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Only rendering sun shadows when the sun is actually shining.

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Faerbit 2015-03-08 10:36:45 +01:00
parent 93f87cc9c5
commit 185371d78c
1 changed files with 17 additions and 14 deletions
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31
graphics.cc
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@ -253,26 +253,29 @@ void Graphics::render(double time)
glViewport(0, 0, windowSize.x, windowSize.y); glViewport(0, 0, windowSize.x, windowSize.y);
std::vector<glm::mat4> depthViewProjectionMatrices = std::vector<glm::mat4>(framebuffer_directional.size()); std::vector<glm::mat4> depthViewProjectionMatrices = std::vector<glm::mat4>(framebuffer_directional.size());
float sunAngle = glm::dot(glm::vec3(0.0f, 1.0f, 0.0f), glm::normalize(level->getDirectionalLight()->getPosition()));
glm::vec3 sunVector = (level->getCameraCenter()->getPosition() + level->getDirectionalLight()->getPosition()); glm::vec3 sunVector = (level->getCameraCenter()->getPosition() + level->getDirectionalLight()->getPosition());
for (unsigned int i = 0; i<framebuffer_directional.size(); i++) { for (unsigned int i = 0; i<framebuffer_directional.size(); i++) {
framebuffer_directional.at(i)->bind(); framebuffer_directional.at(i)->bind();
glClear(GL_DEPTH_BUFFER_BIT); glClear(GL_DEPTH_BUFFER_BIT);
float projection_size = 0.0f; if (sunAngle > 0.0f) {
switch(i) { float projection_size = 0.0f;
case 0: switch(i) {
projection_size = 10.0f; case 0:
break; projection_size = 10.0f;
case 1: break;
projection_size = 30.0f; case 1:
break; projection_size = 30.0f;
case 2: break;
projection_size = farPlane/1.5f; case 2:
break; projection_size = farPlane/1.5f;
break;
}
depthViewProjectionMatrices.at(i) = glm::ortho<float>(-projection_size, projection_size, -projection_size, projection_size, -farPlane/1.5f, farPlane/1.5f) *
glm::lookAt(sunVector, level->getCameraCenter()->getPosition(), glm::vec3(0,1,0));
level->render(depthShader, false, &depthViewProjectionMatrices.at(i));
} }
depthViewProjectionMatrices.at(i) = glm::ortho<float>(-projection_size, projection_size, -projection_size, projection_size, -farPlane/1.5f, farPlane/1.5f) *
glm::lookAt(sunVector, level->getCameraCenter()->getPosition(), glm::vec3(0,1,0));
level->render(depthShader, false, &depthViewProjectionMatrices.at(i));
if (!framebuffer_directional.at(i)->isFrameBufferObjectComplete()) { if (!framebuffer_directional.at(i)->isFrameBufferObjectComplete()) {
printf("Framebuffer incomplete, unknown error occured during shadow generation!\n"); printf("Framebuffer incomplete, unknown error occured during shadow generation!\n");
} }