thirdparty/scummvm
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Start of attempt to abstract OpenGL from Residual

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This commit is contained in:
James Brown 2004-01-23 11:10:59 +00:00
parent 8f2f5cd2a3
commit 508d66a1e5
12 changed files with 316 additions and 230 deletions
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24
scene.cpp
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@ -24,9 +24,9 @@
#include "colormap.h"
#include "vector3d.h"
#include <SDL.h>
#include <SDL_opengl.h>
#include <cmath>
#include "screen.h"
#include "driver_gl.h"
Scene::Scene(const char *name, const char *buf, int len) :
name_(name) {
@ -144,26 +144,8 @@ void Scene::Light::load(TextSplitter &ts) {
}
void Scene::Setup::setupCamera() const {
// Set perspective transformation
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// gluPerspective(std::atan(std::tan(fov_ / 2 * (M_PI/180)) * 0.75) * 2 * (180/M_PI), 4.0f / 3, nclip_, fclip_);
float right = nclip_ * std::tan(fov_ / 2 * (M_PI/180));
glFrustum(-right, right, -right * 0.75, right * 0.75, nclip_, fclip_);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Apply camera roll
glRotatef(roll_, 0, 0, -1);
// Set camera position and direction
Vector3d up_vec(0, 0, 1);
if (pos_.x() == interest_.x() && pos_.y() == interest_.y())
up_vec = Vector3d(0, 1, 0);
gluLookAt(pos_.x(), pos_.y(), pos_.z(),
interest_.x(), interest_.y(), interest_.z(),
up_vec.x(), up_vec.y(), up_vec.z());
g_driver->setupCamera(fov_, nclip_, fclip_);
g_driver->positionCamera(roll_, pos_, interest_);
}
void Scene::setSetup(int num)