protected override void DoInitialize()
{
base.DoInitialize();
this.lastTime = DateTime.Now;
this.RotateSpeed = 0.2f;
var bitmap = new Bitmap(@"sunColor.png");
var storage = new TexImage1D(0, GL.GL_RGBA, bitmap.Width, 0, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bitmap));
var texture = new Texture(TextureTarget.Texture1D, storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR)
);
texture.Initialize();
bitmap.Dispose();
RenderUnit unit = this.RenderUnits[0];
ShaderProgram program = unit.Program;
program.SetUniform("sunColor", texture);
}
protected override void DoInitialize()
{
base.DoInitialize();
this.lastTime = DateTime.Now;
this.RotateSpeed = 0.2f;
string folder = System.Windows.Forms.Application.StartupPath;
var bitmap = new Bitmap(System.IO.Path.Combine(folder, @"sunColor.png"));
var storage = new TexImage1D(GL.GL_RGBA, bitmap.Width, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bitmap));
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR)
);
texture.Initialize();
bitmap.Dispose();
RenderMethod method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
program.SetUniform("sunColor", texture);
}
public static Texture Load()
{
//function to generate interpolated colours from the set of colour values (jet_values)
//this function first calculates the amount of increments for each component and the
//index difference. Then it linearly interpolates the adjacent values to get the
//interpolated result.
vec4[] pData = new vec4[256];
int[] indices = new int[9];
//fill the colour values at the place where the colour should be after interpolation
for (int i = 0; i < 9; i++)
{
int index = i * 28;
pData[index][0] = jet_values[i].x;
pData[index][1] = jet_values[i].y;
pData[index][2] = jet_values[i].z;
pData[index][3] = jet_values[i].w;
indices[i] = index;
}
//for each adjacent pair of colours, find the difference in the rgba values and then interpolate
for (int j = 0; j < 9 - 1; j++)
{
float dDataR = (pData[indices[j + 1]][0] - pData[indices[j]][0]);
float dDataG = (pData[indices[j + 1]][1] - pData[indices[j]][1]);
float dDataB = (pData[indices[j + 1]][2] - pData[indices[j]][2]);
float dDataA = (pData[indices[j + 1]][3] - pData[indices[j]][3]);
int dIndex = indices[j + 1] - indices[j];
float dDataIncR = dDataR / (float)(dIndex);
float dDataIncG = dDataG / (float)(dIndex);
float dDataIncB = dDataB / (float)(dIndex);
float dDataIncA = dDataA / (float)(dIndex);
for (int i = indices[j] + 1; i < indices[j + 1]; i++)
{
pData[i][0] = (pData[i - 1][0] + dDataIncR);
pData[i][1] = (pData[i - 1][1] + dDataIncG);
pData[i][2] = (pData[i - 1][2] + dDataIncB);
pData[i][3] = (pData[i - 1][3] + dDataIncA);
}
}
var storage = new TexImage1D(GL.GL_RGBA, 256, GL.GL_RGBA, GL.GL_FLOAT, new ArrayDataProvider <vec4>(pData));
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
return(texture);
}
private void GetTextures(out Texture texture0, out Texture texture1, out Texture texture2)
{
{
string folder = System.Windows.Forms.Application.StartupPath;
var bmp = new Bitmap(System.IO.Path.Combine(folder, @"base.png"));
TexStorageBase storage = new TexImageBitmap(bmp);
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
bmp.Dispose();
texture0 = texture;
}
{
string folder = System.Windows.Forms.Application.StartupPath;
var bmp = new Bitmap(System.IO.Path.Combine(folder, "Rainbow.png"));
TexStorageBase storage = new TexImage1D(GL.GL_RGBA, bmp.Width, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bmp));
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
bmp.Dispose();
texture1 = texture;
}
{
string folder = System.Windows.Forms.Application.StartupPath;
var bmp = new Bitmap(System.IO.Path.Combine(folder, @"fish.png"));
bmp.RotateFlip(RotateFlipType.Rotate180FlipX);
TexStorageBase storage = new TexImageBitmap(bmp);
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
bmp.Dispose();
texture2 = texture;
}
}
private Texture GetTexture()
{
string folder = System.Windows.Forms.Application.StartupPath;
var bmp = new Bitmap(System.IO.Path.Combine(folder, "Rainbow.png"));
TexStorageBase storage = new TexImage1D(GL.GL_RGBA, bmp.Width, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bmp));
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
bmp.Dispose();
return(texture);
}
private Texture InitTFF1DTexture(string filename)
{
var bitmap = new System.Drawing.Bitmap(filename);
const int width = 256;
var storage = new TexImage1D(GL.GL_RGBA8, width, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bitmap));
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_NEAREST),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_NEAREST));
texture.Initialize();
texture.TextureUnitIndex = 0;
bitmap.Dispose();
return(texture);
}
private Texture InitTFF1DTexture(string filename)
{
byte[] tff;
using (var fs = new FileStream(filename, FileMode.Open, FileAccess.Read))
using (var br = new BinaryReader(fs))
{
tff = br.ReadBytes((int)fs.Length);
}
const int width = 256;
var storage = new TexImage1D(GL.GL_RGBA8, width, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, new ArrayDataProvider <byte>(tff));
var texture = new Texture(storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_NEAREST),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_NEAREST));
texture.Initialize();
return(texture);
}
