Details
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Bug
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Resolution: Out of scope
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P2: Important
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None
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5.11.0 RC2
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None
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VMware Ubunut 16.04
Description
Tested on VMware Workstation 14 Player (14.1.1 build-7528167) with Ubuntu 16.04 guest OS on same host OS. When the attached QML file is run with:
QSG_RENDER_LOOP=basic qmlscene windows.qml
the subwindow is not rendered correctly:
Actual: transparent
Expected: red background
Note that this does not happen when the main window has no transparency and also not when the threaded render loop is used.
This is the SG info:
qt.scenegraph.general: QSG: basic render loop
qt.scenegraph.general: Using sg animation driver
qt.scenegraph.general: texture atlas dimensions: 512x512
qt.scenegraph.general: R/G/B/A Buffers: 8 8 8 8
qt.scenegraph.general: Depth Buffer: 24
qt.scenegraph.general: Stencil Buffer: 8
qt.scenegraph.general: Samples: 0
qt.scenegraph.general: GL_VENDOR: VMware, Inc.
qt.scenegraph.general: GL_RENDERER: llvmpipe (LLVM 5.0, 256 bits)
qt.scenegraph.general: GL_VERSION: OpenGL ES 3.0 Mesa 17.2.8
qt.scenegraph.general: GL_EXTENSIONS: GL_OES_texture_3D GL_EXT_compressed_ETC1_RGB8_sub_texture GL_OES_depth24 GL_OES_draw_buffers_indexed GL_ANGLE_texture_compression_dxt5 GL_OES_texture_npot GL_OES_texture_half_float_linear GL_OES_vertex_array_object GL_EXT_map_buffer_range GL_EXT_blend_minmax GL_EXT_texture_compression_dxt1 GL_MESA_shader_integer_functions GL_EXT_multi_draw_arrays GL_EXT_draw_elements_base_vertex GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_half_float GL_EXT_clip_cull_distance GL_EXT_color_buffer_float GL_NV_read_depth_stencil GL_OES_packed_depth_stencil GL_EXT_texture_rg GL_OES_standard_derivatives GL_EXT_polygon_offset_clamp GL_OES_texture_float_linear GL_NV_read_buffer GL_OES_fbo_render_mipmap GL_OES_depth_texture_cube_map GL_OES_EGL_sync GL_EXT_base_instance GL_EXT_draw_buffers GL_EXT_copy_image GL_APPLE_texture_max_level GL_OES_EGL_image_external GL_NV_read_stencil GL_NV_fbo_color_attachments GL_EXT_draw_buffers_indexed GL_OES_draw_elements_base_vertex GL_EXT_blend_func_extended GL_EXT_texture_format_BGRA8888 GL_EXT_unpack_subimage GL_KHR_context_flush_control GL_OES_compressed_ETC1_RGB8_texture GL_OES_mapbuffer GL_OES_get_program_binary GL_EXT_separate_shader_objects GL_EXT_discard_framebuffer GL_KHR_no_error GL_OES_vertex_half_float GL_EXT_texture_type_2_10_10_10_REV GL_EXT_frag_depth GL_OES_depth_texture GL_KHR_debug GL_NV_draw_buffers GL_EXT_texture_border_clamp GL_EXT_shader_integer_mix GL_ANGLE_texture_compression_dxt3 GL_NV_read_depth GL_OES_rgb8_rgba8 GL_OES_texture_float GL_OES_texture_stencil8 GL_OES_element_index_uint GL_EXT_read_format_bgra GL_OES_stencil8 GL_OES_EGL_image GL_EXT_texture_sRGB_decode GL_OES_copy_image
qt.scenegraph.general: Max Texture Size: 8192
qt.scenegraph.general: Debug context: false