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Code Issues Releases Wiki Activity

fix GLTF export

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This commit is contained in:
Timur Gagiev 2020-08-21 03:18:20 +03:00
parent 7c728c4632
commit 20678ce60c
1 changed files with 14 additions and 5 deletions
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19
src/extension.h
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@ -32,10 +32,13 @@ namespace Extension {
vec3 coord;
vec3 normal;
vec2 texCoord;
ubyte4 color;
ubyte4 joints;
ubyte4 weights;
};
typedef uint32 ModelIndex;
char name[256];
sprintf(name, "models/dump/%d.glb", int(model.type));
@ -86,7 +89,7 @@ namespace Extension {
int rotationOffset = translationOffset + animFrames * sizeof(vec3);
int verticesOffset = rotationOffset + model.mCount * animFrames * sizeof(quat);
int indicesOffset = verticesOffset + vCount * sizeof(ModelVertex);
int bufferSize = indicesOffset + iCount * sizeof(Index);
int bufferSize = indicesOffset + iCount * sizeof(ModelIndex);
char *bufferData = new char[bufferSize];
@ -114,7 +117,8 @@ namespace Extension {
dst.normal = flip * dst.normal;
dst.texCoord *= (1.0f / 32767.0f);
dst.joints = ubyte4(uint8(src.coord.w), 0, 0, 0);
dst.color = src.color;
dst.joints = ubyte4(uint8(src.coord.w / 2), 0, 0, 0);
dst.weights = ubyte4(255, 0, 0, 0);
vMin.x = min(vMin.x, dst.coord.x);
@ -125,7 +129,11 @@ namespace Extension {
vMax.y = max(vMax.y, dst.coord.y);
vMax.z = max(vMax.z, dst.coord.z);
}
memcpy(bufferData + indicesOffset, indices, sizeof(Index) * iCount);
for (int i = 0; i < iCount; i++) {
ModelIndex &dst = ((ModelIndex*)(bufferData + indicesOffset))[i];
dst = indices[i];
}
GLTF *gltf = new GLTF();
@ -137,14 +145,15 @@ namespace Extension {
delete[] vertices;
delete[] indices;
gltf->addAccessor(0, 0, iCount, GLTF::SCALAR, GL_UNSIGNED_SHORT); // 0
gltf->addAccessor(0, 0, iCount, GLTF::SCALAR, GL_UNSIGNED_INT); // 0
gltf->addAccessor(1, (int)OFFSETOF(ModelVertex, coord), vCount, GLTF::VEC3, GL_FLOAT, false, vMin, vMax); // 1
gltf->addAccessor(1, (int)OFFSETOF(ModelVertex, normal), vCount, GLTF::VEC3, GL_FLOAT); // 2
gltf->addAccessor(1, (int)OFFSETOF(ModelVertex, texCoord), vCount, GLTF::VEC2, GL_FLOAT); // 3
//gltf->addAccessor(1, (int)OFFSETOF(ModelVertex, color), vCount, GLTF::VEC4, GL_UNSIGNED_BYTE); // TODO
gltf->addAccessor(1, (int)OFFSETOF(ModelVertex, joints), vCount, GLTF::VEC4, GL_UNSIGNED_BYTE); // 4
gltf->addAccessor(1, (int)OFFSETOF(ModelVertex, weights), vCount, GLTF::VEC4, GL_UNSIGNED_BYTE, true); // 5
gltf->addBufferView(0, 0, indicesOffset, sizeof(Index) * iCount); // 0
gltf->addBufferView(0, 0, indicesOffset, sizeof(ModelIndex) * iCount); // 0
gltf->addBufferView(0, sizeof(ModelVertex), verticesOffset, sizeof(ModelVertex) * vCount); // 1
sprintf(name, "%d_mesh", int(model.type));