PlayStation Development Network

Posted: **November 19th, 2019, 4:32 am**

Oh, i have a small question about the 3D sorting now. Itâ€™s not worth it to create another topic here :>

What's the best type of sorting the polygons for my game scene?

Some pseudo-code:

Version 1:
Main:

Code: Select all

int main(void) {

	SetDispMask(1);

	while (1) {
		PrepDisp();

		SortStuff();

		Display();
	}
}
return(0);

Func:

Code: Select all

void SortStuff() {
    // INIT SOME STUFF
    if ((smooth)) {
        if (textured) {
            if (poly != quad) {
                // DO GT3 CODE
            } else {
                // DO GT4 CODE
            }
        } else {
            if (poly != quad) {
                // DO G3 CODE
            } else {
                // DO G4 CODE
            }
        }
    } else {
        if (textured) {
            if (poly != quad) {
                // DO FT3 CODE
            } else {
                // DO FT4 CODE
            }
        } else {
            if (poly != quad) {
                // DO F3 CODE
            } else {
                // DO F4 CODE
            }
        }
    }
    
    // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
    
    if ((smooth)) {
        if (textured) {
            if (poly != quad) {
                // DO GT3 ADDPRIM
            } else {
                // DO GT4 ADDPRIM
            }
        } else {
            if (poly != quad) {
                // DO G3 ADDPRIM
            } else {
                // DO G4 ADDPRIM
            }
        }
    } else {
        if (textured) {
            if (poly != quad) {
                // DO FT3 ADDPRIM
            } else {
                // DO FT4 ADDPRIM
            }
        } else {
            if (poly != quad) {
                // DO F3 ADDPRIM
            } else {
                // DO F4 ADDPRIM
            }
        }
    }
}

Version 2:
Main:

Code: Select all

int main(void) {

	SetDispMask(1);

	while (1) {
		PrepDisp();

		SortStuff();

		Display();
	}
}
return(0);

Func:

Code: Select all

void SortStuff() {
    // INIT SOME STUFF
    if ((smooth)) {
        if (textured) {
            if (poly != quad) {
                // DO GT3 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            } else {
                // DO GT4 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            }
        } else {
            if (poly != quad) {
                // DO G3 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            } else {
                // DO G4 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            }
        }
    } else {
        if (textured) {
            if (poly != quad) {
                // DO FT3 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            } else {
                // DO FT4 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            }
        } else {
            if (poly != quad) {
                // DO F3 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            } else {
                // DO F4 CODE
                // DO UNIVERSAL CODE FOR ALL POLYGON TYPES
                // DO ADDPRIM FOR THIS POLYGON TYPE
            }
        }
    }
}

Version 3:
Main:

Code: Select all

int main(void) {

	SetDispMask(1);

	while (1) {
		PrepDisp();

		SortG3();   SortG4();
		SortGT3(); SortGT4();
		SortF3();    SortF4();
		SortFT3();  SortFT4();

		Display();
	}
}
return(0);

Func:

Code: Select all

void SortG3() {
    if (smooth && poly != quad && !textured) {
        // DO G3 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortG4() {
    if (smooth && poly == quad && !textured) {
        // DO G4 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortGT3() {
    if (smooth && poly != quad && textured) {
        // DO GT3 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortGT4() {
    if (smooth && poly == quad && textured) {
        // DO GT4 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortF3() {
    if (!smooth && poly != quad && !textured) {
        // DO F3 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortF4() {
    if (!smooth && poly == quad && !textured) {
        // DO F4 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortFT3() {
    if (!smooth && poly != quad && textured) {
        // DO FT3 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}
void SortFT4() {
    if (!smooth && poly == quad && textured) {
        // DO FT4 CODE
        // DO UNIVERSAL CODE HERE
        // DO ADDPRIM FOR THIS POLYGON TYPE
    }
}

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