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path: root/src/datavisualization/engine/shaders/texture3d.frag
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* Limit volume to axis rangesMiikka Heikkinen2014-09-101-36/+28
| | | | | | | | | The volume object that would go partially outside axis ranges is scale and repositioned so that it only renders the portion that is inside the axis ranges. Change-Id: I792494e437998ba6276f58fab645767276c1476d Reviewed-by: Mika Salmela <mika.salmela@digia.com>
* Add option to use low definition volume shader.Miikka Heikkinen2014-09-021-5/+3
| | | | | | | | Low definition volume shader samples the texture at even intervals, so it will sometimes skip texels, causing flickering. Change-Id: Iee6cb0e8893498b89ce1a40f34701a53d100283e Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
* Pixel perfect volume shaderMiikka Heikkinen2014-09-011-53/+109
| | | | | | | | | Now the volume should render with pixel perfect accuracy. The drawback is that it is significantly slower than the old approximate solution. Change-Id: I4df7e9a28a27b56150c71a85a4c1fb69a215dabc Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
* Add alpha multiplier to QCustom3DVolume apiMiikka Heikkinen2014-08-251-3/+11
| | | | | | Change-Id: I856c4166513f6d6f7b73fd52bc46d52ab1b8fdff Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com> Reviewed-by: Mika Salmela <mika.salmela@digia.com>
* Tweak volume shaders.Miikka Heikkinen2014-08-221-62/+74
| | | | | | | Also fix custom object default texture. Change-Id: Iba9ff6afb807d9f7a4e1f58b0e5fb4bca4c9c431 Reviewed-by: Mika Salmela <mika.salmela@digia.com>
* Make volume transparency uniform regardless of viewing angleMiikka Heikkinen2014-08-201-2/+9
| | | | | Change-Id: If3acbb161b99f67d81f7af9c05ae8bcfe154e052 Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
* Make volume shading sample once per texture layer.Miikka Heikkinen2014-08-191-6/+18
| | | | | | Change-Id: Ia3a13e2cb8d7dcf744a55dcb827f5cb436a043c4 Reviewed-by: Mika Salmela <mika.salmela@digia.com> Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
* Implement volume rendering supportMiikka Heikkinen2014-08-181-0/+70
New subclass of QCustom3DItem, QCustom3DVolume is provided. The documentation for the example will be done in a separate commit. Change-Id: Idb3fdb0654c6bec7606ca012b75852a5a8412397 Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
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