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[{"key": "dc.contributor.advisor", "value": "Sanna M\u00f6nk\u00f6l\u00e4", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Tuomo Rossi", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Paananen, Henrik", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2016-05-24T10:06:39Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2016-05-24T10:06:39Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2016", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1542033", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/49901", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ep\u00e4suora valaistus, kuten ymp\u00e4rist\u00f6n heijastukset, ovat t\u00e4rke\u00e4 osa uskottavaa tietokonegrafiikkaa. Tarvitaan kuitenkin fysikaalinen valaistusmalli, jotta ep\u00e4suoran valon vaikutus olisi realistinen. Vasta viime aikojen n\u00e4yt\u00f6nohjainten tehokkuuden kasvu on mahdollistanut fysikaalisen ep\u00e4suoran valaistuksen mallintamisen reaaliajassa. Koska ep\u00e4suoran valaistuksen laskeminen on eritt\u00e4in raskasta, joudutaan kuitenkin tekem\u00e4\u00e4n arviointia, jotta reaaliaikainen toteutus olisi mahdollista. T\u00e4ss\u00e4 tutkielmassa esitell\u00e4\u00e4n fysikaalisen valaistuksen perustaa ja annetaan esimerkkej\u00e4 reaaliaikaisista heijastusmenetelmist\u00e4. Lopuksi evaluoidaan kahta heijastustekniikkaa, ymp\u00e4rist\u00f6tutkaimia ja kuvapuskuriheijastuksia, fysikaalisen valaistuksen n\u00e4k\u00f6kulmasta. Evaluointi tapahtuu toteuttamalla tekniikat ja arvioimalla saatua lopputulosta uskottavuuden, toimivuuden ja suorituskyvyn kannalta. Huomattiin, ett\u00e4 usean tekniikan yhdisteleminen on tarpeen, sill\u00e4 eri tekniikat soveltuvat vain tietynlaisiin heijastuksiin. Lis\u00e4ksi tekniikoissa on useita ongelmakohtia, jotka rajoittavat niiden k\u00e4ytett\u00e4vyytt\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Indirect lighting, like reflections of the environment, have an important role in believable computer graphics. To make the indirect lighting realistic, a physically based lighting model is needed. Only as of lately, the modeling of physically based indirect lighting in real-time has been possible, due to the recent increase of GPU-power. As calculating the indirect lighting is expensive, approximation of the phenomenon is still needed to make real-time implementation possible. In this thesis we introduce the basis of physically based lighting and give examples of real-time reflection methods. Finally two reflection techniques, environment probes and screen space reflections, are evaluated from the physically based lighting point of view. The evaluation is carried out by implementing these techniques and assessing their plausibility and performance. It was discovered that combining several techniques is necessary, as each technique can only produce some particular kind of reflections. In addition it was found that the techniques have several problematic situations, which limit their usability.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Henrik Paananen (hejupaan) on 2016-05-24 10:06:37.537056. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2016-05-24T10:06:39Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201605242676.pdf: 19441964 bytes, checksum: c4fd45764c6042c2fe3b3f24b51af159 (MD5)\nlicense.html: 4813 bytes, checksum: 608da7732cbcf5919540f9f3d15b1c00 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2016-05-24T10:06:39Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201605242676.pdf: 19441964 bytes, checksum: c4fd45764c6042c2fe3b3f24b51af159 (MD5)\nlicense.html: 4813 bytes, checksum: 608da7732cbcf5919540f9f3d15b1c00 (MD5)\n Previous issue date: 2016", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (81 sivua)", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "reaaliaikainen grafiikka", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "fysikaalinen valaistus", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "heijastukset", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kaksisuuntainen heijastusjakaumafunktio", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kuvapuskuriheijastukset", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ymp\u00e4rist\u00f6tutkaimet", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Fysikaalinen valaistus ja reaaliaikaiset heijastukset", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, 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Technology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tietotekniikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Mathematical Information Technology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2016-05-24T10:06:40Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": null, "element": "contractresearch", 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