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Split up texture filtering properties of SMaterialLayer into MinFilter and MagFilter

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You can now set the filter used when scaling textures down and the filter used when scaling textures up separately.
This commit is contained in:
Gregor Parzefall 2023-06-23 13:58:50 +02:00 committed by sfan5
parent 9e0189019e
commit 5ececc7d29
10 changed files with 128 additions and 101 deletions
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8
include/EMaterialFlags.h
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@ -37,11 +37,11 @@ namespace video
//! Corresponds to SMaterial::FrontfaceCulling.
EMF_FRONT_FACE_CULLING = 0x80,
//! Corresponds to SMaterialLayer::BilinearFilter.
EMF_BILINEAR_FILTER = 0x100,
//! Corresponds to SMaterialLayer::MinFilter.
EMF_MIN_FILTER = 0x100,
//! Corresponds to SMaterialLayer::TrilinearFilter.
EMF_TRILINEAR_FILTER = 0x200,
//! Corresponds to SMaterialLayer::MagFilter.
EMF_MAG_FILTER = 0x200,
//! Corresponds to SMaterialLayer::AnisotropicFilter.
EMF_ANISOTROPIC_FILTER = 0x400,

1
include/SMaterial.h
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@ -426,7 +426,6 @@ namespace video
f32 PolygonOffsetSlopeScale;
//! Draw as wireframe or filled triangles? Default: false
/** The user can access a material flag using \code material.Wireframe = true; \endcode */
bool Wireframe:1;
//! Draw as point cloud or filled triangles? Default: false

54
include/SMaterialLayer.h
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@ -43,6 +43,30 @@ namespace video
"texture_clamp_mirror_clamp_to_edge",
"texture_clamp_mirror_clamp_to_border", 0};
//! Texture minification filter.
/** Used when scaling textures down. */
enum E_TEXTURE_MIN_FILTER {
//! Nearest-neighbor interpolation.
ETMINF_NEAREST = 0,
//! Linear interpolation.
ETMINF_BILINEAR,
//! Linear interpolation across mipmaps.
/** Is equivalent to ETMINF_BILINEAR if mipmaps are disabled.
Only available as a minification filter since mipmaps are only used
when scaling down. */
ETMINF_TRILINEAR,
};
//! Texture magnification filter.
/** Used when scaling textures up. */
enum E_TEXTURE_MAG_FILTER {
//! Nearest-neighbor interpolation.
ETMAGF_NEAREST = 0,
//! Linear interpolation.
ETMAGF_BILINEAR,
};
//! Struct for holding material parameters which exist per texture layer
// Note for implementors: Serialization is in CNullDriver
class SMaterialLayer
@ -50,7 +74,7 @@ namespace video
public:
//! Default constructor
SMaterialLayer() : Texture(0), TextureWrapU(ETC_REPEAT), TextureWrapV(ETC_REPEAT), TextureWrapW(ETC_REPEAT),
BilinearFilter(true), TrilinearFilter(false), AnisotropicFilter(0), LODBias(0), TextureMatrix(0)
MinFilter(ETMINF_BILINEAR), MagFilter(ETMAGF_BILINEAR), AnisotropicFilter(0), LODBias(0), TextureMatrix(0)
{
}
@ -104,8 +128,8 @@ namespace video
TextureWrapU = other.TextureWrapU;
TextureWrapV = other.TextureWrapV;
TextureWrapW = other.TextureWrapW;
BilinearFilter = other.BilinearFilter;
TrilinearFilter = other.TrilinearFilter;
MinFilter = other.MinFilter;
MagFilter = other.MagFilter;
AnisotropicFilter = other.AnisotropicFilter;
LODBias = other.LODBias;
@ -157,8 +181,8 @@ namespace video
TextureWrapU != b.TextureWrapU ||
TextureWrapV != b.TextureWrapV ||
TextureWrapW != b.TextureWrapW ||
BilinearFilter != b.BilinearFilter ||
TrilinearFilter != b.TrilinearFilter ||
MinFilter != b.MinFilter ||
MagFilter != b.MagFilter ||
AnisotropicFilter != b.AnisotropicFilter ||
LODBias != b.LODBias;
if (different)
@ -184,13 +208,11 @@ namespace video
u8 TextureWrapV:4;
u8 TextureWrapW:4;
//! Is bilinear filtering enabled? Default: true
bool BilinearFilter:1;
//! Minification (downscaling) filter
E_TEXTURE_MIN_FILTER MinFilter;
//! Is trilinear filtering enabled? Default: false
/** If the trilinear filter flag is enabled,
the bilinear filtering flag is ignored. */
bool TrilinearFilter:1;
//! Magnification (upscaling) filter
E_TEXTURE_MAG_FILTER MagFilter;
//! Is anisotropic filtering enabled? Default: 0, disabled
/** In Irrlicht you can use anisotropic texture filtering
@ -208,6 +230,16 @@ namespace video
if the value is positive. */
s8 LODBias;
//! Sets the MinFilter, MagFilter and AnisotropicFilter properties according
//! to the three relevant boolean values found in the Minetest settings.
/** The value of `trilinear` takes precedence over the value of `bilinear`. */
void setFiltersMinetest(bool bilinear, bool trilinear, bool anisotropic) {
MinFilter = trilinear ? ETMINF_TRILINEAR :
(bilinear ? ETMINF_BILINEAR : ETMINF_NEAREST);
MagFilter = (trilinear || bilinear) ? ETMAGF_BILINEAR : ETMAGF_NEAREST;
AnisotropicFilter = anisotropic ? 0xFF : 0;
}
private:
friend class SMaterial;

