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Support for map channels

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This commit is contained in:
Josh Yelon 2008-08-21 05:28:40 +00:00
parent a78fa265f6
commit 78a5739c04
2 changed files with 31 additions and 6 deletions
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34
pandatool/src/maxegg/maxToEggConverter.cxx
View File

@ -619,6 +619,8 @@ make_polyset(INode *max_node, Mesh *mesh,
Face face = mesh->faces[iFace];
const PandaMaterial &pmat = get_panda_material(max_node->GetMtl(), face.getMatID());
// Get the vertices for the polygon.
for ( int iVertex=0; iVertex < 3; iVertex++ ) {
EggVertex vert;
@ -638,9 +640,12 @@ make_polyset(INode *max_node, Mesh *mesh,
vert.set_normal(n3d);
// Get the UVs for this vertex
if (mesh->getNumTVerts()) {
UVVert vertTexCoord = mesh->getTVert(mesh->tvFace[iFace].t[iVertex]);
vert.set_uv( TexCoordd(vertTexCoord.x, vertTexCoord.y));
for (int iChan=0; iChan<pmat._map_channels.size(); iChan++) {
int channel = pmat._map_channels[iChan];
ostringstream uvname;
uvname << "m" << channel;
UVVert uvw = get_max_vertex_texcoord(mesh, iFace, iVertex, channel);
vert.set_uv( uvname.str(), TexCoordd(uvw.x, uvw.y));
}
vert.set_external_index(face.v[iVertex]);
@ -669,7 +674,6 @@ make_polyset(INode *max_node, Mesh *mesh,
egg_poly->set_vertex(2, verts[0]);
}
const PandaMaterial &pmat = get_panda_material(max_node->GetMtl(), face.getMatID());
for (int i=0; i<pmat._texture_list.size(); i++) {
egg_poly->set_texture(pmat._texture_list[i]);
}
@ -685,7 +689,20 @@ make_polyset(INode *max_node, Mesh *mesh,
}
}
UVVert MaxToEggConverter::get_max_vertex_texcoord(Mesh *mesh, int faceNo, int vertNo, int channel) {
// extract the texture coordinate
UVVert uvVert(0,0,0);
if(mesh->mapSupport(channel)) {
TVFace *pTVFace = mesh->mapFaces(channel);
UVVert *pUVVert = mesh->mapVerts(channel);
uvVert = pUVVert[pTVFace[faceNo].t[vertNo]];
} else if(mesh->numTVerts > 0) {
uvVert = mesh->tVerts[mesh->tvFace[faceNo].t[vertNo]];
}
return uvVert;
}
Point3 MaxToEggConverter::get_max_vertex_normal(Mesh *mesh, int faceNo, int vertNo)
{
Face f = mesh->faces[faceNo];
@ -879,12 +896,14 @@ get_panda_material(Mtl *mtl, MtlID matID) {
bool has_diffuse_texture = false;
bool has_trans_texture = false;
Point3 diffuseColor = Point3(1, 1, 1);
int mapChan = 1;
// Access the Diffuse map and see if it's a Bitmap texture
diffuseTexmap = maxMaterial->GetSubTexmap(ID_DI);
if (diffuseTexmap && (diffuseTexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0))) {
has_diffuse_texture = true;
diffuseBitmapTex = (BitmapTex *) diffuseTexmap;
mapChan = diffuseBitmapTex->GetMapChannel();
}
// Access the Opacity map and see if it's a Bitmap texture
@ -892,6 +911,7 @@ get_panda_material(Mtl *mtl, MtlID matID) {
if (transTexmap && (transTexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0))) {
has_trans_texture = true;
transBitmapTex = (BitmapTex *) transTexmap;
mapChan = transBitmapTex->GetMapChannel();
}
if (has_diffuse_texture || has_trans_texture) {
@ -942,11 +962,15 @@ get_panda_material(Mtl *mtl, MtlID matID) {
tex.set_format(EggTexture::F_alpha);
apply_texture_properties(tex, maxMaterial);
}
ostringstream uvname;
uvname << "m" << mapChan;
tex.set_uv_name(uvname.str());
EggTexture *new_tex =
_textures.create_unique_texture(tex, ~EggTexture::E_tref_name);
pandaMat._texture_list.push_back(new_tex);
pandaMat._map_channels.push_back(mapChan);
// The existence of a texture on either color channel completely
// replaces the corresponding flat color.
if (!has_diffuse_texture) {

3
pandatool/src/maxegg/maxToEggConverter.h
View File

@ -48,6 +48,7 @@ class MaxToEggConverter {
struct PandaMaterial {
std::vector<EggTexture*> _texture_list;
Colorf _color;
std::vector<int> _map_channels;
};
typedef std::map<Mtl*,PandaMaterial> MaterialMap;
MaxEggOptions *_options;
@ -80,8 +81,8 @@ class MaxToEggConverter {
EggGroup *egg_group,
Shader *default_shader = NULL);
//Gets the vertex normal for a given face and vertex. Go figure.
Point3 get_max_vertex_normal(Mesh *mesh, int faceNo, int vertNo);
UVVert get_max_vertex_texcoord(Mesh *mesh, int faceNo, int vertNo, int channel);
void get_vertex_weights(INode *max_node, EggVertexPool *vpool);