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Moved Texture writing into its own function

pull/3580/head
Trevor David Black 2020-05-01 08:35:04 -07:00
parent 2c9d3bea64
commit a0aa067b5f
2 changed files with 122 additions and 147 deletions
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258
code/Pbrt/PbrtExporter.cpp
View File

@ -376,7 +376,10 @@ void PbrtExporter::WriteWorldDefinition() {
mOutput << "WorldBegin" << std::endl;
// Check to see if the scene has Embedded Textures
WriteEmbeddedTextures();
CheckEmbeddedTextures();
// Print Textures
WriteTextures();
// Print materials
WriteMaterials();
@ -398,7 +401,7 @@ void PbrtExporter::WriteWorldDefinition() {
}
void PbrtExporter::WriteEmbeddedTextures() {
void PbrtExporter::CheckEmbeddedTextures() {
mOutput << std::endl;
mOutput << "###################" << std::endl;
mOutput << "# Checking Embededded Textures:" << std::endl;
@ -412,6 +415,62 @@ void PbrtExporter::WriteEmbeddedTextures() {
mOutput << "# ERROR: PBRT does not support Embedded Textures" << std::endl;
}
void PbrtExporter::WriteTextures() {
mOutput << std::endl;
mOutput << "###################" << std::endl;
mOutput << "# Writing Textures:" << std::endl;
mOutput << "####################" << std::endl;
std::stringstream texStream;
int numTotalTextures = 0;
C_STRUCT aiString path;
aiTextureMapping mapping;
unsigned int uvindex;
ai_real blend;
aiTextureOp op;
aiTextureMapMode mapmode[3];
// For every material in the scene,
for (int m = 0 ; m < mScene->mNumMaterials; m++) {
auto material = mScene->mMaterials[m];
// Parse through all texture types,
for (int tt = 1; tt <= aiTextureType_UNKNOWN; tt++) {
int ttCount = material->GetTextureCount(aiTextureType(tt));
// ... and get every texture
for (int t = 0; t < ttCount; t++) {
// TODO write out texture specifics
// TODO UV transforms may be material specific
// so those may need to be baked into unique tex name
material->GetTexture(
aiTextureType(tt),
t,
&path,
&mapping,
&uvindex,
&blend,
&op,
mapmode);
std::string spath = std::string(path.C_Str());
std::replace(spath.begin(), spath.end(), '\\', '/');
std::string name = GetTextureName(spath, tt);
if (mTextureSet.find(name) == mTextureSet.end()) {
numTotalTextures++;
texStream << "Texture \"" << name << "\" \"spectrum\" "
<< "\"string filename\" \"" << spath << "\"" << std::endl;
}
}
}
}
// Write out to file
mOutput << "# - Number of Textures found in scene: ";
mOutput << numTotalTextures << std::endl;
mOutput << texStream.str();
}
void PbrtExporter::WriteMaterials() {
mOutput << std::endl;
mOutput << "####################" << std::endl;
@ -446,23 +505,38 @@ void PbrtExporter::WriteMaterial(int m) {
mOutput << "# - Number of Material Properties: "
<< material->mNumProperties << std::endl;
// print out texture properties parsing through by type
// then print out any new textures
WriteNewTextures(material);
// Print out texture type counts
int textureCounts[aiTextureType_UNKNOWN];
for (int i = 1; i <= aiTextureType_UNKNOWN; i++) {
textureCounts[i-1] = material->GetTextureCount(aiTextureType(i));
}
mOutput << "# - Texture Type Counts:" << std::endl;
for (int tt = 1; tt <= aiTextureType_UNKNOWN; tt++) {
mOutput << "# - " << TextureTypeToString(aiTextureType(tt));
mOutput << ": " << textureCounts[tt - 1] << std::endl;
}
// TODO IMMEDIATELY
// Determine if this material should be one of:
// - disney (has BASE_COLOR?)
