befb9d99f8
The check on the transformation introduced in rBb313525c1bd0 to fix T88515 would sometimes prevent to update the light if the Blender object changed. To fix this, reverse the order in which the checks happen so that we do not shortcuit the object change check.
219 lines
7.0 KiB
C++
219 lines
7.0 KiB
C++
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/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "render/light.h"
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#include "blender/blender_sync.h"
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#include "blender/blender_util.h"
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#include "util/util_hash.h"
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CCL_NAMESPACE_BEGIN
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void BlenderSync::sync_light(BL::Object &b_parent,
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int persistent_id[OBJECT_PERSISTENT_ID_SIZE],
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BL::Object &b_ob,
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BL::Object &b_ob_instance,
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int random_id,
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Transform &tfm,
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bool *use_portal)
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{
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/* test if we need to sync */
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ObjectKey key(b_parent, persistent_id, b_ob_instance, false);
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BL::Light b_light(b_ob.data());
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Light *light = light_map.find(key);
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/* Check if the transform was modified, in case a linked collection is moved we do not get a
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* specific depsgraph update (T88515). This also mimics the behavior for Objects. */
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const bool tfm_updated = (light && light->get_tfm() != tfm);
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/* Update if either object or light data changed. */
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if (!light_map.add_or_update(&light, b_ob, b_parent, key) && !tfm_updated) {
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Shader *shader;
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if (!shader_map.add_or_update(&shader, b_light)) {
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if (light->get_is_portal())
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*use_portal = true;
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return;
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}
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}
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/* type */
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switch (b_light.type()) {
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case BL::Light::type_POINT: {
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BL::PointLight b_point_light(b_light);
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light->set_size(b_point_light.shadow_soft_size());
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light->set_light_type(LIGHT_POINT);
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break;
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}
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case BL::Light::type_SPOT: {
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BL::SpotLight b_spot_light(b_light);
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light->set_size(b_spot_light.shadow_soft_size());
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light->set_light_type(LIGHT_SPOT);
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light->set_spot_angle(b_spot_light.spot_size());
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light->set_spot_smooth(b_spot_light.spot_blend());
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break;
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}
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/* Hemi were removed from 2.8 */
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// case BL::Light::type_HEMI: {
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// light->type = LIGHT_DISTANT;
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// light->size = 0.0f;
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// break;
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// }
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case BL::Light::type_SUN: {
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BL::SunLight b_sun_light(b_light);
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light->set_angle(b_sun_light.angle());
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light->set_light_type(LIGHT_DISTANT);
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break;
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}
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case BL::Light::type_AREA: {
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BL::AreaLight b_area_light(b_light);
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light->set_size(1.0f);
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light->set_axisu(transform_get_column(&tfm, 0));
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light->set_axisv(transform_get_column(&tfm, 1));
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light->set_sizeu(b_area_light.size());
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light->set_spread(b_area_light.spread());
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switch (b_area_light.shape()) {
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case BL::AreaLight::shape_SQUARE:
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light->set_sizev(light->get_sizeu());
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light->set_round(false);
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break;
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case BL::AreaLight::shape_RECTANGLE:
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light->set_sizev(b_area_light.size_y());
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light->set_round(false);
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break;
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case BL::AreaLight::shape_DISK:
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light->set_sizev(light->get_sizeu());
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light->set_round(true);
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break;
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case BL::AreaLight::shape_ELLIPSE:
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light->set_sizev(b_area_light.size_y());
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light->set_round(true);
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break;
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}
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light->set_light_type(LIGHT_AREA);
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break;
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}
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}
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/* strength */
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float3 strength = get_float3(b_light.color()) * BL::PointLight(b_light).energy();
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light->set_strength(strength);
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/* location and (inverted!) direction */
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light->set_co(transform_get_column(&tfm, 3));
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light->set_dir(-transform_get_column(&tfm, 2));
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light->set_tfm(tfm);
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/* shader */
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array<Node *> used_shaders;
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find_shader(b_light, used_shaders, scene->default_light);
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light->set_shader(static_cast<Shader *>(used_shaders[0]));
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/* shadow */
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PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles");
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PointerRNA clight = RNA_pointer_get(&b_light.ptr, "cycles");
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light->set_cast_shadow(get_boolean(clight, "cast_shadow"));
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light->set_use_mis(get_boolean(clight, "use_multiple_importance_sampling"));
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int samples = get_int(clight, "samples");
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if (get_boolean(cscene, "use_square_samples"))
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light->set_samples(samples * samples);
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else
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light->set_samples(samples);
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light->set_max_bounces(get_int(clight, "max_bounces"));
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if (b_ob != b_ob_instance) {
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light->set_random_id(random_id);
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}
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else {
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light->set_random_id(hash_uint2(hash_string(b_ob.name().c_str()), 0));
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}
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if (light->get_light_type() == LIGHT_AREA)
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light->set_is_portal(get_boolean(clight, "is_portal"));
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else
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light->set_is_portal(false);
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if (light->get_is_portal())
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*use_portal = true;
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/* visibility */
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uint visibility = object_ray_visibility(b_ob);
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light->set_use_diffuse((visibility & PATH_RAY_DIFFUSE) != 0);
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light->set_use_glossy((visibility & PATH_RAY_GLOSSY) != 0);
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light->set_use_transmission((visibility & PATH_RAY_TRANSMIT) != 0);
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light->set_use_scatter((visibility & PATH_RAY_VOLUME_SCATTER) != 0);
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/* tag */
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light->tag_update(scene);
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}
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void BlenderSync::sync_background_light(BL::SpaceView3D &b_v3d, bool use_portal)
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{
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BL::World b_world = b_scene.world();
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if (b_world) {
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PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles");
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PointerRNA cworld = RNA_pointer_get(&b_world.ptr, "cycles");
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enum SamplingMethod { SAMPLING_NONE = 0, SAMPLING_AUTOMATIC, SAMPLING_MANUAL, SAMPLING_NUM };
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int sampling_method = get_enum(cworld, "sampling_method", SAMPLING_NUM, SAMPLING_AUTOMATIC);
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bool sample_as_light = (sampling_method != SAMPLING_NONE);
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if (sample_as_light || use_portal) {
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/* test if we need to sync */
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Light *light;
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ObjectKey key(b_world, 0, b_world, false);
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if (light_map.add_or_update(&light, b_world, b_world, key) || world_recalc ||
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b_world.ptr.data != world_map) {
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light->set_light_type(LIGHT_BACKGROUND);
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if (sampling_method == SAMPLING_MANUAL) {
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light->set_map_resolution(get_int(cworld, "sample_map_resolution"));
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}
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else {
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light->set_map_resolution(0);
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}
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light->set_shader(scene->default_background);
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light->set_use_mis(sample_as_light);
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light->set_max_bounces(get_int(cworld, "max_bounces"));
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/* force enable light again when world is resynced */
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light->set_is_enabled(true);
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int samples = get_int(cworld, "samples");
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if (get_boolean(cscene, "use_square_samples"))
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light->set_samples(samples * samples);
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else
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light->set_samples(samples);
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light->tag_update(scene);
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light_map.set_recalc(b_world);
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}
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}
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}
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world_map = b_world.ptr.data;
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world_recalc = false;
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viewport_parameters = BlenderViewportParameters(b_v3d);
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}
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CCL_NAMESPACE_END
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