public void DrawChain()
{
GL.BindVertexArray(arrayNum);
GL.BindBuffer(BufferTarget.ArrayBuffer, bufferNum);
GL.DrawArrays(PrimitiveType.Triangles, 0, numVerts);
GLUtilities.ErrorCheck(string.Format("Drawing chain {0} + {1}", texture1, texture2));
}
public void UpdateShader(Shader shader)
{
shader.UseShader();
int cameraPos = GL.GetUniformLocation(shader.shaderID, "cameraPos");
int cameraOrientation = GL.GetUniformLocation(shader.shaderID, "cameraOrientation");
int cameraDistance = GL.GetUniformLocation(shader.shaderID, "cameraDistance");
GL.Uniform3(cameraPos, ref position);
GL.UniformMatrix4(cameraOrientation, false, ref orientation);
GL.Uniform1(cameraDistance, distance);
GLUtilities.ErrorCheck("Setting shader camera");
}
public void InitBuffer(TextureChain source)
{
texture1 = source.texture1; texture2 = source.texture2;
numVerts = source.numVerts;
bufferNum = GL.GenBuffer();
arrayNum = GL.GenVertexArray();
GL.BindVertexArray(arrayNum);
GL.BindBuffer(BufferTarget.ArrayBuffer, bufferNum);
GL.BufferData(BufferTarget.ArrayBuffer, source.pointer * sizeof(float), source.vertBuffer, BufferUsageHint.StaticDraw);
GLUtilities.ErrorCheck(string.Format("Uploading chain {0} + {1}", texture1, texture2));
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, sizeof(float) * 6, 0);
GLUtilities.ErrorCheck(string.Format("Chain {0} + {1} Attrib 0", texture1, texture2));
GL.EnableVertexAttribArray(1);
GL.VertexAttribPointer(1, 3, VertexAttribPointerType.Float, false, sizeof(float) * 6, sizeof(float) * 3);
GLUtilities.ErrorCheck(string.Format("Chain {0} + {1} Attrib 1", texture1, texture2));
}