// Decide which material PBRT should set this to
// if contains any PBR textures, then Disney
if( textureCounts[aiTextureType_BASE_COLOR -1] > 0
|| textureCounts[aiTextureType_NORMAL_CAMERA -1] > 0
|| textureCounts[aiTextureType_EMISSION_COLOR -1] > 0
|| textureCounts[aiTextureType_METALNESS -1] > 0
|| textureCounts[aiTextureType_DIFFUSE_ROUGHNESS -1] > 0
|| textureCounts[aiTextureType_AMBIENT_OCCLUSION -1] > 0) {
WriteDisneyMaterial(material);
return;
}
else {
WriteUberMaterial(material);
return;
}
// TODO
// - matte (has only kd?)
// - metal (never? has only ks?)
// - mirror (has reflection)
// - plastic (never?)
// - uber (general?)
// Use MakeNamedMaterial to give variable names to materials
mOutput << "MakeNamedMaterial \"" << materialName.C_Str() << "\""
<< " \"string type\" \"uber\"" << std::endl;
}
@ -475,7 +549,6 @@ void PbrtExporter::WriteLights() {
mOutput << mScene->mNumLights << std::endl;
// TODO remove default ambient term when numCameras == 0
// For now, ambient may only be necessary for debug
mOutput << "# - Creating a default blueish ambient light source" << std::endl;
mOutput << "LightSource \"infinite\" \"rgb L\" [0.4 0.45 0.5]" << std::endl;
@ -490,9 +563,6 @@ void PbrtExporter::WriteObjects() {
mOutput << "# - Number of Meshes found in scene: ";
mOutput << mScene->mNumMeshes << std::endl;
if (mScene->mNumMeshes == 0)
return;
for (int i = 0 ; i < mScene->mNumMeshes; i++) {
WriteObject(i);
}
@ -651,141 +721,41 @@ void PbrtExporter::WriteObjectInstance(aiNode* node, aiMatrix4x4 parent) {
}
}
void PbrtExporter::WriteNewTextures(aiMaterial* material) {
// Print out texture type counts
std::string PbrtExporter::GetTextureName(
std::string spath, unsigned int textureType) {
std::stringstream name;
name << TextureTypeToString(aiTextureType(textureType));
name << ":" << spath;
return name.str();
}
void PbrtExporter::WriteDisneyMaterial(aiMaterial* material) {
auto materialName = material->GetName();
// Get texture type counts
int textureCounts[aiTextureType_UNKNOWN];
for (int i = 1; i <= aiTextureType_UNKNOWN; i++) {
textureCounts[i-1] = material->GetTextureCount(aiTextureType(i));
}
mOutput << "# - Texture Type Counts:" << std::endl;
mOutput << "# - aiTextureType_DIFFUSE: " << textureCounts[0] << std::endl;
mOutput << "# - aiTextureType_SPECULAR: " << textureCounts[1] << std::endl;
mOutput << "# - aiTextureType_AMBIENT: " << textureCounts[2] << std::endl;
mOutput << "# - aiTextureType_EMISSIVE: " << textureCounts[3] << std::endl;
mOutput << "# - aiTextureType_HEIGHT: " << textureCounts[4] << std::endl;
mOutput << "# - aiTextureType_NORMALS: " << textureCounts[5] << std::endl;
mOutput << "# - aiTextureType_SHININESS: " << textureCounts[6] << std::endl;
mOutput << "# - aiTextureType_OPACITY: " << textureCounts[7] << std::endl;
mOutput << "# - aiTextureType_DISPLACEMENT: " << textureCounts[8] << std::endl;
mOutput << "# - aiTextureType_LIGHTMAP: " << textureCounts[9] << std::endl;
mOutput << "# - aiTextureType_REFLECTION: " << textureCounts[10] << std::endl;
mOutput << "# - aiTextureType_BASE_COLOR: " << textureCounts[11] << std::endl;
mOutput << "# - aiTextureType_NORMAL_CAMERA: " << textureCounts[12] << std::endl;
mOutput << "# - aiTextureType_EMISSION_COLOR: " << textureCounts[13] << std::endl;
mOutput << "# - aiTextureType_METALNESS: " << textureCounts[14] << std::endl;
mOutput << "# - aiTextureType_DIFFUSE_ROUGHNESS: " << textureCounts[15] << std::endl;
mOutput << "# - aiTextureType_AMBIENT_OCCLUSION: " << textureCounts[16] << std::endl;
