- Do not load skybox at all if there are no SURF_DRAWSKY, #706, #579
- Do not reload the same skybox, #706
Also refactor skybox loading a bit. Prepare for KTX2 skyboxes.
Skip adding animated surfaces as static lights. We'd like them to be
static, but currently there's no distinction between immovable lights
and switchable lights or lights with dynamic emissive value.
Fixes#679
They don't really belong to neither rt_model_t, nor render model.
Allows having dynamic polylights for func_water entities without "main"
render model, and only water submodels.
Makes acid water surfaces emissive again.
However, they are not assinged proper emissive color values for direct
ray hits yet, so they do emit light, but look dar still.
Ref: #56
Only leave water surfaces directed towards "air".
This is consistent with:
- non-`kRenderNormal` surfaces, for which there's only one surface present
- opt2 for translucent surfaces, where we aim to detect medium boundary
direction based on normal-vs-ray-direction
Also add notes about translucent surfaces in general, more info about
water rendering under ref_gl, etc.
Fixes#264
Cull everything except:
- opaque geometry: to avoid shadow and reflection holes
- bleded geometry: particles and such should be visible from any angle
Alpha-tested geometries result in visual glitches when not culled
(double-sided ladders, double shadows, etc). These glitches are worse
than slightly misaligned shadows.
Translucent geometries are still matter of research.
Adds a few things:
- verbose logs about surface flags/type/orientation
- same about surface subdivided polys
- tries culling back water surfaces (doesn't work that well)
- tries culling in rt shaders
This still unfinished
Many static worldmodel surfaces still contain alternate texture chains.
That was making these surfaces dynamic, even though there's no way to
trigger these alternate anims.
Make worldmodel ignore alternate_anims when looking for animated
surfaces.
Fixes#644
Pass current entity to compute wave height. Still doesn't switch to
negative height when underwater for some reason.
And still displays water sides.
Add some notes regarding water geometry generation and drawing.
Adds `_xvk_tex_rotate` field for surface patches. Angle is specified in
degrees.
Note that it rotates the texture around origin, which might be very far
away. So offset patching might be needed to re-align.
When texture coordinates are inverted, it makes tangent look into
oppsite direction, which inverts TBN and therefore normal map.
Make sure the tangent points to a consistent direction.
Fixes#627
Uses `_xvk_smoothing_excluded` field.
Surfaces can still be smoothed with a limited list of neightbours explicitly
by being included in a smoothing group.
Fixes#619
Use dedicated hash table for new material names.
Updates a lot of dependent code:
- surface patches now target materials, not textures:
`s/_xvk_textures/_xvk_material`
- patching now affects only materials, not texture ids. All logic that
depends on texture ids now operate on original textures.
- brush normal smoothing now ignores patched surface materials when
deciding whether two surfaces can be smoothed.
The rationale is that patching should only affect newer PBR/RT code paths.
kRenderTransColor mode strips geometry of its texture and makes it solid
color. Previously we were noticing this rendermode late, and failed to
update the textures.
Now we depend on reading this rendermode from map entities, and
pre-assigning correct (white) textures on load.
Assumes that rendermode doesn't change at runtime for brush models.
Fixes#528
Different render sources (model types, render types, etc) might require
different material modes. E.g. brush should be translucent (refractive+mirror)
for blend mix modes. However, smoke particles should not be
mirror/refractive for the same blend mix render type.
Needed to hide invisible geometry on e.g. c5a1. Breaks de_dust2 roofs
(#474). That will need to be addressed some other way.
Still uses special value for base_color texture to signal SKY SURFACE.
A supposedly better way to do this would be to have them have a special
material.
1. Completely remove them from geometries
2. Draw skybox where the ray hasn't hit anything
3. In the same fashion sky is not shadowed when there's nothing hit by
the shadow ray.
This allows completely removing the sky material flag.
Also supposedly fixes#474
Ivan 'provod' Avdeev
Ivan 'provod' Avdeev
NightFox