Fix T71147 Eevee stops rendering after selection attempt
This is caused by the fallback path used by OSX, which is reconfiguring the same default VAO. But it seems to be an issue on certain drivers.
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@ -655,11 +655,24 @@ void GPU_batch_draw_advanced(GPUBatch *batch, int v_first, int v_count, int i_fi
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// BLI_assert(v_first + v_count <=
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// (batch->elem ? batch->elem->index_len : batch->verts[0]->vertex_len));
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#ifdef __APPLE__
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GLuint vao = 0;
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#endif
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if (!GPU_arb_base_instance_is_supported()) {
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if (i_first > 0) {
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#ifdef __APPLE__
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/**
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* There seems to be a nasty bug when drawing using the same VAO reconfiguring. (see T71147)
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* We just use a throwaway VAO for that. Note that this is likely to degrade performance.
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**/
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glGenVertexArrays(1, &vao);
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glBindVertexArray(vao);
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#else
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/* If using offset drawing with instancing, we must
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* use the default VAO and redo bindings. */
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glBindVertexArray(GPU_vao_default());
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#endif
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batch_update_program_bindings(batch, i_first);
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}
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else {
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@ -698,6 +711,12 @@ void GPU_batch_draw_advanced(GPUBatch *batch, int v_first, int v_count, int i_fi
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glEnable(GL_PRIMITIVE_RESTART);
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#endif
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}
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#ifdef __APPLE__
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if (vao != 0) {
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glDeleteVertexArrays(1, &vao);
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}
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#endif
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}
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/* just draw some vertices and let shader place them where we want. */
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