void Reshape(GLuint vp_width, GLuint vp_height) {
width = vp_width;
height = vp_height;
float aspect = float(width) / height;
auto projection = CamMatrixf::PerspectiveX(Degrees(60), aspect, 1, 20);
plane_projection_matrix.Set(projection);
shape_projection_matrix.Set(projection);
gl.Bound(Texture::Target::Rectangle, depth_tex)
.Image2D(
0,
PixelDataInternalFormat::DepthComponent,
width / tex_size_div,
height / tex_size_div,
0,
PixelDataFormat::DepthComponent,
PixelDataType::Float,
nullptr);
gl.Bound(Texture::Target::Rectangle, reflect_tex)
.Image2D(
0,
PixelDataInternalFormat::RGB,
width / tex_size_div,
height / tex_size_div,
0,
PixelDataFormat::RGB,
PixelDataType::UnsignedByte,
nullptr);
}
void Render(double time)
{
gl.Clear().ColorBuffer().DepthBuffer();
//
auto camera = CamMatrixf::Orbiting(
Vec3f(),
4.5,
Degrees(time * 35),
Degrees(SineWave(time / 30.0) * 60)
);
auto model =
ModelMatrixf::RotationY(FullCircles(time * 0.25)) *
ModelMatrixf::RotationX(FullCircles(time * 0.33));
camera_matrix.Set(camera);
model_matrix.Set(model);
transf_time.Set(time);
face_pp.Bind();
gl.PolygonMode(PolygonMode::Fill);
torus_instr.Draw(torus_indices);
frame_pp.Bind();
gl.PolygonMode(PolygonMode::Line);
torus_instr.Draw(torus_indices);
}
double Draw(double time)
{
assert(!shapes.empty());
assert(ishape != shapes.end());
shapes::ShapeWrapper& shape = *ishape;
const double interval = 11.0;
double segment = time - shape_time;
double fade = segment*(interval-segment);
fade -= 1.0;
if(fade < 0.0) fade = 0.0;
fade = std::sqrt(fade/interval);
if(fade > 1.0) fade = 1.0;
if(segment > interval)
{
if(++ishape == shapes.end())
{
ishape = shapes.begin();
}
shape_time = time;
}
gl.Clear().DepthBuffer();
float dist = (1.0+SineWave(time / 13.0))*2.5;
projection_matrix.Set(
CamMatrixf::PerspectiveX(
Degrees(45),
1.0,
1.0+dist,
shape.BoundingSphere().Radius()*2.0+1.0+dist
)
);
camera_matrix.Set(
CamMatrixf::Orbiting(
Vec3f(),
shape.BoundingSphere().Radius()+1.5+dist,
FullCircles(time / 27.0),
Degrees(SineWave(time / 23.0) * 89)
)
);
model_matrix.Set(
ModelMatrixf::RotationA(
Vec3f(1,1,1),
FullCircles(time /-37.0)
)
);
prog.Use();
shape.Use();
shape.Draw();
return fade;
}
void _use_font(const BitmapFontEssence& essence)
{
if(_prev_font_essence != static_cast<const void*>(&essence))
{
essence.Use();
_bitmap_sampler.Set(GLint(essence.BitmapTexUnit()));
_metric_sampler.Set(GLint(essence.MetricTexUnit()));
_pg_map_sampler.Set(GLint(essence.PageMapTexUnit()));
_prev_font_essence = &essence;
}
}
void Reshape(GLuint width, GLuint height)
{
gl.Viewport(width, height);
Mat4f projection = CamMatrixf::PerspectiveX(
Degrees(65),
double(width)/height,
1, 40
);
norm_projection_matrix.Set(projection);
refl_projection_matrix.Set(projection);
}
void SRPWindows::DrawWindow()
{
if (m_bInitialized && m_psWindowsData->bIsVisable) // should suffice
{
// set the program
m_pCurrentRenderer->SetProgram(m_pProgramWrapper);
// set the render state to allow for transparency
m_pCurrentRenderer->SetRenderState(RenderState::BlendEnable, true);
/*
possible change
- let (re)sizing be handled by the program uniform, see http://dev.pixellight.org/forum/viewtopic.php?f=6&t=503
*/
{
const PLMath::Rectangle &cViewportRect = m_pCurrentRenderer->GetViewport();
float fX1 = cViewportRect.vMin.x;
float fY1 = cViewportRect.vMin.y;
float fX2 = cViewportRect.vMax.x;
float fY2 = cViewportRect.vMax.y;
Matrix4x4 m_mObjectSpaceToClipSpace;
m_mObjectSpaceToClipSpace.OrthoOffCenter(fX1, fX2, fY1, fY2, -1.0f, 1.0f);
// create program uniform
ProgramUniform *pProgramUniform = m_pProgramWrapper->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform)
pProgramUniform->Set(m_mObjectSpaceToClipSpace);
const int nTextureUnit = m_pProgramWrapper->Set("TextureMap", m_pTextureBuffer);
if (nTextureUnit >= 0)
{
// set sampler states
