   Light in Texture with Texture Blending FX File (applicachia.com of the Chris)
  Hi guys, ...I have this effect file://////////////////// File: TextureBlending.fx// Author: Chris Smith//////////////////float4x4 worldViewProj;float  UVMapTerra1;float  UVMapGrama1;float  UVMapAgua1;texture texturaTerra1;texture texturaGrama1;texture texturaAgua1;texture blendmapTexture;float3 LightDir = float3(1,1,1);sampler2D texturaTerra1Sampler = sampler_state{    Texture = (texturaTerra1);    MIPFILTER = LINEAR;    MAGFILTER = LINEAR;    MINFILTER = LINEAR;};sampler2D texturaGrama1Sampler = sampler_state{    Texture = (texturaGrama1);    MIPFILTER = LINEAR;    MAGFILTER = LINEAR;    MINFILTER = LINEAR;};sampler2D texturaAgua1Sampler = sampler_state{    Texture = (texturaAgua1);    MIPFILTER = LINEAR;    MAGFILTER = LINEAR;    MINFILTER = LINEAR;};sampler2D blendmapTextureSampler = sampler_state{    Texture = (blendmapTexture);    MIPFILTER = LINEAR;    MAGFILTER = LINEAR;    MINFILTER = LINEAR;};struct A2V{float4 position : POSITION0;    float2 texCoord : TEXCOORD0;float3 Normal   : NORMAL0;};struct V2P{    float4 position  : POSITION0;    float2 texCoordTerra1  : TEXCOORD0;    float2 texCoordGrama1 : TEXCOORD1;float2 texCoordAgua1: TEXCOORD2;    float2 texCoordBlendMap : TEXCOORD3;float3 Normal : TEXCOORD4;};void VS( in A2V IN, out V2P OUT) {    OUT.position  = mul(IN.position, worldViewProj);    OUT.texCoordTerra1  = IN.texCoord*UVMapTerra1;    OUT.texCoordGrama1 = IN.texCoord*UVMapGrama1;OUT.texCoordAgua1 = IN.texCoord*UVMapAgua1;    OUT.texCoordBlendMap = IN.texCoord;OUT.Normal    =   IN.Normal;}vector PS( in V2P IN) : COLOR{    vector TexColorTerra1 = tex2D( texturaTerra1Sampler, IN.texCoordTerra1 );    vector TexColorGrama1 = tex2D( texturaGrama1Sampler, IN.texCoordGrama1 );vector TexColorAgua1 = tex2D( texturaAgua1Sampler,  IN.texCoordAgua1 );    vector BlendMap  = tex2D( blendmapTextureSampler, IN.texCoordBlendMap );    float DotNL = saturate(dot(IN.Normal, normalize(LightDir)));float4 Color = (TexColorTerra1 * BlendMap.r) + (TexColorGrama1 * BlendMap.g) + (TexColorAgua1 * BlendMap.b);return Color * DotNL;}technique TexBlend{    pass p0    {   vertexshader = compile vs_2_0 VS();pixelshader = compile ps_2_0 PS();    }}and 1 mesh .x file (terrain), and i set the effect:TexBlendEffectMapa1->SetTechnique( "TexBlend" );TexBlendEffectMapa1->SetMatrix( "worldViewProj", &(ObjCamera->getMatrixTempWorld() * ObjCamera->getMatrixView() * ObjCamera->getMatrixTempProj() ) );TexBlendEffectMapa1->SetTexture( "texturaTerra1", texturaTerra1 );TexBlendEffectMapa1->SetTexture( "texturaGrama1", texturaGrama1 );TexBlendEffectMapa1->SetTexture( "texturaAgua1", texturaAgua1 );TexBlendEffectMapa1->SetTexture( "blendmapTexture", BlendTextureMapa1 );TexBlendEffectMapa1->SetFloat( "UVMapTerra1", 16 );TexBlendEffectMapa1->SetFloat( "UVMapGrama1", 16 ); // 80 lolTexBlendEffectMapa1->SetFloat( "UVMapAgua1", 16 );//começa a passar o shaderUINT Pass, Passes;TexBlendEffectMapa1->Begin(&Passes, 0);for (Pass = 0; Pass < Passes; Pass++){TexBlendEffectMapa1->BeginPass(Pass);MeshTerrain->DrawSubset(0);TexBlendEffectMapa1->EndPass();}TexBlendEffectMapa1->End();but when I set light (D3DLIGHT9)  the light did not appear.What do I need to do?how i set the light (enabled light)?without this effect the light appear :(help me thank guys :)   
  someone ? :(   ;  HELPPPPPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEEE   ;  If you're using vertex and pixel shaders, then you can't use fixed-function lighting. You either have to use one or the other.Those shaders you're using have some sort of lighting built-in, using the "LightDir" parameter. You should set that if you want to change the direction of the light source, or add some more parameters if you want to control things like the light color.   ;Quote:Original post by MJPIf you're using vertex and pixel shaders, then you can't use fixed-function lighting. You either have to use one or the other.Those shaders you're using have some sort of lighting built-in, using the "LightDir" parameter. You should set that if you want to change the direction of the light source, or add some more parameters if you want to control things like the light color.thank for answer :)but... how do this? :$   