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GenMeshTangents better handling for issue #1876

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This commit is contained in:
Jason Penick 2021-07-16 16:14:57 -05:00
parent af77d3869b
commit be56655b2a
1 changed files with 19 additions and 7 deletions
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16
src/models.c
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@ -2659,7 +2659,6 @@ void GenMeshTangents(Mesh *mesh)
} }
else else
{ {
rlUnloadVertexBuffer(mesh->vboId[SHADER_LOC_VERTEX_TANGENT]);
RL_FREE(mesh->tangents); RL_FREE(mesh->tangents);
mesh->tangents = (float*)RL_MALLOC(mesh->vertexCount*4*sizeof(float)); mesh->tangents = (float*)RL_MALLOC(mesh->vertexCount*4*sizeof(float));
} }
@ -2732,14 +2731,27 @@ void GenMeshTangents(Mesh *mesh)
RL_FREE(tan1); RL_FREE(tan1);
RL_FREE(tan2); RL_FREE(tan2);
if (mesh->vboId != NULL)
{
if (mesh->vboId[SHADER_LOC_VERTEX_TANGENT] != 0)
{
// Upate existing vertex buffer
rlUpdateVertexBuffer(mesh->vboId, mesh->tangents, mesh->vertexCount * 4 * sizeof(float), 0);
}
else
{
// Load a new tangent attributes buffer // Load a new tangent attributes buffer
mesh->vboId[SHADER_LOC_VERTEX_TANGENT] = rlLoadVertexBuffer(mesh->tangents, mesh->vertexCount*4*sizeof(float), false); mesh->vboId[SHADER_LOC_VERTEX_TANGENT] = rlLoadVertexBuffer(mesh->tangents, mesh->vertexCount*4*sizeof(float), false);
}
rlEnableVertexArray(mesh->vaoId); rlEnableVertexArray(mesh->vaoId);
rlSetVertexAttribute(4, 4, RL_FLOAT, 0, 0, 0); rlSetVertexAttribute(4, 4, RL_FLOAT, 0, 0, 0);
rlEnableVertexAttribute(4); rlEnableVertexAttribute(4);
rlDisableVertexArray(); rlDisableVertexArray();
}
TRACELOG(LOG_INFO, "MESH: Tangents data computed for provided mesh"); TRACELOG(LOG_INFO, "MESH: Tangents data computed for provided mesh");
} }