FGFS-4.1/OpenSceneGraph
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Changed the support for anisotropic filtering in osg::Texture so that it

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is now controlled via the setMaxAnisotropy(float) method, and is set up
independently for the mag filter mode, which it previously was done.
This commit is contained in:
Robert Osfield
2002-08-07 15:52:24 +00:00
parent 0bee7dd3d9
commit b9b013e15b
7 changed files with 69 additions and 50 deletions
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15
include/osg/Texture
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@@ -165,7 +165,6 @@ class SG_EXPORT Texture : public StateAttribute
NEAREST = GL_NEAREST,
NEAREST_MIPMAP_LINEAR = GL_NEAREST_MIPMAP_LINEAR,
NEAREST_MIPMAP_NEAREST = GL_NEAREST_MIPMAP_NEAREST,
ANISOTROPIC = GL_TEXTURE_MAX_ANISOTROPY_EXT
};
@@ -175,6 +174,15 @@ class SG_EXPORT Texture : public StateAttribute
/** Get the texture filter mode.*/
const FilterMode getFilter(const FilterParameter which) const;
/** Set the maximum anisotropy value, default value is 1.0 for
* no anisotropic filtering. If hardware does not support anisotropic
* filtering then normal filtering is used, equivilant to a max anisotropy value of 1.0.
* valid range is 1.0f upwards. The maximum value depends on the graphics
* system being used.*/
inline void setMaxAnisotropy(float anis);
/** Get the maximum anisotropy value.*/
inline float getMaxAnisotropy() const { return _maxAnisotropy; }
enum InternalFormatMode {
USE_IMAGE_DATA_FORMAT,
@@ -361,8 +369,9 @@ class SG_EXPORT Texture : public StateAttribute
WrapMode _wrap_t;
WrapMode _wrap_r;
FilterMode _min_filter;
FilterMode _mag_filter;
FilterMode _min_filter;
FilterMode _mag_filter;
float _maxAnisotropy;
// true if apply tex parameters required.
mutable bool _texParamtersDirty;