diff options
Diffstat (limited to 'hlsl/downsample.fx')
-rw-r--r-- | hlsl/downsample.fx | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/hlsl/downsample.fx b/hlsl/downsample.fx index 122172350f9..e89407208be 100644 --- a/hlsl/downsample.fx +++ b/hlsl/downsample.fx @@ -53,15 +53,25 @@ struct PS_INPUT uniform float2 ScreenDims; uniform float2 TargetDims; -uniform float2 SourceRect; +uniform float2 QuadDims; -uniform bool PrepareVector; +uniform int BloomLevel; + +uniform bool VectorScreen; + +static const float2 Coord0Offset = float2(-0.5f, -0.5f); +static const float2 Coord1Offset = float2( 0.5f, -0.5f); +static const float2 Coord2Offset = float2(-0.5f, 0.5f); +static const float2 Coord3Offset = float2( 0.5f, 0.5f); VS_OUTPUT vs_main(VS_INPUT Input) { VS_OUTPUT Output = (VS_OUTPUT)0; - float2 TargetTexelDims = 1.0f / TargetDims; + float2 HalfTargetTexelDims = 0.5f / TargetDims; + HalfTargetTexelDims *= VectorScreen + ? (ScreenDims / QuadDims) + : 1.0f; Output.Position = float4(Input.Position.xyz, 1.0f); Output.Position.xy /= ScreenDims; @@ -71,15 +81,13 @@ VS_OUTPUT vs_main(VS_INPUT Input) Output.Color = Input.Color; - float2 TexCoord = Input.Position.xy / ScreenDims; - TexCoord += PrepareVector - ? 0.5f / TargetDims // half texel offset correction (DX9) - only for vector grpahics - : 0.0f; + float2 TexCoord = Input.TexCoord; + TexCoord += 0.5f / TargetDims; // half texel offset correction (DX9) - Output.TexCoord01.xy = TexCoord + float2(-0.5f, -0.5f) * TargetTexelDims; - Output.TexCoord01.zw = TexCoord + float2( 0.5f, -0.5f) * TargetTexelDims; - Output.TexCoord23.xy = TexCoord + float2(-0.5f, 0.5f) * TargetTexelDims; - Output.TexCoord23.zw = TexCoord + float2( 0.5f, 0.5f) * TargetTexelDims; + Output.TexCoord01.xy = TexCoord + Coord0Offset * HalfTargetTexelDims; + Output.TexCoord01.zw = TexCoord + Coord1Offset * HalfTargetTexelDims; + Output.TexCoord23.xy = TexCoord + Coord2Offset * HalfTargetTexelDims; + Output.TexCoord23.zw = TexCoord + Coord3Offset * HalfTargetTexelDims; return Output; } |