diff options
| author | Laszlo Agocs <laszlo.agocs@qt.io> | 2020-10-01 10:17:56 +0200 |
|---|---|---|
| committer | Laszlo Agocs <laszlo.agocs@qt.io> | 2020-10-02 13:14:38 +0200 |
| commit | 9b35a16c645cfbed80b23b81c30317f39a94e0dd (patch) | |
| tree | eec2cb0348d19bd170e29551e3c47bccc804c3d3 /src/gui/rhi | |
| parent | 0b7aef08dcfc84390380a4b7a1a956d1e3193339 (diff) | |
rhi: Add a note to generateMips docs
Change-Id: Ib07eef8944367948338075832452fdae6df6078a
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Diffstat (limited to 'src/gui/rhi')
| -rw-r--r-- | src/gui/rhi/qrhi.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gui/rhi/qrhi.cpp b/src/gui/rhi/qrhi.cpp index 0dc3082b03..1e158f36ef 100644 --- a/src/gui/rhi/qrhi.cpp +++ b/src/gui/rhi/qrhi.cpp @@ -4991,6 +4991,13 @@ void QRhiResourceUpdateBatch::readBackTexture(const QRhiReadbackDescription &rb, \note The texture must be created with QRhiTexture::MipMapped and QRhiTexture::UsedWithGenerateMips. + + \warning QRhi cannot guarantee that mipmaps can be generated for all + supported texture formats. For example, QRhiTexture::RGBA32F is not a \c + filterable format in OpenGL ES 3.0 and Metal on iOS, and therefore the + mipmap generation request may fail. RGBA8 and RGBA16F are typically + filterable, so it is recommended to use these formats when mipmap generation + is desired. */ void QRhiResourceUpdateBatch::generateMips(QRhiTexture *tex) { |