screw up obj files indices and vetices when trying to index an unindexed one

[Abdelilah-Majid]

this is my code :

`

for (int i = 0; i < g_model.model.meshCount; i++) {

size_t index_count = g_model.model.meshes[i].triangleCount * 3;

unsigned int *indices = malloc(sizeof(unsigned int) * index_count);
g_model.model.meshes[i].indices = (unsigned short *)malloc(sizeof(unsigned short) * index_count);

unsigned int *remap = malloc(sizeof(unsigned int) * index_count); // allocate temporary memory for the remap table
size_t vertex_count = meshopt_generateVertexRemap(remap, NULL, index_count, g_model.model.meshes[i].vertices, index_count, sizeof(float));

float *vertices = malloc(sizeof(float) * vertex_count);

meshopt_remapIndexBuffer(indices, NULL, index_count, remap);

meshopt_remapVertexBuffer(vertices, g_model.model.meshes[i].vertices, index_count, sizeof(float), remap);

for (unsigned short j = 0; j < index_count; j++)
{
g_model.model.meshes[i].indices[j] = (unsigned short)indices[j];
printf("indices_%d: %d\n",j,indices[j]);
}

g_model.model.meshes[i].vertices = vertices;

}

`

and this what happend:

i am using the raylib library and i load obj files that are not indexed
and also i am using fedora linux 64bit system

[zeux]

Please refer to something like this as an example: https://github.com/zeux/meshoptimizer/blob/master/demo/main.cpp#L128-L136

In your code one thing that stands out immediately is that you're passing sizeof(float) as vertex size, whereas instead you should be passing the size of the entire vertex - which is typically at least 12 bytes (3 floats), but here likely to be more.