//------------------------------------
// Game Engine Effects.
//------------------------------------
//------------------------------------
// TECHNIQUE VARIBLES.
//------------------------------------
bool Monochrome = false;
//------------------------------------
// Lighting variables.
//------------------------------------
int lig_Num = 0;
bool lig_enable[8];
float3 lig_Color[8];
float3 lig_Pos[8];
//------------------------------------
// Input Variables.
//------------------------------------
float4x4 matWorldViewProj;
float4x4 matWorld;
float4 vecLightDir;
float4 vecEye;
//------------------------------------
// Vertex Shader Output.
//------------------------------------
struct VS_OUTPUT
{
float4 Pos : POSITION;
float3 Light : TEXCOORD0;
float3 Norm : TEXCOORD1;
float3 View : TEXCOORD2;
};
//------------------------------------
// Vertex Shader Routine.
//------------------------------------
VS_OUTPUT VS(float4 Pos : POSITION, float3 Normal : NORMAL)
{
VS_OUTPUT Out = (VS_OUTPUT)0;
Out.Pos = mul(Pos, matWorldViewProj); // transform Position
Out.Light = vecLightDir; // L
float3 PosWorld = normalize(mul(Pos, matWorld));
Out.View = vecEye - PosWorld; // V
Out.Norm = mul(Normal, matWorld); // N
return Out;
}
//------------------------------------
// Pixel Shader Routine.
//------------------------------------
float4 PS(float3 Light: TEXCOORD0, float3 Norm : TEXCOORD1,
float3 View : TEXCOORD2) : COLOR
{
float4 diffuse = { 1.0f, 0.0f, 0.0f, 1.0f};
float4 ambient = {0.1, 0.0, 0.0, 1.0};
float3 Normal = normalize(Norm);
float3 LightDir = normalize(Light);
float3 ViewDir = normalize(View);
float4 diff = saturate(dot(Normal, LightDir)); // diffuse component
// compute self-shadowing term
float shadow = saturate(4* diff);
float3 Reflect = normalize(2 * diff * Normal - LightDir); // R
float4 specular = pow(saturate(dot(Reflect, ViewDir)), 8); // R.V^n
// I = ambient + shadow * (Dcolor * N.L + (R.V)n)
return ambient + shadow * (diffuse * diff + specular);
}
//------------------------------------
// Technique: TECH
// Desc: Performes the technique for the
// engine effects on a mesh.
//------------------------------------
technique ENGINE_FX
{
pass p0
{
VertexShader = compile vs_2_0 VS();
PixelShader = compile ps_2_0 PS();
}
}
effect pixel shader not working
Author
Hello everyone. I'm writing an effect to do lighting, but even though it does all the vertex shading, it doesn't do any of the pixel shading. I tested it with Direct3D debug and it breaks perfectly on the vertex shader routing but it completly skips the pixel one.
I don't know if I have to set a flag in order to get this to work.
this is the fx file I took it from gamasutra
Any suggestions. Thanx
What debug output are you getting?
Is it definitely not using your shader? if you put a return float4( 1.0f, 0.0f, 0.0f, 1.0f ); do you get a solid red output?
Have you tried using the latest builds of PIX (in the June SDK) for the "Pixel History" feature? You should be able to determine what (if any) shaders are being applied to a given pixel.
If you're running on one of the Intel IGP's they haven't always supported ps_2_0 but will happily run vs_2_0 (iirc). What hardware are you running on, and are you sure you've dont appropriate enumeration?
hth
Jack
Is it definitely not using your shader? if you put a return float4( 1.0f, 0.0f, 0.0f, 1.0f ); do you get a solid red output?
Have you tried using the latest builds of PIX (in the June SDK) for the "Pixel History" feature? You should be able to determine what (if any) shaders are being applied to a given pixel.
If you're running on one of the Intel IGP's they haven't always supported ps_2_0 but will happily run vs_2_0 (iirc). What hardware are you running on, and are you sure you've dont appropriate enumeration?
hth
Jack
Author
There is another weird thing, if I put:
VertexShader = null;
PixelShader = compile ps_2_0 PS();
it does the pixel shader with no problem. why is that
VertexShader = null;
PixelShader = compile ps_2_0 PS();
it does the pixel shader with no problem. why is that
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement