public static string GetSamplerMipArgs(
AbstractMaterialNode node, Texture2DMipSamplingMode mode, Mip2DSamplingInputs inputs, GenerationMode generationMode)
{
switch (mode)
{
case Texture2DMipSamplingMode.LOD:
return(string.Format(", {0}", node.GetSlotValue(inputs.lodInput, generationMode)));
case Texture2DMipSamplingMode.Bias:
return(string.Format(", {0}", node.GetSlotValue(inputs.biasInput, generationMode)));
case Texture2DMipSamplingMode.Gradient:
return(string.Format(", {0}, {1}", node.GetSlotValue(inputs.ddxInput, generationMode), node.GetSlotValue(inputs.ddyInput, generationMode)));
}
return("");
}
public static Mip2DSamplingInputs CreateMip2DSamplingInputs(
AbstractMaterialNode node, Texture2DMipSamplingMode mode, Mip2DSamplingInputs previousInputs,
int biasInputId, int lodInputId, int ddxInputId, int ddyInputId)
{
if (previousInputs.bias != null)
{
node.RemoveSlot(previousInputs.bias.id);
}
if (previousInputs.lod != null)
{
node.RemoveSlot(previousInputs.lod.id);
}
if (previousInputs.ddx != null)
{
node.RemoveSlot(previousInputs.ddx.id);
}
if (previousInputs.ddy != null)
{
node.RemoveSlot(previousInputs.ddy.id);
}
Mip2DSamplingInputs inputs = Mip2DSamplingInputs.NewDefault();
inputs.biasInput = biasInputId;
inputs.lodInput = lodInputId;
inputs.ddxInput = ddxInputId;
inputs.ddyInput = ddyInputId;
switch (mode)
{
case Texture2DMipSamplingMode.LOD:
inputs.lod = node.AddSlot(new Vector1MaterialSlot(lodInputId, kLodName, kLodName, SlotType.Input, 0.0f));
break;
case Texture2DMipSamplingMode.Bias:
inputs.bias = node.AddSlot(new Vector1MaterialSlot(biasInputId, kBiasName, kBiasName, SlotType.Input, 0.0f));
break;
case Texture2DMipSamplingMode.Gradient:
inputs.ddx = node.AddSlot(new Vector2MaterialSlot(ddxInputId, kDdxName, kDdxName, SlotType.Input, new Vector2(0.0f, 0.0f)));
inputs.ddy = node.AddSlot(new Vector2MaterialSlot(ddyInputId, kDdyName, kDdyName, SlotType.Input, new Vector2(0.0f, 0.0f)));
break;
}
return(inputs);
}
public static string Get2DTextureSamplingMacro(Texture2DMipSamplingMode mode, bool usePlatformMacros, bool isArray)
{
if (isArray)
{
if (usePlatformMacros)
{
switch (mode)
{
case Texture2DMipSamplingMode.Standard:
return("PLATFORM_SAMPLE_TEXTURE2D_ARRAY");
case Texture2DMipSamplingMode.LOD:
return("PLATFORM_SAMPLE_TEXTURE2D_ARRAY_LOD");
case Texture2DMipSamplingMode.Bias:
return("PLATFORM_SAMPLE_TEXTURE2D_ARRAY_BIAS");
case Texture2DMipSamplingMode.Gradient:
return("PLATFORM_SAMPLE_TEXTURE2D_ARRAY_GRAD");
}
}
else
{
switch (mode)
{
case Texture2DMipSamplingMode.Standard:
return("SAMPLE_TEXTURE2D_ARRAY");
case Texture2DMipSamplingMode.LOD:
return("SAMPLE_TEXTURE2D_ARRAY_LOD");
case Texture2DMipSamplingMode.Bias:
return("SAMPLE_TEXTURE2D_ARRAY_BIAS");
case Texture2DMipSamplingMode.Gradient:
return("SAMPLE_TEXTURE2D_ARRAY_GRAD");
}
}
}
else
{
if (usePlatformMacros)
{
switch (mode)
{
case Texture2DMipSamplingMode.Standard:
return("PLATFORM_SAMPLE_TEXTURE2D");
case Texture2DMipSamplingMode.LOD:
return("PLATFORM_SAMPLE_TEXTURE2D_LOD");
case Texture2DMipSamplingMode.Bias:
return("PLATFORM_SAMPLE_TEXTURE2D_BIAS");
case Texture2DMipSamplingMode.Gradient:
return("PLATFORM_SAMPLE_TEXTURE2D_GRAD");
}
}
else
{
switch (mode)
{
case Texture2DMipSamplingMode.Standard:
return("SAMPLE_TEXTURE2D");
case Texture2DMipSamplingMode.LOD:
return("SAMPLE_TEXTURE2D_LOD");
case Texture2DMipSamplingMode.Bias:
return("SAMPLE_TEXTURE2D_BIAS");
case Texture2DMipSamplingMode.Gradient:
return("SAMPLE_TEXTURE2D_GRAD");
}
}
}
return("");
}