bool IShader.SetAttribute(Xen.Graphics.ShaderSystem.IShaderSystem state, int name_uid, Matrix[] value)
{
throw new NotImplementedException();
}
public void Bind(Xen.Graphics.ShaderSystem.IShaderSystem state)
{
bool tc, ic;
int deviceID = state.Begin(this, 4, 0, out tc, out ic);
if (device != deviceID)
{
if (vs != null)
{
vs.Dispose();
}
if (ps != null)
{
ps.Dispose();
}
device = deviceID;
//internally, the code is smart enough to not duplicate creating the pixel shader
state.CreateShaders(out vs, out ps, vsb, psb, 0, 0, 0, 0);
}
float randX = (float)(random.NextDouble());
float randY = (float)(random.NextDouble());
this.psConstants[4].Z = randX;
this.psConstants[4].W = randY;
//random texture is limited in size, so randomly offset by a tiny amount
randX = (float)((random.NextDouble() * 2 - 1) / 256.0);
randY = (float)((random.NextDouble() * 2 - 1) / 256.0);
this.psConstants[5].X = randX;
this.psConstants[5].Y = randY;
state.SetShaders(this.vs, this.ps);
TextureSamplerState point = TextureSamplerState.PointFiltering;
state.SetPixelShaderSampler(0, randTexture, point);
if (positionSize != null)
{
state.SetPixelShaderSampler(1, positionSize, point);
}
if (velocityRotation != null)
{
state.SetPixelShaderSampler(2, velocityRotation, point);
}
if (this.colourSamplerIndex != -1)
{
state.SetPixelShaderSampler(this.colourSamplerIndex, colourValues, point);
}
if (this.userSamplerIndex != -1)
{
state.SetPixelShaderSampler(this.userSamplerIndex, userValues, point);
}
if (this.lifeSamplerIndex != -1)
{
state.SetPixelShaderSampler(this.lifeSamplerIndex, lifeTexture, point);
}
state.SetWorldViewProjectionMatrix(this.vreg.Matrix4Transpose(0), ref this.world);
const float randTextureSize = (float)RandomValueTexture.Resolution;
const float invRandTextureSize = 1.0f / randTextureSize;
if (enabledMoveVS || enabledAddVS)
{
for (int i = 0; i < 4; i++) //copy the WVP matrix
{
this.vsMoveConstants[i] = this.vreg.array[i];
}
vsMoveConstants[6] = new Vector4(randTextureSize, invRandTextureSize, 0, 0);
state.SetShaderConstants(this.vsMoveConstants, psConstants);
}
else
{
state.SetWindowSizeVector2(this.vreg.Vector2(4), ref this.viewsize);
this.vreg.array[6] = new Vector4(randTextureSize, invRandTextureSize, 0, 0);
state.SetShaderConstants(this.vreg.array, psConstants);
}
}
