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Revision eff6b3e7

Added by danij about 16 years ago

Revised method for texturing planes. Rather than aligning to the world grid, subsector planes are now textured using the bbox of the subsector to derive the s, t tex coords. This allows for all world surfaces to be textured using the same algorithms by using an conceptual quad for mapping.
Rewrote dynlight projection to use a unified, 3D dimensional method which is used on all world surfaces. Also improved memory management for dynlight link lists to reduce per-frame overhead somewhat.
Rewrote the surface decoration plotting to use a unified method which is used on all world surfaces.
Added world surface normal drawer for debug purposes.
Added lumobj_t drawer for debug purposes.
Fixed logic bug in RL_AddPoly which was resulted in dynlights for a lit poly not being drawn rarely.
Fixed bug in the surface decoration plotting which used the surface normal incorrectly when applying the decoration elevation offset.
Fixed bug in GL_PrepareMaterial2 which meant that all types of particle generator were cross-referenced with the surface material name, even if not a surface generator.
Renamed P_PointOnLineSide to P_PointOnLinedefSide and added a new P_PointOnLineSide whose input is a point on the line, line x/y deltas and the point to be tested.
cvar rend-glow-fog-bright replaced with rend-light-fog-bright which is used universally on all lights when fog is enabled.

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