/// <summary>
/// Calculate the shader selector value based on the original shader ID, the render batch and general
/// information from the model.
/// </summary>
/// <param name="baseShaderID">The original shader ID. Typically 0.</param>
/// <param name="renderBatch">The render batch to which the ID belongs.</param>
/// <param name="model">The model to which the batch belongs.</param>
/// <returns>A new shader selector value.</returns>
public static ushort GetRuntimeShaderID(ushort baseShaderID, MDXRenderBatch renderBatch, Warcraft.MDX.MDX model)
{
// The shader ID is already "modernized", so there's nothing to do.
if ((baseShaderID & 0x8000) > 0)
{
return(baseShaderID);
}
var operationCount = renderBatch.TextureCount;
var material = model.Materials[renderBatch.MaterialIndex];
ushort newShaderID = 0;
if (!model.GlobalModelFlags.HasFlag(ModelObjectFlags.HasBlendModeOverrides))
{
var textureMapping = model.TextureMappingLookupTable[renderBatch.TextureMappingLookupTableIndex];
bool isEnvMapped = textureMapping == EMDXTextureMappingType.Environment;
bool nonOpaqueBlendingMode = material.BlendMode != BlendingMode.Opaque;
if (nonOpaqueBlendingMode)
{
newShaderID = 1;
if (isEnvMapped)
{
newShaderID |= 8;
}
}
newShaderID *= 16;
if (textureMapping == EMDXTextureMappingType.T2)
{
newShaderID |= 0x4000;
}
return(newShaderID);
}
if (operationCount == 0)
{
return(baseShaderID);
}
var v19 = new short[] { 0, 0 };
for (int opIndex = 0; opIndex < operationCount; ++opIndex)
{
int blendingOverrideIndex = baseShaderID + opIndex;
var blendingOverride = model.BlendMapOverrides[blendingOverrideIndex];
if (opIndex == 0 && material.BlendMode == BlendingMode.Opaque)
{
blendingOverride = BlendingMode.Opaque;
}
int textureMappingOverrideIndex = renderBatch.TextureMappingLookupTableIndex + opIndex;
EMDXTextureMappingType textureSlotOverride = model.TextureMappingLookupTable[textureMappingOverrideIndex];
bool isEnvMapped = textureSlotOverride == EMDXTextureMappingType.Environment;
if (isEnvMapped)
{
v19[opIndex] = (short)((short)blendingOverride | 8);
}
else
{
v19[opIndex] = (short)blendingOverride;
}
if (textureSlotOverride == EMDXTextureMappingType.Environment && (opIndex + 1) == operationCount)
{
newShaderID |= 0x4000;
}
}
newShaderID |= (ushort)(v19[1] | (v19[0] * 16));
return(newShaderID);
}
/// <summary>
/// Calculate the shader selector value based on the original shader ID, the render batch and general
/// information from the model.
/// </summary>
/// <param name="baseShaderID">The original shader ID. Typically 0.</param>
/// <param name="renderBatch">The render batch to which the ID belongs.</param>
/// <param name="model">The model to which the batch belongs.</param>
/// <returns>A new shader selector value.</returns>
public static ushort GetRuntimeShaderID(ushort baseShaderID, MDXRenderBatch renderBatch, Warcraft.MDX.MDX model)
{
// The shader ID is already "modernized", so there's nothing to do.
if ((baseShaderID & 0x8000) > 0)
{
return(baseShaderID);
}
var operationCount = renderBatch.TextureCount;
var material = model.Materials ![renderBatch.MaterialIndex];
