public void SetShaderUniforms(Shader shader)
{
foreach (var uniform in intUniformsByName)
{
shader.SetInt(uniform.Key, uniform.Value);
}
foreach (var uniform in floatUniformsByName)
{
shader.SetFloat(uniform.Key, uniform.Value);
}
foreach (var uniform in vec2UniformsByName)
{
shader.SetVector2(uniform.Key, uniform.Value);
}
foreach (var uniform in vec3UniformsByName)
{
shader.SetVector3(uniform.Key, uniform.Value);
}
foreach (var uniform in vec4UniformsByName)
{
shader.SetVector4(uniform.Key, uniform.Value);
}
foreach (var uniform in mat4UniformsByName)
{
Matrix4 value = uniform.Value;
shader.SetMatrix4x4(uniform.Key, ref value);
}
}
private static void DrawPolygonUv(NUD.Polygon p, int windowWidth, int windowHeight)
{
Shader shader = OpenTKSharedResources.shaders["UV"];
shader.UseProgram();
shader.EnableVertexAttributes();
uvPositionVbo.Bind();
// Draw over everything
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
GL.Clear(ClearBufferMask.DepthBufferBit);
// Scale to 0 to 1 UV space and flip vertically.
Matrix4 matrix = Matrix4.CreateOrthographicOffCenter(0, 1, 1, 0, -1, 1);
shader.SetMatrix4x4("mvpMatrix", ref matrix);
SetVertexAttributes(shader);
// Draw the uvs.
GL.LineWidth(1.5f);
GL.Enable(EnableCap.LineSmooth);
uvElementsIbo.Bind();
GL.DrawElements(PrimitiveType.Triangles, p.displayFaceSize, DrawElementsType.UnsignedInt, p.Offset);
shader.DisableVertexAttributes();
}
public void Draw(Matrix4 mvpMatrix)
{
Shader shader = OpenTKSharedResources.shaders["SolidColor3D"];
if (!shader.ProgramCreatedSuccessfully)
{
return;
}
// Set up.
shader.UseProgram();
shader.EnableVertexAttributes();
positionBuffer.Bind();
// Set shader values.
Matrix4 matrix = mvpMatrix;
shader.SetMatrix4x4("mvpMatrix", ref matrix);
// Draw.
int rectangularPrismVertCount = 24;
GL.DrawArrays(PrimitiveType.TriangleFan, 0, rectangularPrismVertCount);
shader.DisableVertexAttributes();
}
private static void SetShaderUniforms(Matrix4 mvpMatrix, float scaleX, float scaleY, float scaleZ, float centerX, float centerY, float centerZ, Shader shader)
{
shader.SetVector3("center", centerX, centerY, centerZ);
shader.SetVector3("scale", scaleX, scaleY, scaleZ);
shader.SetVector4("color", new Vector4(1, 0, 1, 1));
Matrix4 matrix = mvpMatrix;
shader.SetMatrix4x4("mvpMatrix", ref matrix);
}