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4 Computer portatili separati, tutti in esecuzione su Ubuntu 11.04.OpenGL ATI vs NVIDIA GLSL problemi
Uno con una scheda ATI, con GLX 1.4, OpenGl 3.3, GLSL 3.3, funziona come previsto.
glxinfo:
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: ATI
server glx version string: 1.4
server glx extensions:
GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGIS_multisample,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
client glx vendor string: ATI
client glx version string: 1.4
GLX version: 1.4
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon HD 3400 Series
OpenGL version string: 3.3.10665 Compatibility Profile Context
OpenGL shading language version string: 3.30
Uno con una scheda Nvidia, in esecuzione GLX 1.4, OpenGL 3.3, GLSL 3.3, non mostra effetti di shader.
glxinfo:
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
GLX_NV_video_capture, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness
GLX version: 1.4
GLX extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro NVS 140M/PCI/SSE2
OpenGL version string: 3.3.0 NVIDIA 280.13
OpenGL shading language version string: 3.30 NVIDIA via Cg compiler
altro con una scheda Nvidia, in esecuzione GLX 1.4, OpenGL 4.1, GLSL 4.1 viene eseguito come previsto, tuttavia c'è un computer portatile identico che mostra gli stessi sintomi come il computer portatile sopra senza effetti .
glxinfo: Working
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
GLX_NV_video_capture, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness
GLX version: 1.4
GLX extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: NVS 4200M/PCI/SSE2
OpenGL version string: 4.1.0 NVIDIA 270.41.06
OpenGL shading language version string: 4.10 NVIDIA via Cg compiler
OpenGL extensions:
GL_ARB_blend_func_extended, GL_ARB_color_buffer_float,
GL_ARB_compatibility, GL_ARB_copy_buffer, GL_ARB_depth_buffer_float,
GL_ARB_depth_clamp, GL_ARB_depth_texture, GL_ARB_draw_buffers,
GL_ARB_draw_buffers_blend, GL_ARB_draw_indirect,
GL_ARB_draw_elements_base_vertex, GL_ARB_draw_instanced,
GL_ARB_ES2_compatibility, GL_ARB_explicit_attrib_location,
GL_ARB_fragment_coord_conventions, GL_ARB_fragment_program,
GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader,
GL_ARB_framebuffer_object, GL_ARB_framebuffer_sRGB,
GL_ARB_geometry_shader4, GL_ARB_get_program_binary, GL_ARB_gpu_shader5,
GL_ARB_gpu_shader_fp64, GL_ARB_half_float_pixel, GL_ARB_half_float_vertex,
GL_ARB_imaging, GL_ARB_instanced_arrays, GL_ARB_map_buffer_range,
GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query,
GL_ARB_occlusion_query2, GL_ARB_pixel_buffer_object,
GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_provoking_vertex,
GL_ARB_robustness, GL_ARB_sample_shading, GL_ARB_sampler_objects,
GL_ARB_seamless_cube_map, GL_ARB_separate_shader_objects,
GL_ARB_shader_bit_encoding, GL_ARB_shader_objects,
GL_ARB_shader_precision, GL_ARB_shader_subroutine,
GL_ARB_shading_language_100, GL_ARB_shading_language_include,
GL_ARB_shadow, GL_ARB_sync, GL_ARB_tessellation_shader,
GL_ARB_texture_border_clamp, GL_ARB_texture_buffer_object,
GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_compression,
GL_ARB_texture_compression_bptc, GL_ARB_texture_compression_rgtc,
GL_ARB_texture_cube_map, GL_ARB_texture_cube_map_array,
GL_ARB_texture_env_add, GL_ARB_texture_env_combine,
GL_ARB_texture_env_crossbar, GL_ARB_texture_env_dot3,
GL_ARB_texture_float, GL_ARB_texture_gather,
GL_ARB_texture_mirrored_repeat, GL_ARB_texture_multisample,
GL_ARB_texture_non_power_of_two, GL_ARB_texture_query_lod,
GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui,
GL_ARB_texture_swizzle, GL_ARB_timer_query, GL_ARB_transform_feedback2,
GL_ARB_transform_feedback3, GL_ARB_transpose_matrix,