m_pCurrentRenderer->SetSamplerState(nTextureUnit, Sampler::AddressU, TextureAddressing::Clamp);
m_pCurrentRenderer->SetSamplerState(nTextureUnit, Sampler::AddressV, TextureAddressing::Clamp);
m_pCurrentRenderer->SetSamplerState(nTextureUnit, Sampler::MagFilter, TextureFiltering::None);
m_pCurrentRenderer->SetSamplerState(nTextureUnit, Sampler::MinFilter, TextureFiltering::None);
m_pCurrentRenderer->SetSamplerState(nTextureUnit, Sampler::MipFilter, TextureFiltering::None);
}
// set vertex attributes
m_pProgramWrapper->Set("VertexPosition", m_pVertexBuffer, VertexBuffer::Position);
m_pProgramWrapper->Set("VertexTexCoord", m_pVertexBuffer, VertexBuffer::TexCoord);
}
// draw primitives
m_pCurrentRenderer->DrawPrimitives(Primitive::TriangleStrip, 0, 4);
}
}
void Render(const BitmapGlyphLayoutTpl<BitmapFont>& layout)
{
// we'll need the layout font's essence
assert(layout._font._essence);
// use the layout's font
_use_font(*layout._font._essence);
// use the layout's storage
_use_layout(layout._data);
// load the font pages referenced by the layout
layout._font._essence->LoadPages(
layout._pages.data(),
layout._pages.size()
);
// set the Layout Width uniform value if necessary
if(_layout_width_active)
_layout_width.Set(layout._data._width);
// draw the glyphs
Context gl;
gl.DrawArrays(
PrimitiveType::Points,
layout._data._offset,
layout._data._length
);
}
void Render(double time)
{
namespace se = oglplus::smart_enums;
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
Mat4f camera = CamMatrixf::Orbiting(
Vec3f(),
6.5,
Degrees(time * 135),
Degrees(15 + (-SineWave(0.25+time/12.5)+1.0)*0.5*75)
);
ModelMatrixf model = ModelMatrixf::Translation(0.0f, 1.5f, 0.0);
ModelMatrixf identity;
//
norm_camera_matrix.Set(camera);
refl_camera_matrix.Set(camera);
// draw the plane into the stencil buffer
prog_norm.Use();
gl.Disable(se::Blend());
gl.Disable(se::DepthTest());
gl.Enable(se::StencilTest());
gl.ColorMask(false, false, false, false);
gl.StencilFunc(se::Always(), 1, 1);
gl.StencilOp(se::Keep(), se::Keep(), se::Replace());
norm_model_matrix.Set(identity);
plane.Bind();
gl.DrawArrays(se::TriangleStrip(), 0, 4);
gl.ColorMask(true, true, true, true);
gl.Enable(se::DepthTest());
gl.StencilFunc(se::Equal(), 1, 1);
gl.StencilOp(se::Keep(), se::Keep(), se::Keep());
// draw the torus using the reflection program
prog_refl.Use();
refl_model_matrix.Set(model);
torus.Bind();
torus_instr.Draw(torus_indices);
gl.Disable(se::StencilTest());
prog_norm.Use();
// draw the torus using the normal object program
norm_model_matrix.Set(model);
torus_instr.Draw(torus_indices);
// blend-in the plane
gl.Enable(se::Blend());
gl.BlendEquation(se::Max());
norm_model_matrix.Set(identity);
plane.Bind();
gl.DrawArrays(se::TriangleStrip(), 0, 4);
}
ReflectionExample()
: make_plane(
Vec3f(), Vec3f(3.0f, 0.0f, 0.0f), Vec3f(0.0f, 0.0f, -3.0f), 15, 15)
, plane_instr(make_plane.Instructions())
, plane_indices(make_plane.Indices())
, make_shape()
, shape_instr(make_shape.Instructions())
, shape_indices(make_shape.Indices())
, plane_vs(ObjectDesc("Plane vertex"))
, shape_vs(ObjectDesc("Shape vertex"))
, plane_fs(ObjectDesc("Plane fragment"))
, shape_fs(ObjectDesc("Shape fragment"))
, plane_projection_matrix(plane_prog)
, plane_camera_matrix(plane_prog)
, plane_model_matrix(plane_prog)
, shape_projection_matrix(shape_prog)
, shape_camera_matrix(shape_prog)
, shape_model_matrix(shape_prog)
, width(800)
, height(600)
, tex_size_div(2) {
plane_vs.Source(
"#version 140\n"
"uniform vec3 LightPosition;"
"uniform mat4 ProjectionMatrix, CameraMatrix, ModelMatrix;"
"in vec4 Position;"
"out vec3 vertLightDir;"
"out vec4 vertTexCoord;"
"void main()"
"{"
" gl_Position = ModelMatrix*Position;"
" vertLightDir = LightPosition - gl_Position.xyz;"
" gl_Position = ProjectionMatrix * CameraMatrix * gl_Position;"
" vertTexCoord = gl_Position;"
