|
|
| (224 intermediate revisions by 10 users not shown) |
| Line 1: |
Line 1: |
| − | This page describes the structure of the buffer for [[GX_Commands|GX command]] 1 with the registers at [[GPU|0x1EF018E0]]. This buffer is used for GPU commands including OpenGL commands, each 8-byte entry in the buffer is a command. Cmd+0 is the command parameter, and cmd+4 is the cmdID.
| + | Merged with [[GPU/Internal_Registers]] |
| − | | |
| − | === Commands ===
| |
| − | {| class="wikitable" border="1"
| |
| − | ! CommandID
| |
| − | ! Parameter
| |
| − | ! Description
| |
| − | |-
| |
| − | | 0x000F0010
| |
| − | | Value is 0x12345678
| |
| − | | This command is always the last command in the buffer.
| |
| − | |-
| |
| − | | 0x000F0110
| |
| − | | Value 0x1
| |
| − | | This command is immediately before CmdID 0x000F0010, this is used elsewhere in the buffer as well.
| |
| − | |-
| |
| − | | 0x000F0111
| |
| − | | Value 0x1
| |
| − | | This command is immediately before CmdID 0x000F0110, however CmdID 0x000F0110 doesn't always follow this command.
| |
| − | |-
| |
| − | | 0x000F0042
| |
| − | | float y vector
| |
| − | | This sets Y scaling for the current matrix.
| |
| − | |-
| |
| − | | 0x000F0044
| |
| − | | float x vector
| |
| − | | This sets X scaling for the current matrix.
| |
| − | |-
| |
| − | | 0x000F02C0
| |
| − | | <nowiki>0x80000000 | ID?</nowiki> When bit31 is clear, the specified vertices are not rendered via CmdID 0xXXXF02C1.
| |
| − | | This is used immediately before CmdID 0xXXXF02C1.
| |
| − | |-
| |
| − | | 0xXXXF02C1
| |
| − | | float X coordinate for the first vertex
| |
| − | | CmdID is <nowiki>0x000F02C1 | ((totalvertices<<22) - 0x100000).</nowiki> The vertex entries is the data following the command. The first word in the first vertex entry is the Y coordinate.
| |
| − | |}
| |
| − | | |
| − | === Vertex Entry ===
| |
| − | {| class="wikitable" border="1"
| |
| − | ! Index Word
| |
| − | ! Description
| |
| − | |-
| |
| − | | 0
| |
| − | | float X coordinate, for the first vertex this is stored in the command parameter instead.
| |
| − | |-
| |
| − | | 1
| |
| − | | float Y coordinate
| |
| − | |-
| |
| − | | 2
| |
| − | | float Z coordinate
| |
| − | |-
| |
| − | | 3
| |
| − | | Padding for the last vertex entry
| |
| − | |}
| |
Latest revision as of 08:06, 5 December 2015