61 lines
1.2 KiB
C++
61 lines
1.2 KiB
C++
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#include <mitsuba/render/texture.h>
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MTS_NAMESPACE_BEGIN
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/**
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* Grid texture
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*/
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class GridTexture : public Texture {
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public:
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GridTexture(const Properties &props) : Texture(props) {
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m_reflectance = props.getSpectrum("reflectance", Spectrum(.5f));
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m_width = props.getFloat("width", .01f);
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}
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GridTexture(Stream *stream, InstanceManager *manager)
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: Texture(stream, manager) {
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m_reflectance = Spectrum(stream);
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}
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void serialize(Stream *stream, InstanceManager *manager) const {
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Texture::serialize(stream, manager);
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m_reflectance.serialize(stream);
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}
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Spectrum getValue(const Intersection &its) const {
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Float x = its.uv.x - (int) its.uv.x;
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Float y = its.uv.y - (int) its.uv.y;
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if (x > .5)
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x-=1;
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if (y > .5)
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y-=1;
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if (std::abs(x) < m_width || std::abs(y) < m_width)
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return Spectrum(0.0f);
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else
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return m_reflectance;
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}
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bool usesRayDifferentials() const {
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return false;
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}
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Spectrum getAverage() const {
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return m_reflectance;
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}
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std::string toString() const {
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return "GridTexture[]";
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}
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MTS_DECLARE_CLASS()
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protected:
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Spectrum m_reflectance;
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Float m_width;
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};
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MTS_IMPLEMENT_CLASS_S(GridTexture, false, Texture)
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MTS_EXPORT_PLUGIN(GridTexture, "Grid texture");
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MTS_NAMESPACE_END
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