GL_ARB_uniform_buffer_object, GL_ARB_vertex_array_bgra,
GL_ARB_vertex_array_object, GL_ARB_vertex_attrib_64bit,
GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
GL_ARB_vertex_type_2_10_10_10_rev, GL_ARB_viewport_array,
GL_ARB_window_pos, GL_ATI_draw_buffers, GL_ATI_texture_float,
GL_ATI_texture_mirror_once, GL_S3_s3tc, GL_EXT_texture_env_add,
GL_EXT_abgr, GL_EXT_bgra, GL_EXT_bindable_uniform, GL_EXT_blend_color,
GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate,
GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_compiled_vertex_array,
GL_EXT_Cg_shader, GL_EXT_depth_bounds_test, GL_EXT_direct_state_access,
GL_EXT_draw_buffers2, GL_EXT_draw_instanced, GL_EXT_draw_range_elements,
GL_EXT_fog_coord, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample,
GL_EXTX_framebuffer_mixed_formats, GL_EXT_framebuffer_object,
GL_EXT_framebuffer_sRGB, GL_EXT_geometry_shader4,
GL_EXT_gpu_program_parameters, GL_EXT_gpu_shader4,
GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil,
GL_EXT_packed_float, GL_EXT_packed_pixels, GL_EXT_pixel_buffer_object,
GL_EXT_point_parameters, GL_EXT_provoking_vertex, GL_EXT_rescale_normal,
GL_EXT_secondary_color, GL_EXT_separate_shader_objects,
GL_EXT_separate_specular_color, GL_EXT_shader_image_load_store,
GL_EXT_shadow_funcs, GL_EXT_stencil_two_side, GL_EXT_stencil_wrap,
GL_EXT_texture3D, GL_EXT_texture_array, GL_EXT_texture_buffer_object,
GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_latc,
GL_EXT_texture_compression_rgtc, GL_EXT_texture_compression_s3tc,
GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp,
GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
GL_EXT_texture_filter_anisotropic, GL_EXT_texture_format_BGRA8888,
GL_EXT_texture_integer, GL_EXT_texture_lod, GL_EXT_texture_lod_bias,
GL_EXT_texture_mirror_clamp, GL_EXT_texture_object,
GL_EXT_texture_shared_exponent, GL_EXT_texture_sRGB,
GL_EXT_texture_swizzle, GL_EXT_texture_type_2_10_10_10_REV,
GL_EXT_timer_query, GL_EXT_transform_feedback2, GL_EXT_vertex_array,
GL_EXT_vertex_array_bgra, GL_EXT_vertex_attrib_64bit,
GL_IBM_rasterpos_clip, GL_IBM_texture_mirrored_repeat,
GL_KTX_buffer_region, GL_NV_alpha_test, GL_NV_blend_minmax,
GL_NV_blend_square, GL_NV_complex_primitives, GL_NV_conditional_render,
GL_NV_copy_depth_to_color, GL_NV_copy_image, GL_NV_depth_buffer_float,
GL_NV_depth_clamp, GL_NV_explicit_multisample,
GL_NV_fbo_color_attachments, GL_NV_fence, GL_NV_float_buffer,
GL_NV_fog_distance, GL_NV_fragdepth, GL_NV_fragment_program,
GL_NV_fragment_program_option, GL_NV_fragment_program2,
GL_NV_framebuffer_multisample_coverage, GL_NV_geometry_shader4,
GL_NV_gpu_program4, GL_NV_gpu_program4_1, GL_NV_gpu_program5,
GL_NV_gpu_program_fp64, GL_NV_gpu_shader5, GL_NV_half_float,
GL_NV_light_max_exponent, GL_NV_multisample_coverage,
GL_NV_multisample_filter_hint, GL_NV_occlusion_query,
GL_NV_packed_depth_stencil, GL_NV_parameter_buffer_object,
GL_NV_parameter_buffer_object2, GL_NV_pixel_data_range,
GL_NV_point_sprite, GL_NV_primitive_restart, GL_NV_register_combiners,
GL_NV_register_combiners2, GL_NV_shader_buffer_load,
GL_NV_texgen_reflection, GL_NV_texture_barrier,
GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4,
GL_NV_texture_expand_normal, GL_NV_texture_lod_clamp,
GL_NV_texture_multisample, GL_NV_texture_rectangle, GL_NV_texture_shader,
GL_NV_texture_shader2, GL_NV_texture_shader3, GL_NV_transform_feedback,
GL_NV_transform_feedback2, GL_NV_vdpau_interop, GL_NV_vertex_array_range,
GL_NV_vertex_array_range2, GL_NV_vertex_attrib_integer_64bit,
GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program,
GL_NV_vertex_program1_1, GL_NV_vertex_program2,
GL_NV_vertex_program2_option, GL_NV_vertex_program3,
GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_OES_depth24,
