diff options
Diffstat (limited to 'source/blender/draw/modes/shaders/common_view_lib.glsl')
| -rw-r--r-- | source/blender/draw/modes/shaders/common_view_lib.glsl | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/source/blender/draw/modes/shaders/common_view_lib.glsl b/source/blender/draw/modes/shaders/common_view_lib.glsl index 20a54947db7..76089d1ae41 100644 --- a/source/blender/draw/modes/shaders/common_view_lib.glsl +++ b/source/blender/draw/modes/shaders/common_view_lib.glsl @@ -1,4 +1,5 @@ #define COMMON_VIEW_LIB +#define DRW_RESOURCE_CHUNK_LEN 512 /* keep in sync with DRWManager.view_data */ layout(std140) uniform viewBlock @@ -23,8 +24,77 @@ layout(std140) uniform viewBlock _world_clip_planes_calc_clip_distance(p, clipPlanes) #endif +uniform int resourceChunk; + +#ifdef GPU_VERTEX_SHADER +# ifdef GL_ARB_shader_draw_parameters +# define baseInstance gl_BaseInstanceARB +# else /* no ARB_shader_draw_parameters */ +uniform int baseInstance; +# endif + +# ifdef IN_PLACE_INSTANCES +/* When drawing instances of an object at the same position. */ +# define instanceId 0 +# elif defined(GPU_DEPRECATED_AMD_DRIVER) +/* A driver bug make it so that when using an attribute with GL_INT_2_10_10_10_REV as format, + * the gl_InstanceID is incremented by the 2 bit component of the attrib. + * Ignore gl_InstanceID then. */ +# define instanceId 0 +# else +# define instanceId gl_InstanceID +# endif + +# define resource_id (baseInstance + instanceId) + +/* Use this to declare and pass the value if + * the fragment shader uses the resource_id. */ +# define RESOURCE_ID_VARYING flat out int resourceIDFrag; +# define RESOURCE_ID_VARYING_GEOM flat out int resourceIDGeom; +# define PASS_RESOURCE_ID resourceIDFrag = resource_id; +# define PASS_RESOURCE_ID_GEOM resourceIDGeom = resource_id; +#endif + +/* If used in a fragment / geometry shader, we pass + * resource_id as varying. */ +#ifdef GPU_GEOMETRY_SHADER +# define RESOURCE_ID_VARYING \ + flat out int resourceIDFrag; \ + flat in int resourceIDGeom[]; + +# define resource_id resourceIDGeom +# define PASS_RESOURCE_ID(i) resourceIDFrag = resource_id[i]; +#endif + +#ifdef GPU_FRAGMENT_SHADER +flat in int resourceIDFrag; +# define resource_id resourceIDFrag +#endif + +#if !defined(GPU_INTEL) && !defined(GPU_DEPRECATED_AMD_DRIVER) && !defined(OS_MAC) +struct ObjectMatrices { + mat4 drw_modelMatrix; + mat4 drw_modelMatrixInverse; +}; + +layout(std140) uniform modelBlock +{ + ObjectMatrices drw_matrices[DRW_RESOURCE_CHUNK_LEN]; +}; + +# define ModelMatrix (drw_matrices[resource_id].drw_modelMatrix) +# define ModelMatrixInverse (drw_matrices[resource_id].drw_modelMatrixInverse) + +#else /* GPU_INTEL */ +/* Intel GPU seems to suffer performance impact when the model matrix is in UBO storage. + * So for now we just force using the legacy path. */ +/* Note that this is also a workaround of a problem on osx (amd or nvidia) + * and older amd driver on windows. */ uniform mat4 ModelMatrix; uniform mat4 ModelMatrixInverse; +#endif + +#define resource_handle (resourceChunk * DRW_RESOURCE_CHUNK_LEN + resource_id) /** Transform shortcuts. */ /* Rule of thumb: Try to reuse world positions and normals because converting though viewspace |