protected override void PixelShader(PixelShaderInput input)
{
int x = input.RenderTargetX,
y = input.RenderTargetY;
Engine.BackBuffer.Data[y, x] +=
Intensity * Engine.AlbedoBuffer.Data[y, x];
}
protected override void PixelShader(PixelShaderInput input)
{
int x = input.RenderTargetX,
y = input.RenderTargetY;
Vector3 albedo = input.Color;
if (input.TextureCoord != null)
{
albedo = Engine.Model.Texture.Sample(
input.TextureCoord.Y, input.TextureCoord.X);
}
Engine.PositionBuffer.Data[y, x] = new Vector3(input.Position.X, input.Position.Y, input.Position.Z);
Engine.DepthBuffer.Data[y, x] = input.Position.Z;
Engine.NormalBuffer.Data[y, x] = new Vector3(input.Normal.X, input.Normal.Y, input.Normal.Z);
Engine.AlbedoBuffer.Data[y, x] = albedo;
Engine.SpecularIntensityBuffer.Data[y, x] = 15f;
Engine.SpecularPowerBuffer.Data[y, x] = 15f;
}
protected override void PixelShader(PixelShaderInput input)
{
int x = input.RenderTargetX,
y = input.RenderTargetY;
var L = Vector4.Normalize(LightPosition - input.Position);
var N = new Vector4(Engine.NormalBuffer.Data[y, x], 0);
var eye = Vector4.Normalize(new Vector4(-Engine.PositionBuffer.Data[y, x], 0));
var H = Vector4.Normalize(eye + L);
Engine.BackBuffer.Data[y, x] += Engine.AlbedoBuffer.Data[y, x] * Intensity *
Math.Max(0, Vector4.Dot(N, L)) * (1.0f / Vector4.Dot(L, L));
var NdotH = Vector4.Dot(N, H);
var power = Engine.SpecularPowerBuffer.Data[y, x];
var intensity = Engine.SpecularIntensityBuffer.Data[y, x];
Engine.BackBuffer.Data[y, x] += Engine.AlbedoBuffer.Data[y, x] *
(float)Math.Pow(NdotH, power) * intensity;
Engine.BackBuffer.Data[y, x] += new Vector3(1, 1, 1) *
(float)Math.Pow(NdotH, power + 10) * intensity;
}
protected override void PixelShader(PixelShaderInput input)
{
throw new NotImplementedException();
}
protected abstract void PixelShader(PixelShaderInput input);