GL_OES_depth32, GL_OES_depth_texture, GL_OES_element_index_uint,
GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer,
GL_OES_packed_depth_stencil, GL_OES_rgb8_rgba8,
GL_OES_standard_derivatives, GL_OES_texture_3D, GL_OES_texture_float,
GL_OES_texture_float_linear, GL_OES_texture_half_float,
GL_OES_texture_half_float_linear, GL_OES_texture_npot,
GL_OES_vertex_array_object, GL_OES_vertex_half_float,
GL_SGIS_generate_mipmap, GL_SGIS_texture_lod, GL_SGIX_depth_texture,
GL_SGIX_shadow, GL_SUN_slice_accum
glxinfo: non funziona
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
GLX_NV_video_capture, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness
GLX version: 1.4
GLX extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: NVS 4200M/PCI/SSE2
OpenGL version string: 4.1.0 NVIDIA 270.41.06
OpenGL shading language version string: 4.10 NVIDIA via Cg compiler
OpenGL extensions:
GL_ARB_blend_func_extended, GL_ARB_color_buffer_float,
GL_ARB_compatibility, GL_ARB_copy_buffer, GL_ARB_depth_buffer_float,
GL_ARB_depth_clamp, GL_ARB_depth_texture, GL_ARB_draw_buffers,
GL_ARB_draw_buffers_blend, GL_ARB_draw_indirect,
GL_ARB_draw_elements_base_vertex, GL_ARB_draw_instanced,
GL_ARB_ES2_compatibility, GL_ARB_explicit_attrib_location,
GL_ARB_fragment_coord_conventions, GL_ARB_fragment_program,
GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader,
GL_ARB_framebuffer_object, GL_ARB_framebuffer_sRGB,
GL_ARB_geometry_shader4, GL_ARB_get_program_binary, GL_ARB_gpu_shader5,
GL_ARB_gpu_shader_fp64, GL_ARB_half_float_pixel, GL_ARB_half_float_vertex,
GL_ARB_imaging, GL_ARB_instanced_arrays, GL_ARB_map_buffer_range,
GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query,
GL_ARB_occlusion_query2, GL_ARB_pixel_buffer_object,
GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_provoking_vertex,
GL_ARB_robustness, GL_ARB_sample_shading, GL_ARB_sampler_objects,
GL_ARB_seamless_cube_map, GL_ARB_separate_shader_objects,
GL_ARB_shader_bit_encoding, GL_ARB_shader_objects,
GL_ARB_shader_precision, GL_ARB_shader_subroutine,
GL_ARB_shading_language_100, GL_ARB_shading_language_include,
GL_ARB_shadow, GL_ARB_sync, GL_ARB_tessellation_shader,
GL_ARB_texture_border_clamp, GL_ARB_texture_buffer_object,
GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_compression,
GL_ARB_texture_compression_bptc, GL_ARB_texture_compression_rgtc,
GL_ARB_texture_cube_map, GL_ARB_texture_cube_map_array,
GL_ARB_texture_env_add, GL_ARB_texture_env_combine,
GL_ARB_texture_env_crossbar, GL_ARB_texture_env_dot3,
GL_ARB_texture_float, GL_ARB_texture_gather,
GL_ARB_texture_mirrored_repeat, GL_ARB_texture_multisample,
GL_ARB_texture_non_power_of_two, GL_ARB_texture_query_lod,
GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui,
GL_ARB_texture_swizzle, GL_ARB_timer_query, GL_ARB_transform_feedback2,
GL_ARB_transform_feedback3, GL_ARB_transpose_matrix,
GL_ARB_uniform_buffer_object, GL_ARB_vertex_array_bgra,
GL_ARB_vertex_array_object, GL_ARB_vertex_attrib_64bit,
GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
GL_ARB_vertex_type_2_10_10_10_rev, GL_ARB_viewport_array,
GL_ARB_window_pos, GL_ATI_draw_buffers, GL_ATI_texture_float,
GL_ATI_texture_mirror_once, GL_S3_s3tc, GL_EXT_texture_env_add,
GL_EXT_abgr, GL_EXT_bgra, GL_EXT_bindable_uniform, GL_EXT_blend_color,
GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate,
GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_compiled_vertex_array,
GL_EXT_Cg_shader, GL_EXT_depth_bounds_test, GL_EXT_direct_state_access,
GL_EXT_draw_buffers2, GL_EXT_draw_instanced, GL_EXT_draw_range_elements,
GL_EXT_fog_coord, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample,
GL_EXTX_framebuffer_mixed_formats, GL_EXT_framebuffer_object,
GL_EXT_framebuffer_sRGB, GL_EXT_geometry_shader4,