8
include/SOverrideMaterial.h
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@ -104,21 +104,21 @@ namespace video
case EMF_ZWRITE_ENABLE: material.ZWriteEnable = Material.ZWriteEnable; break;
case EMF_BACK_FACE_CULLING: material.BackfaceCulling = Material.BackfaceCulling; break;
case EMF_FRONT_FACE_CULLING: material.FrontfaceCulling = Material.FrontfaceCulling; break;
case EMF_BILINEAR_FILTER:
case EMF_MIN_FILTER:
for ( u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
{
if ( EnableLayerFlags[i] )
{
material.TextureLayer[i].BilinearFilter = Material.TextureLayer[i].BilinearFilter;
material.TextureLayer[i].MinFilter = Material.TextureLayer[i].MinFilter;
}
}
break;
case EMF_TRILINEAR_FILTER:
case EMF_MAG_FILTER:
for ( u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
{
if ( EnableLayerFlags[i] )
{
material.TextureLayer[i].TrilinearFilter = Material.TextureLayer[i].TrilinearFilter;
material.TextureLayer[i].MagFilter = Material.TextureLayer[i].MagFilter;
}
}
break;

14
source/Irrlicht/CNullDriver.cpp
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@ -102,13 +102,13 @@ CNullDriver::CNullDriver(io::IFileSystem* io, const core::dimension2d<u32>& scre
InitMaterial2D.ZWriteEnable = video::EZW_OFF;
InitMaterial2D.ZBuffer = video::ECFN_DISABLED;
InitMaterial2D.UseMipMaps = false;
for (u32 i=0; i<video::MATERIAL_MAX_TEXTURES; ++i)
{
InitMaterial2D.TextureLayer[i].BilinearFilter=false;
InitMaterial2D.TextureLayer[i].TextureWrapU=video::ETC_REPEAT;
InitMaterial2D.TextureLayer[i].TextureWrapV=video::ETC_REPEAT;
InitMaterial2D.TextureLayer[i].TextureWrapW = video::ETC_REPEAT;
}
InitMaterial2D.forEachTexture([] (auto &tex) {
tex.MinFilter = video::ETMINF_NEAREST;
tex.MagFilter = video::ETMAGF_NEAREST;
tex.TextureWrapU = video::ETC_REPEAT;
tex.TextureWrapV = video::ETC_REPEAT;
tex.TextureWrapW = video::ETC_REPEAT;
});
OverrideMaterial2D = InitMaterial2D;
}

31
source/Irrlicht/COGLES2Driver.cpp
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@ -1696,41 +1696,40 @@ COGLES2Driver::~COGLES2Driver()
if (resetAllRenderstates)
tmpTexture->getStatesCache().IsCached = false;
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter)
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].MagFilter != tmpTexture->getStatesCache().MagFilter)
{
E_TEXTURE_MAG_FILTER magFilter = material.TextureLayer[i].MagFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MAG_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
magFilter == ETMAGF_BILINEAR ? GL_LINEAR : GL_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MagFilter = magFilter;
}
if (material.UseMipMaps && tmpTexture->hasMipMaps())
{
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter || !tmpTexture->getStatesCache().MipMapStatus)
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].MinFilter != tmpTexture->getStatesCache().MinFilter ||
!tmpTexture->getStatesCache().MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MIN_FILTER,
material.TextureLayer[i].TrilinearFilter ? GL_LINEAR_MIPMAP_LINEAR :
material.TextureLayer[i].BilinearFilter ? GL_LINEAR_MIPMAP_NEAREST :
minFilter == ETMINF_TRILINEAR ? GL_LINEAR_MIPMAP_LINEAR :
minFilter == ETMINF_BILINEAR ? GL_LINEAR_MIPMAP_NEAREST :
GL_NEAREST_MIPMAP_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MinFilter = minFilter;
tmpTexture->getStatesCache().MipMapStatus = true;
}
}
else
{
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter || tmpTexture->getStatesCache().MipMapStatus)
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].MinFilter != tmpTexture->getStatesCache().MinFilter ||
tmpTexture->getStatesCache().MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MIN_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
(minFilter == ETMINF_TRILINEAR || minFilter == ETMINF_BILINEAR) ? GL_LINEAR : GL_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MinFilter = minFilter;
tmpTexture->getStatesCache().MipMapStatus = false;
}
}