mOutput << "# - aiTextureType_UNKNOWN: " << textureCounts[17] << std::endl;
for (int tt = 1; tt <= aiTextureType_UNKNOWN; tt++) {
C_STRUCT aiString path;
//aiTextureMapping mapping;
//unsigned int uvindex;
//ai_real blend;
//aiTextureOp op;
aiTextureMapMode mapmode;
// Get diffuse
std::stringstream diffuse;
for (int t = 0; t < textureCounts[tt-1]; t++) {
material->GetTexture(
aiTextureType(tt),
t,
&path,
NULL,
NULL,
NULL,
NULL,
&mapmode);
// Use MakeNamedMaterial to give variable names to materials
mOutput << "MakeNamedMaterial \"" << materialName.C_Str() << "\""
<< " \"string type\" \"disney\"" << std::endl;
std::stringstream name;
std::string spath = std::string(path.C_Str());
std::replace(spath.begin(), spath.end(), '\\', '/');
name << spath << "_";
switch(aiTextureType(tt)) {
case aiTextureType_DIFFUSE :
name << "diffuse";
break;
case aiTextureType_SPECULAR :
name << "specular";
break;
case aiTextureType_AMBIENT :
name << "ambient";
break;
case aiTextureType_EMISSIVE :
name << "emissive";
break;
case aiTextureType_HEIGHT :
name << "height";
break;
case aiTextureType_NORMALS :
name << "normals";
break;
case aiTextureType_SHININESS :
name << "shininess";
break;
case aiTextureType_OPACITY :
name << "opacity";
break;
case aiTextureType_DISPLACEMENT :
name << "displacement";
break;
case aiTextureType_LIGHTMAP :
name << "lightmap";
break;
case aiTextureType_REFLECTION :
name << "reflection";
break;
case aiTextureType_BASE_COLOR :
name << "base_color";
break;
case aiTextureType_NORMAL_CAMERA :
name << "normal_camera";
break;
case aiTextureType_EMISSION_COLOR :
name << "emission_color";
break;
case aiTextureType_METALNESS :
name << "metalness";
break;
case aiTextureType_DIFFUSE_ROUGHNESS :
name << "diffuse_roughness";
break;
case aiTextureType_AMBIENT_OCCLUSION :
name << "ambient_occlusion";
break;
case aiTextureType_UNKNOWN :
name << "unknown";
break;
default :
break;
}
if (mTextureSet.find(name.str()) == mTextureSet.end()) {
mOutput << "Texture \"" << name.str() << "\" \"spectrum\" "
<< "\"string filename\" \"" << spath << "\" "
<< "\"string wrap\" \"";
switch (mapmode) {
case aiTextureMapMode_Wrap :
mOutput << "repeat\"" << std::endl;
break;
case aiTextureMapMode_Clamp :
mOutput << "clamp\"" << std::endl;
break;
case aiTextureMapMode_Decal :
mOutput << "black\"" << std::endl;
break;
case aiTextureMapMode_Mirror :
// PBRT doesn't support mirroring textures
mOutput << "repeat\"" << std::endl;
break;
default:
mOutput << "ERROR\"" << std::endl;
break;
}
}
}
}
}
void PbrtExporter::WriteUberMaterial(aiMaterial* material) {
auto materialName = material->GetName();
// Use MakeNamedMaterial to give variable names to materials
mOutput << "MakeNamedMaterial \"" << materialName.C_Str() << "\""
<< " \"string type\" \"uber\"" << std::endl;
}
#endif // ASSIMP_BUILD_NO_PBRT_EXPORTER
#endif // ASSIMP_BUILD_NO_EXPORT

11
code/Pbrt/PbrtExporter.h
View File

@ -123,13 +123,18 @@ private:
void WriteCameras();
void WriteCamera(int i);
// Writing the Embedded Texture data
void WriteEmbeddedTextures();
// Check for Embedded Texture data
void CheckEmbeddedTextures();
// Writing the Texture data
void WriteTextures();
std::string GetTextureName(std::string path, unsigned int textureType);
// Writing the Material data
void WriteMaterials();
void WriteMaterial(int i);
void WriteNewTextures(aiMaterial* material);
void WriteDisneyMaterial(aiMaterial* material);
void WriteUberMaterial(aiMaterial* material);
// Writing the Light data
void WriteLights();