"}");
plane_vs.Compile();
plane_fs.Source(
"#version 140\n"
"uniform sampler2DRect ReflectTex;"
"uniform vec3 Normal;"
"in vec3 vertLightDir;"
"in vec4 vertTexCoord;"
"out vec3 fragColor;"
"const int n = 5;"
"const int ns = (n*n);"
"const float blur = 0.15/n;"
"void main()"
"{"
" float d = dot(Normal, normalize(vertLightDir));"
" float intensity = 0.5 + pow(1.4*d, 2.0);"
" vec3 color = vec3(0.0, 0.0, 0.0);"
" int n = 2;"
" float pct = 0.5/vertTexCoord.w;"
" for(int y=-n; y!=(n+1); ++y)"
" for(int x=-n; x!=(n+1); ++x)"
" {"
" vec2 coord = vertTexCoord.xy;"
" coord += vec2(blur*x, blur*y);"
" coord *= pct;"
" coord += vec2(0.5, 0.5);"
" coord *= textureSize(ReflectTex);"
" color += texture(ReflectTex, coord).rgb/ns;"
" }"
" fragColor = color*intensity;"
"}");
plane_fs.Compile();
plane_prog.AttachShader(plane_vs);
plane_prog.AttachShader(plane_fs);
plane_prog.Link();
plane_prog.Use();
plane_projection_matrix.BindTo("ProjectionMatrix");
plane_camera_matrix.BindTo("CameraMatrix");
plane_model_matrix.BindTo("ModelMatrix");
Vec3f lightPos(3.0f, 0.5f, 2.0f);
Uniform<Vec3f>(plane_prog, "LightPosition").Set(lightPos);
Uniform<Vec3f>(plane_prog, "Normal").Set(make_plane.Normal());
plane.Bind();
plane_verts.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_plane.Positions(data);
Buffer::Data(Buffer::Target::Array, data);
VertexArrayAttrib attr(plane_prog, "Position");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
//
Texture::Active(1);
gl.Bound(Texture::Target::Rectangle, depth_tex)
.MinFilter(TextureMinFilter::Linear)
.MagFilter(TextureMagFilter::Linear)
.WrapS(TextureWrap::ClampToEdge)
.WrapT(TextureWrap::ClampToEdge);
Texture::Active(0);
ProgramUniformSampler(plane_prog, "ReflectTex").Set(0);
gl.Bound(Texture::Target::Rectangle, reflect_tex)
.MinFilter(TextureMinFilter::Linear)
.MagFilter(TextureMagFilter::Linear)
.WrapS(TextureWrap::ClampToEdge)
.WrapT(TextureWrap::ClampToEdge);
gl.Bound(Framebuffer::Target::Draw, fbo)
.AttachTexture(FramebufferAttachment::Color, reflect_tex, 0)
.AttachTexture(FramebufferAttachment::Depth, depth_tex, 0);
shape_vs.Source(
"#version 140\n"
"uniform vec3 LightPosition;"
"uniform mat4 ProjectionMatrix, ModelMatrix, CameraMatrix;"
"in vec4 Position;"
"in vec3 Normal;"
"out vec3 vertNormal;"
"out vec3 vertLightDir;"
"out vec3 vertLightRefl;"
"out vec3 vertViewDir;"
"out vec3 vertColor;"
"void main()"
"{"
" gl_Position = ModelMatrix * Position;"
" vertLightDir = LightPosition - gl_Position.xyz;"
" vertNormal = mat3(ModelMatrix)*Normal;"
" vertLightRefl = reflect("
" -normalize(vertLightDir),"
" normalize(vertNormal)"
" );"
" vertViewDir = (vec4(0.0, 0.0, 1.0, 1.0)*CameraMatrix).xyz;"
" vertColor = vec3(1, 1, 1) - vertNormal;"
" gl_Position = ProjectionMatrix * CameraMatrix * gl_Position;"
"}");
shape_vs.Compile();
shape_fs.Source(
"#version 140\n"
"in vec3 vertNormal;"
"in vec3 vertLightDir;"
"in vec3 vertLightRefl;"
"in vec3 vertViewDir;"
"in vec3 vertColor;"
"out vec3 fragColor;"
"void main()"
"{"
" float l = length(vertLightDir);"
" float d = dot("
" normalize(vertNormal), "
" normalize(vertLightDir)"
" ) / l;"
" float s = dot("
" normalize(vertLightRefl),"
" normalize(vertViewDir)"
" );"
" vec3 lt = vec3(1.0, 1.0, 1.0);"
" fragColor = "
" vertColor * 0.4 + "
" (lt + vertColor)*pow(max(2.5*d, 0.0), 3) + "
" lt * pow(max(s, 0.0), 64);"
"}");
shape_fs.Compile();
shape_prog.AttachShader(shape_vs);
shape_prog.AttachShader(shape_fs);
shape_prog.Link();
shape_prog.Use();
shape_projection_matrix.BindTo("ProjectionMatrix");
shape_camera_matrix.BindTo("CameraMatrix");
shape_model_matrix.BindTo("ModelMatrix");
Uniform<Vec3f>(shape_prog, "LightPosition").Set(lightPos);
shape.Bind();
shape_verts.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_shape.Positions(data);
Buffer::Data(Buffer::Target::Array, data);
