//
// Render
//
void Render(unsigned Width, unsigned Height)
{
g_ElapsedTime = GetElapsedMilliseconds();
BeginFrame();
glViewport(0, 0, Width, Height);
glClear(GL_DEPTH_BUFFER_BIT); // No need to clear color buffer, because we draw background image
g_View = XMMatrixTranslation(0.0f, 0.0f, g_Distance);
g_Proj = XMMatrixPerspectiveFovRH(XMConvertToRadians(45.0f),
Width / (float)Height, 0.1f, 100.0f);
// Bunny rotation
g_SpinX += g_ElapsedTime / 50.0f;
// Setup light positions
for (int i = 0; i < MAX_POINT_LIGHTS; ++i)
{
POINT_LIGHT_SOURCE *pLight = &g_PointLights[i];
CalcLightPosition(pLight);
}
g_pBackground->SetScreenSize(Width, Height);
g_pBackground->Draw();
DrawBunny();
DrawLights();
DrawHUD(Width, Height);
EndFrame();
g_pFraps->OnPresent();
}
GLUSboolean display(GLUSfloat time)
{
g_LightTimer.Update(time);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutil::MatrixStack modelMatrix;
modelMatrix.SetMatrix(g_viewPole.CalcMatrix());
const glm::vec4 &worldLightPos = CalcLightPosition();
const glm::vec4 &lightPosCameraSpace = modelMatrix.Top() * worldLightPos;
glUseProgram(g_MonoDiffuseProgram.program);
glUniform4f(g_MonoDiffuseProgram.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f);
glUniform4f(g_MonoDiffuseProgram.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform3fv(g_MonoDiffuseProgram.cameraSpaceLightPosUnif,1, glm::value_ptr(lightPosCameraSpace));
glUniform1f(g_MonoDiffuseProgram.lightAttenuationUnif, g_fLightAttenuation);
glUniform1f(g_MonoDiffuseProgram.shininessFactorUnif, g_fGaussianRoughness);
glUniform4fv(g_MonoDiffuseProgram.baseDiffuseColorUnif, 1,
g_bDrawDark ? glm::value_ptr(g_darkColor) : glm::value_ptr(g_lightColor));
glUseProgram(g_ColorDiffuseProgram.program);
glUniform4f(g_ColorDiffuseProgram.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f);
glUniform4f(g_ColorDiffuseProgram.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform3fv(g_ColorDiffuseProgram.cameraSpaceLightPosUnif, 1, glm::value_ptr(lightPosCameraSpace));
glUniform1f(g_ColorDiffuseProgram.lightAttenuationUnif, g_fLightAttenuation);
glUniform1f(g_ColorDiffuseProgram.shininessFactorUnif, g_fGaussianRoughness);
glUseProgram(0);
{
glutil::PushStack push(modelMatrix);
{
glutil::PushStack push(modelMatrix);
glm::mat3 normMatrix(modelMatrix.Top());
normMatrix = glm::transpose(glm::inverse(normMatrix));
glUseProgram(g_MonoDiffuseProgram.program);
glUniformMatrix4fv(g_MonoDiffuseProgram.modelViewUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniformMatrix3fv(g_MonoDiffuseProgram.modelViewForNormalUnif, 1, GL_FALSE,
glm::value_ptr(normMatrix));
g_pPlaneMesh->render();
glUseProgram(0);
}
{
glutil::PushStack push(modelMatrix);
modelMatrix.ApplyMatrix(g_objtPole.CalcMatrix());
if (g_bScaleCyl) {
modelMatrix.Scale(1.0f, 1.0f, 0.2f);
}
glm::mat3 normMatrix(modelMatrix.Top());
normMatrix = glm::transpose(glm::inverse(normMatrix));
ProgramData &prog = g_bDrawColoredCyl ? g_ColorDiffuseProgram : g_MonoDiffuseProgram;
glUseProgram(prog.program);
glUniformMatrix4fv(prog.modelViewUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniformMatrix3fv(prog.modelViewForNormalUnif, 1, GL_FALSE,
glm::value_ptr(normMatrix));
g_pCylinderMesh->render(g_bDrawColoredCyl ? "lit-color" : "lit");
glUseProgram(0);
}
if (g_bDrawLightSource)
{
glutil::PushStack push(modelMatrix);
modelMatrix.Translate(glm::vec3(worldLightPos));
modelMatrix.Scale(0.1f, 0.1f, 0.1f);
glUseProgram(g_UnlitProgram.program);
glUniformMatrix4fv(g_UnlitProgram.modelViewUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniform4f(g_UnlitProgram.objectColorUnif, 0.8078f, 0.8706f, 0.9922f, 1.0f);
g_pCubeMesh->render("flat");
}
}
return GLUS_TRUE;
}
