Note that most of this is currently commented out due to lack of proper blending in TinyGL. Once blending is properly implemented the commented out parts can be enabled.
- lower the distance to the near plane of the frustum for Overworld
and change the other parameters accordingly
- this makes the following actors visible:
- background of directions to Pegnose Pete's house (issue #869)
- Murray in the murray_go easter egg
- the trophies during the diving contest (upper left corner)
- the screenshots for the save games (still with the wrong texture)
- all actors of the Overworld should cover any non-Overworld drawings
- Overworld actors need to use the depth buffer so that e.g. the
pause screen is drawn above the inventory
- this fixes issue #927 (inventory is drawn above background of pause
or menu screen)
This adds math classes for doing frustum culling in software. These could be used for optimizing performance in many other places as well. For example, if an actor is outside the view frustum, it may not be necessary to do expensive keyframe animation and vertex skinning calculations for that actor.
Lighting is done by calculating vertex colors in software, since the attenuation model used in EMI cannot be simulated with OpenGL fixed function lighting. The original game does the lighting this way as well. Ideally for the modern shader-based renderer a shader would be used for this instead.
In EMI the screen is dimmed while playing movies. The blit() function in
TinyGL is required to work in that case so that movie subtitles are
displayed.
Use matrix multiplications to fix the rotation for attached actors:
- calculate the final transformation matrix recursively for attached
actors (instead of using getWorldPos and getWorldRot)
- use a different order for building the quaternions out of the Euler
angles
- changed handling of camera position (just apply the rotation of the
camera, the (inverted) position of the camera and the position of the
actor
- no functional changes for GRIM
- no changes for drawing in overworld
Code simplification for GRIM:
- no need to use _currentPos in calculations for GRIM since it is
always (0, 0, 0)
This fixes:
- the rotation of any items Guybrush is holding in his hands
- the handling of the pole when using the raft in the swamps
- getting the bananas with the banana picker
When mapping a sprite to a GL polygon its dimensions are scaled by the ratio
between the current screen resolution and the native game resolution. When
the polygon is rendered it is scaled again, causing sprites to be displayed
unproportionally big when using larger screen resolutions.
Previously, we split the background layers into everything
before SO 15 and after, and drew like that. However, this caused
the pink ship in shi.setb to not be drawn.
This patch draws the layers of the background at intervals of ten.
So if a set has six layers, layer 5 is the background and 4,3,2,1,0
are rendered at sortorder 40,30,20,10,0.
The clean buffer code needs two layers. Every actor needs its buffer,
but we also need a global one. The actors' buffers blit to the global buffer
which then gets blitted to screen.
Joni Vähämäki
Christian Krause
Stefano Musumeci
Joel Teichroeb
Joseph Jezak
Pawel Kolodziejski
Ingo van Lil
Christian Krause
Einar Johan Trøan Sømåen
Dries Harnie
sietschie
Dries Harnie
Pawel Kolodziejski
Christian Mayer
Giulio Camuffo