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--- fast3d_display_list_commands [2016/01/24 14:43]
david [B6: F3D_CLEARGEOMETRYMODE]
+++ — (current)
@@ Line 1: / Line 1: @@
-====== Fast3D Display List Commands ======
-The Fast3D display list commands are microcode that are passed to the RSP for rendering.  The are all 8 bytes long.
-===== Fast3D Commands =====
-==== 03: F3D_MOVEMEM ====
-Used in Super Mario 64 to load vector normals (shading) RGB values.
-''03 [<color darkgrey>TT</color>] 00 00 [<color purple>AA AA AA AA</color>]''
-| <color darkgrey>T</color> | If 86, loads light values. If 88, loads dark values |
-| <color purple>A</color> | Segmented address of vectors |
-Example: Loads light RGB from 0x0 in RAM bank 0x0E; loads dark RGB from 0x08 in RAM Bank 0x0E
-86 00 00 0E 00 00 00
-88 00 00 0E 00 00 08
-----
-==== 04: F3D_VTX ====
-Fills the vertex buffer with vertex information (ex. coordinates, color values).  Max amount of bytes to load in F3D is 0x100 (16 vertices).
-''04 [<color darkred>XX</color>] [<color darkgreen>YY YY</color>] [<color purple>AA AA AA AA</color>]''
-| <color darkred>X</color> | Where to start writing vertices inside the vertex buffer |
-| <color darkgreen>Y</color> | Amount of vertices to write (* 0x10) |
-| <color purple>A</color> | Segmented address where vertices are stored |
-Example: Load 15 (0xF0 / 0x10) vertices from 0x0E000780 (current map data) - and put them into the vertex buffer, starting at position 0x10 (15 vertices - 14).
-E0 00 F0 0E 00 07 80
-----
-==== 06: F3D_DL ====
-Signifies the start of a Display List. May be used to link data and branch the current DL.
-''06 00 00 00 [<color purple>AA AA AA AA</color>]''
-| <color purple>A</color> | Segmented Address to branch to |
-Example: Loads a display list from 0xA50 in bank 0x07.
-00 00 00 07 00 0A 50
-----
-==== B5: F3D_QUAD ====
-Renders one quad according to the vertices inside the vertex buffer
-''B5 [<color darkred>AA</color>] [<color darkgreen>BB</color>] [<color darkblue>CC</color>] 00 [<color red>DD</color>] [<color green>EE</color>] [<color blue>FF</color>]''
-| <color darkred>A</color> | First vertex to use for the quad (* 0x0A) |
-| <color darkgreen>B</color> | Second vertex to use for the quad (* 0x0A) |
-| <color darkblue>C</color> | Third vertex to use for the quad (* 0x0A) |
-| <color red>D</color> | Fourth vertex to use for the quad (* 0x0A) |
-| <color green>E</color> | Fifth vertex to use for the quad (* 0x0A) |
-| <color blue>F</color> | Sixth vertex to use for the quad (* 0x0A) |
-Example: Render a quad using the vertex data specified at the vertex buffer positions 0, 1 (0x0A / 0x0A), 2 (0x14 / 0x0A), 0, 2 (0x14 / 0x0A) and 3 (0x1E / 0x0A).
-  B5 00 0A 14 00 00 14 1E
-----
-==== B6: F3D_CLEARGEOMETRYMODE ====
-Enables or disables certain geometry parameters (ex. lighting, front-/backface culling, Z-buffer). Used at start of Display List.
-''B6 00 00 00 [<color purple>AA AA AA AA</color>]''
-| <color purple>A</color> | Various parameters |
-Parameters (can be OR'd together):
-| 0x00000001 | Z-Buffer |
-| 0x00000004 | Vertex colors |
-| 0x00001000 | Front-face culling |
-| 0x00002000 | Back-face culling |
-| 0x00004000 | Crystal effect? |
-| 0x00010000 | Fog |
-| 0x00020000 | Lighting |
-Examples:
-  B6 00 00 00 00 02 20 00 : Vertex RGB, no culling
-  B6 00 00 00 00 02 00 00 : Vertex RGB, culling
-  B6 00 00 00 00 00 00 00 : No vertex RGB, culling
-  B6 00 00 00 00 00 22 00 : No vertex RGB, no culling
-----
-==== B7: F3D_SETGEOMETRYMODE ====
-Enables or disables certain geometry parameters (ex. lighting, front-/backface culling, Z-buffer). Used at end of Display List.
-''B7 00 00 00 [<color purple>AA AA AA AA</color>]''
-| <color purple>A</color> | Various parameters |
-Examples:
-  B7 00 00 00 00 02 20 00 : Vertex RGB, no culling
-  B7 00 00 00 00 02 00 00 : Vertex RGB, culling
-  B7 00 00 00 00 00 00 00 : No vertex RGB, culling
-  B7 00 00 00 00 00 22 00 : No vertex RGB, no culling
-----
-==== B8: F3D_ENDDL ====
-Terminates the current Display List
-''B8 00 000 000 00 00 00''
-----
-==== BB: F3D_TEXTURE ====
-Sets the texture scaling factor.
