OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Pixel shader used to do a bloom. It's expected that the consumers set | |
6 // TexelKernel before using. | |
7 | |
8 Texture2D textureMap; | |
9 | |
10 cbuffer cbPerObject { | |
11 float4x4 gWVP; | |
12 }; | |
13 | |
14 struct VS_IN { | |
15 float3 posL : POSITION; | |
16 float2 texC : TEXC; | |
17 }; | |
18 | |
19 struct VS_OUT { | |
20 float4 posW : SV_POSITION; | |
21 float2 texC : TEXC; | |
22 }; | |
23 | |
24 SamplerState Sampler { | |
25 Filter = MIN_MAG_MIP_POINT; | |
26 AddressU = Clamp; | |
27 AddressV = Clamp; | |
28 }; | |
29 | |
30 VS_OUT VS(VS_IN vIn) { | |
31 VS_OUT vOut; | |
32 vOut.posW = mul(float4(vIn.posL, 1.0f), gWVP); | |
33 vOut.texC = vIn.texC; | |
34 return vOut; | |
35 } | |
36 | |
37 // Size of the kernel. | |
38 static const int g_cKernelSize = 13; | |
39 | |
40 static const float BlurWeights[g_cKernelSize] = { | |
41 1.0f / 4096.0f, | |
42 12.0f / 4096.0f, | |
43 66.0f / 4096.0f, | |
44 220.0f / 4096.0f, | |
45 495.0f / 4096.0f, | |
46 792.0f / 4096.0f, | |
47 924.0f / 4096.0f, | |
48 792.0f / 4096.0f, | |
49 495.0f / 4096.0f, | |
50 220.0f / 4096.0f, | |
51 66.0f / 4096.0f, | |
52 12.0f / 4096.0f, | |
53 1.0f / 4096.0f, | |
54 }; | |
55 | |
56 // Set by consumer as it depends upon width/height of viewport. | |
57 float4 TexelKernel[g_cKernelSize]; | |
58 | |
59 float4 PS(VS_OUT pIn) : SV_Target { | |
60 float4 c = 0; | |
61 for (int i = 0; i < g_cKernelSize; i++) { | |
62 c += textureMap.Sample(Sampler, float2(pIn.texC) + TexelKernel[i].xy) * | |
63 BlurWeights[i]; | |
64 } | |
65 return c; | |
66 } | |
67 | |
68 technique10 ViewTech { | |
69 pass P0 { | |
70 SetVertexShader(CompileShader(vs_4_0, VS())); | |
71 SetGeometryShader(NULL); | |
72 SetPixelShader(CompileShader(ps_4_0, PS())); | |
73 } | |
74 } | |
OLD | NEW |