public unsafe void SetUniform3fv(int location, int count, bool transpose, float[] value)
{
mat3 matrix;
if (transpose)
{
matrix = new mat3(
new vec3(value[0], value[3], value[6]),
new vec3(value[1], value[4], value[7]),
new vec3(value[2], value[5], value[8])
);
}
else
{
matrix = new mat3(
new vec3(value[0], value[1], value[2]),
new vec3(value[3], value[4], value[5]),
new vec3(value[6], value[7], value[8])
);
}
if (count == 1)
{
this.SetUniform(location, matrix);
}
else
{
var v = new mat3[count];
for (int i = 0; i < count; i++)
{
v[i] = matrix;
}
this.SetUniform(location, v);
}
}
private static void LinearInterpolationTriangle(vec3 pixel, vec3 fragCoord0, vec3 fragCoord1, vec3 fragCoord2, out float p0, out float p1, out float p2)
{
var matrix = new mat3(fragCoord0, fragCoord1, fragCoord2);
vec3 result = glm.inverse(matrix) * pixel;
// note: "sum" is not needed.
//float sum = result.x + result.y + result.z;
//p0 = result.x / sum; p1 = result.y / sum; p2 = result.z / sum;
// note: so, just need to assign values to p0, p1, p2.
p0 = result.x; p1 = result.y; p2 = result.z;
}