void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
4.0,
Degrees(time * 25),
Degrees(SineWave(time / 30.0) * 90)
)
);
model_matrix.Set(
ModelMatrixf::RotationA(
Vec3f(1.0f, 1.0f, 1.0f),
FullCircles(time * 0.5)
)
);
shape.Draw();
thread_ready.Signal();
parent_ready.Wait();
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
auto lightAzimuth = FullCircles(time * -0.5);
light_pos.Set(
Vec3f(
Cos(lightAzimuth),
1.0f,
Sin(lightAzimuth)
) * 2.0f
);
//
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
3.0f,
Degrees(-45),
Degrees(SineWave(time / 30.0) * 70)
)
);
// set the model matrix
model_matrix.Set(
ModelMatrixf::RotationY(FullCircles(time * 0.05))
);
cube.Bind();
gl.CullFace(Face::Back);
cube_instr.Draw(cube_indices);
}
void Render(const PangoCairoLayout& layout)
{
_bitmap.Set(GLint(layout.Use()));
_log_coords.Set(layout._log_coords);
_tex_coords.Set(layout._tex_coords);
_gl.DrawArrays(PrimitiveType::Points, 0, 1);
}
void SetLightAndCamera(const Vec3f& light, const Mat4f& camera)
{
// use the shading program
prog.Use();
// set the uniforms
light_pos.Set(light);
camera_matrix.Set(camera);
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer().StencilBuffer();
// make the camera matrix orbiting around the origin
// at radius of 3.5 with elevation between 15 and 90 degrees
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
5.0,
Degrees(time * 11),
Degrees(15 + (-SineWave(0.25+time/12.5)+1.0)*0.5*75)
)
);
ModelMatrixf identity;
// make the model transformation matrix
ModelMatrixf model =
ModelMatrixf::Translation(0.0f, 1.5f, 0.0) *
ModelMatrixf::RotationZ(Degrees(time * 43))*
ModelMatrixf::RotationY(Degrees(time * 63))*
ModelMatrixf::RotationX(Degrees(time * 79));
// make the reflection matrix
auto reflection = ModelMatrixf::Reflection(false, true, false);
//
gl.Disable(Capability::Blend);
gl.Disable(Capability::DepthTest);
gl.Enable(Capability::StencilTest);
gl.ColorMask(false, false, false, false);
gl.StencilFunc(CompareFunction::Always, 1, 1);
gl.StencilOp(StencilOp::Keep, StencilOp::Keep, StencilOp::Replace);
gl.Bind(plane);
model_matrix.Set(identity);
gl.DrawArrays(PrimitiveType::TriangleStrip, 0, 4);
gl.ColorMask(true, true, true, true);
gl.Enable(Capability::DepthTest);
gl.StencilFunc(CompareFunction::Equal, 1, 1);
gl.StencilOp(StencilOp::Keep, StencilOp::Keep, StencilOp::Keep);
// draw the cube using the reflection program
model_matrix.Set(reflection * model);
gl.Bind(cube);
cube_instr.Draw(cube_indices);
gl.Disable(Capability::StencilTest);
// draw the cube using the normal object program
model_matrix.Set(model);
cube_instr.Draw(cube_indices);
// blend-in the plane
gl.Enable(Capability::Blend);
gl.BlendEquation(BlendEquation::Max);
gl.Bind(plane);
model_matrix.Set(identity);
gl.DrawArrays(PrimitiveType::TriangleStrip, 0, 4);
}
void Reshape(GLuint width, GLuint height) {
gl.Viewport(width, height);
Mat4f projection =
CamMatrixf::PerspectiveX(Degrees(70), float(width) / height, 1, 30);
object_prog.Use();
object_projection_matrix.Set(projection);
shadow_prog.Use();
shadow_projection_matrix.Set(projection);
}
void Reshape(GLuint width, GLuint height)
{
gl.Viewport(width, height);
viewport_dimensions.Set(Vec2f(width, height));
projection_matrix.Set(
CamMatrixf::PerspectiveX(
Degrees(60),
double(width)/height,
1, 50
)
);
}
/*
=============
OpenGLProgram::SetUniform
Sets a uniform int value.
