pederbs
/
TDT4230_final_project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix transparancy check for nodes 

The previous method tried to read from meshes which had been freed from memory
This commit is contained in:
Peder Bergebakken Sundt 2019-03-22 18:01:42 +01:00
parent b4e66809cb
commit 84cbd5e5c7
3 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/sceneGraph.cpp
View File

@ -14,7 +14,7 @@ void SceneNode::setMesh(const Mesh* mesh) {
vertexArrayObjectID = cache[mesh]; vertexArrayObjectID = cache[mesh];
VAOIndexCount = mesh->indices.size(); VAOIndexCount = mesh->indices.size();
isVertexColored = ! mesh->colors.empty(); isVertexColored = ! mesh->colors.empty();
m_gemoetry = mesh; mesh_has_transparancy = mesh->has_transparancy;
} }
void SceneNode::setTexture( void SceneNode::setTexture(
const PNGImage* diffuse, const PNGImage* diffuse,
@ -28,7 +28,7 @@ void SceneNode::setTexture(
isNormalMapped = false; isNormalMapped = false;
isDisplacementMapped = false; isDisplacementMapped = false;
isReflectionMapped = false; isReflectionMapped = false;
t_diffuse = nullptr; tex_has_transparancy = false;
} }
if (diffuse) { if (diffuse) {
@ -36,7 +36,7 @@ void SceneNode::setTexture(
cache[diffuse] = generateTexture(*diffuse); cache[diffuse] = generateTexture(*diffuse);
diffuseTextureID = cache[diffuse]; diffuseTextureID = cache[diffuse];
isTextured = true; isTextured = true;
t_diffuse = diffuse; tex_has_transparancy = diffuse->has_transparancy;
} }
if (normal) { if (normal) {
@ -84,9 +84,9 @@ bool SceneNode::has_no_transforms() const {
} }
bool SceneNode::has_transparancy() const { bool SceneNode::has_transparancy() const {
return opacity < 1.0 return mesh_has_transparancy
|| t_diffuse && t_diffuse->has_transparancy || tex_has_transparancy
|| m_gemoetry && m_gemoetry->has_transparancy; || opacity < 0.98;
} }
SceneNode* SceneNode::clone() const { SceneNode* SceneNode::clone() const {

6
src/sceneGraph.hpp
View File

@ -82,9 +82,9 @@ struct SceneNode {
float displacementCoefficient = 0.1; // in units float displacementCoefficient = 0.1; // in units
uint reflectionTextureID; uint reflectionTextureID;
// has_transparancy // has_transparancy check
const Mesh* m_gemoetry = nullptr; bool mesh_has_transparancy = false;
const PNGImage* t_diffuse = nullptr; bool tex_has_transparancy = false;
// shader flags // shader flags
bool isTextured = false; bool isTextured = false;

3
src/utilities/modelLoader.cpp
View File

@ -176,6 +176,7 @@ SceneNode* loadModelScene(const std::string& dirname, const std::string& filenam
}); });
} }
mesh.has_transparancy = false;
if (aimesh->GetNumColorChannels() >= 1) if (aimesh->GetNumColorChannels() >= 1)
for (uint i=0; i < aimesh->mNumVertices; i++){ for (uint i=0; i < aimesh->mNumVertices; i++){
mesh.colors.push_back({ mesh.colors.push_back({
@ -184,6 +185,8 @@ SceneNode* loadModelScene(const std::string& dirname, const std::string& filenam
aimesh->mColors[0][i].b, aimesh->mColors[0][i].b,
aimesh->mColors[0][i].a, aimesh->mColors[0][i].a,
}); });
if (aimesh->mColors[0][i].a < 255)
mesh.has_transparancy = true;
} }
for (uint i=0; i < aimesh->mNumFaces; i++){ for (uint i=0; i < aimesh->mNumFaces; i++){