internal void Render(IRenderer renderer, GcmfRenderContext context)
{
foreach (GcmfTriangleStrip strip in Items)
{
strip.Render(renderer, context);
}
}
/// <summary>
/// Render this Gcmf object using the given renderer.
/// </summary>
public void Render(IRenderer renderer)
{
GcmfRenderContext context = new GcmfRenderContext(this);
// Set up the default transform matrix indexes in the context
// Those may get patched later in each triangle mesh
// Note that those are not re-set for every mesh!
// The specific indexes set on one mesh may affect the next meshes
Array.Copy(TransformMatrixDefaultIdxs, context.TransformMatrixIdxs, 8);
// Set up the materials required to render each mesh
for (int i = 0; i < Materials.Count; i++)
{
Materials[i].Render(renderer, i);
}
// Render each mesh
for (int i = 0; i < Meshes.Count; i++)
{
renderer.BeginObject(string.Format("Mesh{0}", i));
Meshes[i].RenderInternal(renderer, context);
renderer.EndObject();
}
// Clean up the materials in order to have a clean ground for the next object
renderer.ClearMaterialList();
}
internal void Render(IRenderer renderer, GcmfRenderContext context)
{
// Convert GcmfVertex list to ModelVertex list
ModelVertex[] modelVertices = new ModelVertex[Items.Count];
for (int i = 0; i < Items.Count; i++)
{
GcmfVertex gcmfVtx = Items[i];
// Copy the data from the GCMF vertex to the ModelVertex
ModelVertex modelVtx = new ModelVertex()
{
Position = gcmfVtx.Position,
Normal = gcmfVtx.Normal,
VertexColor = gcmfVtx.VertexColor,
PrimaryTexCoord = gcmfVtx.PrimaryTexCoord
};
// Apply transformation matrices to the vertex
if (gcmfVtx.TransformMatrixRef != null && gcmfVtx.TransformMatrixRef.Value != 0)
{
if (gcmfVtx.TransformMatrixRef.Value > 24 || (gcmfVtx.TransformMatrixRef % 3) != 0)
{
throw new InvalidGmaFileException("Invalid TransformMatrixRef for the transform matrix rendering.");
}
int rIdx = (gcmfVtx.TransformMatrixRef.Value / 3) - 1;
if (context.TransformMatrixIdxs[rIdx] == byte.MaxValue)
{
throw new InvalidGmaFileException("The transform matrix associated to the matrix reference is not defined.");
}
// Transform the position and normal vectors according to the transform matrix
GcmfTransformMatrix tMtx = context.Gcmf.TransformMatrices[context.TransformMatrixIdxs[rIdx]];
modelVtx.Position = tMtx.TransformPosition(modelVtx.Position);
if (modelVtx.Normal != null)
{
modelVtx.Normal = tMtx.TransformNormal(modelVtx.Normal.Value);
}
}
modelVertices[i] = modelVtx;
}
// Write triangle strip
renderer.WriteTriangleStrip(modelVertices);
}
/// <summary>
/// This is the same as render(), but it skips the material setup step,
/// so when rendering all triangle meshes, they only need to be set up once.
/// </summary>
internal void RenderInternal(IRenderer renderer, GcmfRenderContext context)
{
/*
* if (Layer == GcmfTriangleMeshLayer.Layer1)
* {
* GL.Disable(EnableCap.Blend);
* GL.DepthMask(true);
* }
* else
* {
* GL.DepthMask(false);
* GL.Enable(EnableCap.Blend);
* GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
* }
*/
// Set up the renderer according to the render flags set
renderer.SetTwoSidedFaces((RenderFlags & RenderFlag.TwoSided) != 0);
// Very rarely a mesh with a material id set to 0xFFFF ((ushort)-1) is seen.
// I believe this is just a that it didn't have a material assigned.
if (PrimaryMaterialIdx != ushort.MaxValue)
{
renderer.BindMaterial(PrimaryMaterialIdx);
}
else
{
renderer.UnbindMaterial();
}
// Patch the non-null default transformation matrix indexes (for obj1)
// with the specific indexes set for this mesh
for (int i = 0; i < TransformMatrixSpecificIdxsObj1.Length; i++)
{
if (TransformMatrixSpecificIdxsObj1[i] != byte.MaxValue)
{
context.TransformMatrixIdxs[i] = TransformMatrixSpecificIdxsObj1[i];
}
}
renderer.SetFrontFaceDirection(FrontFaceDirection.Ccw);
Obj1StripsCcw.Render(renderer, context);
renderer.SetFrontFaceDirection(FrontFaceDirection.Cw);
Obj1StripsCw.Render(renderer, context);
// Patch the non-null default transformation matrix indexes (for obj2)
// with the specific indexes set for this mesh
for (int i = 0; i < TransformMatrixSpecificIdxsObj2.Length; i++)
{
if (TransformMatrixSpecificIdxsObj2[i] != byte.MaxValue)
{
context.TransformMatrixIdxs[i] = TransformMatrixSpecificIdxsObj2[i];
}
}
renderer.SetFrontFaceDirection(FrontFaceDirection.Ccw);
Obj2StripsCcw.Render(renderer, context);
renderer.SetFrontFaceDirection(FrontFaceDirection.Cw);
Obj2StripsCw.Render(renderer, context);
}
