diff options
| author | Paul Olav Tvete <paul.tvete@qt.io> | 2019-10-01 15:19:37 +0200 |
|---|---|---|
| committer | Paul Olav Tvete <paul.tvete@qt.io> | 2019-10-03 09:38:32 +0200 |
| commit | 2e068c7f2aca6a40bcf1e4c5bc85c26f478fe786 (patch) | |
| tree | 452e58bb9af92acb3e606fd22f410af84ff6312c /src/gui/rhi/qrhi.cpp | |
| parent | 5bc972a4118927be7d2b81e4ff66be5bc274fdaa (diff) | |
Add TriangleFan pipeline topology
Triangle fan drawing is only supported on some platforms. The feature
flag QRhi::TriangleFanTopology is set accordingly.
In general, TriangleStrip topology will be more efficient on most GPUs.
However, if polygon data is already stored as triangle fans, the CPU
savings may be more significant.
Change-Id: I9704fad751d2119eac8791074f58942dd9315601
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Diffstat (limited to 'src/gui/rhi/qrhi.cpp')
| -rw-r--r-- | src/gui/rhi/qrhi.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/rhi/qrhi.cpp b/src/gui/rhi/qrhi.cpp index e4f6da6d46..c8ec8c7410 100644 --- a/src/gui/rhi/qrhi.cpp +++ b/src/gui/rhi/qrhi.cpp @@ -563,7 +563,10 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general") \value BaseInstance Indicates that instanced draw commands support the \c firstInstance argument. When reported as not supported, the firstInstance value is ignored and the instance ID starts from 0. - */ + + \value TriangleFanTopology Indicates that QRhiGraphicsPipeline::setTopology() + supports QRhiGraphicsPipeline::TriangleFan. +*/ /*! \enum QRhi::BeginFrameFlag @@ -3123,6 +3126,7 @@ QDebug operator<<(QDebug dbg, const QRhiShaderResourceBindings &srb) \value Triangles (default) \value TriangleStrip + \value TriangleFan (only available if QRhi::TriangleFanTopology is supported) \value Lines \value LineStrip \value Points |