267 lines
11 KiB
XML
267 lines
11 KiB
XML
<?xml version='1.0' encoding='utf-8'?>
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<!-- Stylesheet to upgrade pre-0.3.0 scenes -->
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<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
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<xsl:output method="xml" indent="yes" encoding="utf-8"/>
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<xsl:preserve-space elements="*"/>
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<xsl:template match="scene">
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<scene>
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<xsl:attribute name="version">0.3.0</xsl:attribute>
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<xsl:apply-templates select="node()"/>
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</scene>
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</xsl:template>
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<!-- Replace the old version of the lookAt tag -->
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<xsl:template match="lookAt[@ox]">
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<scale x="-1"/>
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<lookAt>
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<xsl:attribute name="origin">
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<xsl:value-of select="@ox"/>
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<xsl:text>, </xsl:text>
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<xsl:value-of select="@oy"/>
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<xsl:text>, </xsl:text>
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<xsl:value-of select="@oz"/>
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</xsl:attribute>
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<xsl:attribute name="target">
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<xsl:value-of select="@tx"/>
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<xsl:text>, </xsl:text>
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<xsl:value-of select="@ty"/>
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<xsl:text>, </xsl:text>
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<xsl:value-of select="@tz"/>
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</xsl:attribute>
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<xsl:if test="@ux">
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<xsl:attribute name="up">
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<xsl:value-of select="@ux"/>
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<xsl:text>, </xsl:text>
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<xsl:value-of select="@uy"/>
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<xsl:text>, </xsl:text>
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<xsl:value-of select="@uz"/>
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</xsl:attribute>
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</xsl:if>
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</lookAt>
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</xsl:template>
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<xsl:template match="shape">
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<xsl:copy>
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<xsl:apply-templates select="@*|node()"/>
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<!-- The vertical component of OBJ texture coordinates is now
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flipped, which seems to be the standard behavior. Undo
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this change for consistency in old scenes. -->
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<xsl:if test="@type='obj'">
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<boolean name="flipTexCoords" value="false"/>
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</xsl:if>
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<!-- Apply a diffuse material to shapes that don't have any media or BSDFs -->
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<xsl:if test="not(bsdf) and not(ref) and not(medium) and not(subsurface)">
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<bsdf type="diffuse"/>
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</xsl:if>
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</xsl:copy>
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</xsl:template>
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<!-- There are no more 'diffuseAmount' or 'specularAmount' parameters in
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the microfacet/phong/ward plugins, and the default values have changed -->
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<xsl:template match="bsdf[@type='microfacet' or @type='phong' or @type='ward']">
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<xsl:variable name="diffuseAmount">
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<xsl:choose>
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<xsl:when test="float[@name='diffuseAmount']">
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<xsl:value-of select="float[@name='diffuseAmount']/@value"/>
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</xsl:when>
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<xsl:otherwise>1.0</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<xsl:variable name="specularAmount">
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<xsl:choose>
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<xsl:when test="float[@name='specularAmount']">
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<xsl:value-of select="float[@name='specularAmount']/@value"/>
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</xsl:when>
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<xsl:otherwise>1.0</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<xsl:variable name="specularReflectance">
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<xsl:choose>
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<xsl:when test="@type='microfacet'">1.0</xsl:when>
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<xsl:when test="@type='phong'">0.2</xsl:when>
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<xsl:when test="@type='ward'">0.2</xsl:when>
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</xsl:choose>
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</xsl:variable>
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<xsl:variable name="diffuseReflectance">
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<xsl:choose>
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<xsl:when test="@type='microfacet'">0.0</xsl:when>
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<xsl:when test="@type='phong'">0.5</xsl:when>
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<xsl:when test="@type='ward'">0.5</xsl:when>
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</xsl:choose>
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</xsl:variable>
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<bsdf>
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<xsl:apply-templates select="@*"/>
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<xsl:choose>
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<xsl:when test="node()[@name='diffuseReflectance']">
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<xsl:apply-templates select="node()[@name='diffuseReflectance']" mode="scaled">
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<xsl:with-param name="scale" select="$diffuseAmount"/>
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</xsl:apply-templates>
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</xsl:when>
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<xsl:otherwise>
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<spectrum name="diffuseReflectance" value="{number($diffuseAmount)*number($diffuseReflectance)}"/>
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</xsl:otherwise>
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</xsl:choose>
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<xsl:choose>
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<xsl:when test="node()[@name='specularReflectance']">
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<xsl:apply-templates select="node()[@name='specularReflectance']" mode="scaled">
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<xsl:with-param name="scale" select="$specularAmount"/>
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</xsl:apply-templates>
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</xsl:when>
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<xsl:otherwise>
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<spectrum name="specularReflectance" value="{number($specularAmount)*number($specularReflectance)}"/>
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</xsl:otherwise>
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</xsl:choose>
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<xsl:apply-templates select="node()[@name!='specularReflectance' and @name!='diffuseReflectance' and @name!='diffuseAmount' and @name!='specularAmount']"/>
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</bsdf>
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</xsl:template>
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<xsl:template match="ref|texture|rgb|srgb|spectrum|blackbody" mode="scaled">
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<xsl:param name="scale"/>
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<xsl:choose>
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<xsl:when test="number($scale)!=1">
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<texture type="scale">
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<xsl:if test="@name">
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<xsl:attribute name="name">
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<xsl:value-of select="@name"/>
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</xsl:attribute>
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</xsl:if>
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<float name="scale" value="{$scale}"/>
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<xsl:choose>
