Subversion Repositories AndroidProjects

!!ARBvp1.0

# Purpose:

# Input Parameters:

# TexCoord0: Particle texture.

# TexCoord1: Corner point of particle.

#		xy: Particle corner. x and y have to be -1 or 1.

# TexCoord2: Particle options.

#		xy: Up vector

#		z: Particle size.

# Constants

PARAM ModelViewProj[4] = { state.matrix.mvp };

TEMP vertexpos;

TEMP offsetvector, offsetlength, rightvector;

# Move vertex to corner position.

MUL offsetlength, vertex.texcoord[2].xyxx, vertex.texcoord[2].z;

MUL offsetvector, vertex.texcoord[1].y, offsetlength;

ADD vertexpos, offsetvector, vertex.position;

# Generate normal vector of the up vector.

MUL rightvector, vertex.texcoord[2].yxxx, {1.0, -1.0, 0.0, 0.0};

MUL offsetlength, rightvector, vertex.texcoord[2].z;

MUL offsetvector, vertex.texcoord[1].x, offsetlength;

ADD vertexpos, offsetvector, vertexpos;

MOV vertexpos.zw, {0.0, 0.0, 0.0, 1.0};

# Transform into world space.

DP4 result.position.x, ModelViewProj[0], vertexpos;

DP4 result.position.y, ModelViewProj[1], vertexpos;

DP4 result.position.z, ModelViewProj[2], vertexpos;

DP4 result.position.w, ModelViewProj[3], vertexpos;

MOV result.texcoord[0], vertex.texcoord[0];

MOV result.color, vertex.color;

END