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draw_gouraud_sprite(3) Allegro manual draw_gouraud_sprite(3) NAME draw_gouraud_sprite - Draws a sprite with gouraud shading. Allegro game programming library. SYNOPSIS #include <allegro.h> void draw_gouraud_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int c1, int c2, int c3, int c4); DESCRIPTION More sophisticated version of draw_lit_sprite(): the 'color' parameter is not constant across the sprite image anymore but interpolated between the four specified corner colors. The corner values passed to this function in- dicate the strength of the color applied on them, ranging from 0 (no strength) to 255 (full strength). Example: /* Some one time initialisation code. */ COLOR_MAP global_light_table; create_light_table(&global_trans_table, my_palette, 0, 0, 0, NULL); ... if (get_color_depth() == 8) color_map = &global_light_table; else set_trans_blender(0, 0, 0, 128); /* Enemies are in shadow unless lit by torch. */ draw_gouraud_sprite(buffer, menacing_spy, x, y, light_strength_on_corner_1, light_strength_on_corner_2, light_strength_on_corner_3, light_strength_on_corner_4); SEE ALSO draw_sprite(3), draw_lit_sprite(3), color_map(3), set_trans_blender(3), bitmap_mask_color(3), exshade(3) Allegro version 4.4.3 draw_gouraud_sprite(3)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO
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