DirectX的fx文件问题
求助我不知道fx文件是什么意思。。
里面写的
//=============================================================================
// transform.fx by Frank Luna (C) 2004 All Rights Reserved.
//
// Basic FX that simply transforms geometry from local space to
// homogeneous clip space, and draws the geometry in wireframe mode.
//=============================================================================
uniform extern float4x4 gWVP;
// Define a vertex shader output structure; that is, a structure
// that defines the data we output from the vertex shader. Here,
// we only output a 4D vector in homogeneous clip space. The
// semantic ": POSITION0" tells Direct3D that the data returned
// in this data member is a vertex position.
struct OutputVS
{
float4 posH : POSITION0;
};
// Define the vertex shader program. The parameter posL
// corresponds to a data member in the vertex structure.
// Specifically, it corresponds to the data member in the
// vertex structure with usage D3DDECLUSAGE_POSITION and
// index 0 (as specified by the vertex declaration).
OutputVS TransformVS(float3 posL : POSITION0)
{
// Zero out our output.
OutputVS outVS = (OutputVS)0;
// Transform to homogeneous clip space.
outVS.posH = mul(float4(posL, 1.0f), gWVP);
// Done--return the output.
return outVS;
}
// Define the pixel shader program. Just return a 4D color
// vector (i.e., first component red, second component green,
// third component blue, fourth component alpha). Here we
// specify black to color the lines black.
float4 TransformPS() : COLOR
{
return float4(0.0f, 0.0f, 0.0f, 1.0f);
}
technique TransformTech
{
pass P0
{
// Specify the vertex and pixel shader associated with this pass.
vertexShader = compile vs_2_0 TransformVS();
pixelShader = compile ps_2_0 TransformPS();
// Specify the render/device states associated with this pass.
FillMode = Wireframe;
}
}
请高手帮忙解释一下。。这个文件是做什么用的。。。
[解决办法]
这是一个效果文件，包含顶点着色器和像素着色器，从上面的文件看，这个效果文件很简单，仅仅是做个一个顶点转换，和色彩输出。
还有一楼说fx-composer是个着色器代码检验工具，和ati的RenderMonkey差不多。