31
source/Irrlicht/COGLESDriver.cpp
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@ -1914,41 +1914,40 @@ void COGLES1Driver::setTextureRenderStates(const SMaterial& material, bool reset
}
#endif
if (!statesCache.IsCached || material.TextureLayer[i].BilinearFilter != statesCache.BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != statesCache.TrilinearFilter)
if (!statesCache.IsCached || material.TextureLayer[i].MagFilter != statesCache.MagFilter)
{
E_TEXTURE_MAG_FILTER magFilter = material.TextureLayer[i].MagFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MAG_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
magFilter == ETMAGF_BILINEAR ? GL_LINEAR : GL_NEAREST);
statesCache.BilinearFilter = material.TextureLayer[i].BilinearFilter;
statesCache.TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
statesCache.MagFilter = magFilter;
}
if (material.UseMipMaps && tmpTexture->hasMipMaps())
{
if (!statesCache.IsCached || material.TextureLayer[i].BilinearFilter != statesCache.BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != statesCache.TrilinearFilter || !statesCache.MipMapStatus)
if (!statesCache.IsCached || material.TextureLayer[i].MinFilter != statesCache.MinFilter ||
!statesCache.MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MIN_FILTER,
material.TextureLayer[i].TrilinearFilter ? GL_LINEAR_MIPMAP_LINEAR :
material.TextureLayer[i].BilinearFilter ? GL_LINEAR_MIPMAP_NEAREST :
minFilter == ETMINF_TRILINEAR ? GL_LINEAR_MIPMAP_LINEAR :
minFilter == ETMINF_BILINEAR ? GL_LINEAR_MIPMAP_NEAREST :
GL_NEAREST_MIPMAP_NEAREST);
statesCache.BilinearFilter = material.TextureLayer[i].BilinearFilter;
statesCache.TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
statesCache.MinFilter = minFilter;
statesCache.MipMapStatus = true;
}
}
else
{
if (!statesCache.IsCached || material.TextureLayer[i].BilinearFilter != statesCache.BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != statesCache.TrilinearFilter || statesCache.MipMapStatus)
if (!statesCache.IsCached || material.TextureLayer[i].MinFilter != statesCache.MinFilter ||
statesCache.MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MIN_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
(minFilter == ETMINF_TRILINEAR || minFilter == ETMINF_BILINEAR) ? GL_LINEAR : GL_NEAREST);
statesCache.BilinearFilter = material.TextureLayer[i].BilinearFilter;
statesCache.TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
statesCache.MinFilter = minFilter;
statesCache.MipMapStatus = false;
}
}

8
source/Irrlicht/COpenGLCoreTexture.h
View File

@ -31,8 +31,8 @@ public:
struct SStatesCache
{
SStatesCache() : WrapU(ETC_REPEAT), WrapV(ETC_REPEAT), WrapW(ETC_REPEAT),
LODBias(0), AnisotropicFilter(0), BilinearFilter(false), TrilinearFilter(false),
MipMapStatus(false), IsCached(false)
LODBias(0), AnisotropicFilter(0), MinFilter(video::ETMINF_NEAREST),
MagFilter(video::ETMAGF_NEAREST), MipMapStatus(false), IsCached(false)
{
}
@ -41,8 +41,8 @@ public:
u8 WrapW;
s8 LODBias;
u8 AnisotropicFilter;
bool BilinearFilter;
bool TrilinearFilter;
video::E_TEXTURE_MIN_FILTER MinFilter;
video::E_TEXTURE_MAG_FILTER MagFilter;
bool MipMapStatus;
bool IsCached;
};

