It visualizes the bounding sphere of the instance. Although it is only
called from dead code in Toushin Toshi 3, it's useful for debugging
shadow mapping.
This fixes broken shadow rendering e.g. when Nacht climbs a ladder.
Now update_bones() calculates the instance's bounding sphere which
is the minimum sphere containing the AABB of current bone coordinates.
This corresponds to the sphere that is displayed when calling
SetInstanceDebugDrawShadowVolume on the original ReignEngine.dll.
This fixes billboard rendering issue in some dungeons.
* For polygon models, use its AABB's center coordinates.
* Consider the camera angle, i.e. sort by view-space Z-coordinate
instead of world-space Z-coordinate.
There are two types of transparent materials: materials that have an
alpha map and materials that have a color map with an alpha channel.
This change makes the latter to be considered transparent.
Some games have assets that are too large to mmap everything on a 32-bit
address space. For example, TT3 has a total of 2.82GB of assets, which
is too large for the 3GB address space limit of 32-bit Linux. On Android
it's even stricter and mmaps of hundreds of MB can fail.
Before this, the order of drawing was determined on an instance-by-
instance basis. Instances with even a single transparent material were
drawn after fully opaque instances.
After this, first the opaque meshes in all instances are drawn, and then
the transparent meshes are drawn from the nearest to the farthest.
Some motion files (e.g. maidsan_ahoge_* and otokomae_*) have wrong bone
IDs, so bone names should be used to look up matching bones in the
model.
However, this does not always work because masokan.POL has multiple
bones with the same name. In that case ID matching must be used.
- Enable both alpha map and alpha mod, using the new drawing function
gfx_copy_stretch_blend_amap_alpha().
- Do not draw if `bcg->show` flag is false.
- Do not WARNING() for SetBackCGNum(0) as it's used to unload the CG.
This implements a parser for particle effect definition files (.pae)
and a set of field accessor functions for the RE_ITYPE_PARTICLE_EFFECT
instance type. Rendering of effects is not yet implemented.
There are two types of fog, linear fog and atmospheric scattering. The
formula for light scattering is incorrect (see the comment in
reign.v.glsl) and therefore not physically correct.
This is used to compute Y-positions of map objects.
It is called quite often, so this implementation creates and caches a
height map of the instance by (re)using the shader for shadow mapping.
This implements a Phong shading with ambient, diffuse and specular
components, using up to three directional lights and one specular light.
The light calculation is made to match the "high quality" 3D mode of
Toushin Toshi 3.
kichikuou