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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup collada
*/
#include <string>
#include "COLLADASWColor.h"
#include "COLLADASWLight.h"
#include "BLI_math.h"
#include "LightExporter.h"
#include "collada_internal.h"
template<class Functor>
void forEachLightObjectInExportSet(Scene *sce, Functor &f, LinkNode *export_set)
{
LinkNode *node;
for (node = export_set; node; node = node->next) {
Object *ob = (Object *)node->link;
if (ob->type == OB_LAMP && ob->data) {
f(ob);
}
}
}
LightsExporter::LightsExporter(COLLADASW::StreamWriter *sw, BCExportSettings &export_settings)
: COLLADASW::LibraryLights(sw), export_settings(export_settings)
{
}
void LightsExporter::exportLights(Scene *sce)
{
openLibrary();
forEachLightObjectInExportSet(sce, *this, this->export_settings.get_export_set());
closeLibrary();
}
void LightsExporter::operator()(Object *ob)
{
Light *la = (Light *)ob->data;
std::string la_id(get_light_id(ob));
std::string la_name(id_name(la));
COLLADASW::Color col(la->r * la->energy, la->g * la->energy, la->b * la->energy);
float d, constatt, linatt, quadatt;
d = la->dist;
constatt = 1.0f;
if (la->falloff_type == LA_FALLOFF_INVLINEAR) {
linatt = 1.0f / d;
quadatt = 0.0f;
}
else {
linatt = 0.0f;
quadatt = 1.0f / (d * d);
}
/* sun */
if (la->type == LA_SUN) {
COLLADASW::DirectionalLight cla(mSW, la_id, la_name);
cla.setColor(col, false, "color");
cla.setConstantAttenuation(constatt);
exportBlenderProfile(cla, la);
addLight(cla);
}
/* spot */
else if (la->type == LA_SPOT) {
COLLADASW::SpotLight cla(mSW, la_id, la_name);
cla.setColor(col, false, "color");
cla.setFallOffAngle(RAD2DEGF(la->spotsize), false, "fall_off_angle");
cla.setFallOffExponent(la->spotblend, false, "fall_off_exponent");
cla.setConstantAttenuation(constatt);
cla.setLinearAttenuation(linatt);
cla.setQuadraticAttenuation(quadatt);
exportBlenderProfile(cla, la);
addLight(cla);
}
/* lamp */
else if (la->type == LA_LOCAL) {
COLLADASW::PointLight cla(mSW, la_id, la_name);
cla.setColor(col, false, "color");
cla.setConstantAttenuation(constatt);
cla.setLinearAttenuation(linatt);
cla.setQuadraticAttenuation(quadatt);
exportBlenderProfile(cla, la);
addLight(cla);
}
/* area light is not supported
* it will be exported as a local lamp */
else {
COLLADASW::PointLight cla(mSW, la_id, la_name);
cla.setColor(col, false, "color");
cla.setConstantAttenuation(constatt);
cla.setLinearAttenuation(linatt);
cla.setQuadraticAttenuation(quadatt);
exportBlenderProfile(cla, la);
addLight(cla);
}
}
bool LightsExporter::exportBlenderProfile(COLLADASW::Light &cla, Light *la)
{
cla.addExtraTechniqueParameter("blender", "type", la->type);
cla.addExtraTechniqueParameter("blender", "flag", la->flag);
cla.addExtraTechniqueParameter("blender", "mode", la->mode);
cla.addExtraTechniqueParameter("blender", "gamma", la->k, "blender_gamma");
cla.addExtraTechniqueParameter("blender", "red", la->r);
cla.addExtraTechniqueParameter("blender", "green", la->g);
cla.addExtraTechniqueParameter("blender", "blue", la->b);
cla.addExtraTechniqueParameter("blender", "shadow_r", la->shdwr, "blender_shadow_r");
cla.addExtraTechniqueParameter("blender", "shadow_g", la->shdwg, "blender_shadow_g");
cla.addExtraTechniqueParameter("blender", "shadow_b", la->shdwb, "blender_shadow_b");
cla.addExtraTechniqueParameter("blender", "energy", la->energy, "blender_energy");
cla.addExtraTechniqueParameter("blender", "dist", la->dist, "blender_dist");
cla.addExtraTechniqueParameter("blender", "spotsize", RAD2DEGF(la->spotsize));
cla.addExtraTechniqueParameter("blender", "spotblend", la->spotblend);
cla.addExtraTechniqueParameter("blender", "att1", la->att1);
cla.addExtraTechniqueParameter("blender", "att2", la->att2);
/* \todo figure out how we can have falloff curve supported here */
cla.addExtraTechniqueParameter("blender", "falloff_type", la->falloff_type);
cla.addExtraTechniqueParameter("blender", "clipsta", la->clipsta);
cla.addExtraTechniqueParameter("blender", "clipend", la->clipend);
cla.addExtraTechniqueParameter("blender", "bias", la->bias);
cla.addExtraTechniqueParameter("blender", "soft", la->soft);
cla.addExtraTechniqueParameter("blender", "bufsize", la->bufsize);
cla.addExtraTechniqueParameter("blender", "samp", la->samp);
cla.addExtraTechniqueParameter("blender", "buffers", la->buffers);
cla.addExtraTechniqueParameter("blender", "area_shape", la->area_shape);
cla.addExtraTechniqueParameter("blender", "area_size", la->area_size);
cla.addExtraTechniqueParameter("blender", "area_sizey", la->area_sizey);
cla.addExtraTechniqueParameter("blender", "area_sizez", la->area_sizez);
return true;
}
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