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<xsl:when test="texture|ref">
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<xsl:copy>
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<xsl:attribute name="name">value</xsl:attribute>
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<xsl:apply-templates select="@*[local-name() != 'name']|node()"/>
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</xsl:copy>
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</xsl:when>
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<xsl:otherwise>
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<xsl:copy>
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<xsl:attribute name="name">value</xsl:attribute>
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<xsl:apply-templates select="@*[local-name() != 'name']|node()"/>
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</xsl:copy>
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</xsl:otherwise>
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</xsl:choose>
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</texture>
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</xsl:when>
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<xsl:otherwise>
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<xsl:copy>
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<xsl:apply-templates select="@*|node()"/>
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</xsl:copy>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<!-- Update the parameters of the sphere plugin -->
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<xsl:template match="shape[@type='sphere']/boolean[@name='inverted']/@name">
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<xsl:attribute name="name">flipNormals</xsl:attribute>
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</xsl:template>
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<!-- Update the parameters of the cylinder plugin -->
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<xsl:template match="shape[@type='cylinder']/point[@name='p1']/@name">
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<xsl:attribute name="name">p0</xsl:attribute>
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</xsl:template>
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<xsl:template match="shape[@type='cylinder']/point[@name='p2']/@name">
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<xsl:attribute name="name">p1</xsl:attribute>
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</xsl:template>
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<!-- Update the parameters of the checkerboard plugin -->
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<xsl:template match="texture[@type='checkerboard']/spectrum[@name='brightColor']/@name">
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<xsl:attribute name="name">color0</xsl:attribute>
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</xsl:template>
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<xsl:template match="texture[@type='checkerboard']/spectrum[@name='darkColor']/@name">
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<xsl:attribute name="name">color1</xsl:attribute>
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</xsl:template>
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<!-- Update the parameters of the gridtexture plugin -->
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<xsl:template match="texture[@type='gridtexture']/spectrum[@name='brightColor']/@name">
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<xsl:attribute name="name">color0</xsl:attribute>
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</xsl:template>
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<xsl:template match="texture[@type='gridtexture']/spectrum[@name='darkColor']/@name">
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<xsl:attribute name="name">color1</xsl:attribute>
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</xsl:template>
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<!-- Update the name of the lambertian plugin -->
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<xsl:template match="bsdf[@type='lambertian']/@type">
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<xsl:attribute name="type">diffuse</xsl:attribute>
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</xsl:template>
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<!-- Update the parameters of the ward plugin -->
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<xsl:template match="bsdf[@type='ward']/float[@name='alphaX']/@name">
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<xsl:attribute name="name">alphaU</xsl:attribute>
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</xsl:template>
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<xsl:template match="bsdf[@type='ward']/float[@name='alphaY']/@name">
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<xsl:attribute name="name">alphaV</xsl:attribute>
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</xsl:template>
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<!-- Update the name of the microfacet plugin -->
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<xsl:template match="bsdf[@type='microfacet']/@type">
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<xsl:attribute name="type">roughplastic</xsl:attribute>
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</xsl:template>
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<xsl:template match="bsdf[@type='microfacet']/float[@name='alphaB']/@name">
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<xsl:attribute name="name">alpha</xsl:attribute>
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</xsl:template>
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<xsl:template match="float[@name='sizeMultiplier']/@name">
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<xsl:attribute name="name">densityMultiplier</xsl:attribute>
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</xsl:template>
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<!-- There is no more 'mirror' plugin; replace with smooth chrome -->
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<xsl:template match="bsdf[@type='mirror']/@type">
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<xsl:attribute name="type">conductor</xsl:attribute>
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</xsl:template>
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<xsl:template match="bsdf[@type='mirror']">
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<xsl:copy>
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<xsl:apply-templates select="@*|node()"/>
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<string name="material" value="Cr"/>
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</xsl:copy>
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</xsl:template>
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<!-- Update the name of the roughmetal plugin -->
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<xsl:template match="bsdf[@type='roughmetal']/@type">
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<xsl:attribute name="type">roughconductor</xsl:attribute>
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</xsl:template>
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<xsl:template match="bsdf[@type='roughmetal']/float[@name='alphaB']/@name">
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<xsl:attribute name="name">alpha</xsl:attribute>
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</xsl:template>
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<xsl:template match="bsdf[@type='roughmetal']/float[@name='ior']/@name">
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<xsl:attribute name="name">eta</xsl:attribute>
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</xsl:template>
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<!-- Update the name of the roughglass plugin -->
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<xsl:template match="bsdf[@type='roughglass']/@type">
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<xsl:attribute name="type">roughdielectric</xsl:attribute>
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</xsl:template>
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<xsl:template match="bsdf[@type='roughglass']/float[@name='alphaB']/@name">
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<xsl:attribute name="name">alpha</xsl:attribute>
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</xsl:template>
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<!-- Update the name of the composite plugin -->
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<xsl:template match="bsdf[@type='composite']/@type">
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<xsl:attribute name="type">mixturebsdf</xsl:attribute>
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</xsl:template>
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<!-- Update the name of the exrtexture plugin -->
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<xsl:template match="texture[@type='exrtexture']/@type">
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<xsl:attribute name="type">bitmap</xsl:attribute>
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</xsl:template>
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<!-- Update the name of the ldrtexture plugin -->
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<xsl:template match="texture[@type='ldrtexture']/@type">
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<xsl:attribute name="type">bitmap</xsl:attribute>
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</xsl:template>
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<!-- Default copy rule -->
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<xsl:template match="@*|node()">
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<xsl:copy>
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<xsl:apply-templates select="@*|node()"/>
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</xsl:copy>
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</xsl:template>
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</xsl:stylesheet>
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