void Fbo::blitTo( Fbo dst, const Area &srcArea, const Area &dstArea, GLenum filter, GLbitfield mask ) const
{
ScopedFramebuffer readScp( GL_READ_FRAMEBUFFER, mId );
ScopedFramebuffer drawScp( GL_DRAW_FRAMEBUFFER, dst.getId() );
glBlitFramebuffer( srcArea.getX1(), srcArea.getY1(), srcArea.getX2(), srcArea.getY2(), dstArea.getX1(), dstArea.getY1(), dstArea.getX2(), dstArea.getY2(), mask, filter );
}
void Fbo::blitTo( Fbo dst, const Area &srcArea, const Area &dstArea, GLenum filter, GLbitfield mask ) const
{
SaveFramebufferBinding saveFboBinding;
glBindFramebufferEXT( GL_READ_FRAMEBUFFER_EXT, mObj->mId );
glBindFramebufferEXT( GL_DRAW_FRAMEBUFFER_EXT, dst.getId() );
glBlitFramebufferEXT( srcArea.getX1(), srcArea.getY1(), srcArea.getX2(), srcArea.getY2(), dstArea.getX1(), dstArea.getY1(), dstArea.getX2(), dstArea.getY2(), mask, filter );
}
int main(int argc, char **argv)
{
Config cfg = readConfig(); // Misc.cpp
Scene_SDL* CurrentScene = new Scene_SDL(cfg.ResolutionX,cfg.ResolutionY);
vec2 resolution = vec2(cfg.ResolutionX, cfg.ResolutionY);
Vao vaoA = Vao("Mesh/thing.obj");
vaoA.load(vec4(0,0,0,0));
Vao vaoB = Vao("Mesh/plane.obj");
vaoB.load(vec4(0, 0, 0, 0));
TextureCfg texCfgA = { GL_RGB8, GL_NEAREST, GL_REPEAT };
Texture texA = Texture("Texture/checker.png", texCfgA);
texA.load();
Shader shaderForward = Shader("Shader/test.vert", "Shader/test.frag");
shaderForward.load();
Shader shaderGeometry = Shader("Shader/defPass1.vert", "Shader/defPass1.frag");
shaderGeometry.load();
Shader shaderDeferred = Shader("Shader/defPassN.vert", "Shader/defPassN.frag");
shaderDeferred.load();
Shader shaderDeferredDebug = Shader("Shader/defPassN.vert", "Shader/defPassNDebug.frag");
shaderDeferredDebug.load();
Shader* shaderSelected = &shaderDeferred;
Shader shaderAO = Shader("Shader/defPassN.vert", "Shader/AO.frag");
shaderAO.load();
Fbo* fboGeometry = createFboGeometry(cfg); // Misc.cpp
Fbo* fboAO = createFbo_1ch(cfg);
Vao2D supportFbo = Vao2D();
supportFbo.load();
glm::mat4 projection;
glm::mat4 modelview;
glm::mat4 view;
projection = glm::perspective(70.0*M_PI/180.0, (double)cfg.ResolutionX / (double)cfg.ResolutionY, 0.01, 100.0);
view = glm::lookAt(glm::vec3(2,2,2), glm::vec3(0, 0, 0.5), glm::vec3(0, 0, 1));
GLuint mAttach[3] = { GL_COLOR_ATTACHMENT0 , GL_COLOR_ATTACHMENT1 ,GL_COLOR_ATTACHMENT2 };
Input input;
int frame = 0;
while (!input.end()) {
frame++;
input.update();
if (input.getRisingKey(SDL_SCANCODE_SPACE)) {
shaderSelected = (shaderSelected == &shaderDeferredDebug) ? &shaderDeferred : &shaderDeferredDebug;
}
glViewport(0, 0, cfg.ResolutionX, cfg.ResolutionY);
glBindFramebuffer(GL_FRAMEBUFFER, fboGeometry->getId());
glDrawBuffers(3, mAttach);
glDisable(GL_BLEND);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(shaderGeometry.getProgramID());
glUniformMatrix4fv(glGetUniformLocation(shaderGeometry.getProgramID(), "projection"), 1, GL_FALSE, value_ptr(projection));
glUniform2fv(glGetUniformLocation(shaderGeometry.getProgramID(), "resolution"), 1, value_ptr(resolution));
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texA.getId());
glUniform1i(glGetUniformLocation(shaderGeometry.getProgramID(), "texture_diffuse"), 0);
modelview = rotate(view, (input.getX() - cfg.ResolutionX) / 200.0f, vec3(0.0f, 0.0f, 1.0f));
modelview = translate(modelview, vec3(0, 0, 0.8));
glUniformMatrix4fv(glGetUniformLocation(shaderGeometry.getProgramID(), "modelview"), 1, GL_FALSE, value_ptr(modelview));
glUniformMatrix3fv(glGetUniformLocation(shaderGeometry.getProgramID(), "normal"), 1, GL_FALSE, value_ptr(transpose(inverse(glm::mat3(modelview)))));
vaoA.draw();
modelview = view;
glUniformMatrix4fv(glGetUniformLocation(shaderGeometry.getProgramID(), "modelview"), 1, GL_FALSE, value_ptr(modelview));
glUniformMatrix3fv(glGetUniformLocation(shaderGeometry.getProgramID(), "normal"), 1, GL_FALSE, value_ptr(transpose(inverse(glm::mat3(modelview)))));
vaoB.draw();
glBindTexture(GL_TEXTURE_2D, 0);
glUseProgram(0);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glEnable(GL_BLEND);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(shaderSelected->getProgramID());
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fboGeometry->getColorBufferId(0));
glUniform1i(glGetUniformLocation(shaderSelected->getProgramID(), "gNormal"), 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, fboGeometry->getColorBufferId(1));
glUniform1i(glGetUniformLocation(shaderSelected->getProgramID(), "gDiffuse"), 1);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, fboGeometry->getColorBufferId(2));
glUniform1i(glGetUniformLocation(shaderSelected->getProgramID(), "gPosition"), 2);
glUniformMatrix4fv(glGetUniformLocation(shaderSelected->getProgramID(), "projection"), 1, GL_FALSE, value_ptr(projection));
glUniform1f(glGetUniformLocation(shaderSelected->getProgramID(), "varA"), input.getY() / resolution.y);
glUniform1i(glGetUniformLocation(shaderSelected->getProgramID(), "time"), frame);
glUniform2fv(glGetUniformLocation(shaderSelected->getProgramID(), "resolution"), 1, value_ptr(resolution));
supportFbo.draw();
CurrentScene->flip();
}
delete CurrentScene;
return 0;
}