// display the final image on the screen
void renderBufferToScreen(void){
glClear( GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT );
glLoadIdentity();
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,finalImage);
//use next line instead of previous to illustrate one-pass rendering
//glBindTexture(GL_TEXTURE_2D,backFaceBuffer);
reshapeOrtho(WINDOW_WIDTH, WINDOW_HEIGHT);
drawUnitQuad();
glDisable(GL_TEXTURE_2D);
}
// --------------------------------------------------------
void TouchWidgetRenderer::drawTexturedUnitQuad( GLuint tex_id, float alpha ) const
{
glActiveTexture(GL_TEXTURE0);
//if(_current_texture_id != tex_id)
//{
glBindTexture(GL_TEXTURE_2D, tex_id);
//_current_texture_id = tex_id;
//glBindTexture(GL_TEXTURE_2D, 0);
//}
drawUnitQuad(alpha);
}
// --------------------------------------------------------
void TouchWidgetRenderer::drawQuad( const QPointF & pos, const QSizeF & size, float rotation, float alpha ) const
{
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(pos.x(), pos.y(), 0);
glRotatef(rotation, 0, 0, 1);
glScalef(size.width(), size.height(), 0);
drawUnitQuad(alpha);
glPopMatrix();
}
void EndScene::_draw(float time)
{
std::vector<vec3> path;
skrand(625734);
for (int i = 0; i < 10; i++)
path.push_back(endCamPos + vec3(rand(-1.f, 1.f), rand(-1.f, 1.f), rand(-1.f, 1.f)));
mat4 mPersp = perspective(45.0f, demo.aspect, 0.5f, 1000.0f);
mat4 mCamera = lookAt(interpolatePath(path, time / Duration()) * 0.1f, endLookAt * 0.1f, vec3(0, 1, 0));
setDepthMode(DEPTH_FULL);
for (int i = 0; i < ARRAY_SIZE(tPark); i++) {
GlslShader *sDraw = sPark[i];
sDraw->bind();
sDraw->uniform("u_matrix", mPersp * mCamera);
sDraw->uniform("u_modelview", mCamera);
sDraw->uniform("u_projection", mPersp);
sDraw->uniform("u_alpha", 1.0f);
sDraw->bindTexture("tex", tPark[i], 0);
oPark->draw(i);
sDraw->unbind();
}
sDrawFlat->bind();
sDrawFlat->bindTexture("tex", tSmoke, 0);
setBlendMode(BLEND_ALPHA);
sDrawFlat->uniform("u_alpha", smokeAlpha);
mat4 sm(1);
sm = translate(sm, smokeCenter * 0.1f);
sm = rotate(sm, smokeRot, vec3(0, 1, 0));
sm = scale(sm, vec3(smokeSize, 1));
sDrawFlat->uniform("u_matrix", mPersp * mCamera * sm);
int animStep = int(floor(time * 24.0f));
int animX = animStep & 7;
int animY = (animStep >> 3) & 3;
float l = float(animX) / 8, r = float(animX + 1) / 8;
float b = float(animY) / 4, t = float(animY + 1) / 4;
drawRect(vec2(-0.5, -0.5), vec2(0.5, 0.5), vec2(l, t), vec2(r, b));
sDrawFlat->unbind();
setDepthMode(NO_DEPTH);
float logoFade = clamp((time - logoFadeStart) / (logoFadeEnd - logoFadeStart), 0.f, 1.f);
setBlendMode(BLEND_ALPHA);
sDrawFlat->bind();
sDrawFlat->bindTexture("tex", tLogo, 0);
sDrawFlat->uniform("u_alpha", logoFade);
mat4 lm(demo.fix_aspect(mat4(1)));
lm = translate(lm, logoCenter + vec3(sin(time) * 2, cos(2 * time), 0) * .01f);
lm = scale(lm, vec3(tLogo->aspect, 1, 1) * logoSize);
sDrawFlat->uniform("u_matrix", lm);
drawUnitQuad();
lm = demo.fix_aspect(mat4(1));
lm = translate(lm, textCenter + vec3(cos(time + .6135), sin(-2 * time - .6135), 0) * .003f);
lm = scale(lm, vec3(tText->aspect, 1, 1) * textSize);
sDrawFlat->uniform("u_matrix", lm);
sDrawFlat->bindTexture("tex", tText, 0);
drawUnitQuad();
sDrawFlat->unbind();
setBlendMode(NO_BLEND);
}