GL_EXT_gpu_program_parameters, GL_EXT_gpu_shader4,
GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil,
GL_EXT_packed_float, GL_EXT_packed_pixels, GL_EXT_pixel_buffer_object,
GL_EXT_point_parameters, GL_EXT_provoking_vertex, GL_EXT_rescale_normal,
GL_EXT_secondary_color, GL_EXT_separate_shader_objects,
GL_EXT_separate_specular_color, GL_EXT_shader_image_load_store,
GL_EXT_shadow_funcs, GL_EXT_stencil_two_side, GL_EXT_stencil_wrap,
GL_EXT_texture3D, GL_EXT_texture_array, GL_EXT_texture_buffer_object,
GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_latc,
GL_EXT_texture_compression_rgtc, GL_EXT_texture_compression_s3tc,
GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp,
GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
GL_EXT_texture_filter_anisotropic, GL_EXT_texture_format_BGRA8888,
GL_EXT_texture_integer, GL_EXT_texture_lod, GL_EXT_texture_lod_bias,
GL_EXT_texture_mirror_clamp, GL_EXT_texture_object,
GL_EXT_texture_shared_exponent, GL_EXT_texture_sRGB,
GL_EXT_texture_swizzle, GL_EXT_texture_type_2_10_10_10_REV,
GL_EXT_timer_query, GL_EXT_transform_feedback2, GL_EXT_vertex_array,
GL_EXT_vertex_array_bgra, GL_EXT_vertex_attrib_64bit,
GL_IBM_rasterpos_clip, GL_IBM_texture_mirrored_repeat,
GL_KTX_buffer_region, GL_NV_alpha_test, GL_NV_blend_minmax,
GL_NV_blend_square, GL_NV_complex_primitives, GL_NV_conditional_render,
GL_NV_copy_depth_to_color, GL_NV_copy_image, GL_NV_depth_buffer_float,
GL_NV_depth_clamp, GL_NV_explicit_multisample,
GL_NV_fbo_color_attachments, GL_NV_fence, GL_NV_float_buffer,
GL_NV_fog_distance, GL_NV_fragdepth, GL_NV_fragment_program,
GL_NV_fragment_program_option, GL_NV_fragment_program2,
GL_NV_framebuffer_multisample_coverage, GL_NV_geometry_shader4,
GL_NV_gpu_program4, GL_NV_gpu_program4_1, GL_NV_gpu_program5,
GL_NV_gpu_program_fp64, GL_NV_gpu_shader5, GL_NV_half_float,
GL_NV_light_max_exponent, GL_NV_multisample_coverage,
GL_NV_multisample_filter_hint, GL_NV_occlusion_query,
GL_NV_packed_depth_stencil, GL_NV_parameter_buffer_object,
GL_NV_parameter_buffer_object2, GL_NV_pixel_data_range,
GL_NV_point_sprite, GL_NV_primitive_restart, GL_NV_register_combiners,
GL_NV_register_combiners2, GL_NV_shader_buffer_load,
GL_NV_texgen_reflection, GL_NV_texture_barrier,
GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4,
GL_NV_texture_expand_normal, GL_NV_texture_lod_clamp,
GL_NV_texture_multisample, GL_NV_texture_rectangle, GL_NV_texture_shader,
GL_NV_texture_shader2, GL_NV_texture_shader3, GL_NV_transform_feedback,
GL_NV_transform_feedback2, GL_NV_vdpau_interop, GL_NV_vertex_array_range,
GL_NV_vertex_array_range2, GL_NV_vertex_attrib_integer_64bit,
GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program,
GL_NV_vertex_program1_1, GL_NV_vertex_program2,
GL_NV_vertex_program2_option, GL_NV_vertex_program3,
GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_OES_depth24,
GL_OES_depth32, GL_OES_depth_texture, GL_OES_element_index_uint,
GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer,
GL_OES_packed_depth_stencil, GL_OES_rgb8_rgba8,
GL_OES_standard_derivatives, GL_OES_texture_3D, GL_OES_texture_float,
GL_OES_texture_float_linear, GL_OES_texture_half_float,
GL_OES_texture_half_float_linear, GL_OES_texture_npot,
GL_OES_vertex_array_object, GL_OES_vertex_half_float,
GL_SGIS_generate_mipmap, GL_SGIS_texture_lod, GL_SGIX_depth_texture,
GL_SGIX_shadow, GL_SUN_slice_accum
In breve, quello che sto cercando di fare è prendere le immagini, trovare le parti che sono abbastanza blu a considerarli oceani, e ravviva quei pixel perché gli oceani sono troppo scuri. Il pacchetto che sto usando (NASA WorldWind) è scritto in JAVA, usando JOGL, quindi sto usando JOGL per usare un frammento personalizzato e vertex shader per creare questo effetto.