=============
*/
void OpenGLProgram::SetUniform( const char* name, const int* value, unsigned size ) {
Uniform* cachedUniform = GetCachedUniform( name );
if ( cachedUniform ) {
cachedUniform->Set( value );
} else {
//Not found
GLint location = glGetUniformLocation( m_programID, name );
if ( location > -1 ) {
Uniform* newUniform = new Uniform( location, name, size );
newUniform->Set( value );
m_uniforms[StringUtils::Hash( name )] = ( newUniform );
} else {
printf( "Could not find int uniform: %s\n", name );
}
}
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
// set the matrix for camera orbiting the origin
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
4.5f,
FullCircles(time / 10.0),
Degrees(45.0 + SineWave(time / 7.0)*30.0)
)
);
model_matrix.Set(ModelMatrixf::RotationX(FullCircles(time / 12.0)));
torus_instr.Draw(torus_indices);
}
void Render(
const Vec3f& light,
const Mat4f& camera,
const Mat4f& model
)
{
// use the shading program
prog.Use();
// set the uniforms
light_pos.Set(light);
camera_matrix.Set(camera);
model_matrix.Set(model);
// bind the VAO
shape.Bind();
// use the instructions to draw the shape
// (this basically calls glDrawArrays* or glDrawElements*)
shape_instr.Draw(shape_indices);
}
void Reshape(GLuint vp_width, GLuint vp_height)
{
width = vp_width;
height = vp_height;
tex_side = width < height ? width : height;
gl.Viewport(width, height);
Mat4f projection = CamMatrixf::PerspectiveX(
Degrees(48),
float(width)/height,
1, 15
);
plane_prog.Use();
plane_proj_matrix.Set(projection);
shape_prog.Use();
shape_proj_matrix.Set(projection);
}
void SetProjection(void)
{
projection_matrix.Set(
CamMatrixf::PerspectiveX(
Degrees(54),
double(width)/height,
1, 100
)
);
}
void Render(const Mat4f& model)
{
prog.Use();
model_matrix.Set(model);
// bind the VAO
sphere.Bind();
// use the instructions to draw the sphere
// (this basically calls glDrawArrays* or glDrawElements*)
sphere_instr.Draw(sphere_indices);
}
void Render(double time) {
gl.Clear().ColorBuffer().DepthBuffer();
auto camera = CamMatrixf::Orbiting(
Vec3f(),
2.9f,
FullCircles(time / 17.0),
Degrees(45 + SineWave(time / 20.0) * 40));
camera_matrix.Set(camera);
camera_position.Set(camera.Position());
auto langle = FullCircles(time / 31.0);
light_position.Set(
GLfloat(Cos(langle) * 20.0f),
GLfloat((1.2 + Sin(langle)) * 15.0f),
GLfloat(Sin(langle) * 20.0f));
shape.Draw();
}
void Reshape(GLuint width, GLuint height)
{
gl.Viewport(width, height);
projection_matrix.Set(
CamMatrixf::PerspectiveX(
Degrees(70),
double(width)/height,
1, 20
)
);
}
void Reshape(GLuint width, GLuint height)
{
gl.Viewport(width, height);
prog.Use();
projection_matrix.Set(
CamMatrixf::PerspectiveX(
Degrees(70),
width, height,
1, 50
)
);
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
3.0,
Degrees(time * 35),
Degrees(SineWave(time / 20.0) * 60)
)
);
model_matrix.Set(ModelMatrixf::RotationX(FullCircles(time * 0.25)));
assert(thread_ready);
