Hello, it's me again (I heard you just said "not him again..." ;)
I still haven't resolve my problem with 3D samplers in a SHLChunk, provided by
some 3D textures constructed during runtime.
But my investigations showed me that it's not a problem with the way I create
the material chunk, the shl chunk or the texture chunks, and how I mix it
altogether, because it works for 2D. Indeed, I just changed the sampler3D of my
fragment program into a sampler2D, and instead of providing a 3D image to the
texture chunk, I took the first slice of this 3D image. I made a 2D image with
these data and I gave that to my texture chunk. The rest is just the same as
before. And this time, I could see my slice of 3D texture appearing on my
objects...
So here are my conclusions :
- My generated 3D image is not empty (the slice looked like what I wanted),
thanks to your help from the thread about setData, getData, if you remember
- The way I create and use the different chunks is OK (as you confirmed, in the
another thread, when I submitted my method)
So I wonder if it's a problem with my graphic card (geforce FX 5900) or its
drivers, but I don't think so, as it seems recent enough to support volume
textures and I also tested my program on a geforce Quadro FX 1000 without
better result.
I don't have more ideas so maybe you have. Maybe my conclusions are a bit
prematurate too. What's your opinion? Any idea?
Thank you very much.
Jo
PS: For information, here are the OpenGL extensions supported by my card :
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_ARB_multisample, GLX_NV_float_buffer
client glx vendor string: NVIDIA Corporation
client glx version string: 1.3
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_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_NV_float_buffer
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_ARB_multisample, GLX_NV_float_buffer, GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce FX 5900/AGP/SSE2
OpenGL version string: 1.5.1 NVIDIA 61.11
OpenGL extensions:
GL_ARB_depth_texture, GL_ARB_fragment_program,
GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader, GL_ARB_imaging,
GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query,
GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_shadow,
GL_ARB_shader_objects, GL_ARB_shading_language_100,
GL_ARB_texture_border_clamp, GL_ARB_texture_compression,
GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_texture_env_combine, GL_ARB_texture_env_dot3,
GL_ARB_texture_mirrored_repeat, GL_ARB_transpose_matrix,
GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
GL_ARB_window_pos, GL_S3_s3tc, GL_EXT_texture_env_add, GL_EXT_abgr,
GL_EXT_bgra, GL_EXT_blend_color, 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_draw_range_elements,
GL_EXT_fog_coord, GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels,
GL_EXT_paletted_texture, GL_EXT_pixel_buffer_object,
GL_EXT_point_parameters, GL_EXT_rescale_normal, GL_EXT_secondary_color,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs,
GL_EXT_shared_texture_palette, GL_EXT_stencil_two_side,
GL_EXT_stencil_wrap, GL_EXT_texture3D, 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_lod,
GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_vertex_array,
GL_HP_occlusion_test, GL_IBM_rasterpos_clip,
GL_IBM_texture_mirrored_repeat, GL_KTX_buffer_region, GL_NV_blend_square,
GL_NV_copy_depth_to_color, GL_NV_depth_clamp, GL_NV_fence,
GL_NV_float_buffer, GL_NV_fog_distance, GL_NV_fragment_program,
GL_NV_fragment_program_option, GL_NV_half_float, GL_NV_light_max_exponent,
GL_NV_multisample_filter_hint, GL_NV_occlusion_query,
GL_NV_packed_depth_stencil, GL_NV_pixel_data_range, GL_NV_point_sprite,
GL_NV_primitive_restart, GL_NV_register_combiners,
GL_NV_register_combiners2, GL_NV_texgen_reflection,
GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4,
GL_NV_texture_expand_normal, GL_NV_texture_rectangle,
GL_NV_texture_shader, GL_NV_texture_shader2, GL_NV_texture_shader3,
GL_NV_vertex_array_range, GL_NV_vertex_array_range2, GL_NV_vertex_program,
GL_NV_vertex_program1_1, GL_NV_vertex_program2,
GL_NV_vertex_program2_option, GL_SGIS_generate_mipmap,
GL_SGIS_texture_lod, GL_SGIX_depth_texture, GL_SGIX_shadow,
GL_SUN_slice_accum
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