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-rw-r--r--src/mesa/vbo/vbo_attrib_tmp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/vbo/vbo_attrib_tmp.h b/src/mesa/vbo/vbo_attrib_tmp.h
index e73b8fb5ff1..ed0b2deda42 100644
--- a/src/mesa/vbo/vbo_attrib_tmp.h
+++ b/src/mesa/vbo/vbo_attrib_tmp.h
@@ -226,7 +226,7 @@ static inline float conv_i2_to_norm_float(const struct gl_context *ctx, int i2)
} while(0)
#define ATTR_UI_INDEX(ctx, val, type, normalized, index, arg) do { \
- if ((index) == 0) { \
+ if ((index) == 0 && _mesa_attr_zero_aliases_vertex(ctx)) { \
ATTR_UI(ctx, val, (type), normalized, 0, (arg)); \
} else if ((index) < MAX_VERTEX_GENERIC_ATTRIBS) { \
ATTR_UI(ctx, val, (type), normalized, VBO_ATTRIB_GENERIC0 + (index), (arg)); \