This program shows an example of complicated full-scene shadow generation. This demo uses depth buffer-based method, which can also produce self-shadowing effect. (For details, see the Algorithm Details section.)
This list doesn't contain settings for drawing other than full-scene shadows.
| Functions | Parameters | Description |
GXLoadTexMtxImm |
Matrices | appropriate projection mtx |
| matrix destination | GX_TEXMTX0, GX_TEXMTX1 | |
| Types | GX_MTX3x4 | |
GXSetNumTexGens |
number of texgens | 2 |
GXSetTexCoordGen |
destination coord | GX_TEXCOORD0, GX_TEXCOORD1 |
| texgen type | GX_TG_MTX3x4 | |
| texgen src | GX_TG_POS | |
| mtx src | GX_TEXMTX0, GX_TEXMTX1 | |
GXInitTexObj |
Pointer to image data. | Appropriate. |
| width / height | some constant values | |
| Format | GX_TF_RGBA8 | |
| wrap mode(s, t) | GX_CLAMP | |
| mipmap | Always GX_FALSE. |
|
GXLoadTexObj |
Destination texture name. | GX_TEXMAP0, GX_TEXMAP1 |
GXInvalidateTexAll |
(no parameter) | |
GXSetTexCopySrc |
top / left / width / height | some constant values |
GXSetTexCopyDst |
width / height | some constant values |
| Format | GX_TF_Z24X8 | |
| mipmap filter | GX_FALSE | |
GXCopyTex |
Pointer to image data. | Appropriate. |
| clear operation | GX_TRUE | |
GXSetNumTevStages |
number of TEV stages | 3 (for 8bit compare mode), 5 (for 16bit compare mode) |
GXSetTevOrder |
each argument | see algorithm details |
GXSetTevColorIn |
each argument | see algorithm details |
GXSetTevColorOp |
each argument | see algorithm details |
GXSetTevAlphaIn |
each argument | see algorithm details |
GXSetTevAlphaOp |
each argument | see algorithm details |
GXSetTevColor |
tev color register | GX_TEVREG0, GX_TEVREG2 |
| color value | Appropriate. | |
GXSetCullMode |
culling mode | GX_CULL_FRONT, GX_CULL_BACK |
GXSetColorUpdate |
color update mode | GX_ENABLE / GX_DISABLE. |
GXPixModeSync |
(no parameter) |
The Menu button exits the test.
The main stick moves camera position.
The sub stick moves light position.
The A button changes display modes.
The B button switches the shadow projection type (perspective/orthographic).
The Y button changes the size of shadow map.
None.
See Section "7.1 Depth-Based Full-Scene Shadow Mapping" in "Graphics Library [Application Edition]."
03/01/2006 Initial version.