public void Begin()
{
if (IsDisposed)
{
throw new ObjectDisposedException(nameof(SpriteBatch));
}
gl.Disable(GL_CULL_FACE);
gl.Enable(GL_DEPTH_TEST);
gl.Enable(GL_BLEND);
gl.BlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
gl.BlendEquation(GL_FUNC_ADD_EXT);
_shaderProgram.Bind(gl);
gl.BindBuffer(GL_ARRAY_BUFFER, vertexBufferIds[0]);
gl.BindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferIds[0]);
gl.BindVertexArray(vaos[0]);
currTexture = white1x1Tex;
}
protected void BeforeRendering(OpenGL gl, RenderMode renderMode)
{
IScientificCamera camera = this.camera;
if (camera != null)
{
if (camera.CameraType == CameraTypes.Perspecitive)
{
IPerspectiveViewCamera perspective = camera;
this.projectionMatrix = perspective.GetProjectionMat4();
this.viewMatrix = perspective.GetViewMat4();
}
else if (camera.CameraType == CameraTypes.Ortho)
{
IOrthoViewCamera ortho = camera;
this.projectionMatrix = ortho.GetProjectionMat4();
this.viewMatrix = ortho.GetViewMat4();
}
else
{
throw new NotImplementedException();
}
}
modelMatrix = glm.scale(mat4.identity(), new vec3(1, 1, this.ZAxisScale));
gl.Enable(OpenGL.GL_VERTEX_PROGRAM_POINT_SIZE);
gl.Enable(OpenGL.GL_POINT_SPRITE_ARB);
gl.TexEnv(OpenGL.GL_POINT_SPRITE_ARB, OpenGL.GL_COORD_REPLACE_ARB, OpenGL.GL_TRUE);
gl.Enable(OpenGL.GL_POINT_SMOOTH);
gl.Hint(OpenGL.GL_POINT_SMOOTH_HINT, OpenGL.GL_NICEST);
gl.Enable(OpenGL.GL_BLEND);
gl.BlendEquation(OpenGL.GL_FUNC_ADD_EXT);
gl.BlendFuncSeparate(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA, OpenGL.GL_ONE, OpenGL.GL_ONE);
ShaderProgram shaderProgram = this.shaderProgram;
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
shaderProgram.Bind(gl);
shaderProgram.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "viewMatrix", viewMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "modelMatrix", modelMatrix.to_array());
shaderProgram.SetUniform1(gl, "canvasWidth", viewport[2] + 0.0f);
shaderProgram.SetUniform1(gl, "canvasHeight", viewport[3] + 0.0f);
shaderProgram.SetUniform1(gl, "opacity", this.Opacity);
this.texture.Bind(gl);
shaderProgram.SetUniform1(gl, "tex", this.texture.TextureName);
shaderProgram.SetUniform1(gl, "brightness", this.Brightness);
}
protected void BeforeRendering(OpenGL gl, RenderMode renderMode)
{
IScientificCamera camera = this.camera;
if (camera != null)
{
if (camera.CameraType == CameraTypes.Perspecitive)
{
IPerspectiveViewCamera perspective = camera;
this.projectionMatrix = perspective.GetProjectionMat4();
this.viewMatrix = perspective.GetViewMat4();
}
else if (camera.CameraType == CameraTypes.Ortho)
{
IOrthoViewCamera ortho = camera;
this.projectionMatrix = ortho.GetProjectionMat4();
this.viewMatrix = ortho.GetViewMat4();
}
else
{
throw new NotImplementedException();
}
}
modelMatrix = mat4.identity();
gl.Enable(OpenGL.GL_VERTEX_PROGRAM_POINT_SIZE);
gl.Enable(OpenGL.GL_POINT_SPRITE_ARB);
gl.TexEnv(OpenGL.GL_POINT_SPRITE_ARB, OpenGL.GL_COORD_REPLACE_ARB, OpenGL.GL_TRUE);
gl.Enable(OpenGL.GL_POINT_SMOOTH);
gl.Hint(OpenGL.GL_POINT_SMOOTH_HINT, OpenGL.GL_NICEST);
gl.Enable(OpenGL.GL_BLEND);
gl.BlendEquation(OpenGL.GL_FUNC_ADD_EXT);
gl.BlendFuncSeparate(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA, OpenGL.GL_ONE, OpenGL.GL_ONE);
gl.BindTexture(OpenGL.GL_TEXTURE_2D, this.texture[0]);
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
ShaderProgram shader = this.shaderProgram;
shader.Bind(gl);
shader.SetUniform1(gl, "tex", this.texture[0]);
shader.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
shader.SetUniformMatrix4(gl, "viewMatrix", viewMatrix.to_array());
shader.SetUniformMatrix4(gl, "modelMatrix", modelMatrix.to_array());
shader.SetUniform1(gl, "pointSize", this.textureWidth * 1.0f);
shader.SetUniform3(gl, "textColor", this.textColor.x, this.textColor.y, this.textColor.z);
}
public void Begin()
{
gl.Disable(GL_CULL_FACE);
gl.Enable(GL_DEPTH_TEST);
gl.Enable(GL_BLEND);
gl.BlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
gl.BlendEquation(GL_FUNC_ADD_EXT);
_shaderProgram.Bind(gl);
gl.BindBuffer(GL_ARRAY_BUFFER, vertexBufferIds[0]);
gl.BindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferIds[0]);
gl.BindVertexArray(vaos[0]);
currTexture = white1x1Tex;
}
