Began refactoring the interface to the rend lists (i.e. RL_AddPoly) with the following goals:
Currently only our domain-specific primitives quad/divquad/flat can be added to the rend lists. Instead we should break them down to standard primitives on the other side of this interface.
Remove rendpoly_t. Although convenient, this structure and its continual, rapid allocation/deallocation on the stack is one of the main bottlenecks in our current renderer.
Provide an interface which allows external reservation of gl_vertex_t, gl_texcoord_t and gl_color_t elements from the global arrays. This is related to rendpoly_t bottleneck.
Reduce memory requirements brought about by unnecessary allocation of gl_texcoord_t structures for smooth texture animation when not actually used.
Work done thus far:
Standardized on the gl primitive types that can be added via the RL_AddPoly interface to the render lists. Domain-specific primitives are now decomposed/tesselated on the other side of this interface in rend_main.c:renderWorldPoly. This includes the division of wall segs (divquads).
Dynamic light polys are now handled similarly, being decomposed into standard primitives which are then sent via RL_AddPoly to the rend lists.
Handling of multitextured lights, detail textures and smooth texture/flat animation updated accordingly.
Texture coordinates are now supplied to RL_AddPoly rather than being derived based on the rendpoly_t paramaters and the primitive type.
Redesigned how detail textures are drawn. Now uses the texture matrix for position/scale/rotation and so the primary texture coordinates can be re-used. Thus memory requirements for a list primitive reduced by 1/6th.
Surface reflection paramaters are now determined in R_MaterialPrepare and returned to the caller (currently only renderWorldPoly).
Began generalizing how multitexturing is handled internally within rend_list.c
Fixed broken surface reflection texture coordinate generation with planes.
Fixed problem with detail texture selection which failed to differentiate between detailtex_t instances when only their defined scale differs (todo, clearly this needs to be revised further as scale should not be a property of the instance).
Fixed long standing issue within the memory management of the rend lists and dynamic lights due to reallocation of list data leaving a dangling ptr in the dynamic light poly, list header.
Todo:
Reflection and fakeradio texcoord generation is currently broken with wall segs that have edge divisions.
Fix issue with the paramaters used for the texture matrix manipulations with detail textures on wall segs. Currently they scroll vertically if the floor/ceiling plane on the seg side moves.
Remaining work to achieve the stated goals (doh!).
Added by danij about 16 years ago
Added by
- Currently only our domain-specific primitives quad/divquad/flat can be added to the rend lists. Instead we should break them down to standard primitives on the other side of this interface.
- Remove rendpoly_t. Although convenient, this structure and its continual, rapid allocation/deallocation on the stack is one of the main bottlenecks in our current renderer.
- Provide an interface which allows external reservation of gl_vertex_t, gl_texcoord_t and gl_color_t elements from the global arrays. This is related to rendpoly_t bottleneck.
- Reduce memory requirements brought about by unnecessary allocation of gl_texcoord_t structures for smooth texture animation when not actually used.
Work done thus far:- Standardized on the gl primitive types that can be added via the RL_AddPoly interface to the render lists. Domain-specific primitives are now decomposed/tesselated on the other side of this interface in rend_main.c:renderWorldPoly. This includes the division of wall segs (divquads).
- Dynamic light polys are now handled similarly, being decomposed into standard primitives which are then sent via RL_AddPoly to the rend lists.
- Handling of multitextured lights, detail textures and smooth texture/flat animation updated accordingly.
- Texture coordinates are now supplied to RL_AddPoly rather than being derived based on the rendpoly_t paramaters and the primitive type.
- Redesigned how detail textures are drawn. Now uses the texture matrix for position/scale/rotation and so the primary texture coordinates can be re-used. Thus memory requirements for a list primitive reduced by 1/6th.
- Surface reflection paramaters are now determined in R_MaterialPrepare and returned to the caller (currently only renderWorldPoly).
- Began generalizing how multitexturing is handled internally within rend_list.c
- Fixed broken surface reflection texture coordinate generation with planes.
- Fixed problem with detail texture selection which failed to differentiate between detailtex_t instances when only their defined scale differs (todo, clearly this needs to be revised further as scale should not be a property of the instance).
- Fixed long standing issue within the memory management of the rend lists and dynamic lights due to reallocation of list data leaving a dangling ptr in the dynamic light poly, list header.
Todo: