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-rw-r--r--graphics/asymptote/shaders.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/graphics/asymptote/shaders.cc b/graphics/asymptote/shaders.cc
index 9aa29bec06..371cd1c1b9 100644
--- a/graphics/asymptote/shaders.cc
+++ b/graphics/asymptote/shaders.cc
@@ -98,6 +98,7 @@ GLuint createShaderFile(std::string file, int shaderType,
#ifdef HAVE_SSBO
if(ssbo) {
shaderSrc << "#extension GL_ARB_shader_storage_buffer_object : enable" << "\n";
+ shaderSrc << "#extension GL_ARB_shader_atomic_counters : enable" << "\n";
if(interlock)
shaderSrc << "#extension GL_ARB_fragment_shader_interlock : enable"
<< "\n";