Transparent chicago extended shaders are essentially identical to shader_transparent_chicago, but have an additional 2-stage block used when video hardware does not support more than 2 maps in a shader (which can be simulated with arguments). There is no reason to use this shader type over shader_transparent_chicago on modern systems.
See shader_transparent_chicago for more documentation.
Field | Type | Comments |
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| uint8 |
| bitfield |
Flag | Mask | Comments |
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| 0x1 | | | 0x2 | | | 0x4 | | | 0x8 | | | 0x10 | | | 0x20 | | | 0x40 | | | 0x80 | |
|
| enum |
Option | Value | Comments |
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| 0x0 | | | 0x1 | | | 0x2 | | | 0x3 | |
|
| enum |
Option | Value | Comments |
---|
| 0x0 | | | 0x1 | | | 0x2 | | | 0x3 | | | 0x4 | | | 0x5 | | | 0x6 | | | 0x7 | |
|
| enum |
Option | Value | Comments |
---|
| 0x0 | | | 0x1 | | | 0x2 | |
|
| enum |
Option | Value | Comments |
---|
| 0x0 | | | 0x1 | | | 0x2 | | | 0x3 | | | 0x4 | |
|
| float |
| TagDependency : lens_flare |
| Block |
Field | Type | Comments |
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| TagDependency : shader |
|
| Block |
Field | Type | Comments |
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| bitfield | Flag | Mask | Comments |
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| 0x1 | | | 0x2 | | | 0x4 | | | 0x8 | |
| | enum | Option | Value | Comments |
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| 0x0 | | | 0x1 | | | 0x2 | | | 0x3 | | | 0x4 | | | 0x5 | | | 0x6 | | | 0x7 | | | 0x8 | | | 0x9 | | | 0xA | | | 0xB | | | 0xC | |
| | enum ? | | float | | float | | float | | float | | float | | float | | TagDependency : bitmap | | enum ? | | enum | Option | Value | Comments |
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| 0x0 | | | 0x1 | | | 0x2 | | | 0x3 | | | 0x4 | | | 0x5 | | | 0x6 | | | 0x7 | | | 0x8 | | | 0x9 | | | 0xA | | | 0xB | |
| | float | | float | | float | | enum ? | | enum ? | | float | | float | | float | | enum ? | | enum ? | | float | | float | | float | | Point2D | Field | Type | Comments |
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| float | | float |
|
|
| Block ? |
Flag | Mask | Comments |
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| 0x1 | | | 0x2 | | | 0x4 | Custom edition originally had an incorrect implementation of the multiply and double multiply framebuffer blend functions for transparent shaders which made fully dark pixels transparent. MCC is fixed but this flag allows modders to use custom edition's blending, which can help when porting legacy tags to the updated engine. |
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Thanks to the following individuals for their research or contributions to this topic:
- Jakey (Explaining purpose of this tag)
- Kavawuvi (Invader tag definitions)
- MosesOfEgypt (Tag structure research)