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House Dagon needs a set of textures.

To ease the transition to a multitexturing rendering environment, I propose that we fully adopt Quake 3 shader scripting. Currently, we support a simpler version with a single texture stage in mind.

DONE

- Support for material with multiple layers

TODO

- OpenGL multitexture support
- Improve syntax

Exmaple of current implementation:

shader/path/name
{
qer_editorimage path/to/texture
{
map path/to/texture
entity
}
{
map path/to/glow_texture
fullbright
blendfunc blend
}
}

---------------------------------
Quake 3:

shader/path/name
{
qer_editorimage path/to/texture
other_keywords
{
map path/to/texture
}
{
map path/to/texture2
blendfunc ...
}

We need this in order to clean up the material drawing(specifically the environment mapping section). This could also possibly enable us to use the skybox cubemap for nice reflection effects.

Clean up and homogenize material, light, flare, engine and particle color types and flags.

Those fx can be triggered by engine states (trigger_impulse, trigger_engine, trigger_destroyed, ..)
The color can be set as color_entity, color_entity_second, color_entity_third, color_engine, ...

TODO
- review/refactor: lights, flares, materials, and particles should have the some options for
triggers and colortypes.
The parameter names in .map file classes and .material files should be the same

Osirion needs some better fonts besides the ugly monospaced font it uses right now. Perhaps the current font should just be used for the console?

I recommend this font as it's licensed under the CC and doesn't look half bad:
http://openfontlibrary.org/font/jura

For an example of this, take a look at the Talon's main guns.

Fade-out of strobe lights should occur by default, with an optional float fade time and boolean fade spawnflag.

If the testmodel window is opened, the current scene is still drawn.

Fixing this would provide quite an optimization.

I propose a key bind(toggle) to allow the ship to be steered via the mouse in the same method as the joystick: directly steering based on relative mouse position(locking the cursor in the center of the screen).

Shaders need a way to enable different OpenGL blending modes, like Quake 3's "blendFunc". This will allow special effects like light beams and 3d exhaust effects.

DONE
- blenfunc none
- blendunc add
- blendfunc blend

TODO
- blendfuncGL_SOMETHING GL_SOMETHING
- blendfunc filter?

Tsu-Khan needs a set of textures.

port osi to raspberry pi

For finer control of the ship, thrust points should be defined. Instead of the ship being pushed from its origin point, thrust entities would define where the force against the ship is coming from. This would allow for more realistic control.

If more than one entity is used, the thrust power is split between them, or defined by percentage specifically with entity keys.

The engine needs a way to be able to use a LOD system for performance reasons. I propose a method for this: all brush entities(except worldspawn and misc_model) will have a 'lod' key. The existence of this key in the entity(as in, if it's actually set) tells the engine to enable LOD on the entity. The value for the LOD key would be an integer of 0 through 3. A value of 3 tells the engine to only render the brushes at 75% and above of the detail LOD distance. A value of 2 renders at 50-75%. A value of 1 renders at 25-50%. 0 renders at 0-25% distance. If the key is not set, the brushes will render at all distances(unless set to detail).

This allows two things: Patch meshes get LOD, and LOD gradually degrades with distance.

An alternative would be in patch loading. At model load, bake 4 levels of LOD for the patch meshes into the model, and apply the same rules as above. This may not be desirable because some patch meshes may be required to stay at full LOD for specific reasons.

The only downside to this is that it requires more memory to store the LOD models, but it would cut down on polygon count at render time significantly.

Extend the current Material system to support GLSL shader programs. Normal map, specular map and glow map support.

Having light flares occlude behind objects would allow more detailed flares to be used. The following is a screenshot from Mass Effect, and is the back of the Normandy:
http://www.bioware.com/_commonext/images/me/screenshots/dlc/masseffect_01_1280x760.jpg

If this were tried in Osirion with a regular light entity and a similar flare texture, it would be partially visible from behind surfaces, which is not the desired effect as the light shouldn't be making a flare if it's seen from behind a wall. This is also the reason why most of the flares in Osirion are circular, because a horizontal flare(also known as the 'film-style' flare) is too difficult to get right when it can move in all angles.

In the end, this might actually lower performance a tiny bit because each flare has to be checked if it's behind a surface, but if a flare is completely blocked, it shouldn't render at all which would make up for the loss.

Q3 has several methods of doing this, including a timed fade, real fade, and instant.

Timed fade: when a flare becomes visible, begin rendering the quad and slowly increase its size and alpha from 0 until it reaches the size indicated by the entity. The rate of size increase is based on a simple timer.
Real fade: like timed fade, begin rendering the quad once visible but instead of using a fixed timer, only increase the size and alpha depending on how much of the flare is in view. I believe this is done via the size indicated in the entity, and is based on how much of it at its full size is visible(I'm guessing an invisible quad at max size is used to test this). This method is best because it can be tweaked to allow the flare to overlap the surfaces in front of it by a small amount, making it look very realistic.
Instant: the flare is instantly visible at max size and alpha as soon as the light entity's origin is visible by the camera.

Symptom: When rotating the ship, cubemap reflections are not rotated in effect, and stay in the default rotation axis.

At random, if you use 'give ship' while your ship is moving, you can be trapped in a state where you cannot turn or move in any direction. You are still given the new ship, however, and if you use 'give ship' a few more times, you can recover from the problem.

Leaving this as low-priority since 'give ship' is technically a cheat. Setting this as category 'src' because the cause is unknown.

If a real-time shadowing method is to be used, sharp stencil shadows would be more in-line with the game's visual style. It apparently can be done with very little code.

If multiple patch mesh points are in the same place(like on many windows), certain polygons are lit incorrectly on Intel hardware.

Shot taken from netbook with Intel 945G chipset.