Triangle List Test Descriptions

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This chapter describes the Triangle List test programs. The following is defined for each test program:

• Name of the test program
• Test types (See the section "Denizen Test Types" on page 2 for the different test types.)
• Description of the test program
• Attributes tested by the program
• Operators tested by the program
• Output from the test program

· tlist_flag1

Test Types:	RGB, SM
Description:	Tests triangle list with vertex flags and facet color

Attributes Tested: XGL_3D_CTX_SURF_FRONT_ILLUMINATION

Operators Tested: xgl_object_get

                    xgl_object_set
                    xgl_triangle_list
Output:             A red trapezoid, a red triangle in the top row, a red

parrallelogram, and an attached yellow rhombus in the bottom row

· tlist_flag2

Test Types:	RGB, SM
Description:	Tests triangle list with vertex flags. Draws an independent triangle, tstrip, tstar followed by a tstrip and facet color.

Attributes Tested: XGL_3D_CTX_SURF_FRONT_ILLUMINATION

Operators Tested: xgl_object_get

                    xgl_object_set
                    xgl_triangle_list
Output:             A green independent triangle, a white tstar (looks like a

parallelepiped), and two white strips in the bottom rows.

· tlist_flag3

Test Types:	RGB, SM
Description:	Tests triangle list with vertex winding flags.

Attributes Tested: XGL_3D_CTX_SURF_GEOM_NORMAL

Operators Tested: xgl_object_get

Output:· tlist_indep	Two sets of triangles and polygon are drawn on the canvas. Some triangles are missing with the changing of the winding flag.
Test Types:	RGB, SM
Description:	Tests the drawing of independent triangle using the xgl_triangle_list() test, color interpolation and the use of facet colors.

Attributes Tested: XGL_3D_CTX_SURF_FRONT_ILLUMINATION

Operators Tested: xgl_object_get

Output:.....Three rows of triangles, with three triangles per row. The first row has red triangles. The second row has interpolated vertex colors; the first triangle colors are R, W and G, the second triangle colors are Y, B, Magenta, and

the third triangle colors are Cyan, Red and White. The third row has a white, red and green triangle tlist_indep.

· tlist_star

Test Types:	RGB, SM
Description:	Tests triangle list with global flag XGL_TLIST_FLAG_TRI_STAR. The tests also exercises vertex colors and facet colors.

Attributes Tested: XGL_3D_CTX_SURF_FRONT_ILLUMINATION

Operators Tested: xgl_object_get

Output:· tlist_star2	A green hexagon, an interpolated hexagon with first vertex color as white and vertex colors (Cyan, Red, Green, Blue, Yellow, Magenta), and a multi-colored hexagon (G, B, Y, Magenta, W, R). A red parrallelogram and an attached yellow rhombus in the bottom row.
Test Types:	RGB, SM
Description:	Tests triangle list with global flag as TSTAR and facet colors and normals and back culling enabled.

Attributes Tested: XGL_3D_CTX_SURF_FRONT_ILLUMINATION

Operators Tested: xgl_object_get

Output:.....A white parrallelogram