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handle case of meshes with multiple parts with different materials better, don't mix them in with single material meshes

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This commit is contained in:
ZappoMan 2014-10-16 14:32:07 -07:00
parent d1f263ecc5
commit 148b880bb1
1 changed files with 22 additions and 3 deletions
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25
interface/src/renderer/Model.cpp
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@ -1334,7 +1334,22 @@ void Model::segregateMeshGroups() {
bool hasTangents = !mesh.tangents.isEmpty();
bool hasSpecular = mesh.hasSpecularTexture();
bool isSkinned = state.clusterMatrices.size() > 1;
QString materialID = mesh.parts.at(0).materialID;
QString materialID;
// create a material name from all the parts. If there's one part, this will be a single material and its
// true name. If however the mesh has multiple parts the name will be all the part's materials mashed together
// which will result in those parts being sorted away from single material parts.
QString lastPartMaterialID;
foreach(FBXMeshPart part, mesh.parts) {
if (part.materialID != lastPartMaterialID) {
materialID += part.materialID;
}
lastPartMaterialID = part.materialID;
}
const bool wantDebug = false;
if (wantDebug) {
qDebug() << "materialID:" << materialID << "parts:" << mesh.parts.size();
}
if (translucentMesh && !hasTangents && !hasSpecular && !isSkinned) {
@ -1712,8 +1727,12 @@ int Model::renderMeshes(RenderMode mode, bool translucent, float alphaThreshold,
} else {
if (dontReduceMaterialSwitches || lastMaterialID != part.materialID) {
//qDebug() << "Material Changed ---------------------------------------------";
//qDebug() << "NEW part.materialID:" << part.materialID;
const bool wantDebug = false;
if (wantDebug) {
qDebug() << "Material Changed ---------------------------------------------";
qDebug() << "part INDEX:" << j;
qDebug() << "NEW part.materialID:" << part.materialID;
}
glm::vec4 diffuse = glm::vec4(part.diffuseColor, part.opacity);
if (!(translucent && alphaThreshold == 0.0f)) {