protected override async Task LoadContent()
{
material = new Material();
string vsSource = @"
attribute vec4 aPosition;
attribute vec2 aTexture;
attribute vec4 aColor;
attribute float aSamplerIndex;
uniform mat4 uProjectionMatrix;
varying mediump vec4 vColor;
varying highp vec2 vTextureCoord;
varying mediump float vSamplerIndex;
void main(void) {
gl_Position = uProjectionMatrix * aPosition;
vTextureCoord = aTexture;
vColor = aColor;
vSamplerIndex = aSamplerIndex;
}";
string fsSource = @"
varying highp vec2 vTextureCoord;
varying mediump vec4 vColor;
varying mediump float vSamplerIndex;
uniform sampler2D uSampler0;
uniform sampler2D uSampler1;
uniform sampler2D uSampler2;
uniform sampler2D uSampler3;
uniform sampler2D uSampler4;
uniform sampler2D uSampler5;
uniform sampler2D uSampler6;
uniform sampler2D uSampler7;
uniform sampler2D uSampler8;
uniform sampler2D uSampler9;
void main(void) {
mediump vec4 color;
if(vSamplerIndex > -0.5 && vSamplerIndex < 0.5)
{
color = texture2D(uSampler0, vTextureCoord);
}
if(vSamplerIndex > 0.5 && vSamplerIndex < 1.5)
{
color = texture2D(uSampler1, vTextureCoord);
}
if(vSamplerIndex > 1.5 && vSamplerIndex < 2.5)
{
color = texture2D(uSampler2, vTextureCoord);
}
if(vSamplerIndex > 2.5 && vSamplerIndex < 3.5)
{
color = texture2D(uSampler3, vTextureCoord);
}
if(vSamplerIndex > 3.5 && vSamplerIndex < 4.5)
{
color = texture2D(uSampler4, vTextureCoord);
}
if(vSamplerIndex > 4.5 && vSamplerIndex < 5.5)
{
color = texture2D(uSampler5, vTextureCoord);
}
if(vSamplerIndex > 5.5 && vSamplerIndex < 6.5)
{
color = texture2D(uSampler6, vTextureCoord);
}
if(vSamplerIndex > 6.5 && vSamplerIndex < 7.5)
{
color = texture2D(uSampler7, vTextureCoord);
}
if(vSamplerIndex > 7.5 && vSamplerIndex < 8.5)
{
color = texture2D(uSampler8, vTextureCoord);
}
if(vSamplerIndex > 8.5 && vSamplerIndex < 9.5)
{
color = texture2D(uSampler9, vTextureCoord);
}
gl_FragColor = color * vColor;
}";
var vertexShader = Context.CompileShader(ShaderType.VERTEX_SHADER, vsSource);
var fragmentShader = Context.CompileShader(ShaderType.FRAGMENT_SHADER, fsSource);
material.Program = Context.CreateShaderProgram();
material.Program.Attach(vertexShader);
material.Program.Attach(fragmentShader);
material.Program.Link();
Texture1 = await Context.LoadTextureAsync("res/birb.jpg");
Texture2 = await Context.LoadTextureAsync("res/nyan.png");
material.Textures = new[] { Texture1 };
// material.Int32Uniforms = new Dictionary<string,int>()
// {
// { "uSampler0", 0 },
// { "uSampler1", 1 },
// { "uSampler2", 2 },
// { "uSampler3", 3 },
// { "uSampler4", 4 },
// { "uSampler5", 5 },
// { "uSampler6", 6 },
// { "uSampler7", 7 },
// { "uSampler8", 8 },
// { "uSampler9", 9 }
// };
material.Matrix4Uniforms = new Dictionary <string, Matrix4>()
{
{
"uProjectionMatrix",
Matrix4.Orthogonal(-Context.Width * 0.5f, -Context.Height * 0.5f,
Context.Width * 0.5f, Context.Height * 0.5f, -1, 1)
}
};
drawables = new SpriteDrawable[benchmarkElementCount];
Random random = new Random();
for (int i = 0; i < benchmarkElementCount; i++)
{
drawables[i] = new SpriteDrawable()
{
Color = new Color(1, 1, 1, 1),
Size = new Vector2(100, 100),
SourceRectangle = null,
Texture = Texture1,
Transform = TransformUtils.MakeTransform(
Vector3.Zero,
new Vector3(
(float)random.NextDouble() * Context.Width - Context.Width * 0.5f,
(float)random.NextDouble() * Context.Height - Context.Height * 0.5f,
0
),
new Vector3(0, 0, (float)(random.NextDouble() * Math.PI)),
Vector3.One
)
};
}
SpriteManager = new SpriteManager();
}