-''BB 00 00 ?? ?? ?? ?? ??''
-Examples:
-  BB 00 00 01 FF FF FF FF : Standard - at start for 1 scaling.
-  BB 00 00 01 0F 80 07 C0 : Special case - at start for environment mapping.
-  BB 00 00 00 FF FF FF FF : Always reset to at end of the DL to reset scale to 0.
-----
-==== BF: F3D_TRI1 ====
-Renders one triangle according to the vertices inside the vertex buffer
-''BF 00 00 00 [<color darkred>AA</color>] [<color darkgreen>BB</color>] [<color darkblue>CC</color>]''
-| <color darkred>A</color> | First vertex to use for the triangle (* 0x0A) |
-| <color darkgreen>B</color> | Second vertex to use for the triangle (* 0x0A) |
-| <color darkblue>C</color> | Third vertex to use for the triangle (* 0x0A) |
-Example: Render a triangle using the vertex data specified at the vertex buffer positions 0, 1 (0x0A / 0x0A) and 2 (0x14 / 0x0A).
-  BF 00 00 00 00 0A 14
-----
-==== F2: G_SETTILESIZE ====
-Sets the texture coordinates and size
-''F2 00 00 00 00 [<color darkred>WW W</color>][<color darkgreen>H HH</color>]''
-| <color darkred>W</color> | (width - 1) << 2 |
-| <color darkgreen>H</color> | (hieght - 1) << 2 |
-Examples:
-  F2 00 00 00 00 07 C0 7C : 32x32 textures
-  F2 00 00 00 00 0F C0 7C : 64x32
-  F2 00 00 00 00 07 C0 FC : 32x64
-----
-==== F3: G_LOADBLOCK ====
-Determines how much data to load after SETTIMG
-''F3 00 00 00 ?? ?? ?? ??''
-Examples:
-  F3 00 00 00 07 7F F1 00 : 32x64 or 64x32 RGBA Textures
-  F3 00 00 00 07 3F F1 00 : 32x32 RGBA Textures
-----
-==== F5: G_SETTILE ====
-Sets the texture properties (ex. mirroring)
-''F5 ?? ?? ?? ?? ?? ?? ??''
-Examples:
-  F5 10 00 00 07 00 00 00 : Always loaded first for normal RGBA, followed by another F5 command
-  F5 70 00 00 07 00 00 00 : Always loaded first for Grayscale, followed by another F5 command
-  F5 10 10 00 07 01 40 50 : Normal for 32x32 textures after G_SETTILESIZE
-  F5 10 20 00 07 01 40 60 : Normal for 64x32 textures after G_SETTILESIZE
-  F5 70 10 00 07 01 40 50 : Grayscale for 32x32 textures after G_SETTILESIZE
-----
-==== F8: G_SETFOGCOLOR ====
-Sets the fog color
-''F8 00 00 00 [<color red>RR</color>] [<color green>GG</color>] [<color blue>BB</color>] [<color darkgray>AA</color>]''
-| R | red value |
-| G | green value |
-| B | blue value |
-| A | typically set to FF |
-Example: set the fog for the following polygons to pure green
-  F8 00 00 00 00 FF 00 FF
-----
-==== FB: G_SETENVCOLOR ====
-Sets the environment color for combiner
-''FB 00 00 00 [<color red>RR</color>] [<color green>GG</color>] [<color blue>BB</color>] [<color darkgray>AA</color>]''
-| R | red value |
-| G | green value |
-| B | blue value |
-| A | alpha value |
-Example: make everything loaded underneath the command red, and semi-transparent
-  FB 00 00 00 FF 00 00 8C
-----
-==== FC: G_SETCOMBINE ====
-Performs combining operations (ex. multi-texturing)
-''FC ?? ?? ?? ?? ?? ?? ??''
-Examples:
-  FC 12 7F FF FF FF F8 38 : Standard usage for solid RGBA textures
-  FC 12 18 24 FF 33 FF FF : Standard usage for alpha RGBA textures
-----
-==== FD: G_SETTIMG ====
-Sets the texture image offset
-''FD 10 00 00 [<color purple>AA AA AA AA</color>]''
-| <color purple>A</color> | Segmented address of texture |
-Example: Load texture position from 0x90 in RAM bank 0x04
-  FD 10 00 00 04 00 00 90
-===== References =====
-  * http://www.smwcentral.net/?p=viewthread&t=74389
-  * http://origami64.net/showthread.php?tid=114
-  * http://n64.icequake.net/doc/n64intro/kantan/step2/4-3.html
-  * http://level42.ca/projects/ultra64/Documentation/man/pro-man/pro25/25-01.html
-  * http://wiki.spinout182.com/w/F3DEX2

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