I've been trying to do some renders with the latest build of the houdini apprentice version (446 I think) on OSX 10.6. Anyway, the renders always come out with some pure white objects on a pure black background, like a sillouette. I doesn't seem to matter what the about the lights intensity or the materials on the objects. Any ideas?

I just noticed that if I use the inspector tool on the render output window, I can see real colored pixels. Also if I save the frame as a jpeg, and look at it with preview, it looks fine. So the problem is just the display in houdini of the render frames.

I am using an imac with an ATI HD 4850 GPU if it makes any difference.

Me to. Everything is white, but everything is fine when saving the render as an image. Have tested with all the “Example Files”. I'm running 10.6.3 on a MacPro 2008.

Graphics Card:
Platform: darwin-x86_64-gcc4.2-MacOSX10.6
OpenGL Vendor: ATI Technologies Inc.
OpenGL Renderer: ATI Radeon HD 4870 OpenGL Engine
OpenGL Version: 2.1 ATI-1.6.10
OpenGL Shading Language: 1.20
OpenGL Extensions:
GL_APPLE_aux_depth_stencil
GL_APPLE_client_storage
GL_APPLE_element_array
GL_APPLE_fence
GL_APPLE_float_pixels
GL_APPLE_flush_buffer_range
GL_APPLE_flush_render
GL_APPLE_object_purgeable
GL_APPLE_packed_pixels
GL_APPLE_pixel_buffer
GL_APPLE_rgb_422
GL_APPLE_specular_vector
GL_APPLE_texture_range
GL_APPLE_transform_hint
GL_APPLE_vertex_array_object
GL_APPLE_vertex_array_range
GL_APPLE_vertex_program_evaluators
GL_APPLE_ycbcr_422
GL_ARB_color_buffer_float
GL_ARB_depth_buffer_float
GL_ARB_depth_texture
GL_ARB_draw_buffers
GL_ARB_fragment_program
GL_ARB_fragment_program_shadow
GL_ARB_fragment_shader
GL_ARB_framebuffer_object
GL_ARB_half_float_pixel
GL_ARB_half_float_vertex
GL_ARB_imaging
GL_ARB_multisample
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_pixel_buffer_object
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_shader_objects
GL_ARB_shader_texture_lod
GL_ARB_shading_language_100
GL_ARB_shadow
GL_ARB_shadow_ambient
GL_ARB_texture_border_clamp
GL_ARB_texture_compression
GL_ARB_texture_compression_rgtc
GL_ARB_texture_cube_map
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_mirrored_repeat
GL_ARB_texture_non_power_of_two
GL_ARB_texture_rectangle
GL_ARB_texture_rg
GL_ARB_transpose_matrix
GL_ARB_vertex_blend
GL_ARB_vertex_buffer_object

This is fixed in tomorrow's build (11.0.463). For some reason, the OSX OpenGL drivers appear to require a dummy assignment to gl_FragColor before a discard statement in an if() clause in the image processing shader. That's a bit odd since discard completely culls the pixel from processing. Regardless, it's fixed.

Twod: Oki that's great . However the newest build is Houdini 11.0.446.9 and the build you refer to is 10.0.463 - isn't that an older build number? It's not fixed in 10.0.446.9

EDIT: Maybe you are referring to 10.0.462 - because it's been fixed in that build Thanks alot

You're right, it's in 11.0.462. Guess I got ahead of myself

Will this update be available soon?