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glImaging: Fix out-of-bound access when creating varying buffer.

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This commit is contained in:
Takahito Tejima 2015-04-30 12:44:11 -07:00
parent b0188bf217
commit b77aaf499e
1 changed files with 5 additions and 1 deletions
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6
examples/glImaging/glImaging.cpp
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@ -413,14 +413,18 @@ void runTest(ShapeDesc const &shapeDesc, std::string const &kernel,
std::vector<float> vertex;
vertex.resize(nverts * numVertexElements);
for (int i = 0; i < nverts; ++i) {
// normalize xyz
for (int j = 0; j < 3; ++j) {
vertex[i*numVertexElements+j] =
(shape->verts[i*3+j] - center[j])/radius;
}
for (int j = 0; j < 4; ++j) {
// set rgb from xyz
for (int j = 0; j < 3; ++j) {
vertex[i*numVertexElements+j+3] =
(shape->verts[i*3+j] - pmin[j])*2.0f/radius;
}
// set alpha to 1.0
vertex[i*numVertexElements+3+3] = 1.0f;
}
mesh->UpdateVertexBuffer(&vertex[0], 0, nverts);