VertexArrayAttrib attr(shape_prog, "Position");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
shape_normals.Bind(Buffer::Target::Array);
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_shape.Normals(data);
Buffer::Data(Buffer::Target::Array, data);
VertexArrayAttrib attr(shape_prog, "Normal");
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
//
gl.ClearColor(0.5f, 0.5f, 0.4f, 0.0f);
gl.ClearDepth(1.0f);
gl.Enable(Capability::DepthTest);
gl.Enable(Capability::CullFace);
}
ReflectionExample(void)
: torus_indices(make_torus.Indices())
, torus_instr(make_torus.Instructions())
, vs_norm(ObjectDesc("Vertex-Normal"))
, vs_refl(ObjectDesc("Vertex-Reflection"))
, gs_refl(ObjectDesc("Geometry-Reflection"))
, norm_projection_matrix(prog_norm)
, norm_camera_matrix(prog_norm)
, norm_model_matrix(prog_norm)
, refl_projection_matrix(prog_refl)
, refl_camera_matrix(prog_refl)
, refl_model_matrix(prog_refl)
{
namespace se = oglplus::smart_enums;
// Set the normal object vertex shader source
vs_norm.Source(
"#version 330\n"
"in vec4 Position;"
"in vec3 Normal;"
"out vec3 geomColor;"
"out vec3 geomNormal;"
"out vec3 geomLight;"
"uniform mat4 ProjectionMatrix, CameraMatrix, ModelMatrix;"
"uniform vec3 LightPos;"
"void main(void)"
"{"
" gl_Position = ModelMatrix * Position;"
" geomColor = Normal;"
" geomNormal = mat3(ModelMatrix)*Normal;"
" geomLight = LightPos-gl_Position.xyz;"
" gl_Position = ProjectionMatrix * CameraMatrix * gl_Position;"
"}"
);
// compile it
vs_norm.Compile();
// Set the reflected object vertex shader source
// which just passes data to the geometry shader
vs_refl.Source(
"#version 330\n"
"in vec4 Position;"
"in vec3 Normal;"
"out vec3 vertNormal;"
"void main(void)"
"{"
" gl_Position = Position;"
" vertNormal = Normal;"
"}"
);
// compile it
vs_refl.Compile();
// Set the reflected object geometry shader source
// This shader creates a reflection matrix that
// relies on the fact that the reflection is going
// to be done by the y-plane
gs_refl.Source(
"#version 330\n"
"layout(triangles) in;"
"layout(triangle_strip, max_vertices = 6) out;"
"in vec3 vertNormal[];"
"uniform mat4 ProjectionMatrix;"
"uniform mat4 CameraMatrix;"
"uniform mat4 ModelMatrix;"
"out vec3 geomColor;"
"out vec3 geomNormal;"
"out vec3 geomLight;"
"uniform vec3 LightPos;"
"mat4 ReflectionMatrix = mat4("
" 1.0, 0.0, 0.0, 0.0,"
" 0.0,-1.0, 0.0, 0.0,"
" 0.0, 0.0, 1.0, 0.0,"
" 0.0, 0.0, 0.0, 1.0 "
");"
"void main(void)"
"{"
" for(int v=0; v!=gl_in.length(); ++v)"
" {"
" vec4 Position = gl_in[v].gl_Position;"
" gl_Position = ModelMatrix * Position;"
" geomColor = vertNormal[v];"
" geomNormal = mat3(ModelMatrix)*vertNormal[v];"
" geomLight = LightPos - gl_Position.xyz;"
" gl_Position = "
" ProjectionMatrix *"
" CameraMatrix *"
" ReflectionMatrix *"
" gl_Position;"
" EmitVertex();"
" }"
" EndPrimitive();"
"}"
);
// compile it
gs_refl.Compile();
// set the fragment shader source
fs.Source(
"#version 330\n"
"in vec3 geomColor;"
"in vec3 geomNormal;"
"in vec3 geomLight;"
"out vec4 fragColor;"
"void main(void)"
"{"
" float l = length(geomLight);"
" float d = l > 0.0 ? dot("
" geomNormal, "
" normalize(geomLight)"
" ) / l : 0.0;"
" float i = 0.2 + max(d, 0.0) * 2.0;"
" fragColor = vec4(abs(geomNormal)*i, 1.0);"
"}"
);
// compile it
fs.Compile();
// attach the shaders to the normal rendering program
prog_norm.AttachShader(vs_norm);
prog_norm.AttachShader(fs);
// link it
prog_norm.Link();
norm_projection_matrix.BindTo("ProjectionMatrix");
norm_camera_matrix.BindTo("CameraMatrix");
norm_model_matrix.BindTo("ModelMatrix");
// attach the shaders to the reflection rendering program
prog_refl.AttachShader(vs_refl);
prog_refl.AttachShader(gs_refl);
prog_refl.AttachShader(fs);
// link it
prog_refl.Link();
refl_projection_matrix.BindTo("ProjectionMatrix");
refl_camera_matrix.BindTo("CameraMatrix");
