private void InitRenderer()
{
//create a default camera, because it's required during the viewport's creation.
camera = new Camera();
Scene.RootNode.CreateChildNode("camera", camera);
//create the renderer and render window from window's native handle
renderer = Renderer.CreateRenderer();
//Right now we only support native window handle from Microsoft Windows
//we'll support more platform on user's demand.
window = renderer.RenderFactory.CreateRenderWindow(new RenderParameters(), Handle);
//create 4 viewports, the viewport's area is meanless here because we'll change it to the right area in the SetViewports later
viewports = new[]
{
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1)),
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1)),
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1)),
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1))
};
SetViewports(1);
//initialize shader for grid
GLSLSource src = new GLSLSource();
src.VertexShader = @"#version 330 core
layout (location = 0) in vec3 position;
uniform mat4 matWorldViewProj;
void main()
{
gl_Position = matWorldViewProj * vec4(position, 1.0f);
}";
src.FragmentShader = @"#version 330 core
out vec4 color;
void main()
{
color = vec4(1, 1, 1, 1);
}";
//define the input format used by GLSL vertex shader
//the format is
// struct ControlPoint {
// FVector3 Position;
//}
VertexDeclaration fd = new VertexDeclaration();
fd.AddField(VertexFieldDataType.FVector3, VertexFieldSemantic.Position);
//compile shader from GLSL source code and specify the vertex input format
gridShader = renderer.RenderFactory.CreateShaderProgram(src, fd);
//connect GLSL uniform to renderer's internal variable
gridShader.Variables = new ShaderVariable[]
{
new ShaderVariable("matWorldViewProj", VariableSemantic.MatrixWorldViewProj)
};
SceneUpdated("");
}
private static ShaderSet CreateDepthShader(Renderer renderer)
{
GLSLSource src = new GLSLSource();
src.VertexShader = @"#version 330 core
layout (location = 0) in vec3 position;
uniform mat4 matWorldViewProj;
out float depth;
void main()
{
gl_Position = matWorldViewProj * vec4(position, 1.0f);
float zfar = 200.0;
float znear = 0.5;
//visualize the depth by linearize it so we don't get a blank screen
depth = (2.0 * znear) / (zfar + znear - gl_Position.z /gl_Position.w * (zfar - znear));
}";
src.FragmentShader = @"#version 330 core
in float depth;
out vec4 color;
void main()
{
color = vec4(depth, depth, depth, 1);
}";
//we only need the position to render the depth map
VertexDeclaration fd = new VertexDeclaration();
fd.AddField(VertexFieldDataType.FVector3, VertexFieldSemantic.Position);
//compile shader from GLSL source code and specify the vertex input format
var shader = renderer.RenderFactory.CreateShaderProgram(src, fd);
//connect GLSL uniform to renderer's internal variable
shader.Variables = new ShaderVariable[]
{
new ShaderVariable("matWorldViewProj", VariableSemantic.MatrixWorldViewProj)
};
//create a shader set
ShaderSet ret = new ShaderSet();
//we only use the fallback, and left other shaders unassigned, so all materials will be rendered by this shader
ret.Fallback = shader;
return(ret);
}
//ExStart:RenderView
private void InitRenderer()
{
// Create a default camera, because it's required during the viewport's creation.
camera = new Camera();
Scene.RootNode.CreateChildNode("camera", camera);
// Create the renderer and render window from window's native handle
renderer = Renderer.CreateRenderer();
// Right now we only support native window handle from Microsoft Windows
// We'll support more platform on user's demand.
window = renderer.RenderFactory.CreateRenderWindow(new RenderParameters(), Handle);
// Create 4 viewports, the viewport's area is meanless here because we'll change it to the right area in the SetViewports later
viewports = new[]
{
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1)),
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1)),
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1)),
window.CreateViewport(camera, Color.Gray, RelativeRectangle.FromScale(0, 0, 1, 1))
};
SetViewports(1);
//initialize shader for grid
GLSLSource src = new GLSLSource();
src.VertexShader = @"#version 330 core
layout (location = 0) in vec3 position;
uniform mat4 matWorldViewProj;
void main()
{
gl_Position = matWorldViewProj * vec4(position, 1.0f);
}";
src.FragmentShader = @"#version 330 core
out vec4 color;
void main()
{
color = vec4(1, 1, 1, 1);
}";
// Define the input format used by GLSL vertex shader the format is struct ControlPoint { FVector3 Position;}
VertexDeclaration fd = new VertexDeclaration();
fd.AddField(VertexFieldDataType.FVector3, VertexFieldSemantic.Position);
// Compile shader from GLSL source code and specify the vertex input format
gridShader = renderer.RenderFactory.CreateShaderProgram(src, fd);
// Connect GLSL uniform to renderer's internal variable
gridShader.Variables = new ShaderVariable[]
{
new ShaderVariable("matWorldViewProj", VariableSemantic.MatrixWorldViewProj)
};
SceneUpdated("");
}
