コード例 #1
0
ファイル: WaterShader.cpp プロジェクト: ptitSeb/caveexpress
bool WaterShader::use (int x, int y, int w, int h)
{
	if (!_initialized)
		return false;

	if (!activate())
		return false;

	float angle = _time * M_PI_2;
	if (angle > M_PI_2)
		angle -= M_PI_2;

	_displacement->bindTexture(0);
	_water->bindTexture(1);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	GL_checkError();
	glEnable(GL_BLEND);
	GL_checkError();
	setUniformMatrix("u_worldView", _modelViewMatrix);
	setUniformi("u_texture", 0);
	setUniformi("u_texture2", 1);
	setUniformf("timedelta", -angle);

	createAndBindAttributesArray(x, y, w, h);
	GL_checkError();

	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
	GL_checkError();

	deactivate();

	return true;
}
コード例 #2
0
void BasicShader::UpdateUniforms(const Transform& transform, const Material& material, RenderingEngine* renderingEngine)
{
	static Texture WHITE = Texture(1, 1, whitePixel);

	if (material.texture != NULL)
		material.texture->bind();
	else
		WHITE.bind();

	glm::mat4 worldMatrix = transform.getTransform();
	glm::mat4 projectedMatrix = renderingEngine->GetMainCamera().GetViewProjection() * worldMatrix;

	setUniform("transform", projectedMatrix);
	setUniform("color", material.color);
	setUniformi("time", (int)SDL_GetTicks());
}
コード例 #3
0
ファイル: main.cpp プロジェクト: JAGJ10/Hikari
int main() {
	//Checks for memory leaks in debug mode
	_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);

	glfwInit();
	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 4);
	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
	glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

	GLFWwindow* window = glfwCreateWindow(width, height, "Hikari", nullptr, nullptr);
	glfwMakeContextCurrent(window);

	//Set callbacks for keyboard and mouse
	glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);

	glewExperimental = GL_TRUE;
	glewInit();
	glGetError();

	//Define the viewport dimensions
	glViewport(0, 0, width, height);

	//Initialize cuda->opengl context
	cudaCheck(cudaGLSetGLDevice(0));
	cudaGraphicsResource *resource;

	//Create a texture to store ray tracing result
	GLuint tex;
	glActiveTexture(GL_TEXTURE0);
	glGenTextures(1, &tex);
	glBindTexture(GL_TEXTURE_2D, tex);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);

	cudaCheck(cudaGraphicsGLRegisterImage(&resource, tex, GL_TEXTURE_2D, cudaGraphicsMapFlagsWriteDiscard));
	glBindTexture(GL_TEXTURE_2D, 0);

	Shader final = Shader("fsQuad.vert", "fsQuad.frag");
	FullscreenQuad fsQuad = FullscreenQuad();

	float4* buffer;
	cudaCheck(cudaMalloc((void**)&buffer, width * height * sizeof(float4)));
	cudaCheck(cudaMemset(buffer, 0, width * height * sizeof(float4)));

	//Mesh
	float3 offset = make_float3(0);
	float3 scale = make_float3(15);
	Mesh cBox("objs/Avent", 0, scale, offset);
	offset = make_float3(0, 55, 0);
	scale = make_float3(100);
	Mesh light("objs/plane", (int)cBox.triangles.size(), scale, offset);
	cBox.triangles.insert(cBox.triangles.end(), light.triangles.begin(), light.triangles.end());
	cBox.aabbs.insert(cBox.aabbs.end(), light.aabbs.begin(), light.aabbs.end());
	std::cout << "Num triangles: " << cBox.triangles.size() << std::endl;
	cBox.root = AABB(fminf(cBox.root.minBounds, light.root.minBounds), fmaxf(cBox.root.maxBounds, light.root.maxBounds));
	BVH bvh(cBox.aabbs, cBox.triangles, cBox.root);

	Camera cam(make_float3(14, 15, 80), make_int2(width, height), 45.0f, 0.04f, 80.0f);
	Camera* dCam;

	cudaCheck(cudaMalloc((void**)&dCam, sizeof(Camera)));
	cudaCheck(cudaMemcpy(dCam, &cam, sizeof(Camera), cudaMemcpyHostToDevice));

	cudaCheck(cudaGraphicsMapResources(1, &resource, 0));
	cudaArray* pixels;
	cudaCheck(cudaGraphicsSubResourceGetMappedArray(&pixels, resource, 0, 0));
	cudaResourceDesc viewCudaArrayResourceDesc;
	viewCudaArrayResourceDesc.resType = cudaResourceTypeArray;
	viewCudaArrayResourceDesc.res.array.array = pixels;
	cudaSurfaceObject_t viewCudaSurfaceObject;
	cudaCheck(cudaCreateSurfaceObject(&viewCudaSurfaceObject, &viewCudaArrayResourceDesc));
	cudaCheck(cudaGraphicsUnmapResources(1, &resource, 0));

	while (!glfwWindowShouldClose(window)) {
		float currentFrame = float(glfwGetTime());
		deltaTime = currentFrame - lastFrame;
		lastFrame = currentFrame;

		//Check and call events
		glfwPollEvents();
		handleInput(window, cam);

		if (cam.moved) {
			frameNumber = 0;
			cudaCheck(cudaMemset(buffer, 0, width * height * sizeof(float4)));
		}

		cam.rebuildCamera();
		cudaCheck(cudaMemcpy(dCam, &cam, sizeof(Camera), cudaMemcpyHostToDevice));

		frameNumber++;
				
		if (frameNumber < 20000) {
			cudaCheck(cudaGraphicsMapResources(1, &resource, 0));
			std::chrono::time_point<std::chrono::system_clock> start, end;
			start = std::chrono::system_clock::now();
			render(cam, dCam, viewCudaSurfaceObject, buffer, bvh.dTriangles, bvh.dNodes, frameNumber, cam.moved);
			end = std::chrono::system_clock::now();
			std::chrono::duration<double> elapsed = end - start;
			std::cout << "Frame: " << frameNumber << " --- Elapsed time: " << elapsed.count() << "s\n";
			cudaCheck(cudaGraphicsUnmapResources(1, &resource, 0));
		}

		cam.moved = false;

		glUseProgram(final.program);
		glActiveTexture(GL_TEXTURE0);
		glBindTexture(GL_TEXTURE_2D, tex);

		glClear(GL_COLOR_BUFFER_BIT);
		
		final.setUniformi("tRender", 0);
		fsQuad.render();

		//std::cout << glGetError() << std::endl;

		//Swap the buffers
		glfwSwapBuffers(window);
		glfwSetCursorPos(window, lastX, lastY);
	}