refl_model_matrix.BindTo("ModelMatrix");
// bind the VAO for the torus
torus.Bind();
// bind the VBO for the torus vertices
torus_verts.Bind(se::Array());
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_torus.Positions(data);
// upload the data
Buffer::Data(se::Array(), data);
// setup the vertex attribs array for the vertices
typedef VertexArrayAttrib VAA;
VertexAttribSlot
loc_norm = VAA::GetLocation(prog_norm, "Position"),
loc_refl = VAA::GetLocation(prog_refl, "Position");
assert(loc_norm == loc_refl);
VertexArrayAttrib attr(loc_norm);
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
// bind the VBO for the torus normals
torus_normals.Bind(se::Array());
{
std::vector<GLfloat> data;
GLuint n_per_vertex = make_torus.Normals(data);
// upload the data
Buffer::Data(se::Array(), data);
// setup the vertex attribs array for the normals
typedef VertexArrayAttrib VAA;
VertexAttribSlot
loc_norm = VAA::GetLocation(prog_norm, "Normal"),
loc_refl = VAA::GetLocation(prog_refl, "Normal");
assert(loc_norm == loc_refl);
VertexArrayAttrib attr(loc_norm);
attr.Setup<GLfloat>(n_per_vertex);
attr.Enable();
}
// bind the VAO for the plane
plane.Bind();
// bind the VBO for the plane vertices
plane_verts.Bind(se::Array());
{
GLfloat data[4*3] = {
-2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, -2.0f,
2.0f, 0.0f, 2.0f,
2.0f, 0.0f, -2.0f
};
// upload the data
Buffer::Data(se::Array(), 4*3, data);
// setup the vertex attribs array for the vertices
prog_norm.Use();
VertexArrayAttrib attr(prog_norm, "Position");
attr.Setup<Vec3f>();
attr.Enable();
}
// bind the VBO for the torus normals
plane_normals.Bind(se::Array());
{
GLfloat data[4*3] = {
-0.1f, 1.0f, 0.1f,
-0.1f, 1.0f, -0.1f,
0.1f, 1.0f, 0.1f,
0.1f, 1.0f, -0.1f
};
// upload the data
Buffer::Data(se::Array(), 4*3, data);
// setup the vertex attribs array for the normals
prog_norm.Use();
VertexArrayAttrib attr(prog_norm, "Normal");
attr.Setup<Vec3f>();
attr.Enable();
}
NoVertexArray().Bind();
Vec3f lightPos(2.0f, 2.0f, 3.0f);
prog_norm.Use();
(prog_norm/"LightPos").Set(lightPos);
prog_refl.Use();
(prog_refl/"LightPos").Set(lightPos);
//
gl.ClearColor(0.2f, 0.2f, 0.2f, 0.0f);
gl.ClearDepth(1.0f);
gl.ClearStencil(0);
}
/**
* @brief
* Sets the value of this parameter to a parameter within the given manager GPU program
*/
bool Parameter::SetManagerParameterValue(Program &cProgram, const PLCore::String &sName) const
{
// Get the GPU program uniform
ProgramUniform *pProgramUniform = cProgram.GetUniform(sName);
if (pProgramUniform) {
// Set parameter
switch (m_nType) {
case Parameters::String:
// GPU programs don't have string parameters
break;
case Parameters::Integer:
pProgramUniform->Set(*static_cast<const int*>(m_pValue));
break;
case Parameters::Integer2:
pProgramUniform->Set2(static_cast<const int*>(m_pValue));
break;
case Parameters::Integer3:
pProgramUniform->Set3(static_cast<const int*>(m_pValue));
break;
case Parameters::Integer4:
pProgramUniform->Set4(static_cast<const int*>(m_pValue));
break;
case Parameters::Float:
pProgramUniform->Set(*static_cast<const float*>(m_pValue));
break;
case Parameters::Float2:
pProgramUniform->Set2(static_cast<const float*>(m_pValue));
break;
case Parameters::Float3:
pProgramUniform->Set3(static_cast<const float*>(m_pValue));
break;
case Parameters::Float4:
pProgramUniform->Set4(static_cast<const float*>(m_pValue));
break;
case Parameters::Double:
pProgramUniform->Set(*static_cast<const double*>(m_pValue));
break;
case Parameters::Double2:
pProgramUniform->Set2(static_cast<const double*>(m_pValue));
break;
case Parameters::Double3:
pProgramUniform->Set3(static_cast<const double*>(m_pValue));
break;
case Parameters::Double4:
pProgramUniform->Set4(static_cast<const double*>(m_pValue));
break;
case Parameters::Float3x3:
// [TODO] New shader interface: Add Set3x3 method?
