light.size(); + switch (b_area_light.shape()) { + case BL::AreaLight::shape_SQUARE: + light->sizev = light->sizeu; + light->round = false; + break; + case BL::AreaLight::shape_RECTANGLE: + light->sizev = b_area_light.size_y(); + light->round = false; + break; + case BL::AreaLight::shape_DISK: + light->sizev = light->sizeu; + light->round = true; + break; + case BL::AreaLight::shape_ELLIPSE: + light->sizev = b_area_light.size_y(); + light->round = true; + break; + } + light->type = LIGHT_AREA; + break; + } + } + + /* strength */ + light->strength = get_float3(b_light.color()); + light->strength *= BL::PointLight(b_light).energy(); + + /* location and (inverted!) direction */ + light->co = transform_get_column(&tfm, 3); + light->dir = -transform_get_column(&tfm, 2); + light->tfm = tfm; + + /* shader */ + vector<Shader *> used_shaders; + find_shader(b_light, used_shaders, scene->default_light); + light->shader = used_shaders[0]; + + /* shadow */ + PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles"); + PointerRNA clight = RNA_pointer_get(&b_light.ptr, "cycles"); + light->cast_shadow = get_boolean(clight, "cast_shadow"); + light->use_mis = get_boolean(clight, "use_multiple_importance_sampling"); + + int samples = get_int(clight, "samples"); + if (get_boolean(cscene, "use_square_samples")) + light->samples = samples * samples; + else + light->samples = samples; + + light->max_bounces = get_int(clight, "max_bounces"); + + if (b_ob != b_ob_instance) { + light->random_id = random_id; + } + else { + light->random_id = hash_uint2(hash_string(b_ob.name().c_str()), 0); + } + + if (light->type == LIGHT_AREA) + light->is_portal = get_boolean(clight, "is_portal"); + else + light->is_portal = false; + + if (light->is_portal) + *use_portal = true; + + /* visibility */ + uint visibility = object_ray_visibility(b_ob); + light->use_diffuse = (visibility & PATH_RAY_DIFFUSE) != 0; + light->use_glossy = (visibility & PATH_RAY_GLOSSY) != 0; + light->use_transmission = (visibility & PATH_RAY_TRANSMIT) != 0; + light->use_scatter = (visibility & PATH_RAY_VOLUME_SCATTER) != 0; + + /* tag */ + light->tag_update(scene); +} + +void BlenderSync::sync_background_light(BL::SpaceView3D &b_v3d, bool use_portal) +{ + BL::World b_world = b_scene.world(); + + if (b_world) { + PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles"); + PointerRNA cworld = RNA_pointer_get(&b_world.ptr, "cycles"); + + enum SamplingMethod { SAMPLING_NONE = 0, SAMPLING_AUTOMATIC, SAMPLING_MANUAL, SAMPLING_NUM }; + int sampling_method = get_enum(cworld, "sampling_method", SAMPLING_NUM, SAMPLING_AUTOMATIC); + bool sample_as_light = (sampling_method != SAMPLING_NONE); + + if (sample_as_light || use_portal) { + /* test if we need to sync */ + Light *light; + ObjectKey key(b_world, 0, b_world, false); + + if (light_map.add_or_update(&light, b_world, b_world, key) || world_recalc || + b_world.ptr.data != world_map) { + light->type = LIGHT_BACKGROUND; + if (sampling_method == SAMPLING_MANUAL) { + light->map_resolution = get_int(cworld, "sample_map_resolution"); + } + else { + light->map_resolution = 0; + } + light->shader = scene->default_background; + light->use_mis = sample_as_light; + light->max_bounces = get_int(cworld, "max_bounces"); + + /* force enable light again when world is resynced */ + light->is_enabled = true; + + int samples = get_int(cworld, "samples"); + if (get_boolean(cscene, "use_square_samples")) + light->samples = samples * samples; + else + light->samples = samples; + + light->tag_update(scene); + light_map.set_recalc(b_world); + } + } + } + + world_map = b_world.ptr.data; + world_recalc = false; + viewport_parameters = BlenderViewportParameters(b_v3d); +} + +CCL_NAMESPACE_END |