thread_ready->Wait();
cube.Draw();
parent_ready.Signal();
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
auto camera = CamMatrixf::Orbiting(
Vec3f(),
15.0 - SineWave(time / 13)*8.0,
Degrees(time * 33),
Degrees(SineWave(time / 21.0) * 31)
);
camera_matrix.Set(camera);
const Vec3f offsets[4] = {
Vec3f( 2, 0, 0),
Vec3f(-2, 0, 0),
Vec3f( 0, 0, 2),
Vec3f( 0, 0,-2)
};
for(int i=0; i!=4; ++i)
{
auto model =
ModelMatrixf::RotationX(Degrees(time * 11))*
ModelMatrixf::Translation(offsets[i])*
ModelMatrixf::RotationZ(Degrees(time * (37+3*i)));
GLint level = GLint(17.0 / (Length((
Inverse(model)*
Vec4f(camera.Position(), 1)
).xyz())+0.1));
model_matrix.Set(model);
tess_level.Set(level);
shape_instr.Draw(shape_indices);
}
}
void Render(ExampleClock& clock) {
gl.Clear().ColorBuffer().DepthBuffer();
double time = clock.Now().Seconds();
auto langle = FullCircles(time / 23.0);
light_position.Set(
GLfloat(Cos(langle) * 20.0),
GLfloat((1.2 + Sin(langle)) * 15.0),
GLfloat(Sin(langle) * 20.0));
double x = SineWave(time / 13.0);
if(x + 0.93 < 0.0)
clock.Pace(0.2);
else
clock.Pace(1.0);
auto camera = CamMatrixf::Orbiting(
Vec3f(),
GLfloat(9.5 + x * 5.1),
FullCircles(time / 17.0),
Degrees(SineWave(time / 20.0) * 89));
camera_matrix.Set(camera);
camera_position.Set(camera.Position());
model_matrix.Set(
ModelMatrixf::TranslationX(+2.0f) *
ModelMatrixf::RotationX(FullCircles(time / 13.0)));
shape.Draw();
model_matrix.Set(
ModelMatrixf::TranslationX(-2.0f) *
ModelMatrixf::RotationZ(FullCircles(time / 11.0)));
shape.Draw();
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
// set the matrix for camera orbiting the origin
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
4.0 - SineWave(time / 6.0) * 2.0,
FullCircles(time * 0.4),
Degrees(SineWave(time / 30.0) * 90)
)
);
// set the model matrix
model_matrix.Set(
ModelMatrixf::RotationZ(FullCircles(time * 0.1))
);
gl.CullFace(Face::Front);
cube_instr.Draw(cube_indices);
gl.CullFace(Face::Back);
cube_instr.Draw(cube_indices);
}
void Use(void)
{
gl.ClearDepth(1.0f);
gl.ClearColor(0.9f, 0.4f, 0.4f, 1.0f);
gl.Enable(Capability::DepthTest);
gl.Enable(Capability::CullFace);
gl.CullFace(Face::Back);
fbo.Bind(Framebuffer::Target::Draw);
gl.Viewport(tex_side, tex_side);
prog.Use();
shape.Use();
projection_matrix.Set(CamMatrixf::PerspectiveX(Degrees(48), 1.0, 1, 100));
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
// set the matrix for camera orbiting the origin
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
18.5,
Degrees(time * 135),
Degrees(SineWave(time / 20.0) * 30)
)
);
// draw 36 instances of the cube
// the vertex shader will take care of their placement
cube_instr.Draw(cube_indices, 36);
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
auto camera = CamMatrixf::Orbiting(
Vec3f(),
5.5,
FullCircles(time / 10.0),
Degrees(45.0 + SineWave(time / 7.0)*30.0)
);
// Render the plane
plane_prog.Use();
plane_camera_matrix.Set(camera);
