Rendering Primitives

<GBI commands>

gSPVertex ... Loads vertices into the chip's internal vertex cache.
gSPModifyVertex ... Updates vertex data after reading into the RSP
gSP1Triangle ... Renders one triangle (command for one triangle surface).
gSPLine3D ... Line rendering command (command for rendering one line).
gSPLineW3D ... Command for rendering line of specified width.
gSP2Triangles ... Triangle surface command (renders two triangles).
gSPSprite2DDraw ... Specifies sprite's screen coordinates and begins rendering.
gDPFillRectangle ... Renders a solid-color rectangle in screen coordinates.
gDPScisFillRectangle ... Renders a solid-color rectangle in screen coordinates.
gSPTextureRectangle ... Renders a textured 2D rectangle.
gSPTextureRectangleFlip ... Renders a textured rectangle after flipping the s/t coordinates
gSPScisTextureRectangle ... Renders a textured rectangle using scissoring.