//pProgramUniform->Set(static_cast<const float*>(m_pValue));
pProgramUniform->Set(Matrix3x3(static_cast<const float*>(m_pValue)));
break;
case Parameters::Float3x4:
// [TODO] New shader interface: Add Set3x4 method?
//pProgramUniform->Set(static_cast<const float*>(m_pValue));
break;
case Parameters::Float4x4:
// [TODO] New shader interface: Add Set4x4 method?
pProgramUniform->Set(Matrix4x4(static_cast<const float*>(m_pValue)));
break;
case Parameters::Double4x4:
// [TODO] New shader interface: Add Set4x4 method?
//pProgramUniform->Set(static_cast<const double*>(m_pValue));
break;
case Parameters::TextureBuffer:
return false; // Error, not supported
case Parameters::UnknownDataType:
default:
return false; // Error, not supported
}
// Done
return true;
}
// Error!
return false;
}
//[-------------------------------------------------------]
//[ Private virtual PLRenderer::SurfacePainter functions ]
//[-------------------------------------------------------]
void SPRTTShaders::OnPaint(Surface &cSurface)
{
// Get the used renderer
Renderer &cRenderer = GetRenderer();
// Clear the content of the current used render target by using gray (this way, in case on an graphics error we might still see at least something)
cRenderer.Clear(Clear::Color | Clear::ZBuffer, Color4::Gray);
// Backup current render target and set the new one to render in our texture buffer
Surface *pRenderSurfaceBackup = cRenderer.GetRenderTarget();
if (cRenderer.SetRenderTarget(m_pRenderTarget)) {
if (m_pColorTarget1)
cRenderer.SetColorRenderTarget(static_cast<TextureBuffer*>(m_pColorTarget1), 1);
if (m_pColorTarget2)
cRenderer.SetColorRenderTarget(static_cast<TextureBuffer*>(m_pColorTarget2), 2);
if (m_pColorTarget3)
cRenderer.SetColorRenderTarget(static_cast<TextureBuffer*>(m_pColorTarget3), 3);
// Draw the scene
DrawScene(cRenderer);
// Reset render target
cRenderer.SetRenderTarget(pRenderSurfaceBackup);
}
// This code is similar to the code of the triangle sample. But instead of a
// triangle we will draw three rotating quadrangles. Further the used vertex
// buffer has texture coordinates and we apply the 'teapot' texture buffer on the primitives.