plane_model_matrix.Set(
ModelMatrixf::Translation(0.0f, -1.1f, 0.0f)
);
gl.Bind(plane);
plane_instr.Draw(plane_indices);
// Render the shape
shape_prog.Use();
auto clip_plane = Planef::FromNormal(Vec3f(Data(camera.Row(2)), 3));
shape_clip_plane.Set(clip_plane.Equation());
shape_camera_matrix.Set(camera);
shape_model_matrix.Set(
ModelMatrixf::RotationX(FullCircles(time / 12.0))
);
gl.Bind(shape);
gl.Enable(Capability::CullFace);
gl.Enable(Functionality::ClipDistance, 0);
gl.FrontFace(make_shape.FaceWinding());
GLfloat clip_dirs[2] = {-1.0f, 1.0f};
Face facing_dirs[2] = {Face::Front, Face::Back};
for(int c=0; c!=2; ++c)
{
shape_clip_direction.Set(clip_dirs[c]);
for(int f=0; f!=2; ++f)
{
Texture::CopyImage2D(
Texture::Target::_2D,
0,
PixelDataInternalFormat::RGB,
tex_side == width ? 0 : (width - tex_side) / 2,
tex_side == height? 0 : (height- tex_side) / 2,
tex_side, tex_side,
0
);
gl.CullFace(facing_dirs[f]);
shape_instr.Draw(shape_indices);
}
}
gl.Disable(Functionality::ClipDistance, 0);
gl.Disable(Capability::CullFace);
}
void Render(double time) {
gl.Clear().ColorBuffer().DepthBuffer().StencilBuffer();
auto camera = CamMatrixf::Orbiting(
Vec3f(),
9.0,
FullCircles(time * 0.1),
Degrees(15 + (-SineWave(0.25 + time / 12.5) + 1.0) * 0.5 * 75));
ModelMatrixf identity;
ModelMatrixf model =
ModelMatrixf::Translation(0.0f, 2.5f, 0.0) *
ModelMatrixf::RotationA(
Vec3f(1.0f, 1.0f, 1.0f), FullCircles(time * 0.2));
gl.CullFace(Face::Back);
gl.ColorMask(true, true, true, true);
gl.DepthMask(true);
gl.Disable(Capability::StencilTest);
object_prog.Use();
object_camera_matrix.Set(camera);
object_light_mult.Set(0.2f);
object_model_matrix.Set(identity);
plane.Bind();
gl.DrawArrays(PrimitiveType::TriangleStrip, 0, 4);
object_model_matrix.Set(model);
torus.Bind();
torus_instr.Draw(torus_indices);
gl.ColorMask(false, false, false, false);
gl.DepthMask(false);
gl.Enable(Capability::StencilTest);
gl.StencilFunc(CompareFunction::Always, 0);
gl.StencilOpSeparate(
Face::Front, StencilOp::Keep, StencilOp::Keep, StencilOp::Incr);
gl.StencilOpSeparate(
Face::Back, StencilOp::Keep, StencilOp::Keep, StencilOp::Decr);
shadow_prog.Use();
shadow_camera_matrix.Set(camera);
shadow_model_matrix.Set(model);
gl.CullFace(Face::Back);
torus_instr.Draw(torus_indices);
gl.CullFace(Face::Front);
torus_instr.Draw(torus_indices);
gl.CullFace(Face::Back);
gl.ColorMask(true, true, true, true);
gl.DepthMask(true);
gl.Clear().DepthBuffer();
gl.StencilFunc(CompareFunction::Equal, 0);
gl.StencilOp(StencilOp::Keep, StencilOp::Keep, StencilOp::Keep);
object_prog.Use();
object_light_mult.Set(2.5);
object_model_matrix.Set(identity);
object_color.Set(0.8f, 0.7f, 0.4f);
plane.Bind();
gl.DrawArrays(PrimitiveType::TriangleStrip, 0, 4);
object_model_matrix.Set(model);
object_color.Set(0.9f, 0.8f, 0.1f);
torus.Bind();
torus_instr.Draw(torus_indices);
}
void SetProjection(const Mat4f& projection)
{
prog.Use();
projection_matrix.Set(projection);
}