31
source/Irrlicht/COpenGLDriver.cpp
View File

@ -2709,41 +2709,40 @@ void COpenGLDriver::setTextureRenderStates(const SMaterial& material, bool reset
}
#endif
if (!statesCache.IsCached || material.TextureLayer[i].BilinearFilter != statesCache.BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != statesCache.TrilinearFilter)
if (!statesCache.IsCached || material.TextureLayer[i].MagFilter != statesCache.MagFilter)
{
E_TEXTURE_MAG_FILTER magFilter = material.TextureLayer[i].MagFilter;
glTexParameteri(tmpType, GL_TEXTURE_MAG_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
magFilter == ETMAGF_BILINEAR ? GL_LINEAR : GL_NEAREST);
statesCache.BilinearFilter = material.TextureLayer[i].BilinearFilter;
statesCache.TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
statesCache.MagFilter = magFilter;
}
if (material.UseMipMaps && tmpTexture->hasMipMaps())
{
if (!statesCache.IsCached || material.TextureLayer[i].BilinearFilter != statesCache.BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != statesCache.TrilinearFilter || !statesCache.MipMapStatus)
if (!statesCache.IsCached || material.TextureLayer[i].MinFilter != statesCache.MinFilter ||
!statesCache.MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpType, GL_TEXTURE_MIN_FILTER,
material.TextureLayer[i].TrilinearFilter ? GL_LINEAR_MIPMAP_LINEAR :
material.TextureLayer[i].BilinearFilter ? GL_LINEAR_MIPMAP_NEAREST :
minFilter == ETMINF_TRILINEAR ? GL_LINEAR_MIPMAP_LINEAR :
minFilter == ETMINF_BILINEAR ? GL_LINEAR_MIPMAP_NEAREST :
GL_NEAREST_MIPMAP_NEAREST);
statesCache.BilinearFilter = material.TextureLayer[i].BilinearFilter;
statesCache.TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
statesCache.MinFilter = minFilter;
statesCache.MipMapStatus = true;
}
}
else
{
if (!statesCache.IsCached || material.TextureLayer[i].BilinearFilter != statesCache.BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != statesCache.TrilinearFilter || statesCache.MipMapStatus)
if (!statesCache.IsCached || material.TextureLayer[i].MinFilter != statesCache.MinFilter ||
statesCache.MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpType, GL_TEXTURE_MIN_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
(minFilter == ETMINF_TRILINEAR || minFilter == ETMINF_BILINEAR) ? GL_LINEAR : GL_NEAREST);
statesCache.BilinearFilter = material.TextureLayer[i].BilinearFilter;
statesCache.TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
statesCache.MinFilter = minFilter;
statesCache.MipMapStatus = false;
}
}

31
source/Irrlicht/OpenGL/Driver.cpp
View File

@ -1456,41 +1456,40 @@ COpenGL3DriverBase::~COpenGL3DriverBase()
if (resetAllRenderstates)
tmpTexture->getStatesCache().IsCached = false;
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter)
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].MagFilter != tmpTexture->getStatesCache().MagFilter)
{
E_TEXTURE_MAG_FILTER magFilter = material.TextureLayer[i].MagFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MAG_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
magFilter == ETMAGF_BILINEAR ? GL_LINEAR : GL_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MagFilter = magFilter;
}
if (material.UseMipMaps && tmpTexture->hasMipMaps())
{
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter || !tmpTexture->getStatesCache().MipMapStatus)
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].MinFilter != tmpTexture->getStatesCache().MinFilter ||
!tmpTexture->getStatesCache().MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MIN_FILTER,
material.TextureLayer[i].TrilinearFilter ? GL_LINEAR_MIPMAP_LINEAR :
material.TextureLayer[i].BilinearFilter ? GL_LINEAR_MIPMAP_NEAREST :
minFilter == ETMINF_TRILINEAR ? GL_LINEAR_MIPMAP_LINEAR :
minFilter == ETMINF_BILINEAR ? GL_LINEAR_MIPMAP_NEAREST :
GL_NEAREST_MIPMAP_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MinFilter = minFilter;
tmpTexture->getStatesCache().MipMapStatus = true;
}
}
else
{
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter || tmpTexture->getStatesCache().MipMapStatus)
if (!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].MinFilter != tmpTexture->getStatesCache().MinFilter ||
tmpTexture->getStatesCache().MipMapStatus)
{
E_TEXTURE_MIN_FILTER minFilter = material.TextureLayer[i].MinFilter;
glTexParameteri(tmpTextureType, GL_TEXTURE_MIN_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
(minFilter == ETMINF_TRILINEAR || minFilter == ETMINF_BILINEAR) ? GL_LINEAR : GL_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MinFilter = minFilter;
tmpTexture->getStatesCache().MipMapStatus = false;
}
}