Ci sono un paio di cose strane che accadono che credo possano essere i segni di ciò che è che sta causando la mancanza di ombreggiatura.
Innanzitutto, se lo shader del frammento viene modificato in modo da colorare tutti i pixel in rosso senza motivo, le macchine funzionanti visualizzeranno una sfera rossa. Le macchine che non funzionano, fanno lampeggiare la sfera rossa per un pareggio, e quindi la mappa ritorna alle immagini originali (l'intero globo può essere visto e gli oceani sono scuri).
In secondo luogo, se viene apportata una modifica al pacchetto java in modo che il ciclo di rendering non chiami glUseProgram (0), le macchine di lavoro vengano visualizzate in modo strano, ma ancora chiuse e le macchine che non funzionano avranno una traslucida sfera di qualsiasi colore ho impostato GL_fragcolor nello shader. Ciò è reso ancora più strano dal fatto che sta ignorando i pixel discared e li ombreggia comunque questo colore.
In terzo luogo, la maggior parte delle informazioni di debug che ho ottenuto dall'attivazione di jogl debugging è spazzatura, ma sulla macchina ATI posso vederlo recuperare una texture power-of-two abbastanza spesso, mentre sulla macchina nvidia che non funziona Con una coppia identica, la texture power-of-two viene visualizzata una o due volte all'inizio del runtime.
Gli shader ricevono un sampler2D uniforme dal codice JOGL e lo utilizzano per creare una trama2D tramite cui viene recuperato il colore del pixel.
Fragment Shader
uniform sampler2D tile_image;
uniform float brightness;
const vec3 coef = vec3(0.2125, 0.7154, 0.0721);
uniform float saturation;
uniform vec4 hueToAdjust;
vec4 shadeTile(vec4 tile_val);
//Fragment shader. Colors every coordinate that is mostly blue to a lighter blue.
void main (void)
{
if (gl_TexCoord[0].s < 0 || gl_TexCoord[0].s > 1) discard;
if (gl_TexCoord[0].t < 0 || gl_TexCoord[0].t > 1) discard;
vec4 tile_val = texture2D(tile_image, gl_TexCoord[0].st);
//this if statement catches the majority of the ocean areas
if(tile_val.b >= (tile_val.g+tile_val.r))
{
tile_val = shadeTile(tile_val);
}
gl_FragColor = vec4 (tile_val.rgba);
}
vec4 shadeTile(vec4 tile_val)
{
//saturation
vec4 intensity = vec4(dot(tile_val.rgb,coef));
tile_val = mix(intensity, tile_val, saturation);
//contrast
tile_val = brightness * (1.0 - saturation) + tile_val;
//hue adjust
tile_val.rgba *= hueToAdjust;
//brightness
tile_val.rgba *= brightness;
return tile_val;
}
Vertex Shader:
void main(void)
{
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
gl_TexCoord[1] = gl_TextureMatrix[0] * gl_MultiTexCoord1;
gl_Position = ftransform();
}
Render loop:
Public void render(DrawContext dc)
{
if (d_doRender)
{
GL gl = dc.getGL();
if (d_glsl != null && d_glsl.isShaderSupported())
{
d_glsl.useShaders();
d_glsl.startShader();
gl.glUniform1i(d_glsl.getUniformLocation("tile_image"), 0);
gl.glUniform1f(d_glsl.getUniformLocation("saturation"),
d_saturation);
gl.glUniform4f(d_glsl.getUniformLocation("hueToAdjust"),
d_hueToAdjust[0], d_hueToAdjust[1],
d_hueToAdjust[2], d_hueToAdjust[3]);
gl.glUniform1f(d_glsl.getUniformLocation("brightness"),
d_brightness);
}
super.render(dc);
if (d_glsl != null && d_glsl.isShaderSupported())
{
d_glsl.endShader();
}
}
}
E 'anche di nota che il programma e Shader infologs non danno informazioni sulle macchine che non funzionano, mentre sulla macchina ATI dicono che gli shader sono stati compilati con successo corri su questo hardware.
Un pezzo importante di informazioni sarebbe anche i driver installati, perché per Linux ci sono 2 tipi di driver: Il propritary del produttore di GPU e driver open source sviluppato dalla comunità. Si prega di aggiungere l'output di 'glxinfo' per ogni laptop. – datenwolf
@datenwolf Aggiornamento OP con glxinfo. Tutti i driver in uso sono i driver proprietari. – Dwight
Il codice dello shader di frammenti sembra strano - _due_ l'apertura di parentesi graffe? Errore di battitura? –