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→Texturing registers
| unsigned, Clear texture cache (0 = don't clear, 1 = clear)
| unsigned, Clear texture cache (0 = don't clear, 1 = clear)
|-
|-
| 17
| 17-31
| 0x0
| 0x0
|}
|}
This register is used to enable texture units.
Texture 3 coordinates values:
Texture 3 coordinates values:
| unsigned, Alpha
| unsigned, Alpha
|}
|}
This register is used to set a texture unit's border color.
=== GPUREG_TEXUNIT''i''_DIM ===
=== GPUREG_TEXUNIT''i''_DIM ===
| unsigned, Width
| unsigned, Width
|}
|}
This register is used to set a texture unit's dimensions.
=== GPUREG_TEXUNIT''i''_PARAM ===
=== GPUREG_TEXUNIT''i''_PARAM ===
| unsigned, Wrap S
| unsigned, Wrap S
|-
|-
| 16
| 16-17
| 0x0
| 0x0
|-
|-
| unsigned, Type (Texture 0 only)
| unsigned, Type (Texture 0 only)
|}
|}
This register is used to set a texture unit's extra parameters.
Filter values:
Filter values:
| unsigned, Min Level
| unsigned, Min Level
|}
|}
This register is used to configure a texture unit's level of detail.
=== GPUREG_TEXUNIT''i''_ADDR''i'' ===
=== GPUREG_TEXUNIT''i''_ADDR''i'' ===
| unsigned, Texture physical address >> 3 (upper 6 bits reused from first ADDR register)
| unsigned, Texture physical address >> 3 (upper 6 bits reused from first ADDR register)
|}
|}
This register is used to set a texture unit's physical address(es) in memory.
If the texture is a cube:
If the texture is a cube:
| fixed0.0.24, Z bias (upper 23 bits)
| fixed0.0.24, Z bias (upper 23 bits)
|}
|}
This register is used to set a texture unit's shadow texture properties.
=== GPUREG_TEXUNIT''i''_TYPE ===
=== GPUREG_TEXUNIT''i''_TYPE ===
| unsigned, [[GPU_Textures#Texture_color_types|Format]]
| unsigned, [[GPU_Textures#Texture_color_types|Format]]
|}
|}
This register is used to set a texture unit's data format.
=== GPUREG_LIGHTING_ENABLE0 ===
=== GPUREG_LIGHTING_ENABLE0 ===
| unsigned, Enabled (0 = disabled, 1 = enabled)
| unsigned, Enabled (0 = disabled, 1 = enabled)
|}
|}
This register is used to enable lighting.
=== GPUREG_TEXUNIT3_PROCTEX0 ===
=== GPUREG_TEXUNIT3_PROCTEX0 ===
| float1.5.10, Texture bias (lower 8 bits)
| float1.5.10, Texture bias (lower 8 bits)
|}
|}
This register is used to configure the procedural texture unit.
Clamp values:
Clamp values:
| float1.5.10, U-direction noise phase
| float1.5.10, U-direction noise phase
|}
|}
This register is used to configure the procedural texture unit's U-direction noise amplitude/phase.
=== GPUREG_TEXUNIT3_PROCTEX2 ===
=== GPUREG_TEXUNIT3_PROCTEX2 ===
| float1.5.10, V-direction noise phase
| float1.5.10, V-direction noise phase
|}
|}
This register is used to configure the procedural texture unit's V-direction noise amplitude/phase.
=== GPUREG_TEXUNIT3_PROCTEX3 ===
=== GPUREG_TEXUNIT3_PROCTEX3 ===
| float1.5.10, V-direction noise frequency
| float1.5.10, V-direction noise frequency
|}
|}
This register is used to configure the procedural texture unit's U-direction and V-direction noise frequency.
=== GPUREG_TEXUNIT3_PROCTEX4 ===
=== GPUREG_TEXUNIT3_PROCTEX4 ===
| float1.5.10, Texture bias (upper 8 bits)
| float1.5.10, Texture bias (upper 8 bits)
|}
|}
This register is used to configure the procedural texture unit.
Minification filter values:
Minification filter values:
| 0xE0C080
| 0xE0C080
|}
|}
This register is used to set the procedural texture unit's offset.
=== GPUREG_PROCTEX_LUT ===
=== GPUREG_PROCTEX_LUT ===
| unsigned, Reference table
| unsigned, Reference table
|}
|}
This register is used to set which look-up table to write to, with GPUREG_PROCTEX_LUT_DATA''i'', at what index.
Reference table values:
Reference table values:
| unsigned, Alpha source 2
| unsigned, Alpha source 2
|}
|}
This register configures a texture combiner's sources.
Source values:
Source values:
| unsigned, Alpha operand 2
| unsigned, Alpha operand 2
|}
|}
This register configures a texture combiner's operands.
RGB operand values:
RGB operand values:
| unsigned, Alpha combine
| unsigned, Alpha combine
|}
|}
This register configures a texture combiner's combine mode.
Combine values:
Combine values:
| unsigned, Alpha
| unsigned, Alpha
|}
|}
This register configures a texture combiner's constant color.
=== GPUREG_TEXENV''i''_SCALE ===
=== GPUREG_TEXENV''i''_SCALE ===
| unsigned, Alpha scale
| unsigned, Alpha scale
|}
|}
This register configures a texture combiner's scale value.
Scale values:
Scale values:
|}
|}
This register is shared between the gas/fog mode configuration and TexEnv buffer inputs. TexEnv buffer inputs are typically written with a mask of 0x2, and the gas/fog mode configuration is typically written with a mask of 0x5.
This register is shared between the gas/fog mode configuration and texture combiner buffer inputs. Texture combiner buffer inputs are typically written with a mask of 0x2, and the gas/fog mode configuration is typically written with a mask of 0x5.
Fog mode values:
Fog mode values:
| unsigned, Blue
| unsigned, Blue
|}
|}
This register is used to configure the color of fog.
=== GPUREG_GAS_ATTENUATION ===
=== GPUREG_GAS_ATTENUATION ===
| float1.5.10, Gas density attenuation
| float1.5.10, Gas density attenuation
|}
|}
This register is used to configure the gas density attenuation.
=== GPUREG_GAS_ACCMAX ===
=== GPUREG_GAS_ACCMAX ===
| float1.5.10, Gas maximum density accumulation
| float1.5.10, Gas maximum density accumulation
|}
|}
This register is used to configure the gas maximum density accumulation.
=== GPUREG_FOG_LUT_INDEX ===
=== GPUREG_FOG_LUT_INDEX ===
| unsigned, Index
| unsigned, Index
|}
|}
This register is used to set what index to write to with GPUREG_FOG_LUT_DATA''i''.
=== GPUREG_FOG_LUT_DATA''i'' ===
=== GPUREG_FOG_LUT_DATA''i'' ===
| unsigned, Alpha
| unsigned, Alpha
|}
|}
This register is used to configure the texture combiner buffer color.
== Framebuffer registers ==
== Framebuffer registers ==