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Merge pull request #622 from BeamNG/texel_pixel_offset

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Handle texel-pixel offset with diferents graphics APIs.
This commit is contained in:
LuisAntonRebollo 2014-11-30 02:20:45 +01:00
commit 3e7c7b3e49
2 changed files with 8 additions and 3 deletions
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7
Engine/source/gfx/util/screenspace.cpp
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@ -21,6 +21,7 @@
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
#include "gfx/util/screenspace.h" #include "gfx/util/screenspace.h"
#include "gfx/gfxDevice.h"
// The conversion from screen space to the render target // The conversion from screen space to the render target
// is made more complex because screen space is relative // is made more complex because screen space is relative
@ -41,9 +42,11 @@ void ScreenSpace::RenderTargetParameters(const Point3I &targetSize, const RectI
Point2F targetScale( (F32)targetViewport.extent.x / (F32)targetSize.x, Point2F targetScale( (F32)targetViewport.extent.x / (F32)targetSize.x,
(F32)targetViewport.extent.y / (F32)targetSize.y ); (F32)targetViewport.extent.y / (F32)targetSize.y );
const bool hasTexelPixelOffset = GFX->getAdapterType() == Direct3D9;
// Get the target half pixel size. // Get the target half pixel size.
const Point2F halfPixel( 0.5f / targetSize.x, const Point2F halfPixel( hasTexelPixelOffset ? (0.5f / targetSize.x) : 0.0f,
0.5f / targetSize.y ); hasTexelPixelOffset ? (0.5f / targetSize.y) : 0.0f );
rtParams.set( targetOffset.x + halfPixel.x, rtParams.set( targetOffset.x + halfPixel.x,
targetOffset.y + halfPixel.y, targetOffset.y + halfPixel.y,

4
Engine/source/postFx/postEffect.cpp
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@ -637,7 +637,9 @@ void PostEffect::_setupConstants( const SceneRenderState *state )
Point2F offset((F32)viewport.point.x / (F32)targetSize.x, (F32)viewport.point.y / (F32)targetSize.y ); Point2F offset((F32)viewport.point.x / (F32)targetSize.x, (F32)viewport.point.y / (F32)targetSize.y );
Point2F scale((F32)viewport.extent.x / (F32)targetSize.x, (F32)viewport.extent.y / (F32)targetSize.y ); Point2F scale((F32)viewport.extent.x / (F32)targetSize.x, (F32)viewport.extent.y / (F32)targetSize.y );
const Point2F halfPixel( 0.5f / targetSize.x, 0.5f / targetSize.y ); const bool hasTexelPixelOffset = GFX->getAdapterType() == Direct3D9;
const Point2F halfPixel( hasTexelPixelOffset ? (0.5f / targetSize.x) : 0.0f,
hasTexelPixelOffset ? (0.5f / targetSize.y) : 0.0f );
Point4F targetParams; Point4F targetParams;
targetParams.x = offset.x + halfPixel.x; targetParams.x = offset.x + halfPixel.x;