// Clear the content of the current used render target
// Make our program to the current one
if (cRenderer.SetProgram(m_pProgram)) {
// Set program vertex attributes, this creates a connection between "Vertex Buffer Attribute" and "Vertex Shader Attribute"
m_pProgram->Set("VertexPosition", m_pPositionVertexBuffer, VertexBuffer::Position);
m_pProgram->Set("VertexTextureCoordinate", m_pPositionVertexBuffer, VertexBuffer::TexCoord);
m_pProgram->Set("VertexColor", m_pColorVertexBuffer, VertexBuffer::Color);
// Set color factor
m_pProgram->Set("ColorFactor", 0.0f);
// Calculate the composed view projection matrix - we need it multiple times
Matrix4x4 mViewProjection;
{
// Calculate the view matrix
Matrix4x4 mView;
{
mView.SetTranslation(0.0f, 0.0f, -5.0f);
}
// Calculate the projection matrix
Matrix4x4 mProjection;
{
const float fAspect = 1.0f;
const float fAspectRadio = cRenderer.GetViewport().GetWidth()/(cRenderer.GetViewport().GetHeight()*fAspect);
mProjection.PerspectiveFov(static_cast<float>(45.0f*Math::DegToRad), fAspectRadio, 0.001f, 1000.0f);
}
// Calculate the composed view projection matrix
mViewProjection = mProjection*mView;
}
// No back face culling, please. Else we can only see one 'side' of the quadrangle
cRenderer.SetRenderState(RenderState::CullMode, Cull::None);
Matrix4x4 mWorld;
{ // Draw quadrangle 1: Primary render target
// Set object space to clip space matrix uniform
ProgramUniform *pProgramUniform = m_pProgram->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform) {
mWorld.SetTranslationMatrix(2.0f, 1.0f, 0.0f);
pProgramUniform->Set(mViewProjection*mWorld);
}
{ // Set the texture buffer we rendered our teapot in as the current texture buffer
const int nTextureUnit = m_pProgram->Set("DiffuseMap", m_pRenderTarget->GetTextureBuffer());
if (nTextureUnit >= 0) {
// Disable mip mapping - this is required because we created/filled no mipmaps for your texture buffer
cRenderer.SetSamplerState(nTextureUnit, Sampler::MagFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MinFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MipFilter, TextureFiltering::None);
}
}
// Draw
cRenderer.DrawPrimitives(Primitive::TriangleStrip, 0, 4);
}
{ // Draw quadrangle 2: Color render target 1
// Set object space to clip space matrix uniform
ProgramUniform *pProgramUniform = m_pProgram->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform) {
mWorld.FromEulerAngleY(static_cast<float>(m_fRotation*Math::DegToRad));
mWorld.SetTranslation(-2.0f, 1.0f, 0.0f);
pProgramUniform->Set(mViewProjection*mWorld);
}
{ // Set the texture buffer we rendered our teapot in as the current texture buffer
const int nTextureUnit = m_pProgram->Set("DiffuseMap", m_pColorTarget1 ? static_cast<TextureBuffer*>(m_pColorTarget1) : m_pRenderTarget->GetTextureBuffer());
if (nTextureUnit >= 0) {
// Disable mip mapping - this is required because we created/filled no mipmaps for your texture buffer
cRenderer.SetSamplerState(nTextureUnit, Sampler::MagFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MinFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MipFilter, TextureFiltering::None);
}
}
// Draw
cRenderer.DrawPrimitives(Primitive::TriangleStrip, 0, 4);
}
{ // Draw quadrangle 3: Color render target 2
// Set object space to clip space matrix uniform
ProgramUniform *pProgramUniform = m_pProgram->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform) {
mWorld.FromEulerAngleZ(static_cast<float>(m_fRotation*Math::DegToRad));
mWorld.SetTranslation(0.0f, 1.0f, 0.0f);
pProgramUniform->Set(mViewProjection*mWorld);
}
{ // Set the texture buffer we rendered our teapot in as the current texture buffer
const int nTextureUnit = m_pProgram->Set("DiffuseMap", m_pColorTarget2 ? static_cast<TextureBuffer*>(m_pColorTarget2) : m_pRenderTarget->GetTextureBuffer());
if (nTextureUnit >= 0) {
// Disable mip mapping - this is required because we created/filled no mipmaps for your texture buffer
cRenderer.SetSamplerState(nTextureUnit, Sampler::MagFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MinFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MipFilter, TextureFiltering::None);
}
}
// Draw
cRenderer.DrawPrimitives(Primitive::TriangleStrip, 0, 4);
}
{ // Draw quadrangle 4: Color render target 3
// Set object space to clip space matrix uniform
ProgramUniform *pProgramUniform = m_pProgram->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform) {
mWorld.FromEulerAngleZ(static_cast<float>(-m_fRotation*Math::DegToRad));
mWorld.SetTranslation(-2.0f, -1.0f, 0.0f);
pProgramUniform->Set(mViewProjection*mWorld);
}
{ // Set the texture buffer we rendered our teapot in as the current texture buffer
const int nTextureUnit = m_pProgram->Set("DiffuseMap", m_pColorTarget3 ? static_cast<TextureBuffer*>(m_pColorTarget3) : m_pRenderTarget->GetTextureBuffer());
if (nTextureUnit >= 0) {
// Disable mip mapping - this is required because we created/filled no mipmaps for your texture buffer
cRenderer.SetSamplerState(nTextureUnit, Sampler::MagFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MinFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MipFilter, TextureFiltering::None);
}
}
// Draw
cRenderer.DrawPrimitives(Primitive::TriangleStrip, 0, 4);
}
{ // Draw quadrangle 4: Primary render target, but with per vertex color - the primitive will be quite colorful :)
// Set object space to clip space matrix uniform
ProgramUniform *pProgramUniform = m_pProgram->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform) {
mWorld.FromEulerAngleZ(static_cast<float>(-m_fRotation*Math::DegToRad));
mWorld.SetTranslation(2.0f, -1.0f, 0.0f);
pProgramUniform->Set(mViewProjection*mWorld);
}
// Set color factor
m_pProgram->Set("ColorFactor", 1.0f);
{ // Set the texture buffer we rendered our teapot in as the current texture buffer
const int nTextureUnit = m_pProgram->Set("DiffuseMap", m_pRenderTarget->GetTextureBuffer());
if (nTextureUnit >= 0) {
// Disable mip mapping - this is required because we created/filled no mipmaps for your texture buffer
cRenderer.SetSamplerState(nTextureUnit, Sampler::MagFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MinFilter, TextureFiltering::Linear);
cRenderer.SetSamplerState(nTextureUnit, Sampler::MipFilter, TextureFiltering::None);
}
}
// Draw
cRenderer.DrawPrimitives(Primitive::TriangleStrip, 0, 4);
}
// Change the backface culling back to the default setting
cRenderer.SetRenderState(RenderState::CullMode, Cull::CCW);
}
// Increase the rotation by the current time difference (time past since the last frame)
// -> Normally, such work should NOT be performed within the rendering step, but we want
// to keep the implementation simple in here...
