void element_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
var element = sender as FontElement;
Texture2D texture = element.texture;
texture.Bind();
if (element.blend)
{
GL.Enable(GL.GL_BLEND);
GL.BlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
}
ShaderProgram shaderProgram = element.shaderProgram;
shaderProgram.Bind();
shaderProgram.SetUniform(FontElement.strcolor, 1.0f, 1.0f, 1.0f, 1.0f);
shaderProgram.SetUniform(FontElement.strtex, texture.Name);
mat4 projectionMatrix = this.camera.GetProjectionMat4();
mat4 viewMatrix = this.camera.GetViewMat4();
mat4 modelMatrix = mat4.identity();
IMVP iMVP = sender as IMVP;
iMVP.SetShaderProgram(projectionMatrix * viewMatrix * modelMatrix);
}
static void IMVPElement_BeforeRendering(object sender, RenderEventArgs e)
{
// 三维场景中所有的元素都应在Camera的照耀下现形，没有Camera就不知道元素该放哪儿。
// UI元素不在三维场景中，所以其Camera可以是null。
if (e.Camera == null)
{
throw new ArgumentNullException();
//const float distance = 0.7f;
//viewMatrix = glm.lookAt(new vec3(-distance, distance, -distance), new vec3(0, 0, 0), new vec3(0, -1, 0));
//int[] viewport = new int[4];
//GL.GetInteger(GetTarget.Viewport, viewport);
//projectionMatrix = glm.perspective(60.0f, (float)viewport[2] / (float)viewport[3], 0.01f, 100.0f);
}
mat4 projectionMatrix, viewMatrix;
viewMatrix = e.Camera.GetViewMat4();
projectionMatrix = e.Camera.GetProjectionMat4();
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(projectionMatrix * viewMatrix * modelMatrix);
}
void element_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
rotation += 3.0f;
modelMatrix = glm.rotate(rotation, new vec3(0, 1, 0));
viewMatrix = this.camera.GetViewMat4();
projectionMatrix = this.camera.GetProjectionMat4();
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(mvp);
}
static void SimpleUI_BeforeRendering(object sender, RenderEventArgs e)
{
mat4 projectionMatrix, viewMatrix, modelMatrix;
{
IUILayout element = sender as IUILayout;
element.GetMatrix(out projectionMatrix, out viewMatrix, out modelMatrix, e.Camera);
}
{
IMVP element = sender as IMVP;
element.SetShaderProgram(projectionMatrix * viewMatrix * modelMatrix);
}
}
void axisElement_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
mat4 projectionMatrix = camera.GetProjectionMat4();
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = mat4.identity();
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(mvp);
}
void pyramidElement_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
mat4 projectionMatrix = camera.GetProjectionMat4();
projectionMatrix = glm.translate(projectionMatrix, new vec3(translateX, translateY, translateZ));//
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = mat4.identity();
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(mvp);
}
void pointLightElement_BeforeRendering(object sender, RenderEventArgs e)
{
mat4 projectionMatrix = camera.GetProjectionMat4();
projectionMatrix = glm.translate(projectionMatrix, new vec3(translateX, translateY, translateZ));//
//projectionMatrix = glm.scale(projectionMatrix, new vec3(0.1f, 0.1f, 0.1f));
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = glm.scale(mat4.identity(), new vec3(0.1f, 0.1f, 0.1f));
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(mvp);
}
void pyramidElement_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
rotation += 3.0f;
mat4 modelMatrix = glm.rotate(rotation, new vec3(0, 1, 0));
const float distance = 0.7f;
viewMatrix = glm.lookAt(new vec3(-distance, distance, -distance), new vec3(0, 0, 0), new vec3(0, -1, 0));
int[] viewport = new int[4];
GL.GetInteger(GetTarget.Viewport, viewport);
projectionMatrix = glm.perspective(60.0f, (float)viewport[2] / (float)viewport[3], 0.01f, 100.0f);
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(mvp);
}
void IMVP.SetShaderProgram(mat4 mvp)
{
IMVP element = this.axisElement as IMVP;
element.SetShaderProgram(mvp);
}