(I posted this already in the model-section...without success. I know cross-posting = no good...please don't hit me now!)
So far I had to split my tree models into two seperate models (trunk and branches) to be able to apply a wind-shader that woulden't affect the trunk. Now in 6.4 there seems to be the possibility to apply to each texture a seperate fx-file wich means I woulden't have to split the tree model. I could just assign the branch uv's to the branch texture (wich I applay as 2. Texture on the tree model) and apply the fx-file to it. However it dident work for me (I don't even see the tree in WED anymore)...can this work with vertex shader at all???. Any help would be appreciated...The deal is as usual: Nice Trees for working code!
The fx-file looks like that:
(adressing entSkin2 diden't change anything. Also loading an external texSkin diden't work)
Code:
texture entSkin1;
matrix matWorldViewProj;
matrix matWorldView;
vector vecFog;
vector vecTime;
technique tree
{
pass p0
{
texture[0]=<entSkin1>;
zWriteEnable=true;
alphaTestEnable=true;
cullMode=none;
vertexShaderConstant[0]=<matWorldViewProj>;
vertexShaderConstant[8]=<matWorldView>;
vertexShaderConstant[16]=<vecFog>;
vertexShaderConstant[32]=<vecTime>;
vertexShaderConstant[33]={0.0f,0.5f,1.0f,2.0f}; // common constants
vertexShaderConstant[34]={-0.16161616f,0.0083333f,-0.00019841f,0.000002755731f}; // {-1/3!,1/5!,-1/7!,1/9!}
vertexShaderConstant[35]={4.0f,1.57079632f,3.14159265f,6.28318530f}; // {4.0,pi/2,pi,pi*2}
vertexShaderConstant[36]={1.07f,0.0f,0.0f,0.0f}; // fixup factor
vertexShaderConstant[40]={2.5f,1.0f,0.5f,0.1f}; // wave distort x
vertexShaderConstant[41]={3.0f,1.5f,1.25f,0.1f}; // wave distort y
vertexShaderConstant[42]={-0.5f,-0.01f,-0.04f,-0.01f}; // wave distort z
vertexShaderConstant[43]={-0.1f,-0.2f,0.1f,0.05f}; // wave dir x
vertexShaderConstant[44]={-0.005f,-0.01f,-0.005f,-0.0025f}; // wave dir y
//vertexShaderConstant[45]={0.02f,0.04f,0.05f,0.1f}; // wave speed
vertexShaderConstant[45]={0.003f,0.006f,0.008f,0.05f}; // wave speed
vertexShaderConstant[46]={0.35f,0.1f,0.1f,0.04f}; // lighting wave scale
vertexShaderConstant[47]={0.6f,0.8f,0.3f,0.0f}; // lighting scale bias
vertexShader=
asm
{
vs.1.1
dcl_position v0
dcl_normal v3
dcl_texcoord0 v7
dcl_texcoord1 v8
mov r1.w,c16.w // r1.w=1
dp4 r0,v0,c10 // distance to camera position (v0 is the position without sinusodial warping!)
add r0,r0,-c16.x // distance-fog_start
mad r0.x,-r0.x,c16.z,r1.w // 1-(distance-fog_start)*(1/(fog_end-fog_start))
max oFog,r0.x,c33.x // clamp with custom max value
mul r0,c43,v0.x // use vertex pos x as inputs to sinusoidal warp
mad r0,c44,v0.y,r0 // use vertex pos y as inputs to sinusoidal warp
mov r1,c32.w // get current time
mad r0,r1,c45,r0 // add scaled time
frc r0.xy,r0 // take fraction of all 4 components
frc r1.xy,r0.zwzw
mov r0.zw,r1.xyxy
mul r0,r0,c36.x // multiply by fixup factor (due to inaccuracy of taylor series)
sub r0,r0,c33.y // subtract 0.5
mul r1,r0,c35.w // range -pi to pi
mul r2,r1,r1 // wave_vec^2
mul r3,r2,r1 // wave_vec^3
mul r5,r3,r2 // wave_vec^5
mul r7,r5,r2 // wave_vec^7
mul r9,r7,r2 // wave_vec^9
mad r0,r3,c34.x,r1 // wave_vec-(wave_vec^3)/3!
mad r0,r5,c34.y,r0 // +(wave_vec^5)/5!
mad r0,r7,c34.z,r0 // -(wave_vec^7)/7!
mad r0,r9,c34.w,r0 // +(wave_vec^9)/9!
dp4 r3.x,r0,c40
dp4 r3.y,r0,c41
dp4 r3.zw,r0,c42
sub r4,c33.z,v7.y // attenuate sinusoidal warping by (1-uv.y)^2
mul r4,r4,r4
mul r3,r3,r4
mov r2.w,v0
add r2.xyz,r3,v0 // add sinusoidal warping to grass position
m4x4 oPos,r2,c0 // transform position to clip space
dp4 r1.x,r0,c46 // scale and add sin waves together
mad oD0,c47.xzxz,-r1.x,c47.y // scale and bias color values (green is scaled more than red and blue)
mov oT0.xy,v7.xy // output uvs
};
pixelShader=
asm
{
ps.1.3
def c0,1,1,1,1
def c1,0,0,0,0
tex t0 // sample t0
mov r0,t0
cnd r0.a,r0.a,c0,c1 // if(r0.a>0.5){r0.a=1;}else{r0.a=0;}
//mul_x2 r0.rgb,r0,v0 // modulate with lighting
};
}
}
