[RenderMonkey] ToonShading

[RenderMonkey] ToonShading

---

// Vertex Shader
struct VS_INPUT
{
	float4 mPosition : POSITION;
	float3 mNormal : NORMAL;
};

struct VS_OUTPUT
{
	float4 mPosition : POSITION;
	float3 mDiffuse : TEXCOORD1;
};

float4x4 gWorldViewProjectionMatrix;
float4x4 gInvWorldMatrix;

float4 gWorldLightPosition;

VS_OUTPUT vs_main(VS_INPUT Input)
{
	VS_OUTPUT Output;

	Output.mPosition = mul(Input.mPosition, gWorldViewProjectionMatrix);

	float3 objectLightPosition = mul(gWorldLightPosition, gInvWorldMatrix);
	float3 lightDir = normalize(Input.mPosition.xyz - objectLightPosition);

	Output.mDiffuse = dot(-lightDir, normalize(Input.mNormal));

	return(Output);
}

// Pixel Shader

float3 gSurfaceColor;

struct PS_INPUT
{
	float3 mDiffuse : TEXCOORD1;
};

float4 ps_main(PS_INPUT Input) : COLOR
{
   float3 diffuse = saturate(Input.mDiffuse);

   diffuse = ceil(diffuse * 5) / 5.0f;

   return float4(gSurfaceColor * diffuse.xyz, 1);
}

// Stream Mapping
// NORMAL, FLOAT3
// COLOR, COLOR
//
// gsurfaceColor : float3
//
// gWorldLightPostion : float4
//
// gWorldViewProjectionMatrix : matrix4
//
// gInvWorldMartix : matrix4