vs.hlsl
资源名称:3dwind2.0.rar [点击查看]
上传用户:xhbjoy
上传日期:2014-10-07
资源大小:38068k
文件大小:2k
源码类别:
游戏引擎
开发平台:
Visual C++
- /******************************************************************************
- Copyright (c) W.J. van der Laan
- Permission is hereby granted, free of charge, to any person obtaining a copy of
- this software and associated documentation files (the "Software"), to deal in
- the Software without restriction, including without limitation the rights to use,
- copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
- Software, and to permit persons to whom the Software is furnished to do so, subject
- to the following conditions:
- The above copyright notice and this permission notice shall be included in all copies
- or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
- INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE
- SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- ******************************************************************************/
- /** Deferred shading framework
- // W.J. :wumpus: van der Laan 2005 //
- Post shader: Generic fullscreen quad
- */
- struct VS_OUTPUT {
- float4 Pos: POSITION;
- float2 texCoord: TEXCOORD0;
- float3 projCoord: TEXCOORD1;
- };
- float4x4 invProj;
- VS_OUTPUT main(float4 Pos: POSITION){
- VS_OUTPUT Out;
- // Clean up inaccuracies
- Pos.xy = sign(Pos.xy);
- Out.Pos = float4(Pos.xy, 0, 1);
- // Image-space
- Out.texCoord.x = 0.5 * (1 + Pos.x);
- Out.texCoord.y = 0.5 * (1 - Pos.y);
- // Projection coordinates
- // Inverted projection matrix
- // These interpolate over the frustrum plane for w=1
- Out.projCoord = float3(Pos.x, Pos.y, 1) *
- float3(
- invProj[0][0], // X vector component from X
- invProj[1][1], // Y vector component from Y
- invProj[2][3] // Z vector component from W
- );
- return Out;
- }