FBTexThread(FBTexExample& example)
: gl()
, prog(make_prog(example))
, projection_matrix(prog, "ProjectionMatrix")
, camera_matrix(prog, "CameraMatrix")
, model_matrix(prog, "ModelMatrix")
, shape(List("Position")("Normal")("TexCoord").Get(), shapes::TwistedTorus(), prog)
, tex_side(512)
, parent_ready(example.parent_ready)
{
example.thread_ready = &thread_ready;
Uniform<Vec3f>(prog, "LightPos").Set(20.0f, 30.0f, 40.0f);
Texture::Active(0);
{
auto bound_tex = Bind(example.tex, Texture::Target::_2D);
bound_tex.Image2D(
0,
PixelDataInternalFormat::RGBA,
tex_side, tex_side,
0,
PixelDataFormat::RGBA,
PixelDataType::UnsignedByte,
nullptr
);
bound_tex.MinFilter(TextureMinFilter::Linear);
bound_tex.MagFilter(TextureMagFilter::Linear);
bound_tex.WrapS(TextureWrap::Repeat);
bound_tex.WrapT(TextureWrap::Repeat);
}
{
auto bound_fbo = Bind(fbo, Framebuffer::Target::Draw);
auto bound_rbo = Bind(rbo, Renderbuffer::Target::Renderbuffer);
bound_rbo.Storage(
PixelDataInternalFormat::DepthComponent,
tex_side,
tex_side
);
bound_fbo.AttachTexture(FramebufferAttachment::Color, example.tex, 0);
bound_fbo.AttachRenderbuffer(FramebufferAttachment::Depth, rbo);
}
Use();
}
FBTexExample(void)
: make_cube()
, cube_instr(make_cube.Instructions())
, cube_indices(make_cube.Indices())
, make_torus(1.0, 0.5, 72, 48)
, torus_instr(make_torus.Instructions())
, torus_indices(make_torus.Indices())
, cube_fs(ObjectDesc("Cube fragment"))
, torus_fs(ObjectDesc("Torus fragment"))
, torus_projection_matrix(torus_prog, "ProjectionMatrix")
, torus_camera_matrix(torus_prog, "CameraMatrix")
, torus_model_matrix(torus_prog, "ModelMatrix")
, cube_projection_matrix(cube_prog, "ProjectionMatrix")
, cube_camera_matrix(cube_prog, "CameraMatrix")
, cube_model_matrix(cube_prog, "ModelMatrix")
, tex_side(512)
, width(tex_side)
, height(tex_side)
{
vs.Source(
"#version 330\n"
"uniform mat4 ProjectionMatrix, CameraMatrix, ModelMatrix;"
"in vec4 Position;"
"in vec3 Normal;"
"in vec2 TexCoord;"
"out vec3 vertNormal;"
"out vec3 vertLight;"
"out vec2 vertTexCoord;"
"uniform vec3 LightPos;"
"void main(void)"
"{"
" vertNormal = mat3(ModelMatrix)*Normal;"
" gl_Position = ModelMatrix * Position;"
" vertLight = LightPos-gl_Position.xyz;"
" vertTexCoord = TexCoord;"
" gl_Position = ProjectionMatrix * CameraMatrix * gl_Position;"
"}"
);
vs.Compile();
cube_fs.Source(
"#version 330\n"
"uniform sampler2D TexUnit;"
"in vec3 vertNormal;"
"in vec3 vertLight;"
"in vec2 vertTexCoord;"
"out vec4 fragColor;"
"void main(void)"
"{"
" float l = sqrt(length(vertLight));"
" float d = l > 0? dot(vertNormal, normalize(vertLight)) / l : 0.0;"
" float i = 0.6 + max(d, 0.0);"
" fragColor = texture(TexUnit, vertTexCoord)*i;"
"}"
);
cube_fs.Compile();
cube_prog.AttachShader(vs);
cube_prog.AttachShader(cube_fs);
cube_prog.Link();
cube_prog.Use();
cube.Bind();
cube_verts.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_cube.Positions(data);
Buffer::Data(Buffer::Target::Array, data);
VertexAttribArray attr(cube_prog, "Position");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
cube_normals.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_cube.Normals(data);
Buffer::Data(Buffer::Target::Array, data);
VertexAttribArray attr(cube_prog, "Normal");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
cube_texcoords.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_cube.TexCoordinates(data);
Buffer::Data(Buffer::Target::Array, data);
VertexAttribArray attr(cube_prog, "TexCoord");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
UniformSampler(cube_prog, "TexUnit").Set(0);
Uniform<Vec3f>(cube_prog, "LightPos").Set(4.0f, 4.0f, -8.0f);
torus_fs.Source(
"#version 330\n"
"in vec3 vertNormal;"
"in vec3 vertLight;"
"in vec2 vertTexCoord;"
"out vec4 fragColor;"
"void main(void)"
"{"
" float d = dot("
" vertNormal, "
" normalize(vertLight)"
" );"
" float i = ("
" int(vertTexCoord.x*18) % 2+"
" int(vertTexCoord.y*14) % 2"
" ) % 2;"
" float c = (0.4 + max(d, 0.0))*(1-i/2);"
" fragColor = vec4(c, c, c, 1.0);"
"}"
);
torus_fs.Compile();
torus_prog.AttachShader(vs);
torus_prog.AttachShader(torus_fs);
torus_prog.Link();
torus_prog.Use();
torus.Bind();
torus_verts.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_torus.Positions(data);
Buffer::Data(Buffer::Target::Array, data);
VertexAttribArray attr(torus_prog, "Position");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
torus_normals.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_torus.Normals(data);
Buffer::Data(Buffer::Target::Array, data);
VertexAttribArray attr(torus_prog, "Normal");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
torus_texcoords.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_torus.TexCoordinates(data);
Buffer::Data(Buffer::Target::Array, data);
VertexAttribArray attr(torus_prog, "TexCoord");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
Uniform<Vec3f>(torus_prog, "LightPos").Set(2.0f, 3.0f, 4.0f);
{
auto bound_tex = Bind(tex, Texture::Target::_2D);
bound_tex.Image2D(
0,
PixelDataInternalFormat::RGBA,
tex_side, tex_side,
0,
PixelDataFormat::RGBA,
PixelDataType::UnsignedByte,
nullptr
);
bound_tex.MinFilter(TextureMinFilter::Linear);
bound_tex.MagFilter(TextureMagFilter::Linear);
bound_tex.WrapS(TextureWrap::Repeat);
bound_tex.WrapT(TextureWrap::Repeat);
}
{
auto bound_fbo = Bind(
fbo,
Framebuffer::Target::Draw
);
auto bound_rbo = Bind(
rbo,
Renderbuffer::Target::Renderbuffer
);
bound_rbo.Storage(
PixelDataInternalFormat::DepthComponent,
tex_side,
tex_side
);
bound_fbo.AttachTexture(
FramebufferAttachment::Color,
tex,
0
);
bound_fbo.AttachRenderbuffer(
FramebufferAttachment::Depth,
rbo
);
}
gl.Enable(Capability::DepthTest);
gl.Enable(Capability::CullFace);
gl.CullFace(Face::Back);
}
