static void InitializeHeights(ID3D11DeviceContext* pContext)
{
ID3DX11EffectVectorVariable* deformMinVar = g_pDeformEffect->GetVariableByName("g_DeformMin")->AsVector();
ID3DX11EffectVectorVariable* deformMaxVar = g_pDeformEffect->GetVariableByName("g_DeformMax")->AsVector();
// This viewport is the wrong size for the texture. But I've tweaked the noise frequencies etc to match.
// So keep it like this for now. TBD: tidy up.
static const D3D11_VIEWPORT vp1 = { 0,0, (float) COARSE_HEIGHT_MAP_SIZE, (float) COARSE_HEIGHT_MAP_SIZE, 0.0f, 1.0f };
pContext->RSSetViewports(1, &vp1);
pContext->IASetInputLayout(NULL);
pContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
pContext->OMSetRenderTargets(1, &g_pHeightMapRTV, NULL);
FullScreenPass(pContext, deformMinVar, deformMaxVar, g_pInitializationTechnique);
static const D3D11_VIEWPORT vp2 = { 0,0, (float) COARSE_HEIGHT_MAP_SIZE, (float) COARSE_HEIGHT_MAP_SIZE, 0.0f, 1.0f };
pContext->RSSetViewports(1, &vp2);
g_InputTexVar->SetResource(g_pHeightMapSRV);
pContext->OMSetRenderTargets(1, &g_pGradientMapRTV, NULL);
FullScreenPass(pContext, deformMinVar, deformMaxVar, g_pGradientTechnique);
ID3D11RenderTargetView* pNULLRT = {NULL};
pContext->OMSetRenderTargets(1, &(pNULLRT), NULL);
}
int main(int argc, char *argv[])
{
glfwSetErrorCallback(err);
if (!glfwInit()) {
exit(1);
}
/* create the window and its associated OpenGL context */
wd = glfwCreateWindow(width, height, "Whoot 2",
NULL, NULL);
if (!wd) {
glfwTerminate();
exit(1);
}
/* make the window's context the current context */
glfwMakeContextCurrent(wd);
GLenum err = glewInit();
if (GLEW_OK != err)
{
std::cout << "glewInit failed!" << std::endl;
std::cout << glewGetErrorString(err) << std::endl;
}
glfwGetFramebufferSize(wd, &fbwidth, &fbheight);
/* shape view port */
fbreshape(wd, fbwidth, fbheight);
/* --- register callbacks with GLFW --- */
/* register function to handle window resizes */
glfwSetFramebufferSizeCallback(wd, fbreshape);
glfwSetWindowSizeCallback(wd, reshape);
/* register function to handle window close */
glfwSetWindowCloseCallback(wd, quit);
/* register function to handle keyboard input */
glfwSetKeyCallback(wd, kbd); // general keyboard input
glfwSetCharCallback(wd, charhd); // simpler specific character handling
initgl();
FullScreenPass myFSP = FullScreenPass();
ParticlePass myPP = ParticlePass(10000);
typedef std::chrono::high_resolution_clock Clock;
typedef std::chrono::milliseconds milliseconds;
Clock::time_point currentTime, newTime;
milliseconds frameTime;
do {
currentTime = Clock::now();
/* color buffer must be cleared each time */
glClear(GL_COLOR_BUFFER_BIT);
myFSP.draw();
myPP.draw();
/* GLFW is ALWAYS double buffered; will call glFlush() */
glfwSwapBuffers(wd);
glfwPollEvents();
newTime = Clock::now();
frameTime = std::chrono::duration_cast<milliseconds>(newTime - currentTime);
if(frameTime.count() < 16)
{
std::this_thread::sleep_for(milliseconds(16 - frameTime.count()));
}
} while (!glfwWindowShouldClose(wd));
exit(0);
}
