diff options
| -rw-r--r-- | src/render/texture/qtexture.cpp | 14 | ||||
| -rw-r--r-- | src/render/texture/qtextureimage.cpp | 14 |
2 files changed, 24 insertions, 4 deletions
diff --git a/src/render/texture/qtexture.cpp b/src/render/texture/qtexture.cpp index 4254a977f..1ccf48b5d 100644 --- a/src/render/texture/qtexture.cpp +++ b/src/render/texture/qtexture.cpp @@ -1321,7 +1321,12 @@ void QTextureLoader::setSource(const QUrl& source) This property specifies whether the texture should be mirrored when loaded. This is a convenience to avoid having to manipulate images to match the origin of the texture coordinates used by the rendering API. By default this property - is set to true. This has no effect when using compressed texture formats. + is set to true. This has no effect when using GPU compressed texture formats. + + \warning This property results in a performance price payed at runtime when + loading uncompressed or CPU compressed image formats such as PNG. To avoid this + performance price it is better to set this property to false and load texture + assets that have been pre-mirrored. \note OpenGL specifies the origin of texture coordinates from the lower left hand corner whereas DirectX uses the the upper left hand corner. @@ -1337,7 +1342,12 @@ void QTextureLoader::setSource(const QUrl& source) This property specifies whether the texture should be mirrored when loaded. This is a convenience to avoid having to manipulate images to match the origin of the texture coordinates used by the rendering API. By default this property - is set to true. This has no effect when using compressed texture formats. + is set to true. This has no effect when using GPU compressed texture formats. + + \warning This property results in a performance price payed at runtime when + loading uncompressed or CPU compressed image formats such as PNG. To avoid this + performance price it is better to set this property to false and load texture + assets that have been pre-mirrored. \note OpenGL specifies the origin of texture coordinates from the lower left hand corner whereas DirectX uses the the upper left hand corner. diff --git a/src/render/texture/qtextureimage.cpp b/src/render/texture/qtextureimage.cpp index 9834a4e0a..57c320a82 100644 --- a/src/render/texture/qtextureimage.cpp +++ b/src/render/texture/qtextureimage.cpp @@ -185,7 +185,12 @@ void QTextureImage::setSource(const QUrl &source) This property specifies whether the image should be mirrored when loaded. This is a convenience to avoid having to manipulate images to match the origin of the texture coordinates used by the rendering API. By default this property - is set to true. This has no effect when using compressed texture formats. + is set to true. This has no effect when using GPU compressed texture formats. + + \warning This property results in a performance price payed at runtime when + loading uncompressed or CPU compressed image formats such as PNG. To avoid this + performance price it is better to set this property to false and load texture + assets that have been pre-mirrored. \note OpenGL specifies the origin of texture coordinates from the lower left hand corner whereas DirectX uses the the upper left hand corner. @@ -201,7 +206,12 @@ void QTextureImage::setSource(const QUrl &source) This property specifies whether the image should be mirrored when loaded. This is a convenience to avoid having to manipulate images to match the origin of the texture coordinates used by the rendering API. By default this property - is set to true. This has no effect when using compressed texture formats. + is set to true. This has no effect when using GPU compressed texture formats. + + \warning This property results in a performance price payed at runtime when + loading uncompressed or CPU compressed image formats such as PNG. To avoid this + performance price it is better to set this property to false and load texture + assets that have been pre-mirrored. \note OpenGL specifies the origin of texture coordinates from the lower left hand corner whereas DirectX uses the the upper left hand corner. |