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PowerVR SGL Direct Quickstart Tutorial - Step 1

Developing a 3D application on PowerVR is easy.
To illustrate this, a very simple PowerSGL Direct example is presented here
which simply draws a triangle on the screen. This can be done in very few steps :

#include "sgl.h" #define RGB(r, g, b) ((sgl_uint32) (((r) << 16) \| ((g) << 8) \| (b))) SGLCONTEXT SGLContext; SGLVERTEX Vertices[] = { /* x y z (1/W) col spec.col (u/W)(v/W)*/ { 0.0f, 0.0f,0.0f,0.1f,RGB(255,0,0),RGB(0,0,0),0.0f,0.0f}, {639.0f, 0.0f,0.0f,0.8f,RGB(255,0,0),RGB(0,0,0),0.0f,0.0f}, {320.0f,479.0f,0.0f,0.1f,RGB(255,0,0),RGB(0,0,0),0.0f,0.0f} }; int TriFaceData[][3] = {0,1,2}; int Device;	1 Define the triangle vertices and the triangle face.
void main () { Device = sgl_create_screen_device (0,640,480,sgl_device_16bit,TRUE); if (Device >= 0) {	2 Create a screen device
sgltri_startofframe (&SGLContext); sgltri_triangles (&SGLContext, 1, TriFaceData, Vertices); sgltri_render (&SGLContext);	3 Render !
sgl_delete_device (Device); } }	4 Close Screen Device

You may view this source code.

Now that the first step is done, we can easily modify this example step by step to make it more fancy.

Firstly, we will simply add another triangle to the scene.
Click here to see how it's done ...

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