m_fRotation += Timing::GetInstance()->GetTimeDifference()*50;
}
/**
* @brief
* Draws the scene
*/
void SPRTTShaders::DrawScene(Renderer &cRenderer)
{
// Clear the content of the current used render target by using gray (this way, in case on an graphics error we might still see at least something)
cRenderer.Clear(Clear::Color | Clear::ZBuffer, Color4::Gray);
// Make our program to the current one
if (cRenderer.SetProgram(m_pSceneProgram)) {
// Calculate the world matrix
Matrix4x4 mWorld;
{
// Build a rotation matrix by using a given Euler angle around the y-axis
mWorld.FromEulerAngleY(static_cast<float>(m_fRotation*Math::DegToRad));
}
// Set program uniforms
ProgramUniform *pProgramUniform = m_pSceneProgram->GetUniform("ObjectSpaceToClipSpaceMatrix");
if (pProgramUniform) {
// Calculate the view matrix
Matrix4x4 mView;
{
mView.SetTranslation(0.0f, -0.1f, -0.5f);
}
// Calculate the projection matrix
Matrix4x4 mProjection;
{
const float fAspect = 1.0f;
const float fAspectRadio = cRenderer.GetViewport().GetWidth()/(cRenderer.GetViewport().GetHeight()*fAspect);
mProjection.PerspectiveFov(static_cast<float>(45.0f*Math::DegToRad), fAspectRadio, 0.001f, 1000.0f);
}
// Calculate the final composed world view projection matrix
const Matrix4x4 mWorldViewProjection = mProjection*mView*mWorld;
// Set object space to clip space matrix uniform
pProgramUniform->Set(mWorldViewProjection);
}
// Set object space to world space matrix uniform
pProgramUniform = m_pSceneProgram->GetUniform("ObjectSpaceToWorldSpaceMatrix");
if (pProgramUniform)
pProgramUniform->Set(mWorld);
// Set world space light direction
pProgramUniform = m_pSceneProgram->GetUniform("LightDirection");
if (pProgramUniform)
pProgramUniform->Set(Vector3::UnitZ);
// Get the used mesh
const Mesh *pMesh = m_pMeshHandler->GetMesh();
if (pMesh) {
// Get the mesh LOD level to use
const MeshLODLevel *pLODLevel = pMesh->GetLODLevel(0);
if (pLODLevel && pLODLevel->GetIndexBuffer()) {
// Get and use the index buffer of the mesh LOD level
cRenderer.SetIndexBuffer(pLODLevel->GetIndexBuffer());
// Get the vertex buffer of the mesh handler
VertexBuffer *pVertexBuffer = m_pMeshHandler->GetVertexBuffer();
if (pVertexBuffer) {
// Set program vertex attributes, this creates a connection between "Vertex Buffer Attribute" and "Vertex Shader Attribute"
ProgramAttribute *pProgramAttribute = m_pSceneProgram->GetAttribute("VertexPosition");
if (pProgramAttribute)
pProgramAttribute->Set(pVertexBuffer, VertexBuffer::Position);
pProgramAttribute = m_pSceneProgram->GetAttribute("VertexNormal");
if (pProgramAttribute)
pProgramAttribute->Set(pVertexBuffer, VertexBuffer::Normal);
// Loop through all geometries of the mesh
const Array<Geometry> &lstGeometries = *pLODLevel->GetGeometries();
for (uint32 nGeo=0; nGeo<lstGeometries.GetNumOfElements(); nGeo++) {
// Is this geometry active?
const Geometry &cGeometry = lstGeometries[nGeo];
if (cGeometry.IsActive()) {
// Draw the geometry
cRenderer.DrawIndexedPrimitives(
cGeometry.GetPrimitiveType(),
0,
pVertexBuffer->GetNumOfElements()-1,
cGeometry.GetStartIndex(),
cGeometry.GetIndexSize()
);
}
}
}
}
}
}
}