GLPOLYGONMODE(3G)

✨ NAME ✨

okay so bestie, this is glPolygonMode from the 3G manual — yes, the GLPOLYGONMODE(3G) page 💅 — and it selects a polygon rasterization mode. That's the whole name vibe.

💅 C SPECIFICATION 💅

Here's the exact signature, no cap:

void glPolygonMode( GLenum face,
                    GLenum mode )

🎀 PARAMETERS 🎀

• face — tells you which polygons mode applies to. Must be GL_FRONT for front-facing polygons, GL_BACK for back-facing polygons, or GL_FRONT_AND_BACK for front- and back-facing polygons. iconic little selector.
• mode — tells you how polygons will be rasterized. Accepted values are GL_POINT, GL_LINE, and GL_FILL. The initial value is GL_FILL for both front- and back-facing polygons. default behavior said hi.

🌸 DESCRIPTION 🌸

glPolygonMode controls the interpretation of polygons for rasterization. face describes which polygons mode applies to: front-facing polygons (GL_FRONT), back-facing polygons (GL_BACK), or both (GL_FRONT_AND_BACK). The polygon mode affects only the final rasterization of polygons. In particular, a polygon's vertices are lit and the polygon is clipped and possibly culled before these modes are applied. periodt.

Three modes are defined and can be specified in mode:

• GL_POINT — polygon vertices that are marked as the start of a boundary edge are drawn as points. Point attributes such as GL_POINT_SIZE and GL_POINT_SMOOTH control the rasterization of the points. Polygon rasterization attributes other than GL_POLYGON_MODE have no effect. dots!! little polygon freckles!!
• GL_LINE — boundary edges of the polygon are drawn as line segments. They are treated as connected line segments for line stippling; the line stipple counter and pattern are not reset between segments (see glLineStipple). Line attributes such as GL_LINE_WIDTH and GL_LINE_SMOOTH control the rasterization of the lines. Polygon rasterization attributes other than GL_POLYGON_MODE have no effect. wireframe couture ✨
• GL_FILL — the interior of the polygon is filled. Polygon attributes such as GL_POLYGON_STIPPLE and GL_POLYGON_SMOOTH control the rasterization of the polygon. full-coverage moment.

🌈 EXAMPLES 🌈

To draw a surface with filled back-facing polygons and outlined front-facing polygons, call:

glPolygonMode(GL_FRONT, GL_LINE);

🦋 NOTES 🦋

Vertices are marked as boundary or nonboundary with an edge flag. Edge flags are generated internally by the GL when it decomposes polygons; they can be set explicitly using glEdgeFlag. This is giving “the GL has its own internals, bestie” energy 💫.

🔥 ERRORS 🔥

• GL_INVALID_ENUM is generated if either face or mode is not an accepted value. rude little enum situation.
• GL_INVALID_OPERATION is generated if glPolygonMode is executed between the execution of glBegin and the corresponding execution of glEnd. do NOT do this between glBegin and glEnd, bestie 😭.

👑 ASSOCIATED GETS 👑

• glGet with argument GL_POLYGON_MODE — that's the getter vibe. go get that polygon mode tea ☕

⭐ SEE ALSO ⭐

• glBegin(3G)
• glEdgeFlag(3G)
• glLineStipple(3G)
• glLineWidth(3G)
• glPointSize(3G)
• glPolygonStipple(3G)

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okay bye bestie — this has been GLPOLYGONMODE(3G), the footer vibe we got, from the 3G manual 🌈. There wasn't a separate source/version/date line to hype up on the page, so consider this your cute sign-off: GLPOLYGONMODE(3G) energy, periodt 💖✨